GE

Measurement & Control Solutions Flow

Sentinel LNG
User’s Manual

910-286 Rev. B
April 2011
GE
Measurement & Control Solutions

Sentinel LNG
Ultrasonic Flowmeter for Liquefied Natural Gas

User’s Manual
910-286 Rev. B
April 2011

www.ge-mcs.com

©2011 General Electric Company. All rights reserved.

Technical content subject to change without notice.
 [no content intended for this page]

ii
 Preface

Information Paragraphs
• Note paragraphs provide information that provides a deeper understanding of the situation, but is not essential to
the proper completion of the instructions.
• Important paragraphs provide information that emphasizes instructions that are essential to proper setup of the
equipment. Failure to follow these instructions carefully may cause unreliable performance.
• Caution! paragraphs provide information that alerts the operator to a hazardous situation that can cause damage to
property or equipment.
• Warning! paragraphs provide information that alerts the operator to a hazardous situation that can cause injury to
personnel. Cautionary information is also included, when applicable.

Safety Issues
WARNING! It is the responsibility of the user to make sure all local, county, state and national codes,
regulations, rules and laws related to safety and safe operating conditions are met for each
installation.

Auxiliary Equipment
Local Safety Standards
The user must make sure that he operates all auxiliary equipment in accordance with local codes, standards,
regulations, or laws applicable to safety.

Working Area
WARNING! Auxiliary equipment may have both manual and automatic modes of operation. As equipment
can move suddenly and without warning, do not enter the work cell of this equipment during
automatic operation, and do not enter the work envelope of this equipment during manual
operation. If you do, serious injury can result.
WARNING! Make sure that power to the auxiliary equipment is turned OFF and locked out before you
perform maintenance procedures on the equipment.
Qualification of Personnel
Make sure that all personnel have manufacturer-approved training applicable to the auxiliary equipment.

Personal Safety Equipment

Make sure that operators and maintenance personnel have all safety equipment applicable to the auxiliary equipment.
Examples include safety glasses, protective headgear, safety shoes, etc.

Unauthorized Operation
Make sure that unauthorized personnel cannot gain access to the operation of the equipment.

Sentinel LNG User’s Manual iii

Preface

Environmental Compliance
Waste Electrical and Electronic Equipment (WEEE) Directive
GE Measurement & Control Solutions is an active participant in Europe’s Waste Electrical and Electronic Equipment
(WEEE) take-back initiative, directive 2002/96/EC.

The equipment that you bought has required the extraction and use of natural resources for its production. It may
contain hazardous substances that could impact health and the environment.

In order to avoid the dissemination of those substances in our environment and to diminish the pressure on the natural
resources, we encourage you to use the appropriate take-back systems. Those systems will reuse or recycle most of the
materials of your end life equipment in a sound way.

The crossed-out wheeled bin symbol invites you to use those systems.

If you need more information on the collection, reuse and recycling systems, please contact your local or regional
waste administration.

Visit http://www.ge-mcs.com/en/about-us/environmental-health-and-safety/1741-weee-req.html for

take-back instructions and more information about this initiative.

iv Sentinel LNG User’s Manual

 Contents

Chapter 1. Features and Capabilities

1.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1.1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1.2 Advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1.3 Meter Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1.4 Name and Specification Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2.1 Transit-Time Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2.2 Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2.3 Multipath Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2.4 Flow Ranges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3.1 Operation and Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3.2 Meter Body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.3.3 Electronics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
1.3.4 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
1.4 Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
1.5 Warnings and Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Chapter 2. Installation
2.1 Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
2.2 Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
2.3 Mechanical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
2.3.1 Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
2.3.2 Installation Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
2.3.3 Installing the System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
2.3.4 Guidelines for Installing Pipe Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
2.4 Making Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
2.4.1 Removing the Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
2.4.2 Cable Tie-Down Posts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
2.4.3 Wiring the Line Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
2.4.4 Wiring the Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
2.4.5 Wiring the Modbus Communications Line (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
2.4.6 Wiring the Alarm Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
2.4.7 Wiring the 4-20mA Analog Inputs (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
2.4.8 Wiring the Frequency Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
2.4.9 Wiring the 4-20 mA Analog Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

Sentinel LNG User’s Manual v

Contents

Chapter 3. General Programming

3.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
3.2 Keypad Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
3.2.1 Indicator Lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
3.2.2 The Magnetic Stylus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
3.3 Program Menu Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
3.3.1 Channel Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
3.3.2 Composite Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
3.3.3 Advanced Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
3.4 Unlocking and Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
3.4.1 Unlocking the Sentinel LNG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
3.4.2 Locking the Sentinel LNG. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
3.5 Setting Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
3.5.1 Edit Passcodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
3.5.2 Security Timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
3.5.3 Set Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
3.6 Channel Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
3.6.1 Activating a Channel/Path/CHX (Status). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
3.6.2 Entering Fluid Data (Not supported at this time) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
3.6.3 Entering Signal Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
3.6.4 Entering Error Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
3.7 Composite Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
3.7.1 Entering Fluid Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
3.7.2 Entering Signal Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
3.7.3 Setting Up Input Data Feeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
3.7.4 Setting Up API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
3.8 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
3.9 Inputs/Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
3.9.1 Analog Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
3.9.2 Frequency/Totalizers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
3.9.3 Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
3.9.4 Analog Inputs (Additional Option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
3.9.5 RTD (Additional Option). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
3.10 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
3.11 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
3.12 User Security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
3.12.1 Edit Passcodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
3.12.2 Security Timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
3.12.3 Set Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
3.13 Factory Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

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Chapter 4. Advanced Programming

4.1 Entering Transducer Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
4.1.1 Clamp-On Transducers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
4.1.2 Other Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
4.1.3 Wetted Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
4.2 Entering Path Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
4.3 Entering Signal Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
4.4 Entering the Meter Correction (K) Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
4.5 Entering Pipe Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
4.6 Entering the Pipe Material. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
4.7 Entering Pipe Lining Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
Chapter 5. Using PanaView
5.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
5.2 Wiring the RS232 Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
5.3 Establishing Communications with Panaview™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
5.3.1 Adding a Communications Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
5.3.2 Adding the Sentinel LNG to the Communications Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
5.4 Meter Security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
5.5 Meter Properties. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
5.6 Program Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
5.6.1 Status Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
5.6.2 Transducer Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
5.6.3 Fluid Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
5.6.4 Path Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
5.6.5 Signal Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
5.6.6 K Factor Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
5.6.7 Error Limits Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
5.7 Composite Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
5.7.1 Pipe Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
5.7.2 Fluid Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
5.7.3 Signal Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
5.7.4 K Factors Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
5.7.5 Weight Factors Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
5.7.6 Inputs Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
5.7.7 API Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

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Chapter 5. Using PanaView (cont.)

5.8 Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
5.8.1 Units Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
5.8.2 Communication Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
5.8.3 Reset Totals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
5.8.4 Totalizer Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
5.9 Input/Output Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
5.9.1 Analog Outputs Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
5.9.2 Frequency/Totals Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
5.9.3 Alarms Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
5.9.4 Slot 1 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
5.9.5 Slot 2 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
5.10 Display Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
5.10.1 Views Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
5.10.2 Contrast and Backlight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
5.10.3 Display Mode Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
5.11 Calibrate Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
5.12 User Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
5.12.1 Edit Passcodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
5.12.2 Set Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
5.13 Factory Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
5.13.1 Checking Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
5.13.2 Confirming Meters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Chapter 6. MODBUS Communications
6.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
6.2 Setting Up MODBUS Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

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Chapter 7. HART Communications

7.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
7.2 Wiring the HART Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
7.3 Flowmeter Software Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
7.4 Product Interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
7.4.1 Process Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
7.4.2 Host Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
7.5 Device Variables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
7.6 Dynamic Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
7.7 Status Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
7.7.1 Device Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
7.7.2 Extended Device Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
7.7.3 Additional Device Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
7.8 Universal Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
7.9 Common-Practice Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
7.9.1 Supported Common Practice Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
7.9.2 Burst Mode Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
7.9.3 Catch Device Variable Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
7.10 Device-Specific Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
7.10.1 Command 181 (0xB5): Clear Totals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
7.11 Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
7.11.1 HART Engineering Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
7.12 Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
7.12.1 Sampling Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
7.12.2 Power-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
7.12.3 Device Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
7.12.4 Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
7.12.5 Command Response Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
7.12.6 Busy and Delayed Response. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
7.12.7 Long Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
7.12.8 Non-Volatile Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
7.12.9 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
7.12.10 Write Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
7.12.11 Write Protect Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
7.12.12 Totals Protect Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
7.13 Capability Checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
7.14 Default Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
7.15 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191

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Chapter 8. Maintenance
8.1 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
8.1.1 Updating Sentinel LNG Instrument Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
8.1.2 Checking the Meter Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
8.1.3 Trimming 4-20 mA Using the Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
8.2 Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
8.3 Installing Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Chapter 9. Troubleshooting
9.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
9.2 Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
9.2.1 E0: No Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
9.2.2 E1: Low Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
9.2.3 E2: Soundspeed Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
9.2.4 E3: Velocity Range Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
9.2.5 E4: Signal Quality Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
9.2.6 E5: Amplitude Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
9.2.7 E6: Cycle Skip, Acceleration Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
9.2.8 E7: Analog Output Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
9.2.9 E13: Settle Tracking AGC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
9.2.10 E14: Tracking Seek Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
9.2.11 E15: Active Tw Error. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
9.2.12 E16: Totalizer Overflow Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
9.2.13 E17: Temperature Input Error. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
9.2.14 E18: Pressure Input Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
9.2.15 E19: Density Input Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
9.2.16 E20: Special Input Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
9.2.17 E21: API Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
9.2.18 E22: Degraded Performance Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
9.2.19 E30: Channel Disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
9.3 Displaying Diagnostic Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
9.4 Fluid and Pipe Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
9.4.1 Fluid Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
9.4.2 Pipe Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
9.5 Transducer Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
9.5.1 Clamp-on Transducer Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
9.6 Audit Trail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
9.6.1 Audit Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
9.6.2 Reading Audit Log Records. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
9.6.3 Formatting and Viewing Log Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
9.7 Uncertainty in Flow Rate for a Non-Insulated Meter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

x Sentinel LNG User’s Manual

 Contents

Appendix A. Menu Maps

Appendix B. CE Mark Compliance and High Noise Areas
B.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
B.2 EMC Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Appendix C. Data Records
C.1 Site Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Appendix D. Service Record
D.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
D.2 Data Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
D.3 Diagnostic Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231

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Contents

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xii Sentinel LNG User’s Manual

 Chapter 1. Features and Capabilities

Chapter 1. Features and Capabilities

1.1 Overview
The GE Sensing Sentinel LNG is an ultrasonic liquid flow transmitter that includes a multipath ultrasonic flowmeter.
The entire system is shipped fully assembled and preconfigured.

1.1.1 Applications
The Sentinel LNG is designed specifically for the custody transfer of liquified natural gas.
Liquified natural gas, or LNG, is natural gas (predominantly methane, CH4) that has been converted temporarily to
liquid form for ease of storage or transport.

Liquified natural gas takes up about 1/600th the volume of natural gas in the gaseous state. It is odorless, colorless,
non-toxic and non-corrosive. Hazards include flammability, freezing and asphyxia.

The liquefication process involves removal of certain components, such as dust, acid gases, helium, water, and heavy
hydrocarbons, which could cause difficulty downstream. The natural gas is then condensed into a liquid at close to
atmospheric pressure (Maximum Transport Pressure set around 25 kPa/3.6 psi) by cooling it to approximately –162°C
(–260°F).

1.1.2 Advantages
The Sentinel LNG features numerous unique advantages:
• 0.25% Accuracy

• Capable of handling cryogenic LNG temperatures, typically at –162°C (–260°F).

• Fast response electronics

• Advanced signal processing

• Fully welded on transducers’ buffer rods, resulting in a fully-sealed system.

• Zero pressure drop

• Bi-directional flow capability

• Excellent low-end and high-end resolution

• Active Tw compensation, a compensation algorithm for temperature gradients within the ultrasonic transducer
and buffer system.
• High turndown ratio

• Low sensitivity to many upstream flow disturbances

• Minimal maintenance

• Transducer replacement without the need for pipe shutdown or recalibration

• Removable/replaceable transducers

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Chapter 1. Features and Capabilities

1.1.3 Meter Components

Figure 1 on page 3 shows the complete Sentinel LNG system and each of the items is described in Table 1 and Table 2
below.
Table 1: Sentinel LNG System Components
No. Component Description Qty
1 Meter Body Measurement section of a Sentinel LNG System. 1
2 Name and Specification Plate All pertinent information in a single location. 1
Device to support a transducer and provide a mounting point for the
3 Transducer Holder Assembly 4
Insertion Mechanism.
4 Transducer Flow sensor to transmit and receive ultrasonic waves. 4
Cable Assembly - Transducer Conductors assembled and rated for hazardous areas.
5 4
to Electronics Unit
6 Explosion-Proof Junction Box Housing for electrical connections in hazardous area. 4
Meter electronics equipment, including power supply, processing unit
7 Electronics Unit 1
and communications.
Location for power and communications connections. Cable glands
8 External Conduits Connection 4
are 3/4” NPT.
9 Nuts and Bolts Hardware to hold flanges together. AR

Table 2: Sentinel LNG Component Materials

Component Materials (ASTM)
Pipe Flanges and Fittings Carbon Steel (A105 or A350 LF2*)
Pipe Sections Carbon Steel (A106 Gr. B or A333 Gr. 6*)
Transducer Holder Parts Stainless Steel 316/316L (A276)
T11 Transducers Titanium CP Gr. 2 (B348/B381) or Stainless Steel 316/316L (A276)

* A350 LF2 and A333 Gr. 6 are used for low temperature service and are specified by the customer.

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 Features and Capabilities

Figure 1: Sentinel LNG Assembly for Pipes 4-36” dia. (ref. dwg #577-071)
CABLE RUN LIST
XDCRS
ELECTRONICS PORT
LABEL (FLOW CELL) CABLE DESIGNATIONS
LOCATION & CABLE
POSITIONS
442-1248-01 (ITEM 390) UP1 DUAL A (BNC PLUG) A (MCX CABLE - UP1)
442-1248-03 (ITEM 392) UP3 SINGLE A (BNC PLUG) DUAL A (BNC JACK) A (MCX CABLE - UP3)
442-1248-02 (ITEM 391) UP2 DUAL B (BNC PLUG) B (MCX CABLE - UP2)
442-1248-04 (ITEM 393) UP4 SINGLE B (BNC PLUG) DUAL B (BNC JACK) B (MCX CABLE - UP4)
442-1248-05 (ITEM 394) DN1 DUAL C (BNC PLUG) C (MCX CABLE - DN1)
442-1248-07 (ITEM 396) DN3 SINGLE C (BNC PLUG) DUAL C (BNC JACK) C (MCX CABLE - DN3)
442-1248-06 (ITEM 395) DN2 DUAL D (BNC PLUG) D (MCX CABLE - DN2)
442-1248-08 (ITEM 397) DN4 SINGLE D (BNC PLUG) DUAL D (BNC JACK) D (MCX CABLE - DN4)

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 Chapter 1. Features and Capabilities

1.1.4 Name and Specification Plate

The location of the Sentinel LNG specification plate is shown in Figure 1 on page 3. Figure 2 below shows a blank
plate. The specifications can be filled in by the user, for quick reference while using the manual.

Tag #:
Order String:

Assembly Date:
S/N:
PO#:
SO#:
Meter Size:
ID:
Qmin /Q max :
HF Output:
Storage Temp:
Oper. Temp:
Oper. Pressure:
Test Pressure:
Hygro Test Date:
Flange Class:
Dry Weight:
Meter Body Material:
Flange Material:
Body Design Code:
Flange Design Code:
Type Approval Number:
Flow Cell Mfg:
Mfg Serial No:
NoBo ident. No:

Figure 2: Sentinel LNG Data Plate

1.2 Theory of Operation

The Sentinel LNG Measurement System uses ultrasonic transit-time technology. A brief description of transit-time
theory follows. For more information about the the theory, and the use of GE Sensing ultrasonic flowmeters for
measuring flow, please refer to Ultrasonic Measurements for Process Control by L.C. Lynnworth (Academic Press,
1989)

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Chapter 1. Features and Capabilities

1.2.1 Transit-Time Method

The transit time technique uses a pair of transducers, with each transducer alternately sending and receiving coded
ultrasonic signals through the fluid. Figure 3 below shows the paths used in the Sentinel LNG. When the fluid is
flowing, signal transit time in the downstream direction is shorter than in the upstream direction; the difference
between these transit times is proportional to the flow velocity. The Sentinel LNG measures this very small time
difference and, using various digital signal processing techniques combined with programmed pipe parameters,
determines the flow rate and direction.

Figure 3: Path Configuration

1.2.2 Transducers
When in a transmit cycle, transducers convert electrical energy into ultrasonic pulses and then convert the ultrasonic
pulses back to electrical energy when in a receive cycle. In other words, they act like loudspeakers when transmitting
the signal and like microphones when receiving it. They perform the actual data transmission and collection, thus
interrogating the flow.

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 Chapter 1. Features and Capabilities

1.2.3 Multipath Design

Multipath ultrasonic flowmeters are designed with more than one pair of transducers to interrogate the flow field in
different locations and more accurately determine the actual flow rate. The Sentinel LNG Measurement System uses
four measurement locations. These measurement paths are located across the meter body and tilted at an angle. The two
measurement paths are orthogonal to each other (see Figure 3 on page 6).

1.2.4 Flow Ranges

Typical flow rates for 0.5 m (19.6 in) per second and 10 m (393 in) per second are listed below. The Sentinel LNG is a
full bore meter and the flow range is a function of the pipe and not the meter itself.

Table 3: Flow Ranges

0.5 m/s 10 m/s 0.5 m/s 10 m/s 0.5 m/s 10 m/s
Nominal Diameter 1.69 ft/s 33 ft/s 1.69 ft/s 33 ft/s 1.69 ft/s 33 ft/s
in mm (m3/h) (m3/h) (GPM) (GPM) (BBL/h) (BBL/h)
4 100 15 280 66 1230 94 1760
6 150 33 630 145 2770 207 3960
8 200 58 1130 255 4980 364 7120
10 250 91 1800 400 7900 573 11300
12 300 131 2500 580 11000 825 15700
14 350 179 3500 790 15400 1130 22000
16 400 233 4500 1030 19800 1470 28300
18 450 296 5700 1300 25100 1860 35900
20 500 365 7000 1600 30800 2300 44000
24 600 525 10000 2310 44000 3300 63000

1.3 Specifications
The system specifications for the Sentinel LNG Ultrasonic Liquid Flow Transmitter are divided into the following
categories:
1.3.1 Operation and Performance
1.3.1a Fluid Types
Liquified Natural Gas
1.3.1b Flow Measurement
Correlation Transit Time mode
1.3.1c Accuracy
< ± 0.20% of measured volume for flow rates between 2 and 30 ft/s (0.5 and 10 m/s).

1.3.1d Zero Stability

< 0.007 ft/s

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Chapter 1. Features and Capabilities

1.3.1 Operation and Performance (cont.)

1.3.1e Process Temperature
–200° to +120°C

1.3.1f Ambient Temperature

–40° to +60°C

1.3.1g Storage Temperature

–40° to +80°C

1.3.2 Meter Body

1.3.2a Path Configuration
4 path Robust Path Configuration™

1.3.2b Meter Body Materials

• Stainless steel A182, Gr 304/304L

• Stainless steel A182, Gr 316/316L

Others on request.

1.3.2c Flow Cells

4” (100 mm) to 24” (600 mm)

Others on request

Figure 4: Flowcell Assembly

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 Chapter 1. Features and Capabilities

1.3.2c Flow Cells (cont.)

Note: Use Figure 4 on page 8 to identify the A and C measurements in Table 4 below.

Table 4: Flowcell Dimensions

Dimensions and Weights in English Units Dimensions and Weights in Metric Units
Diameter Flange Diameter Flange
A (in) C (in) Weight (lb) A (mm) C (mm) Weight (kg)
(inches) Weight (lb) (inches) Weight (kg)
150 20 23.49 149 56 508 597 68
4 300 20 23.99 176 4 112 508 609 80
600 20 24.365 200 224 508 619 91
150 22 25.76 209 56 559 654 95
6 300 24 26.51 265 6 112 610 673 120
600 26 27.26 338 224 660 692 153
150 26 27.59 268 56 660 701 122
8 300 28 28.34 343 8 112 711 720 156
600 30 29.09 452 224 762 739 205
150 28 29.84 367 56 711 758 166
10 300 30 30.59 487 10 112 762 777 221
600 32 31.84 739 224 813 809 335
150 30 32.59 478 56 762 828 217
12 300 32 33.34 681 12 112 813 847 309
600 36 34.09 957 224 914 866 434
150 36 34.09 790 56 914 866 358
14 300 38 35.09 1079 14 112 965 891 489
600 40 35.465 1339 224 1016 901 607
150 38 36.84 989 56 965 936 449
16 300 40 37.84 1348 16 112 1016 961 611
600 42 38.59 1770 224 1067 980 803
150 38 37.84 1056 56 965 961 479
18 300 40 39.34 1527 18 112 1016 999 693
600 44 39.965 2076 224 1118 1015 942
150 46 41.25 1424 56 1168 1048 646
20 300 48 42.75 2120 20 112 1219 1086 962
600 50 41.25 2819 224 1270 1105 1280
150 48 44.59 1990 56 1219 1133 903
24 300 50 46.59 2947 24 112 1270 1183 1337
600 52 47.09 3946 224 1321 1196 1790

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Chapter 1. Features and Capabilities

1.3.2d Flange Ratings

• 150 #

• 300 #
Others on request.

1.3.2e Pipe Schedules

• 10S

• 40S

• STD
Others on request.

1.3.2f PED Compliance

• ASME B31.3

• PED Cat III, Module H

1.3.2g Installation Requirement

The meter must be installed with 20D straight piping upstream and 10D straight piping downstream. Inlet and outlet
piping shall match the meter ID. Pressure, temperature and density connections must be located in the downstream
piping. The 20D upstream piping must be free of items that could disturb the flow profile.

1.3.3 Electronics
1.3.3a Electronics Enclosure Material
Epoxy-coated aluminum

1.3.3b Weight
25 lb (11.5 kg)

1.3.3c Dimensions
Size (lxhxd): 13” x 11” x 9” (33 x 27 x 23 cm)

1.3.3d Ingress Protection

• USA / Canada: Type 4

• Europe: IP66

1.3.3e Power Supply

• 100 - 240 VAC
• 12 - 32 VDC

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 Chapter 1. Features and Capabilities

1.3.3f Power Consumption

< 20 Watts

1.3.3g Display
High contrast 128 x 64 pixel graphical display with LED illumination.

1.3.3h Outputs
• Two frequency/pulse isolated outputs

• Two alarm relays

• One 4/20 mA isolated output with HART

1.3.3i Inputs
Two 4/20 mA and one 100 Ohm RTD input for density, pressure and temperature input (optional), or
Three 4/20 mA inputs for density, pressure and temperature input (optional).

1.3.3j Digital Interfaces

• HART over 4/20 mA output

• PanaLink over RS232/485/USB

• Modbus over RS232/485 (optional)

1.3.3k Flow Computer Functionality

Integrated flow computer with full P and T volume corrections according to API 11.1

1.3.3l Hazardous Area Classification

• USA / Canada:
Class I, Division 1, Groups B, C and D; T6
Class II and III, Division 1, Groups E, F & G: T6
Ta = –40°C to +60°C
Enclosure Type 4X & IP66
• Europe:
ATEX and IECEx:
II 2 G Ex d IIB + H2, T6 IP66
II 2 D Ex tD A21 IP66 T85C
Ta = –40° to +60°C

1.3.3m CE Marking Compliance

• 2006/95/EC Low Voltage Directive

• 97/23/EC Pressure Equipment Directive

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Chapter 1. Features and Capabilities

1.3.4 Ordering Information

1.3.4a Sentinel Electronics SEN898
Table 5 below shows how the Sentinel LNG Electronics SEN898 part numbers are configured from the options
specified.

A - B - C - D - E - F - G - Z
SEN898 - - - - - - -

Table 5: Sentinel LNG Electronics Ordering Information

LTR CATEGORY OPTIONS
1 = 100 to 240 VAC operating voltage
B Power
2 = 12 to 32 VDC operating voltage
1 = One 100 Ohm RTD input; Two 4-20mA inputs
C Inputs
2 = Three 4-20mA inputs
0 = Std W/2 frequency/pulse outputs, one 4-20mA output w/HART, two alarms and
D Communications Panalink over RS232/RS485/USB
1 = Modbus RTU over RS232/RS485
E Flow Computer LNG = Active compensation for tube contraction (for LNG only, 3 input board)
1 = N. American Explosion Proof, Class 1, Div 1, groups B, C and D
F Certifications 2 = European Flame Proof, II 2G Ex d IIC
3 = European Flame Proof increased safety, II 2G Ex de IIC
L = Local mounting on SEN-LNG Flowcell
Electronics
G R = Remote mounting from SEN-LNG Flowcell
Mounting
S = Stand-alone unit w/ remote mounting; cable length selectable (max. 300 ft, 91.4 m)

Special 0 = None
Z
Requirements S = Special

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 Chapter 1. Features and Capabilities

1.3.4b Sentinel LNG Liquid Custody Transfer Flowmeter

Table 6 below shows how the Sentinel LNG Flow Section part numbers are configured from the options specified.

A - B - C - D - E - F - G - H - I - Z
SEN-LNG - - - - - - - - -

Table 6: Sentinel LNG Flow Section Ordering Information

LTR CATEGORY OPTIONS
4 = 4” 10 = 10” 14 = 14” 18 = 18” 24 = 24”
B Nominal Size* 6 = 6” 12 = 12” 16 = 16” 20 = 20” 36 = 36”
8 = 8”
150 = 150 lbs pressure rating
C Pressure Class
300 = 300 lbs pressure rating
304 = Stainless Steel, A182 Grade 304/304L
D Material
316 = Stainless Steel, A182 Grade 316/316L
10S = Schedule size 10S
40S = Schedule size 40S
E Schedule
STD = Standard
S = Special
A = ASME B31.3
F Design Criteria
P = ASME B31.3 with PED
G Electronics Mtg S = Remote Mounting, cable length selectable (max 300 ft)
0 = None
H Material Certs 1 = Material Certs
2 = Material certs with EN 10204 3.1 inspection certificate
0 = None
NACE
I 1 = NACE MR0175
Requirements
2 = NACE MR0103
Special 0 = None
J
Requirements S = Special
* SEN-LNG Flowcell w/ RF Flanges according to ASME B16.5 for sizes 4-24”
SEN-LNG Flowcell w/ RF Flanges according to ASME B16.47 for size 36”

Sentinel LNG User’s Manual 13

Chapter 1. Features and Capabilities

1.4 Disclaimer

The warranties set forth herein are exclusive and are in lieu of all other warranties whether statutory,
express or implied (including warranties of merchantability and fitness for a particular purpose, and
warranties arising from course of dealing or usage or trade).

1.5 Warnings and Cautions

WARNING! The Sentinel Flow Measurement System measures the flow rate of hazardous fluids. The
importance of proper safety practices cannot be overemphasized.
So be sure to follow all applicable local safety codes and regulations for installing electrical
equipment and working with hazardous gases or flow conditions. Consult company safety
personnel or local safety authorities to verify the safety of any procedure or practice.

!ATTENTION EUROPEAN CUSTOMERS!

To meet CE Mark requirements, all cables must be installed as described in Appendix B,
CE Mark Compliance.

WARNING! Always disconnect the line power from the meter before removing either the front cover or the
side cover. This is especially important in a hazardous environment.
WARNING! Improper connection of the line power leads or connecting a Sentinel to the incorrect line
voltage may damage the unit. It may also result in hazardous voltages at the meter body and
associated piping as well as within the electronics enclosure.
WARNING! Make sure the front and side covers, along with their O-ring seals, are installed on the
transmitter, and the set screws tightened before applying power in a hazardous environment.
WARNING! Never remove the flowmeter covers in a hazardous environment while the line power is on.

14 Sentinel LNG User’s Manual

 Chapter 2. Installation

Chapter 2. Installation
2.1 Installation Guidelines
This section provides general information with respect to the mechanical and electrical installation, and should be
thoroughly reviewed before the system is installed. To ensure safe and reliable operation of the Sentinel LNG, the
system must be installed in accordance with the guidelines established by GE Sensing, as explained in this chapter.

WARNING! The Sentinel LNG Ultrasonic Liquid Flow Transmitter measures the flow rate of hazardous fluids.
The importance of proper safety practices cannot be overemphasized.
So be sure to follow all applicable local safety codes and regulations for installing electrical
equipment and working with hazardous liquids or flow conditions. Consult company safety
personnel or local safety authorities to verify the safety of any procedure or practice.

!ATTENTION EUROPEAN CUSTOMERS!

To meet CE Mark requirements, all cables must be installed as described in Appendix B,
CE Mark Compliance.

2.2 Bill of Materials

The following items should have been included in the shipment:

• Sentinel LNG flowmeter body

• Sentinel SEN898 electronics

• Magnetic Stylus

• User’s Manual on CD

• CD with PanaView Software

Sentinel LNG User’s Manual 15

Chapter 2. Installation

2.3 Mechanical Installation

2.3.1 Location
For both uni-directional and bi-directional flow (see Figure 5 and Figure 6 below), a minimum of five diameters of
straight pipe shall be provided by the customer on either side of the meter run, directly upstream of the flow
conditioning plate and downstream of any disturbances or pipe bends. An additional length of straight pipe will help
produce a more symmetrical flow profile, thus reducing the measurement uncertainty.

Flow
Direction

Flow Sentinel Flowmeter

Conditioning
Plate

Ten-Diameter-
Long Spoolpiece

Five Diameters
of Straight Pipe
(minimum)

Figure 5: Typical Sentinel LNG Installation, Uni-Directional Flow

Flow Direction
Sentinel Flowmeter

Flow
Conditioning
Plate
Flow
Conditioning
Five Diameters Plate
of Straight Pipe
(minimum)

Five Diameters
of Straight Pipe
(minimum)

Figure 6: Typical Sentinel LNG Installation, Bi-Directional Flow

16 Sentinel LNG User’s Manual

 Chapter 2. Installation

2.3.2 Installation Precautions

Any questions with respect to the installation should be addressed prior to beginning the installation. Failure to install
the Sentinel LNG correctly can increase measurement uncertainty.
CAUTION! To avoid possible strain, refer to the Sentinel LNG label for the assembly weight, use a
properly-rated lifting assembly, and place the lifting straps in the indicated locations (see
Figure 7 below).

All the mechanical and electronic components are shipped fully assembled (see Figure 1 on page 3), however the
following precautions should be observed:

• Make sure the difference between the inside diameter of the pipe and that of the Sentinel LNG spoolpiece does not
exceed 1%. (Changes in internal diameters will cause flow profile disturbances.)
• Make sure any non-symmetrical offset does not exceed 1%. (Misalignment between the piping and the spoolpiece
may cause flow profile disturbances.)
• Make sure the gasket is centered on the flange faces and does not protrude into the pipe. (Protrusion of the gasket
into the pipe may cause flow profile disturbances.)
• Make sure the Sentinel LNG is oriented with the flow transmitter in a vertical position at the top (see Figure 7
below).

Figure 7: Lifting Strap Locations

Sentinel LNG User’s Manual 17

Chapter 2. Installation

2.3.3 Installing the System

Being mindful of Installation Precautions listed on page 17, complete the following steps:

1. Make sure the gaskets are in place on the flanges.

2. Support the Sentinel LNG between the flanges on the pipe.
3. Align the flange mounting holes (see Figure 8 below).
4. Secure the spoolpiece to the pipe by using the appropriate hardware.

Figure 8: Sentinel End View - Mounting Flange

2.3.4 Guidelines for Installing Pipe Insulation

If pipe insulation is required:

1. Install all insulation materials and accessories in accordance with the manufacturer's instructions and the
recognized industry practices. Adhere to the local code where applicable to ensure that the safe and proper
installation will serve its intended purpose.
2. Install the insulation material in layers, with smooth and even surfaces. Allow adequate space (air pockets) around
all extended transducer buffer rods, conduit fittings, junction boxes, and cables, for proper ventilation. Avoid using
cut pieces or scrap insulation when abutting the sections being installed. Butt insulation joints firmly to ensure a
complete, tight fit over and around all piping surfaces.
3. Maintain the integrity of any factory-applied vapor barrier jacketing on all pipe insulation, if applicable. Seal all
joints and seams, protecting the insulation against puncture, tears or other damage.

18 Sentinel LNG User’s Manual

 Chapter 2. Installation

2.4 Making Electrical Connections

This section contains instructions for making the necessary electrical connections to the flow transmitter (see Figure 9
below). The wiring between transmitter and transducers has been accomplished at the factory. No further work is
required on this portion of the wiring.

IMPORTANT: When wires are connected to terminal blocks, use wire ties routed through the blocks, to secure them.

!ATTENTION EUROPEAN CUSTOMERS!

To meet CE Mark requirements, all cables must be installed as described in Appendix B,
CE Mark Compliance.

IMPORTANT: The meter spoolpiece is grounded to the electronics. This configuration must be considered when
applying cathodic protection to the pipe line. The power ground applied to the instrument should be at
the cathodic protection voltage level.

2 Frequency
2 Alarms
1 Analog Output (4-20 mA) with HART
3 Analog Inputs (4-20 mA) or
2 Analog Inputs (4-20 mA) +
1 RTD Input Corrected
Flow Volumetric
RS485/RS232 Modbus Computer Flow
Power

RS232
or Pressure Temperature
RS485

Sentinel LNG
Sentinel

PanaView™
Meter Calibration, Data Collection,
Instrument Interface
Configuration, and Security
Software

Figure 9: Sentinel LNG Flow Measurement System Connections

Sentinel LNG User’s Manual 19

Chapter 2. Installation

2.4.1 Removing the Covers

WARNING! Always disconnect the line power from the meters before removing either the front cover or the
side cover. This is especially important in a hazardous environment.

1. Disconnect any previously wired power line from the flow transmitter.
2. Loosen the set screw on the side cover using a 2.5 mm hex wrench.
3. Place a rod or long screwdriver across the cover in the slots provided, and rotate the cover counterclockwise until it
comes free from the enclosure.
4. Note the text imprinted on the terminal board (see Figure 10 below) to assist in wiring the power and option card
connections.

Proceed to the appropriate section of this chapter to make the desired wiring connections.

L1 L2/N G

Figure 10: Terminal Board with Imprinted Text (Three 4-20mA Input Options)

20 Sentinel LNG User’s Manual

 Chapter 2. Installation

2.4.2 Cable Tie-Down Posts

There are two cable tie-down posts provided in the Sentinel LNG (see Figure 11 below). These posts enable the user to
insert a cable tie through them, and secure wiring coming into or out of the instrument. The posts rotate on the printed
circuit board to provide ease-of-use.

• Power Cable Tie-Down Post - Use this tie-down post to secure the instrument power securely.

• Optional I/O Cable Tie-Down Post - Use this optional tie-down post to secure any other instrument I/O securely.

Optional I/O Cable Power Cable

Tie-Down Post Tie-Down Post

Figure 11: Cable Tie-Down Posts Locations

Sentinel LNG User’s Manual 21

Chapter 2. Installation

2.4.3 Wiring the Line Power

The Sentinel LNG may be ordered for operation with a power input of 100-240 VAC or 12-32 VDC (see the
Electronics Ordering Information in Table 5 on page 12). The label on the side of the electronics enclosure lists the
required line voltage and power rating. The fuse size is listed in Specifications in Chapter 1. Be sure to connect the
Sentinel LNG to the specified line voltage only.

Note: For compliance with N. American and European Low Voltage Directive (2006/95/EC), this unit requires an
external power disconnect device such as a switch or circuit breaker. The disconnect device must be marked as
such, clearly visible, directly accessible, and located within 1.8 m (6 ft) of the unit.

Note: Use one conduit inlet for power. Use the two other conduit inlets for input/output as needed. All unused conduit
inlet ports should be sealed with suitable blanking elements.

See Figure 13 on page 23 to locate terminal block TB1 and to connect the line power as outlined below:

WARNING! Improper connection of the line power leads or connecting a Sentinel to the incorrect line
voltage may damage the unit. It may also result in hazardous voltages at the meter body and
associated piping as well as within the electronics enclosure.

1. Prepare the line power leads by trimming the line and neutral AC power leads (or the positive and negative DC
power leads) to a length 0.5 in. (1 cm) shorter than the ground lead. This ensures that the ground lead is the last to
detach if the power cable is forcibly disconnected from the meter.

Figure 12: Conduit Inlet Ports

2. Route the cable through one of three conduit inlet ports (see Figure 12 above) and connect the line power leads to
the terminal block TB1, using the pin number assignments shown in Figure 27 on page 34 and Figure 13 or
Figure 14 on page 23.

!ATTENTION EUROPEAN CUSTOMERS!

To meet CE Mark requirements, all cables must be installed as described in Appendix B,
CE Mark Compliance.

22 Sentinel LNG User’s Manual

 Chapter 2. Installation

2.4.3 Wiring the Line Power (cont.)

Note: All wires shall have a temperature/type rating 10K above the maximum service temperature of 85°C, be
stripped back 5/16 in. (8 mm) and torqued to a minumum of 4.4 in. lb. (0.5 Nm).

3. Run the AC power connections to the Power Terminal Block shown in Figure 13 below. It is recommended to use
12-18 AWG (3.3 - 0.82 mm2) power wiring.
4. Strip 1/4-in. of insulation from the end of each of the three line power leads.
5. Route the cable through one of three conduit inlet ports (see Figure 12 above) and connect the line power leads to
terminal block TB1, using the pin assignments shown in Figure 27 on page 34 and Figure 13 or Figure 14 below.
6. Leaving a bit of slack, secure the power line with the cable clamp.
WARNING! Make sure the front and side covers, along with their O-ring seals, are installed on the
transmitter, and the set screws tightened before applying power in a hazardous environment.
7. Once the line power has been connected to the flow transmitter, replace the side cover, tighten the set screw using a
2.5 mm hex wrench, and proceed to the next section.

L1 L2/N G

Figure 13: Wiring the AC Line Power

Figure 14: Wiring the DC Line Power

Sentinel LNG User’s Manual 23

Chapter 2. Installation

2.4.4 Wiring the Serial Port

The flow transmitter is equipped with a built-in serial communications port. The port is user-selectable to be either an
RS232 or RS485 port. For more information on serial communications refer to the EIA-RS Serial Communications
Manual (916-054). It is recommended to use 12-24 AWG (3.3 - 0.2 mm2) twisted pair wiring for single conductors, and
a minimum 18 AWG (1.5 mm2) for two conductors per terminal.

2.4.4a Wiring the Serial Interface

To wire the serial port, refer to Figure 27 on page 34 and Figure 28 on page 35 and complete the following steps:

1. Disconnect the main power to the meter and remove the wiring access cover.
2. Install the required cable gland in the chosen conduit hole of the electronics enclosure.
3. Feed one end of the cable through the cable gland, wire it to terminal block TB2, and secure.

TB2 Network Interface

T (RS485–) TD (–)
R (RS485+) RD (+)
COM SGND (COM)

Figure 15: Serial Connections

!ATTENTION EUROPEAN CUSTOMERS!

To meet CE Mark requirements, all cables must be installed as described in Appendix B,
CE Mark Compliance.

4. If the wiring of the unit has been completed, reinstall the side cover and tighten the set screw.

2.4.5 Wiring the Modbus Communications Line (Optional)

The Sentinel LNG uses the RS485 interface with Modbus communications protocol for a maximum line distance up to
4,000 ft (1,200 m). The factory recommends using shielded 18-24 AWG (0.82 - 0.2 mm2) cable having a characteristic
impedance of 120 ohms, with 120-ohm termination at each end of the communications line. This interface is also
user-configurable as an RS232 interface.

Connect the two leads and the shield of the Modbus line to the NET section of terminal block TB2 in the flowmeter.
See Figure 10 on page 20 or Figure 28 on page 35.

24 Sentinel LNG User’s Manual

 Chapter 2. Installation

2.4.6 Wiring the Alarm Relay

Note: The alarm relay can be wired as either Normally Open (NO) or Normally Closed (NC).

An alarm relay should be wired for fail-safe operation. In fail-safe mode, the alarm relay is constantly energized, except
when it is triggered, or a power failure or other interruption occurs. See Figure 16 below for the operation of a normally
open alarm relay in fail-safe mode.

Connect the alarm relay in accordance with the wiring instructions (see Figure 10 on page 20 and Figure 27 on
page 34). For a wiring diagram see Figure 28 on page 35.

Fail-Safe
(not triggered)

NO
C

NC

ALARM
MONITORING
DEVICE

Fail-Safe
(triggered or power failure)

NO
C

NC

ALARM
MONITORING
DEVICE

Figure 16: Fail-Safe Operation

It is recommended to use 12-24 AWG (3.3 - 0.2 mm2) for single conductor wiring, and 16-24 AWG (1.5 - 0.2 mm2) for
two conductors per terminal.

Sentinel LNG User’s Manual 25

Chapter 2. Installation

2.4.7 Wiring the 4-20mA Analog Inputs (Optional)

1. Disconnect the main power to the flowmeter and remove the enclosure side cover.
2. Install a cable gland in the chosen conduit hole on the top of the electronics enclosure and feed a standard
twisted-pair cable through this conduit hole.
3. Locate the 26-pin terminal block (TB2) in Figure 27 on page 34, and wire the I/O terminal as indicated on the label
inside the wiring access cover (see Figure 10 on page 20, Figure 27 on page 34 or Figure 28 on page 35.
4. Secure the cable clamp.

!ATTENTION EUROPEAN CUSTOMERS!

To meet CE Mark requirements, all cables must be installed as described in Appendix B,
CE Mark Compliance.

5. If wiring of the unit has been completed, reinstall the side cover on the enclosure and tighten the set screw.

The analog input option provides either three isolated 4-20mA analog inputs, or two isolated 4-20mA analog inputs
and one RTD input (designated Ain1, Ain2, Ain3 and RTD1). Each of the 4-20 inputs includes a 24 VDC power supply
for loop-powered transmitters. The inputs may be used to process temperature, density and pressure signals.

Note: To enter programming data during operation of the Sentinel LNG, it will be necessary to know which input is
assigned to which process parameter. This information should be entered in Appendix C, Data Records.

The analog inputs, which have an impedance of 118 ohms, should be connected with standard twisted-pair wiring.
Power to the transmitter may be supplied either by the internal 24 VDC power supply on the analog input terminal or
by an external power supply. Figure 17 on page 27 shows typical wiring diagrams, with and without an external power
supply, for one of the analog inputs. Figure 18 on page 27 shows 4-wire RTD input wiring. Wire the analog inputs as
shown on the label in the enclosure side cover (see Figure 10 on page 20 and Figure 26 on page 33). Terminal locations
are shown in Figure 19 on page 28 through Figure 22 on page 29.

It is recommended to use 12-24 AWG (3.3 - 0.2 mm2) for single conductor wiring, and 16-24 AWG (1.5 - 0.2 mm2) for
two conductors per terminal.

26 Sentinel LNG User’s Manual

 Chapter 2. Installation

2.4.7 Wiring the 4-20mA Analog Inputs (cont.)

With External Power Supply

24 VDC
POWER SUPPLY
– +

Analog Input Transmitter

Ain RTN + IN Sensor

Ain – OUT
+24V

With Internal Power Supply

Analog Input Transmitter

Ain RTN – OUT Sensor

Ain
+ IN
+24V

Figure 17: Analog Input Wiring Diagram

TB2/RTD1

CUR
+S
RTD
–S
RTN

Figure 18: 4-Wire RTD Input Wiring Diagram

Sentinel LNG User’s Manual 27

Chapter 2. Installation

2.4.7 Wiring the 0/4-20 mA Analog Inputs (cont.)

AIN3 AIN2 AIN1 AIN3 AIN2 AIN1 AIN3 AIN2 AIN1

RTN3
RTN3
RTN2
RTN2
RTN1
RTN1

RTN3
RTN3
RTN2
RTN2
RTN1
RTN1

RTN3
RTN3
RTN2
RTN2
RTN1
RTN1
AIN3
+24V3
AIN2
+24V2
AIN1
+24V1

AIN3
+24V3
AIN2
+24V2
AIN1
+24V1

AIN3
+24V3
AIN2
+24V2
AIN1
+24V1
Analog Input 1 Analog Input 2 Analog Input 3

Figure 19: Terminal Locations for 3 Analog Input Option

Powered – + Sentinel provides +24VDC – +

Transmitter for the Transmitter

AIN3 AIN2 AIN1 AIN3 AIN2 AIN1

RTN3
RTN3
RTN2
RTN2
RTN1*
RTN1*

RTN3
RTN3
RTN2
RTN2
RTN1
RTN1

*You can wire to

either RTN1 TB
connection.
AIN3
+24V3
AIN2
+24V2
AIN1
+24V1

AIN3
+24V3
AIN2
+24V2
AIN1
+24V1

Figure 20: Terminal Locations for Analog Transmitter Use Cases

28 Sentinel LNG User’s Manual

 Chapter 2. Installation

RTD1 AIN2 AIN1 RTD1 AIN2 AIN1 RTD1 AIN2 AIN1

RTN2
RTN2
RTN1
RTN1

RTN2
RTN2
RTN1
RTN1

RTN2
RTN2
RTN1
RTN1
RTN

RTN

RTN
S–

S–

S–
S+
CUR
AIN2
+24V2
AIN1
+24V1

S+
CUR
AIN2
+24V2
AIN1
+24V1

AIN2
+24V2
AIN1
+24V1
S+
CUR
Analog Input 1 Analog Input 2 RTD Input 3

Figure 21: Terminal Locations for 2 Analog Input and 1 RTD Input Option

4-Wire RTD 3-Wire RTD

CURRENT SENSE RETURN CURRENT SENSE RETURN

Add
SENSE RTN SENSE Jumper
AIN2 AIN1 AIN2 AIN1
RTN2
RTN2
RTN1*
RTN1*

RTN2
RTN2
RTN1
RTN1
RTN

RTN
S–

S–

*You can wire to

either RTN1 TB
connection.
S+
CUR
AIN2
+24V2
AIN1
+24V1

S+
CUR
AIN2
+24V2
AIN1
+24V1

Figure 22: Terminal Locations for 4-Wire and 3-Wire RTD Use Cases

Sentinel LNG User’s Manual 29

Chapter 2. Installation

2.4.8 Wiring the Frequency Output

Figure 23 below shows sample wiring diagrams of the frequency/totalizer output circuit for open drain and push-pull
configurations. It is recommended to use 12-24 AWG (3.3 - 0.2 mm2) for single conductor wiring, and 16-24 AWG
(1.5 - 0.2 mm2) for two conductors per terminal.

Frequency/Totalizer Output
(Open Drain)
Sentinel LCT Counter

Volts +
(Int. Pwr. Sup.)
OUT
Load
RTN

Volts -
(Common)

Frequency/Totalizer Output
Sentinel LCT (Push-Pull) Counter

+5V

270 

OUT IN
RTN Common

Figure 23: Totalizer and Frequency Output Wiring

Table 7: Wiring the TB2 I/O Terminal Block

I/O Pin # Function
F/T1+ Freq 1/Totalizer 1 OUT
F/T1– Freq 1/Totalizer 1 RTN
F/T2+ Freq 2/Totalizer 2 OUT
F/T2– Freq 2/Totalizer 2 RTN
NET R (+) MODBUS–RTU RS232 (R)/RS485 (+)
NET T (–) MODBUS–RTU RS232 (T)/RS485 (–)
NET COM MODBUS–RTU Common

30 Sentinel LNG User’s Manual

 Chapter 2. Installation

2.4.9 Wiring the 4-20 mA Analog Output

The standard configuration of the flow transmitter includes an isolated 4-20 mA analog output. Connections to this
output may be made with standard 12-24 AWG (3.3 - 0.2 mm2) twisted-pair wiring for single conductor, and
16-24 AWG (1.5 - 0.2 mm2) for two conductors, but the current loop impedance for these circuits must not exceed
1000 ohms. To wire the analog outputs, complete the following steps:

1. Disconnect the main power to the flowmeter and remove the enclosure side cover.
2. Install the required cable clamp in the chosen conduit hole on the side of the electronics enclosure.
3. Locate the 26-pin terminal block (TB2) shown in Figure 28 on page 35, and wire the I/O terminal as indicated on
the label inside the wiring access cover (see Figure 10 on page 20 and Figure 28 on page 35). For a wiring diagram
see Figure 24 or Figure 25 below.

4/20 Aout + Flowmeter

Monitor Terminal
Load Board
Aout – Connector

+ –
24 Volt DC
Power
Supply

Figure 24: Analog Output Passive Wiring

4/20 Aout + Flowmeter

Monitor Terminal
Load Board
Aout – Connector

Figure 25: Analog Output Active Wiring

Sentinel LNG User’s Manual 31

Chapter 2. Installation

2.4.9 Wiring the 4-20 mA Analog Output (cont.)

4. Secure the cable clamp.

!ATTENTION EUROPEAN CUSTOMERS!

To meet CE Mark requirements, all cables must be installed as described in Appendix B,
CE Mark Compliance.

5. If wiring of the unit has been completed, reinstall the wiring access cover on the enclosure and tighten the set
screw.

After the Sentinel LNG has been completely installed and wired, proceed to Chapter 3, Operation, to program the
flowmeter.

WARNING! Make sure both covers, with their o-ring seals, are installed, and the set screws tightened,
before applying power in a hazardous environment.

32 Sentinel LNG User’s Manual

 Installation

Figure 26: Sentinel LNG Enclosure - Front Display and Wiring Access
Front Display Wiring Access Cover

Sentinel LNG User’s Manual 33

 Installation

Figure 27: Sentinel LNG Enclosure - Terminal Block Layout

COM
NO
NC

+
–
ALM2
J2
TB3 TB1
ALM1 RJ45
Ain3 Ain2 Ain1
USB

J1

I/O
TB2

F/T1–
F/T1+
Aout–
Aout+
Com
Rx
Tx
in/R2

in/R2

in/R2
Sentinel LNG User’s Manual 34
 Installation

(3) 3/4" NPT CABLE GLANDS PORTS

(CABLE ENTRY ON OPPOSITE SIDE OF ENCLOSURE)

MODBUS / TCP CONNECTOR (NON-IS ONLY)

(2) CABLE TIE DOWN POINTS
GROUNDING SCREWS FOR 2-WIRE
SHIELD CABLES (RECOMMENDED)
8-32 SCREW

MODBUS NETWORK RS232/485 POWER CORD TERMINAL

T/- MODBUS (TRANSMIT / DATA -) DC OPTION:
R/+ MODBUS (RECEIVE / DATA +) AC OPTION:
COM MODBUS COMMON L1 LINE 1 + (+)
(±15VDC, 200mA) L2/N LINE 2/NEUTRAL - (-)
SEE NOTES 1 & 3 G GROUND GROUND
(264VAC, 0.82A) (30VDC, 2A)
SEE NOTES 2 & 3 SEE NOTES 2 & 3

Figure 28: SEN898 Electronics - Wiring Diagram (ref. dwg #702-884)

DIGITAL INPUT
Din+ TOTALIZER GATE SIGNAL
Din RTN TOTALIZER GATE RETURN
(5VDC, 100mA)
SEE NOTES 1 & 3

COM
NO
+

NC

–
USB CONNECTOR (NON-IS ONLY)
(SERVICE USE ONLY)
ALM2
TB3 J2
TB1
ALM1
NET AIN3 AIN2 AIN1
USB

F/T2+
F/T2–

RTN3
RTN3
RTN2
RTN2
RTN1
RTN1
R (+)
Com
T (–)
Din+
J1 NOTES:
1. I/O CONNECTIONS WIRE GAUGE RANGE 12-24 AWG (3.3 - 0.2 mm 2).
2. AC AND DC CONNECTIONS WIRE GAUGE RANGE 12-18 AWG (3.5 - .82 mm 2).
I/O
ALARM CONNECTORS 3. MAXIMUM TERMINAL RATINGS [VOLTAGE, CURRENT].
TB2
ALM1:
F/T1–
F/T1+
Aout–
Aout+
Com
R (+)
T (-)
AIN3

AIN2

AIN1
NO NORMALLY OPENED
NC NORMALLY CLOSED
COM COMMON
ALM2:
NO NORMALLY OPENED
NC NORMALLY CLOSED
COM COMMON
AC (120VAC, 5A)
DC (28VDC, 5A) (3) ANALOG INPUTS OPTION (AAA) (2) ANALOG INPUTS & RTD INPUT OPTION (AAR)
SEE NOTES 1 & 3
ANALOG INPUT 1 ANALOG INPUT 1
AIN1 ANALOG IN AIN1 ANALOG IN
+24V1 24VDC +24V1 24VDC
RTN1 24VDC RETURN RTN1 24VDC RETURN
RTN1 ANALOG RETURN RTN1 ANALOG RETURN

FREQUENCY/TOTALIZER OUTPUT ANALOG INPUT 2 ANALOG INPUT 2

F/T1+ OUTPUT1 SIGNAL AIN2 ANALOG IN AIN2 ANALOG IN
F/T1- OUTPUT1 RETURN +24V2 24VDC +24V2 24VDC
F/T2+ OUTPUT2 SIGNAL RTN2 24VDC RETURN RTN2 24VDC RETURN
F/T2- OUTPUT2 RETURN RTN2 ANALOG RETURN RTN2 ANALOG RETURN
(100VDC, 1A) CUSTOMER ANALOG INPUT 3 RTD INPUT 1
SEE NOTES 1 & 3) GROUND
AIN3 ANALOG IN S+ SENSE +
ANALOG OUTPUT PANALINK RS232/485 +24V3 24VDC CUR CURRENT OUT
RTN3 24VDC RETURN S- SENSE -
AOUT+ 4-20mA POS TERMINAL T/- TRANSMIT / DATA- RTN3 ANALOG RETURN RTN CURRENT RETURN
AOUT- 4-20mA NEG TERMINAL R/+ RECEIVE / DATA+
COM COMMON SEE NOTES 1 & 3 SEE NOTES 1 & 3
POWERED OR UNPOWERED
SOFTWARE SELECTABLE SEE NOTES 1 & 3
SEE NOTES 1 & 3

Sentinel LNG User’s Manual 35

 Installation

FLOWCELL (REAR VIEW)

XDCR
UP4
XDCR
CABLE, SINGLE DN3
XDCR

Figure 29: Sentinel LNG to SEN898 Electronics - Interconnection Diagram (ref. dwg #702-887)
UP2 CABLE, SINGLE
XDCR
DN1

JUNCTION BOX JUNCTION BOX

FLOW

CABLES
CABLE, DUAL CABLE, DUAL

SEN898 ELECTRONICS
TOP VIEW
PORT B PORT C

UP1 UP2 UP3 UP4

FLOW PCB

DN1 DN2 DN3 DN4

PORT A PORT D

CABLE, DUAL CABLE, DUAL

CABLES

FLOW

JUNCTION BOX JUNCTION BOX

XDCR
UP1
XDCR
CABLE, SINGLE DN2
XDCR
UP3 CABLE, SINGLE
XDCR
DN4

FLOWCELL (FRONT VIEW)

Sentinel LNG User’s Manual 36

 Chapter 3. General Programming

Chapter 3. General Programming

3.1 Introduction
The Sentinel LNG flow transmitter includes a User Program that provides access to the various programmable features
of the instrument. This chapter describes step-by-step programming instructions using the internal keypad, shown in
Figure 30 below.

3.2 Keypad Features

Clear Totals Power Indicator

Main Display

Fault Indicator Total Lock Indicator

User Intervene
Keypad Lock
Indicator
Escape (Cancel)

Enter
Up, Left, Right,
and Down Arrows

Figure 30: Sentinel LNG Keypad

The Sentinel LNG has seven keys: a Clear Totals key, four arrow keys, an Escape  key, and an Enter  key.
• Use the Escape  key to open the main menu on the display. (If locked, see Unlocking and Locking on page 40.)
• Use the arrow keys to navigate among menu choices and to increment/decrement numeric entries.

• Use the Escape  key to cancel a numeric entry change, or exit a menu.
• Use the Enter  key to accept a numeric entry or select a menu option.

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Chapter 3. General Programming

3.2.1 Indicator Lights

If the Fault Indicator is lit, an instrument fault is detected. An error indication will be displayed in the lower
right-hand corner of the Measurement View.

If the User Intervene Indicator is lit, an alarm has been triggered and will be kept latched until cleared by the user.
See Wiring the Alarm Relay on page 25 and Inputs/Outputs on page 51 for more information.

The Keypad Lock Indicator will be lit if the Keypad Lock-Out Switch, internal to the instrument, has been engaged.

Note: If the Keypad Lock Indicator is lit, the keypad will not be functional.

The Total Lock Indicator will be lit if the Totals Lock-Out Switch, internal to the instrument, has been engaged.

Note: If the Total Lock Indicator is lit, totals are not able to be reset by the Clear Totals Key or through programming.

The Power Indicator is normally lit when the instrument is powered.

3.2.2 The Magnetic Stylus

Each of the keys can be selected using a hand-held magnet called a Magnetic Stylus, which is included with the meter.
By touching the clear window at a key location, that key will be selected and will flash a red light to verify the contact.

Figure 31: Magnetic Stylus

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 Chapter 3. General Programming

3.3 Program Menu Options

3.3.1 Channel Program
For the Channel Program setup, refer to the appropriate section for a discussion of the following PROG menu options,
beginning on page 43.

• Status - activate or deactivate the channels/paths.

• Fluid - enter Reynolds Correction data (not supported at this time).

• Signal - enter the zero cutoff parameter.

• Error Limits - enter minimum and maximum signal, velocity, amplitude and soundspeed.

3.3.2 Composite Program

For the composite program setup, refer to the appropriate section for a discussion of the following Composite menu
options, beginning on page 47.

• Fluid - enter fluid type in normal or Tracking Windows Mode.

• Signal - enter the number of errors allowed and the Compensation Status (additional option).

• Inputs - enter the temperature, pressure and density parameters.

• API Setup (additional option) - enter the table type and conditions.

3.3.3 Advanced Program

Note: The Advanced Program is accessible only to persons with Field Service, Factory or Engineering status.
For the advanced program setup, refer to Chapter 4, Advanced Programming.

• Transducer - enter data for preprogrammed or special clamp-on transducers

• K Factor - enter the Meter Correction (K) Factor as a single value or as a table of values

• Pipe - enter pipe parameters

• Weight Factors - enter the appropriate weight parameter.

To measure flow rate with the Sentinel LNG, activate the channel/path(s) and enter the transducer, pipe and fluid
parameters. Appendix A includes a complete set of menu maps for the User Program, including Figure 231 on
page 216 for the PROG menu.

Note: This manual describes the programming of Channel 1, only. To program Channels 2 through 4, simply repeat
the same procedures presented for Channel 1.

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Chapter 3. General Programming

3.4 Unlocking and Locking

To prevent unauthorized tampering with either the display or the user program, the Sentinel LNG has multiple security
codes. Once the security level has been set, one of these codes is required to change just the display (Display Lock), or
the display and the user program (Full Lock).

Note: To speed up the key response of the Sentinel LNG, deactivate CH1-CH4, as described on page 43. Remember
to reactivate the channels when programming is complete.

3.4.1 Unlocking the Sentinel LNG

To unlock the display and/or the user program:

1. Press [ESC], [ENT], [ESC]. A Security Check window, similar to Figure 32 below, appears.

Figure 32: Security Check Window

2. Using the arrow keys, change the code number to the value desired for your security level. The security passcodes
can be configured under USER  EDIT PASSCODES when the user is logged in as User Admin.
Table 8: Default Passcodes
SECURITY LEVEL PASSCODE
Full Lock 0000
Display Locked 2719
User 1 0001
User 2 0002
User 3 0003
User 4 0004
User Admin 0005
Field Service ----
Factory ----
Engineering/Unlock ----

3. Press [ENT]. The display screen reappears, with the lock removed, partially unlocked, or lettered to represent the
level. Security will remain at this level until you change the level in the user program, as described on the next
page, or if it times out and returns to full lock.

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 Chapter 3. General Programming

3.4.2 Locking the Sentinel LNG

The security level can be accessed in two ways.

From the display screen:

1. Press the [] key three times, until the lock in the upper right corner is highlighted.
2. Press [ENT], and proceed to step 4 below.

From the User Program:

1. Press [ESC]. The Sentinel LNG enters the User Program.

2. Press the [] key until USER is bracketed.
3. Press the [] key until Set Security is highlighted. Press [ENT].
4. The screen shows up to ten options (depending on the current security level):
• Full Lock – This will be the default level during meter power-up. Any User who wishes to access the menu will
have to press the keys in the following combination (Escape-Enter-Escape) to unlock the meter with a “Valid
Passcode”. The entered “Passcode” is validated and the user is allowed to access the menu based on privileges.
The meter will go back to Full-Lock mode if no keypad activity is noted for a “Determined Time”.
• Display Locked – This level can be achieved by entering a “Valid Passcode” assigned for this role. In this
Mode/Level, the User has privilege only to view data. The User will be allowed to select the diaplay parameters.
Any other changeable parameter is denied access.
• User-1 / User-2 / User-3 / User-4 – The User has to enter a “Valid Passcode” to have access to the menu attached
to this role. The User with this role will have rights of Display Locked mode and some predetermined “write
privilege” with which he may modify parameters (attached to this role).
• User Admin – This User will have “Administrator privilege” in addition to privileges of Lower level. This user is
given the rights to change the “Passcode” for all user-levels. (This does not include Full Lock and Display
Locked). The Administrator has the privilege to modify the timeout value, which is used to determine the time
taken to switch back to Full Lock mode (if no keypad activity is noted). The “Administrator privilege” does not
include access to Service or Factory Menu. The Administrator has no rights or control on
Service/Factory/Engineering Levels or their “Passcodes”.
• Field Service – This User has access to the “Service Menu” in addition to “Administrator privilege”. It is not
accessible by User Admin.
• Factory – This User has access to “Factory privilege” in addition to “Service privileges”. It is not accessible by
User Admin.
• Engineering – This User is the only user with Full access to the meter. Only this user has rights to change the
“Passcodes” for Factory and Service. It is not accessible by User Admin.

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Chapter 3. General Programming

3.4.2 Locking the Sentinel LNG (cont.)

Scroll to the desired option and press [ENT] twice.

5. Press [ESC] to return to the User Program, or continue pressing [ESC] to return to the display screen. If you have
chosen to fully lock the Sentinel LNG, the screen appears similar to Figure 33 below, with a solid lock in the upper
right corner. (For a meter with only the user program locked, the lock shows a keyhole in the center.)

Figure 33: Screen with Locked Program

3.5 Setting Security

3.5.1 Edit Passcodes
This User option is made available only to Security Levels of User-Admin, Field Service, Factory and Engineering
(see Table 8 on page 40 and the Security Level descriptions on page 41). On selection, the Passcodes for User-1 to
User-4 and User-Admin can be modified. The Passcodes for Field Service, Factory, Engineering, Full-Lock and
Program-Lock cannot be customized.

3.5.2 Security Timeout

This User option is made available only to Security Levels of User-Admin, Field Service, Factory and Engineering
(see Table 8 on page 40 and the Security Level descriptions on page 41). This option enables the Admin, Field Serivce,
Factory and Engineering users to set a timeout period, after which the meter will switch back to Full-Lock mode, if no
keypad activity is noted. The Timeout ranges from 1 minute to 60 minutes. The Security Timeout period set is
applicable only for User-1 to User-Admin. For other Security Levels, the Timeout period is invalid.

3.5.3 Set Security

The User is allowed to set a security level below the current level.

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 Chapter 3. General Programming

3.6 Channel Programming

3.6.1 Activating a Channel/Path/CHX (Status)
Use the Status submenu of the PROG menu, to activate or deactivate a channel/path. The channel/path should be
activated when the unit is received, however, it should be verified that the channel/path is active before data is
acquired. While following the programming instructions, refer to Figure 231 on page 216. Remember to record all
programmed data in Appendix C, Data Records.

To access the Status submenu:

1. Press [ESC]. The Sentinel LNG enters the User Program.

2. Press the [] key until PROG is bracketed in the top left corner and press [ENT].
3. Use the [] and [] keys to scroll to the desired channel and press [ENT]. The screen appears similar to Figure 34
below.

Figure 34: The PROG Menu

4. Press [ENT] to open the Status submenu.

Figure 35: The Status Menu

5. The screen offers two options, ON and OFF. Use the [] and [] keys to scroll to the desired selection and press
[ENT].
Note: On any menu, if you scroll to a different option, press [ENT] twice to select it (once to enter and again to
confirm).

6. Press [ESC] (or [ENT] twice if you have selected the other option) to return to the channel menu.
After the above steps are completed, the user program returns to the PROG menu. Do one of the following:

• To program in other menus, refer to Appendix A, Menu Maps, to navigate to the desired menu.

• To leave the User Program, press [ESC] three times.

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Chapter 3. General Programming

3.6.2 Entering Fluid Data (Not supported at this time)

The Fluid submenu enables selection of the Reynolds Correction factor. While following the programming instructions,
see Figure 231 on page 216. Remember to record all programmed data in Appendix C, Data Records.
Note: From the PROG menu, proceed directly to Step 4. To select a different option, scroll to that option and press
[ENT] twice to select it (once to enter and again to confirm the selection).

To access the Fluid submenu:

1. Press [ESC]. The Sentinel LNG enters the User Program.
2. Press the [] key until PROG is bracketed in the top left corner and press [ENT].
3. Use the [] and [] keys to scroll to the desired Channel and press [ENT].
4. Scroll to the Fluid submenu and press [ENT]. The word Reynolds appears.

3.6.2a Reynolds Correction Data

Reynolds Correction is a correction factor based on the Kinematic Viscosity and flow rate of the fluid. It is necessary,
as the velocity of the fluid measured along a diametrical path must be related to the total area average velocity over the
entire pipe cross-section. This factor should be ON in most applications, including all those that use clamp-on
transducers. To access Reynolds Correction data:

1. From the Fluid window, select Reynolds and press [ENT]. The screen shows three options: Off, Single and Table.
2. Scroll to the desired option, and press [ENT]. The menu varies, depending on the selection in Step 1.
• If Off is chosen, no further choices are available.

• If Single is chosen, the Sentinel LNG will select and automatically display the Kinematic Viscosity. To change the
value, press [ENT]. Use the arrow keys to change the value (available in document #914-004, Soundspeeds and Pipe
Size Data), and press [ENT].
• If Table is selected, the screen displays four options: Units, Rows Used, Edit Table and Reset Table.
a. Select Units and press [ENT] and the screen displays two more options: Soundspeed and Diagnostic. Select
Soundspeed and press [ENT] and the screen displays Meters/sec. Press [ESC] or [ENT] to return to the previous
screen. Select Diagnostic and press [ENT] and the meter requests the type of signal to be used, Signal Up or
Signal Dn. Scroll to the appropriate signal, and press [ENT].
b. From the Unit Menu, select Rows Used and press [ENT]. Use the arrow keys to enter the desired number (from 2
to 20) and press [ENT].
c. Select Edit Table and press [ENT], and the table opens with a series of rows. Scroll to the desired row, and press
[ENT].
d. For each row, the screen displays the Reynolds Correction number (X) and the Kinematic Viscosity (KV). If you
wish to change either value, scroll to the value and press [ENT]. Use the arrow keys to change the value (available
in Soundspeeds and Pipe Size Data, document #914-004), and press [ENT].
e. Repeat steps c and d until all available data (from 2 to 20 rows) has been programmed.
f. Press [ESC] to return to the PROG menu, or continue pressing [ESC] until the display screen reappears.
g. To confirm changes to the table, from the Unit Menu, select Reset Table... and press Enter. To reset the table
select Yes and press Enter. To not reset the table, select No and press Enter.

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 Chapter 3. General Programming

3.6.3 Entering Signal Parameters

In the Signal submenu, set parameters that affect the transducer signal:

CAUTION! The SIGNAL default settings are suitable for most applications. Consult the factory before
changing any of these settings.
Note: Under Channel Programming, the only signal parameter that can be changed is Zero Cutoff.

While following the programming instructions, refer to Figure 231 on page 216.

Note: From the PROG menu, proceed directly to Step 4. To select a different option, scroll to that option and press
[ENT] twice to select it (once to enter and again to confirm the selection).

To enter the Signal submenu:

1. Press [ESC]. The Sentinel LNG enters the User Program.

2. Press the [] key until PROG is bracketed and press [ENT].
3. Use the [] and [] keys to scroll to the desired Channel and press [ENT].
4. Scroll to the Signal option and press [ENT].
5. The prompt requests the Zero Cutoff. Near “zero” flow, the Sentinel LNG may have fluctuating readings due to
small offsets (caused by factors such as thermal drift in the fluid). The zero cutoff causes velocity measurements
less than the cutoff to be reported as zero. To set the cutoff, press [ENT], and use the arrow keys to enter the new
value. Press [ENT] to confirm the entry.

Entering parameters in the Signal option has been completed. Press [ESC] to return to the PROG menu, or continue
pressing [ESC] until the display screen reappears.

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Chapter 3. General Programming

3.6.4 Entering Error Limits

The Error Limits option enables setting limits for an incoming signal. When the signal falls outside the programmed
limits, an error indication appears on the display screen. To set error limits, follow the steps below.

Note: From the PROG menu, proceed directly to Step 4. To select a different option, scroll to that option and press
[ENT] twice to select it (once to enter and again to confirm the selection).

1. Press [ESC]. The Sentinel LNG enters the User Program.

2. Press the [] key until PROG is bracketed in the upper left corner and press [ENT].
3. Use the [] and [] keys to scroll to the desired Channel and press [ENT].
4. Scroll to the Error Limits option and press [ENT].
5. The first prompt requests the Min Signal limit for the transducer signal received by the Sentinel LNG. The E1:LOW
SIGNAL error message appears if the signal strength falls below the limit programmed here. Press [ENT]. Use the
arrow keys to change the value and press [ENT].
6. Repeat the steps above for the Max Signal limit.
7. The next prompt calls for the Min Velocity limit. Press [ENT]. Use the arrow keys to change the value and press
[ENT].
8. Repeat the steps above to change the Max Velocity limit. (The E3:VELOCITY RANGE error message appears if
the velocity falls outside the minimum and maximum limits.)
9. The meter now requests the Min Amplitude, the lower limit for the amplitude discriminator. The discriminator
measures the size of the transducer signal sent from the Sentinel LNG. If the signal falls outside these limits, the
E5:AMPLITUDE error message appears. Press [ENT]. Use the arrow keys to change the value and press [ENT].
10. Repeat these steps for the Max Amplitude, the upper limit for the discriminator.
11. The next prompt calls for the acceptable Soundspeed limits, based on conditions in the particular system. The
E2:SOUNDSPEED error message appears if the fluid soundspeed exceeds that entered in the Fluid submenu by
more than this percentage. Press [ENT]. Use the arrow keys to change the percentage and press [ENT].
12. The final prompt requests the Acceleration limit for detecting cycle skipping. The E6:ACCELERATION error
message appears if the velocity changes by more than this limit from one reading to the next. Press [ENT]. Use the
arrow keys to change the value and press [ENT].

You have finished entering data in the PROG menu. Do one of the following:

• To program in other menus, refer to Appendix A, Menu Maps, to navigate to the desired menu.

• To return to the display screen, press [ESC] until the display screen reappears.

• To configure the display, proceed to the next chapter.

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 Chapter 3. General Programming

3.7 Composite Programming

Under the PROG menu, select Composite... and press [ENT].

3.7.1 Entering Fluid Type

1. Scroll to Fluid Type and press [ENT]. Two other options appear, Normal and Tracking. Tracking refers to Tracking
Windows, which are used to detect the receive signal when you are unsure of the fluid soundspeed, or when the
fluid soundspeed changes drastically under process conditions.
2. Scroll to the desired option and press [ENT].
3. Make a selection between Preprogrammed and Other fluids. Scroll to the desired option, and press [ENT].
• For Normal fluids, the expected fluid Temperature can be programmed. Scroll to the Temperature option and
press [ENT]. Then use the arrow keys to enter the process temperature, and press [ENT].
• For fluids monitored with a Tracking Window, the meter enables the selection of Water (up to 100° or 260°C) or
Oil. Scroll to the desired listing and press [ENT].
4. The menu now varies, depending on the selections in steps 6 and 7.
• If Preprogrammed Fluids has been selected, the Sentinel LNG supplies a list of preprogrammed fluids. As shown
in Table 9 below, the list varies, depending on whether you have selected normal or tracking window fluid types. In
either case, scroll to the desired fluid and press [ENT].
• If Other was selected, the Sentinel LNG requests the fluid soundspeed (for Normal fluids) or minimum and
maximum soundspeed (for Tracking Window fluids). In either case, scroll to the Soundspeed option and press
[ENT]. Use the arrow keys to enter the appropriate soundspeed, and press [ENT].

Table 9: Preprogrammed Fluid Types

Tracking Windows Off Tracking Windows On
Water (0-260°C) Lube Oil (X200) Freon (R-12) Water (0-100°C)
Sea Water Methanol (20°C) Diesel Water (0-260°C)
Oil (22°C) Ethanol Gasoline Oil
Crude Oil LN2 (-199°C)

5. Press the [ESC] key to return to the Fluid Type window.

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Chapter 3. General Programming

3.7.2 Entering Signal Parameters

In the Signal submenu, set parameters that affect the transducer signal:

CAUTION! The SIGNAL default settings are suitable for most applications. Consult the factory before
changing either of these settings.
• Error Allowed

• Compensation Status (additional option)

While following the programming instructions, refer to Figure 231 on page 216.

Note: From the COMPOSITE menu, proceed directly to Step 4. To select a different option, scroll to that option and
press [ENT] twice to select it (once to enter and again to confirm the selection).

To enter the Signal submenu:

1. Press [ESC]. The Sentinel LNG enters the User Program.

2. Press the [] key until PROG is bracketed and press [ENT].
3. Use the [] and [] keys to scroll to Composite and press [ENT].
4. Scroll to the Signal option and press [ENT].
5. Select Error Allowed, press [ENT], use the arrow keys to enter the new value, and press [ENT] to confirm the entry.
6. If Dimensional Compensation is an included option, at the next parameter, Compensation Status, the screen
shows the two options, On or Off. Scroll to the desired option, and press [ENT].
Entering parameters in the Signal option has been completed. Press [ESC] to return to the PROG menu, or continue
pressing [ESC] until the display screen reappears.

3.7.3 Setting Up Input Data Feeds

In the Inputs submenu, set the status for three types of inputs:
• Temperature

• Pressure

• Density

1. From the COMPOSITE menu, select Inputs, and press [ENT]. The next screen lists three types of inputs:
Temperature, Pressure, and Density.
2. Select the input to be changed and press [ENT]. The input status is described by two options: Fixed or Active.
3. To experience a stationary input, select Fixed, and press [ENT]. Press [ENT] again to reveal the Fixed input value.
4. To set a different value, use the arrow keys to change the digits, and press [ENT].
5. To experience an active input, select Active, and press [ENT]. Press [ESC] to return to the previous menu.

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3.7.4 Setting Up API

In the API Setup submenu, set the table types and conditions for several API options:

1. If the API option is included, from the COMPOSITE menu, select API Setup, and press [ENT]. The next screen
displays API Table Type and API Conditions.
3.7.4a API Table Type
1. Select API Table Type and press [ENT]. The next screen displays four table types: Table A-Crude or JP, Table B-Gen
Product, Table C-User Def TE, and Table D-Lubricants.
2. For Tables A, B and D, select a specific table, press [ENT], and the screen returns to the API Setup menu.
3. Select Table C, press [ENT], and the Thermal Exp Coeff screen appears. To change the coefficient, press [ENT]. On
the next screen, use the arrow keys to change the digits, and press [ENT] to save the change, or [ESC] to reject the
change. The screen returns to the previous display. Press [ESC] twice to return to the API Setup display.

3.7.4b API Conditions

1. Select API Conditions. Press [ENT]. The next screen displays two options: Base Condition and Flow Measure At...
2. Select Base Condition and press [ENT]. The next screen displays four options: 60°, 20°, 15° and User Defined...
Select a given temperature or define a new one.
3. To establish a new base temperature, select User Defined, press [ENT], and the User Def Base Temp screen
appears. Press [ENT], and the User Defined temperature is able to be changed.
4. Using the arrow keys, change the appropriate digits, and press [ENT]. Press [ESC] twice and return to the APIcond
screen.
5. Select Flow Measure At... and press [ENT]. A screen appears listing two options: Observed and Alternate...
6. To measure at Observed, select Observed and press [ENT]. Two settings appear: Temp(alt) and Pres(alt).
7. To change either alternate condition, select the option, and press [ENT].
8. Using the arrow keys, change the appropriate digits, and press [ENT].
9. Change the other alternate condition if needed, and press [ESC] to return to the Flow Measurement At... screen.
10. To measure at Alternate, select Alternate and press [ENT]. Three settings appear: Temp(obs), Pres(obs), and
Dens(obs).
11. To change an observed condition, select the option, and press [ENT].
12. Using the arrow keys, change the appropriate digits, and press [ENT].
13. Change the other observed conditions if needed, and press [ESC] four times to return to the PROG menu.

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Chapter 3. General Programming

3.8 Configuration
1. From the main menu, use the right arrow key to scroll to CONFIG. The screen displays five options: Units,
Communication, Reset Totals, Totalizer Errors and Date/Time. Use the arrow keys to select an option to be
configured.
2. To choose a measurement type, select Units, and press [ENT]. The screen displays Metric and English. Select one,
press [ENT] and the screen returns to the CONFIG menu.
3. To choose a communication type, select Communication and press [ENT]. The screen displays three options:
Panalink, Modbus (if option is included) and HART.
4. Select the desired communication software, press [ENT], and set up the components by making the appropriate
selections from each list of options.
5. To reset the totals, from the CONFIG menu, select Reset Totals and press [ENT].
Note: If the totalizer lock is enabled, the previous totals will not be cleared.

a. Select a Channel, the Composite setup, or All, and press [ENT].

b. From the next menu, select whether to reset the forward total, the reverse total, or both, and press [ENT].
c. Press [ESC] to return to the CONFIG menu.
6. To set up error handling, from the CONFIG menu, select Totalizer Errors, and press [ENT].
a. Select a Channel or the Composite setup and press [ENT].
b. Answer the question, Totalize on Error?, by selecting Yes or No. Then press [ENT].
c. Repeat the process for other channels, if necessary, and press [ESC] to return to the CONFIG menu.
7. To reset the date and/or time, from the CONFIG menu, select Date/Time, and press [ENT].
a. Press [ENT] again to edit the text.
b. Use the arrow keys to select and change numbers in the date/time format.
c. Press [ENT] to accept the change.

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3.9 Inputs/Outputs
From the main menu, use the arrow keys to scroll to IO. The screen displays five options. Use the arrow keys to select
an option to be configured.

• Analog Outputs
• Freq/Totals
• Alarms
• Slot 1
• Slot 2
While following the programming instructions, refer to Figure 234 on page 219 or Figure 235 on page 220.

Note: From the IO menu, proceed directly to Step 3. To select a different option, scroll to that option and press [ENT]
twice to select it (once to enter and again to confirm the selection).

To enter the IO Menu:

1. Press [ESC]. The Sentinel LNG enters the User Program.

2. Press the [>] key until IO is bracketed and press [ENT].
3. Use the [^] and [V] keys to scroll to wanted IO option

3.9.1 Analog Outputs

1. Select Analog Output to bring you to the menu.
2. Select Status. Select Off to disable output or On to enable output.
3. Select the Channel of the data source you want to output.
4. Select the Publisher you want to output.
5. Select the Units for the Publisher output.
6. Enter a value for the Base (low end) of the chosen output range that corresponds to a 4mA output.
7. Enter a value for the Span (high end) of the chosen output range that corresponds to a 20mA output.
8. Choose the Error Level, the way the output will respond during an error condition:
Option Output Response
Hold Value Holds the last “good” reading.
Force Hi (20mA) Forces Output to 20mA.
Force Lo (4mA) Forces Output to 4mA.
Force HH Forces Output to 21mA
Force LL Forces Output to 3.8mA
Force Value Enables the user to enter a value between 4mA and 20mA, to be output during an error.

9. Select Mode, either Passive or Active.

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3.9.2 Frequency/Totalizers
1. Select Freq/Totals to bring you to the menu.
2. Select Linked or Independent
Note: If you select Linked, both outputs will be setup the same, just 90° out of phase. If you select Independent, you
will set up each output separately.

3. Select Freq/Total #1.

a. Status-Select On or Off
b. Mode-Select Frequency or Totalizer
c. Drive Ctl-Select Open Drain or Push-Pull
3.9.2a Frequency
1. Units - Choose the channel, parameter and units to output.
2. Fbase - Enter the lowest value of the Frequency range you want to output.
3. Fspan - Enter the highest value of the Frequency range you want to output.
4. Value(min) - Enter the value of the parameter you want to correspond to the min. value of the frequency range.
5. Value(max) - Enter the value of the parameter you want to correspond to the max. value of the frequency range.
6. Choose the Error Level, the way the output will respond during an error condition. Choose Force LO, Force HI,
Hold Last, or Force Value. When the meter goes into Error, the choosen Error level will be output through the
Frequency Output.:
Option Output Response
Force Lo Forces Output to Fbase.
Force Hi Forces Output to Fspan.
Hold Last Holds the last “good” reading.
Force Value Enables the user to enter a value between the Frequency Range, to be output during an error.

3.9.2b Totalizer
1. Units - Choose the channel, parameter and units to output
2. Unit/Pulse - Choose how many units of the chosen parameter are accumulated until a pulse is sent out.
3. Pulse Width - Choose the length of each pulse output.
Note: Make sure the meter is not going to be outputting more than one pulse during this time, as this could lead to
missed pulses.

4. Polarity - Choose the Negative or Positive edge of the pulse.

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3.9.3 Alarms
1. Select Status, and choose either OFF, Normal, or Failsafe.
a. OFF - Disables alarm functionality.
b. Normal - Selection for conventional operation.
c. Failsafe - Selection for fail-safe operation.
2. If Normal or Failsafe has been chosen, select Type.
a. Level
Units - Defines the Unit of Measure for the alarm.
Trip Point - Defines the level where the alarm trips.
Dead Band - Defines the amount past the trip point where the alarm resets.
Trip Direction - Defines the direction of the alarm trip, above the set Trip Point or Below the set Trip Point
Error Level -
Reset - Reset would force the alarm state to reset on error or fault condition. Reset would be such that
NO would be NO, unless configured for failsafe.
Trip - Trip would force the alarm to Trip direction on error or fault condition.
Hold Last - Hold Last would hold the current state of the alarm on an error or fault condition.

b. Direction
The alarm can be tripped on forward or reverse flow. It uses volumetric in m3/s. The alarm will look for a
positive or negative change in this flow reading.
c. Fault Alarm
Trips the alarm on a particular fault, like E1 or E2. Can configure for individual faults, all faults or flow faults.
3. Choose Latch State
a. Latch - Enables the alarm to hold its state. This selection causes the User Intervene Indicator to be lit when an
alarm occurs.
b. No Latch - The alarm is reset when the error condition clears.
c. Clear Latch - Changes the latched state. This will turn off the User Intervene Indicator if the meter is no longer
in error.

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3.9.4 Analog Inputs (Additional Option)

If an option card is installed, Analog Inputs are available to the user.

1. Select the appropriate Slot for the Option Card.

2. Select the Ain item that you want to set up.
3. Enter a Value for the Label if you want it changed.
4. Select Mode and choose Off to turn off the input, or choose Temperature, Pressure or Density to set it up as one of
those inputs.
a. Choose the Units for the input.
b. Enter the Base (low end) of the input.
c. Enter the Span (high end) of the input.

5. Select Cal to Trim the inputs.

If a Calibration is not going to be performed, load nominal calibration values by selecting Reset Trim. This will enable
4-20 to be read with undetermined accuracy. In order to meet accuracy, a proper Calibration must be performed.

• Make sure the inputs are wired correctly according to Figure 28 on page 35.

• Set the input to 4mA, for the Low end.

• Select Trim Base.

• Select Yes.

• Set the input to 20mA, for the High end.

• Select Trim Span.

• Select Yes.

• Calibration is complete.

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3.9.5 RTD (Additional Option)

If an option card is installed, an RTD Input may be available to the user, depending on the option card ordered.

1. Select the appropriate Slot for the Option Card.

2. Select the Temp(RTD) option
3. Enter in a Value for the Label if you want it changed
4. Select Mode and choose Off to turn off the input, or choose Temperature and select the input Temperature units.
5. Select CAL.
a. Make sure the RTD is connected to the terminal board correctly, according to Figure 28 on page 35.
b. GE Sensing's calibration process involves using a temperature bath and an iRTD (reference).
c. The iRTD is connected to iRTD Win Software to read the values.
d. The Meter is set up to display 1C:RTD.
e. Under IO/Slot 1/1C:Temp(RTD)/Mode choose temperature and enter in the right units.
f. A 2 to 5 point calibration is allowed with Sentinel LNG.
Cal points must be entered with the lowest temperature starting at setpoint #1, and in increasing order to the
highest setpoint.
Cal points must be performed over the full range to be measured. Temperatures that are out of the calibrated
range (not on or between the highest and lowest setpoints) will not have calibration information applied to them
and will not be corrected. "Falling off of the cal range," or increasing the temperature beyond the last setpoint
could cause data to be discontinuous.
Empty locations in the calibration table should be filled with the value '0'.

g. The Setpoint is the actual temperature that you are trying to read.
h. The Offset is the temperature the meter is reading from the probe minus the reference reading.
i. Run all points with the values set to 0, and then fill them in when all cal points are complete.
6. Select Reset Table if you want to return all Calibration Entries back to 0.

3.10 Display
1. From the main menu, use the arrow keys to scroll to DISP. The screen displays four options: Views, Contrast,
Backlight, and Mode. Use the arrow keys to select an option to be configured.
2. To set up display Views, select it, and press [ENT]. 1 View and 2 Views appear as options.
3. Move through the categories and set up each view as desired. Press [ESC] to return to the DISP menu.
4. To change the display Contrast, select it, and press [ENT]. Using the arrow keys, change the percentage digits as
desired, and press [ENT]. The screen returns to the DISP menu.
5. To change the display Backlight, select it, and press [ENT]. Using the arrow keys, change the percentage digits as
desired, and press [ENT]. The screen returns to the DISP menu.
6. To change the display Mode, select it, and press [ENT]. Select Normal or Reverse and press [ENT]. The screen
returns to the DISP menu.

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3.11 Calibration
1. Connect the Analog Output to an ammeter.
2. From the main menu, use the arrow keys to scroll to CAL. The screen displays one option: 4-20 Loop. Press [ENT]
and four categories appear: Base Trim, Span Trim, Percent and Mode.
3. Select Mode, press [ENT], and select Test(Trim).
4. Set the percentage to 0% and press [ENT].
5. Select Base Trim, press [ENT], and using the arrow keys, enter what the ammeter is reading.
6. Set the percentage to 100% and press [ENT].
7. Select Span Trim, press [ENT], and using the arrow keys, enter what the ammeter is reading.
8. Go to Mode and select Normal.
9. Calibration of the 4-20mA Output Loop is complete.

3.12 User Security

• From the main menu, use the arrow keys to scroll to USER. The Edtcde screen displays three options: Edit
Passcodes, Security, and Set Security.

3.12.1 Edit Passcodes

This User option is made available only to Security Levels of User-Admin, Field Service, Factory and Engineering
(see Table 8 on page 40 and the Security Level descriptions on page 41). On selection, the Passcodes for User-1 to
User-4 and User-Admin can be modified. The Passcodes for Field Service, Factory, Engineering, Full-Lock and
Program-Lock cannot be customized.

• To enter or edit user passcodes, select Edit Passcodes, and press [ENT]. Select the USER/ADMIN number to be
added or changed, and press [ENT]. Use the arrow keys to add or change the appropriate digits, and press [ENT].

3.12.2 Security Timeout

This User option is made available only to Security Levels of User-Admin, Field Service, Factory and Engineering
(see Table 8 on page 40 and the Security Level descriptions on page 41). This option enables the Admin, Field Serivce,
Factory and Engineering users to set a timeout period, after which the meter will switch back to Full-Lock mode, if no
keypad activity is noted. The Timeout ranges from 1 minute to 60 minutes. The Security Timeout period set is
applicable only for User-1 to User-Admin. For other Security Levels, the Timeout period is invalid.

• To change the Security Timeout, select Security, and press [ENT]. Use the arrow keys to change the appropriate
digits, and press [ENT].

3.12.3 Set Security

The User is allowed to set a security level below the current level.

• To set or change the security level, select Set Security, and press [ENT]. The screen lists ten options: Full Lock,
Display Locked, User1 through 4, User Admin, Field Service, Factory, and Engineering. Select the appropriate
level of security and press [ENT].

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3.13 Factory Status

1. From the main menu, use the arrow keys to scroll to FACTORY. The screen displays five options: Versions, Default
Meter, Upgrade, System Info, and Tag.
2. To set the version type, select Versions, and press [ENT]. The screen displays two options: Main and Option Cards.
3. Select Main, and press [ENT], and the screen displays Version Info. Press [ESC] and the screen returns to the
Versions menu.
4. Select Option Cards, and press [ENT], and the screen displays Option Card Version Info. Press [ESC] and the screen
returns to the Versions menu. Press [ESC] to return to the FACTORY menu.
IMPORTANT: Do not return the meter to default settings without speaking to someone at the factory first.
5. To return the meter to the default settings, from the FACTORY menu, select Default Meter and press [ENT]. Select
Yes to confirm or No to cancel, and press [ENT]. The screen returns to the FACTORY menu.
IMPORTANT: Do not upgrade the meter’s code without speaking to someone at the factory first.
6. To upgrade the meter’s code, from the FACTORY menu, select Upgrade, and press [ENT]. Select Yes to confirm or
No to cancel, and press [ENT]. The screen returns to the FACTORY menu.
7. To access system information, select System Info, and press [ENT]. The screen displays DATE/TIME and UpTime.
Press [ESC] to return to the FACTORY menu.
8. To change the Tag, select the given name, and press [ENT]. Use the arrow keys to change the letters to the new
name Tag. When complete, press [ENT], and the screen returns to the FACTORY menu.

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Chapter 4. Advanced Programming

Note: The Advanced Program is accessible only to persons with Field Service, Factory or Engineering status.

The Advanced Program enables the entry of parameters in the following categories:

• Transducer - enter data for preprogrammed or special clamp-on transducers

• K Factor - enter the Meter Correction (K) Factor as a single value or as a table of values

• Pipe - enter pipe parameters

• Weight Factors - enter the appropriate weight parameter.

To measure flow rate with the Sentinel LNG, activate the channel/path(s) and enter the transducer, pipe and fluid
parameters. Appendix A includes a complete set of menu maps for the User Program, including Figure 231 on
page 216 for the PROG menu.

4.1 Entering Transducer Parameters

To enter parameters for preprogrammed or special clamp-on transducers, use the Transducer menu. Remember to
record all programmed data in Appendix C, Data Records.

To access the Transducer submenu, from the main screen:

1. Press [ESC]. The Sentinel LNG enters the User Program.

2. Press the [] key until PROG is bracketed in the top left corner and press [ENT].
3. Use the [] and [] keys to scroll to the desired Channel and press [ENT].
4. Scroll to the Transducer submenu and press [ENT]. Clamp-on and Wetted options appear.

4.1.1 Clamp-On Transducers

1. To set up Clamp-on transducers, scroll to Clamp-on and press [ENT].
2. Scroll to either Preprogrammed (for the standard transducers) or Other (for special transducers), and press [ENT].
3. The program also calls for the Wedge Temperature. Scroll to the Wedge TMP option and press [ENT]. Then use the
[] and [] keys to enter the temperature, and press [ENT].
Note: The wedge temperature of the transducer can be approximated by inputting an average value for the surface
temperature of the outside pipe wall.

4. Do one of the following:

• For preprogrammed transducers, scroll to the desired Transducer Number (407 [2 MHz], 408 [4 MHz], 409
[500 kHz] or 410 [1 MHz]) and press [ENT]. Then press [ESC] three times to return to the PROG menu.
• For other Clamp-on transducers, proceed to Other Transducers on the next page.
IMPORTANT: Other (special) transducers have no engraved number on the housing and are rarely used. Examine the
transducer housing carefully for a number.

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4.1.2 Other Transducers

1. The first required parameter is the Frequency. Press [ENT] to open the Frequency window. Then scroll to the
frequency of your transducer (from 0.25 to 4.00 MHz) and press [ENT].
2. The meter next asks for the Time Delay (Tw). Scroll to the Tw option and press [ENT]. Then use the arrow keys to
enter the time provided by GE Sensing (in microseconds), and press [ENT].
3. The next parameter is the Wedge Angle, the angle of the transducer’s ultrasonic transmission in the transducer
wedge. Scroll to the Wedge Ang option and press [ENT]. Use the arrow keys to enter the provided angle (in
degrees), and press [ENT].
4. To enter the Wedge Soundspeed, scroll to the Wedge SS option and press [ENT]. Use the arrow keys to enter the
provided soundspeed (in m/s or ft/s), and press [ENT].
5. The final parameter is the Temperature Coefficient. Scroll to the TempCo option and press [ENT]. Use the arrow
keys to enter the provided coefficient, and press [ENT]. Set the coefficient to 0 if you are unsure of the value.
Entering parameters for other transducers is complete. Press [ESC] to reach the PROG menu and continue programming,
or continue pressing [ESC] to resume displaying data.

4.1.3 Wetted Transducers

1. To set up Wetted transducers, select Wetted from the Transducer submenu and press [ENT].
2. Scroll to either Preprogrammed (for the standard transducers) or Other (for special transducers), and press [ENT].
3. For preprogrammed transducers, scroll to the desired Transducer Number (BWT [500kHz], #51 [1 MHz], or
#52 [2MHz] and press [ENT]. Then press [ESC] three times to return to the PROG menu.
4. For Other transducers, from the Wetted menu select Other and press Enter.
5. To change the frequency select Frequency, scroll to the desired frequency value and press Enter.
6. To change the Time Delay, select Tw... and press Enter.
7. Using the arrow keys, change the time delay as needed, then press Enter.

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4.2 Entering Path Data

In the Path submenu, specify and check the path taken by the transducer signal. Remember to record all programmed
data in Appendix C, Data Records.

Note: From the PROG menu, proceed directly to Step 4. To select a different option, scroll to that option and press
[ENT] twice to select it (once to enter and again to confirm the selection).

To access the Path submenu:

1. Press [ESC]. The Sentinel LNG enters the User Program.

2. Press the [] key until PROG is bracketed and press [ENT].
3. Use the [] and [] keys to scroll to the desired Channel and press [ENT].
4. Scroll to the Path submenu and press [ENT].
5. Path Length and Axial Length appear with numeric values. To change a value, select the length type and press
Enter.
6. Use the arrow keys to change the numbers and press Enter.
Press [ESC] to return to the PROG menu, or continue pressing [ESC] until the display screen reappears.

4.3 Entering Signal Parameters

In the Signal submenu, set parameters that affect the transducer signal:

CAUTION! The SIGNAL default settings are suitable for most applications. Consult the factory before
changing any of these settings.

• Delta-T Offset • Velocity Averaging • Maximum Samples/Cycle • Gain Mode

• Zero Cutoff • Sample Size • Tx Bark Code • Delay Time
• Peak Detection • Batch Size • RxW Size • Active Tw Tbc

While following the programming instructions, refer to Figure 231 on page 216.

Note: From the PROG menu, proceed directly to Step 4. To select a different option, scroll to that option and press
[ENT] twice to select it (once to enter and again to confirm the selection).

To enter the Signal submenu:

1. Press [ESC]. The Sentinel LNG enters the User Program.

2. Press the [] key until PROG is bracketed and press [ENT].
3. Use the [] and [] keys to scroll to the desired Channel and press [ENT].
4. Scroll to the Signal option and press [ENT].
5. The first prompt, Delta-T Offset, is the difference between the upstream and downstream transit times of the
transducer signals. It should normally be set to 0. Press [ENT], use the arrow keys to enter the new value, and press
[ENT] to confirm the entry.

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4.3 Entering Signal Parameters (cont.)

6. The next prompt requests the Zero Cutoff. Near “zero” flow, the Sentinel LNG may have fluctuating readings due
to small offsets (caused by factors such as thermal drift in the fluid). The zero cutoff causes velocity measurements
less than the cutoff to be reported as zero. To set the cutoff, press [ENT], and use the arrow keys to enter the new
value. Press [ENT] to confirm the entry.
7. The next prompt requests the Peak Detection method. In the “Peak” method, the peak is identified by testing a
derivative of the signal. In the “Threshold” method, the peak is identified as the point where the signal crosses a
threshold that is a percentage of the maximum signal detected. The peak method is more reliable in identifying the
signal in dynamic conditions, while the threshold method is more reliable in marginal signal conditions.
Note: Do not change the peak detection method or values unless recommended by the factory.

a. Press [ENT]. The screen shows the two display options, Peak and Threshold. Scroll to the desired option, and
press [ENT].
b. The next screen depends on your selection in Step a.
• Select Peak, and no further options are available. Press [ESC] to return to the Signal menu.

• Select Threshold and press [ENT], the screen shows three parameters: Min Threshold, Max Threshold and Percent
of Peak. For each parameter, press [ENT]. Use the arrow keys to enter the new value, and press [ENT].
8. The next prompt requests Velocity Averaging, in which users select a velocity measurement to smooth out noise in
the signal. Press [ENT], and use the arrow keys to change to the desired number. Press [ENT] to confirm the entry.
9. The next parameter is the Sample Size, the number of pulses each transducer (upstream and downstream) emits. It
is set to 8 by default. Press [ENT], and use the [] and [] keys to scroll to the new number (from 1 to 32). Press
[ENT] to confirm the entry.
10. The next prompt requests Batch Size. Press [ENT] and use the [] and [] keys to scroll to the new number (from
1 to 32). Press [ENT] to confirm the entry.
11. The next parameter is the Max Samples/Cycle. Press [ENT] and use the [] and [] keys to scroll to the new
number (32, 16 or 8). Press [ENT] to confirm the entry.
12. The next parameter is the Tx Bark Code. Press [ENT] and use the [] and [] keys to scroll to the new option
(AUTO, OneBit, TwoBit, Fourbit, ElevenBit, or Pulse1Bit to Pulse16Bit). Press [ENT] to confirm the entry.
13. The next prompt is RxW Size. Press [ENT] and use the [] and [] keys to scroll to the new option (8192, 4096,
2048, 1024, 512, or 256). Press [ENT] to confirm the entry.
14. The next prompt is Gain Mode. Press [ENT] and use the [] and [] keys to scroll to AUTO or Manual. If you
select AUTO and press [ENT] the screen returns to the Signal menu. If you select Manual, DAC Counts appears.
Press [ENT], use the arrow keys to enter the new value, and press [ENT].
15. The next prompt is Delay Time. To change the delay time, press [ENT], use the arrow keys to enter the new value,
and press [ENT].
16. The next prompt is ActiveTw Tbc. To change the numeric value, press [ENT], use the arrow keys to enter the new
value, and press [ENT].
Entering parameters in the Signal option has been completed. Press [ESC] to return to the PROG menu, or continue
pressing [ESC] until the display screen reappears.

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4.4 Entering the Meter Correction (K) Factor

With the K Factor submenu, calibrate or adjust the Sentinel LNG readings to another flow reference. While following
the programming instructions, refer to Figure 231 on page 216. To enter K Factor data:

Note: From the PROG menu, proceed directly to Step 4. To select a different option, scroll to that option and press
[ENT] twice to select it (once to enter and again to confirm the selection).

1. Press [ESC]. The Sentinel LNG enters the User Program.

2. Press the [] key until PROG is bracketed in the top left corner and press [ENT].
3. Use the [] and [] keys to scroll to the desired Channel and press [ENT].
4. Scroll to the K Factor submenu and press [ENT].
5. The screen shows three options: Off, Single and Table. Scroll to the desired option, and press [ENT].
6. The menu varies, depending on the selection in Step 5.
• Select Off, and no further choices are available.

• Select Single, and the Sentinel LNG displays the K Factor. To change the value, press [ENT]. Use the arrow keys to
change the value and press [ENT].
IMPORTANT: If the Reynolds Correction factor in the Fluid option has been enabled, the K factor should be set to
1.00. Otherwise, the typical factor is between 0.5 and 2.00.
• Select Table, and the screen displays four options: Units, Rows Used, Edit Table and Reset Table.
a. Select Units and press [ENT] and the screen displays the selected measurement units (either metric or English).
Press [ESC] or [ENT] to return to the previous screen.
b. Select Rows Used and the program requests the number of rows desired. Enter the number (from 2 to 20) and
press [ENT].
c. Select Edit Table and the table opens with a series of rows. Scroll to the desired row, and press [ENT].
d. For each row, the screen displays the X (velocity) value and the K Factor. To change either value, scroll to the
value and press [ENT]. Use the arrow keys to change the value and press [ENT].
e. Repeat steps c and d until all available data (from 2 to 20 rows) has been programmed.
• Press [ESC] to return to the PROG menu, or continue pressing [ESC] until the display screen reappears.
a. Select Units and press [ENT] and the screen displays two more options: Velocity and Diagnostic. Select Velocity
and press [ENT] and the screen displays Meters/sec. Press [ESC] or [ENT] to return to the previous screen. Select
Diagnostic, press [ENT] and Reynolds # appears. Press [ESC] or [ENT] to return to the previous screen.
b. From the Unit Menu, select Rows Used and press [ENT]. Use the arrow keys to enter the desired number (from 2
to 20) and press [ENT].
c. Select Edit Table and press [ENT], and the table opens with a series of rows. Scroll to the desired row, and press
[ENT].

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4.4 Entering the Meter Correction (K) Factor (cont.)

d. For each row, the screen displays the Reynolds Correction number (X) and the Kinematic Viscosity (K Fact). If
you wish to change either value, scroll to the value and press [ENT]. Use the arrow keys to change the value
(available in Soundspeeds and Pipe Size Data, document #914-004), and press [ENT].
e. Repeat steps c and d until all available data (from 2 to 20 rows) has been programmed.
f. Press [ESC] to return to the PROG menu, or continue pressing [ESC] until the display screen reappears.
g. To confirm changes to the table, from the Unit Menu, select Reset Table... and press Enter. To reset the table
select Yes and press Enter. To not reset the table, select No and press Enter.

4.5 Entering Pipe Parameters

In the Pipe submenu, preprogrammed or special pipe parameters can be specified. While following the programming
instructions, refer to Figure 231 on page 216. Remember to record all programmed data in Appendix C, Data Records.

Note: From the PROG menu, proceed directly to Step 4. If a different option is desired, scroll to that option, and press
[ENT] twice to select it (once to enter and again to confirm the selection).

To access the Pipe submenu:

1. Press [ESC]. The Sentinel LNG enters the User Program.

2. Press the [] key until PROG is bracketed and press [ENT].
3. Use the [] and [] keys to scroll to Composite and press [ENT].
4. Scroll to the Pipe submenu and press [ENT].

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4.6 Entering the Pipe Material

1. The menu offers two options, Material and Lining. Be sure the Material option is highlighted, and press [ENT].
2. Two other options now appear, Preprogrammed and Other. Scroll to the desired option, and press [ENT].
3. The menu now varies with your choice in Step 2.
• For preprogrammed materials, a list of materials opens. Table 10 below covers the available preprogrammed
materials on the list. Press the [] or [] keys to scroll to the appropriate material. Press [ENT] to confirm the
choice.
• For other materials, the meter asks for the material Soundspeed. Press [ENT] to open the window. Then use the
arrow keys to enter the known soundspeed, and press [ENT].
.
Table 10: Preprogrammed Pipe Materials
Category Specific Material Category Specific Material
Al - Aluminum Rolled or None Monel None
Brass None Nickel None
Cu - Copper Annealed, Rolled or None Plastic Nylon, Polyethylene, Polypropylene,
PVC (CPVC), or Acrylic
CuNi - Copper/Nickel 70% Cu 30% Ni or 90% Cu 10% Ni Steel Carbon Steel, Mild or Stainless Steel
Glass Pyrex, Flint, or Crown Tin Rolled
Gold Hard-drawn Titanium None
Inconel None Tungsten Annealed, Carbide, Drawn
Iron Armco, Ductile, Cast, Electrolytic Zinc Rolled

4. The next required parameter is either the outside diameter (OD) or the circumference (OD x PI) Scroll to the
measured parameter and press [ENT]. For either measurement, enter the desired value and press [ENT].
Note: Obtain the required information by measuring either the pipe outside diameter (OD) or circumference at the
transducer installation site. The data may also be obtained from standard pipe size tables found in
Soundspeeds and Pipe Size Data (914-004).

5. The meter also requires the Wall Thickness (WT). Scroll to the WT option, and press [ENT]. Use the arrow keys to
enter the known thickness, and press [ENT].
Note: To obtain an accurate pipe wall thickness measurement, use an ultrasonic thickness gauge.

6. If certain materials (such as carbon or stainless steel, cast iron, PVC and CPVC) have been selected, the Sentinel
LNG offers the option of entering the pipe dimensions by a standardized schedule. (This option does not appear
unless one of these materials has been selected; if so, proceed to step a below.) Once the nominal pipe size and
schedule number are entered, the Sentinel LNG determines the OD and wall thickness from an internal table.
a. Scroll to the Schedule option, and press [ENT]. A list of pipe sizes opens, from 15 to 200 mm (0.5 to 8 in.).
b. Scroll to the desired pipe size, and press [ENT]. A list of schedules opens.
c. Scroll to the desired schedule, and press [ENT].
Entering the pipe parameters is complete. Press [ESC] to return to the Pipe Material/Lining window, or continue pressing
[ESC] to return to the data display window.

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4.7 Entering Pipe Lining Data

To access the Lining option:

1. From the Pipe submenu, scroll to the Lining option, and press [ENT].

2. Two options appear, Material and Thickness. Be sure Material is highlighted, and press [ENT].

3. Two other options now appear, Preprogrammed and Other. Scroll to the desired option, and press [ENT].

4. The menu now varies with your choice in Step 3.

• For preprogrammed linings, the screen shows a list of Lining Materials, listed in Table 2-2 below. Scroll to the
appropriate material. If the pipe has no lining, select “None.” Press [ENT] to confirm the choice.
• For other materials, the next screen asks for the lining Soundspeed. Press [ENT] to open the soundspeed window.
Use the arrow keys to enter the known soundspeed, and press [ENT].

Table 11: Preprogrammed Lining Materials

Lining Material Options
None Mortar
Tar/Epoxy Rubber
Glass (Pyrex) PTFE
Asbestos Cement

Note: If your pipe lining is not on the drop-down list, consult the factory for further information.

Entering data in the Pipe submenu is complete. Now, do one of the following:

• To program in other options, press [ESC] to return to the PROG menu.

• To program in other menus, refer to Appendix A, Menu Maps, to navigate to the desired menu.

• To leave the User Program, press [ESC] until the display screen reappears.

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Chapter 5. Using PanaView

5.1 Introduction
This chapter provides comprehensive instructions for programming the data required to place the Sentinel LNG system
into operation. In order to program the Sentinel LNG, the user must have a personal computer connected to the meter,
and the PanaView™ software, shipped with the unit, installed on that computer.

Note: See the PanaView™ Graphical User Interface User’s Manual for information on those User Program features
not covered in this chapter. The Sentinel LNG is designed to be programmed and operated with PanaView™
software only.

5.2 Wiring the RS232 Interface

The Sentinel LNG uses an RS232 interface to communicate with a PC. For details on wiring your RS232 interface,
please refer to Chapter 2 (Installation) of this manual and to the document EIA-RS Serial Communications (916-054).

5.3 Establishing Communications with Panaview™

After your hardware and software have been installed as described in Chapter 2 of this manual and in Chapters 2
(Installation) and 3 (Initial Setup) of the PanaView™ User’s Manual, the procedure for establishing communications
with a meter may be started.

5.3.1 Adding a Communications Port

Under File open a New Meter Browser. The browser is designed to access computers and instruments with the look and
feel of a file management system. To connect to the instrument using a remote computer, first add that computer to your
network. If the computer is connected directly to the instruments, add the communication ports to the browser network.

Figure 36: Adding a New Communication Port to the PC

Place the mouse pointer over the name of the computer and press the right mouse button. This activates the selection
menu for this object (see Figure 36 above).

Select My Computer > New > Communications Port > and add a port by pressing the left mouse button.

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5.3.1 Adding a Communications Port (cont.)

Once the port is added, the port properties will need to be set. See Figure 37 below which shows the default properties
for the meter. The communication settings can be modified at any time by selecting the port on the network tree with
the right mouse button and choosing Properties.

Note: Refer to Adding a New Communication Port in Chapter 4 of the PanaView™ Instrument Interface Software
Operation and Installation Guide (910-211C).

Figure 37: Default Communication Parameters

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5.3.2 Adding the Sentinel LNG to the Communications Port

Select the desired communication port by clicking once on it with the left mouse button (see Figure 38 below). Then
press the right mouse button to activate the pop-up menu. Select New > Meter > from the pop-up menu.

Figure 38: Adding the Sentinel LNG to the Comm Port

If the node ID is known, select “I know the node ID of the meter I am adding to the network,” then click the OK button
(see Figure 39 below). If the node ID is not known proceed to page 71)

Note: The default node ID is 2. If another node ID was previously programmed, that data must be available in order
to select “I know the node ID of the meter I am adding to the network.”

Note: The network referred to in Figure 39 below is the network of meters under a single communication port. Up to
sixteen meters can be connected to form a PanaView™ meter network.

Figure 39: Instrument Node ID Acknowledgement

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5.3.2 Adding the Sentinel LNG to the Communications Port (cont.)

Enter the ID number in the ID: entry, a meter name in the Name: entry, and then click on the OK button.

Note: Do not enter any data in the Clock: entry.

Figure 40: Setting the Node ID

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5.3.2 Adding the Sentinel LNG to the Communications Port (cont.)

If the node ID is not known, select "I don't know the node ID of the meter I am adding to the network" and then click on
the OK button (see Figure 41 below).

Note: The network referred to in Figure 41 below is the network over which the new meter and the computer are
communicating.

Note: The new meter must be the only powered meter on the network.

Figure 41: Instrument Node ID Disacknowledgement

At the next prompt (see Figure 42 below) select “It is the only meter connected to the communication port” and then
click on OK.

Figure 42: Searching the Port for Instrument Node ID

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5.3.2 Adding the Sentinel LNG to the Communications Port (cont.)

If PanaView™ found the meter, a window will pop up and inform the user which Node ID the meter is set to. The
operator can select to use the existing Node ID or a different Node ID (see Figure 43 below).

Note: The Node ID can be changed later on by going to the meter properties.

Figure 43: Selecting the Node ID

Once communication has been established, the Node ID can be set to any "master" Node ID. A "master" Node ID is an
integer which is a multiple of 16.

Note: A "slave" Node ID is all the numbers between two consecutive masters. However the term “slave” does not
apply to the Sentinel LNG.

If “I wish to use a different Node ID” is selected, the window in Figure 40 on page 70 appears, and the user must then
enter the Node ID number in the ID entry.

Once the Node ID is entered in the Add Meter window ID box, click on the OK button to add the meter to the
PanaView™ network.

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5.4 Meter Security

After the node address is set, the instrument will be added to the network of instruments on PanaView™ and the
operator will be given the opportunity to program the flowmeter parameters. Before any meter parameters can be
changed, the operator must be specified.

Each property menu window includes a SECURITY button which enables the user to set security for individual meter
parameters. From a property menu window, press the SECURITY button and the following screen appears. To restrict
other people from changing parameters, enter a passcode in the four single-digit windows, press Enter to accept the
passcode and press Lock Out to set security. To change a parameter, the passcode must be entered.

Figure 44: Security Form

5.5 Meter Properties

1. To set meter properties, click twice on the meter name and a list of parameter menus appears.

Figure 45: Parameter Menus

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5.6 Program Menu

1. To set up a channel, click twice on Program Menu and the following screen appears.

Figure 46: Program Channels

2. Click twice on the appropriate Channel # and the following screen appears.

Figure 47: Meter Properties

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5.6.1 Status Setup

1. To select whether the channel is on or off, click on Status and the following screen appears. Click On or Off twice,
and the screen returns to the PROGRAM menu.

Figure 48: Channel Status

5.6.2 Transducer Setup

1. To select the transducer type, click on Transducer and the following screen appears.

Figure 49: Transducer Types

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5.6.2 Transducer Setup (cont.)

2. Click twice on one option. If Clamp-On is selected, the following screen appears.

Figure 50: Clamp-On Transducer Options

3. To change the wedge temperature, enter the appropriate numbers into the text box (the box turns yellow), and click
on BACK. The Wedge TMP Verification screen appears. Click Yes to save the change, or No to return to the
previous value.
.

Figure 51: Wedge Temperature Verification

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4. Click twice on Preprogrammed... or Other... If Preprogrammed is selected, the following screen appears.

Figure 52: Preprogrammed Transducer Options

5. Click twice on the appropriate transducer number and the screen returns to the Clamp On menu.
6. If Other... is selected, the following screen appears.

Figure 53: Other Transducer Menu

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5.6.2 Transducer Setup (cont.)

7. To change one or more of the transducer characteristics, enter the appropriate numbers into the text box (the box
turns yellow), and click on BACK. The Verification screen appears. Click Yes to save the change, or No to return to
the previous value.
.

Figure 54: Tw Value Verification

8. To select a frequency, click on Frequency, and the following screen appears.

Figure 55: Transducer Frequency Options

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9. Click twice on the appropriate frequency and the screen returns to the previous menu. Click on the BACK button
and return to the PROGRAM menu.
Note: If Wetted was selected under Transducer Type (see Figure 49 on page 75), the following screen appears.

Figure 56: Wetted Transducer Options

10. Click twice on Preprogrammed... or Other... If Preprogrammed is selected, the following screen appears.

Figure 57: Preprogrammed Transducer Options

11. Click twice on the appropriate transducer number and the previous screen appears.

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5.6.2 Transducer Setup (cont.)

12. If Other was selected under Wetted (see Figure 56 on page 79), the following screen appears.

Figure 58: Other Transducer Menu

13. Click on Frequency and the following screen appears. Click twice on the appropriate value and the previous screen
returns. If necessary, change the time value in the text box. Click on BACK to return to the Program Menu.

Figure 59: Frequency Options

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5.6.3 Fluid Setup

1. From the Program Menu, click on Fluid. The following screen appears.

Figure 60: Fluid Reynolds Correction

2. To set up the Reynolds correction format, click on Reynolds and the following screen appears.

Figure 61: Fluid Reynolds Correction Menu

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5.6.3 Fluid Setup (cont.)

3. To turn off the Reynolds Correction Factor, click Off. Click Single... and the following screen appears.

Figure 62: Reynolds Correction Single Option

4. Enter the correct text box measurement and click BACK to return to the previous screen. If Table... was selected on
the previous screen, the following screen appears.

Figure 63: Reynolds Correction Unit Menu

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5. Click on Units and the following screen appears.

Figure 64: Reynolds Correction Units

6. Click twice on Soundspeed... and the unit option is Meters/sec. Click twice on Diagnostic... and the unit options
are Signal Up or Signal Dn. Click on BACK to return to the Unit Menu.

Figure 65: Reynolds Correction Unit Menu

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5.6.3 Fluid Setup (cont.)

7. Click on Edit Table and the following screen appears.
.

Figure 66: Reynolds Correction Row Options

8. Click twice on the Row... to be changed and the following screen appears. Read the AutoFormsNumeric message,
click OK, and enter the appropriate values in the text boxes above.
.

Figure 67: Editing Row Values

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9. Click on BACK twice to return to the Unit Menu and click on Reset Table to secure the value changes made above.
The following screen appears.
.

Figure 68: Resetting the Table

10. Click twice on Yes to confirm the changes, and the screen returns to the Unit Menu. To enter more table values,
repeat Steps 7 to 9. To program other parameters, click on BACK three times to return to the Program screen.

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5.6.4 Path Setup

1. To change path data, click on Path and the following screen appears.
.

Figure 69: Editing Path Data

2. To edit the number of path traverses, click on Traverses, and the following screen appears. Click twice on the
appropriate number, and the screen returns to the Path screen.
.

Figure 70: Number of Traverses

3. To change the path spacing, enter the number of millimeters into the text box and click on BACK. Click Yes on the
Spacing Verification screen, and click on BACK. The screen returns to the Program menu.

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5.6.5 Signal Setup

1. To set up or make changes to the signal values, click on Signal and the following screen appears.
.

Figure 71: Editing Signal Values

2. Click on categories to be set, select a type from each list, and make changes to the text boxes as needed.

5.6.6 K Factor Setup

To set up the K Factor, from the Program screen, click on K Factor and proceed as in Fluid beginning on page 81.

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5.6.7 Error Limits Setup

To set error limits, from the Program Menu, click on Error Limits and the following screen appears.

Figure 72: Setting Error Limits

Enter the appropriate values into the text boxes and click on BACK to return to the Program Menu.

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5.7 Composite Programs

1. From the PROGRAM menu, click twice on Composite, and the following screen appears.

Figure 73: Composite Program Menu

5.7.1 Pipe Setup

1. To enter pipe information, click on Pipe and the following screen appears.

Figure 74: Pipe Information Menu

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5.7.1 Pipe Setup (cont.)

2. Click on Material and the following screen appears.

Figure 75: Pipe Material

3. If the pipe material is standard, click on Preprogrammed... and the following screen appears.

Figure 76: Preprogrammed Pipe Material

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4. Locate the type that matches the pipe, click on it twice, and the following screen appears.

Figure 77: Preprogrammed Pipe Material

5. Enter the pipe size into each text box according to the category listed. When finished, click three times on BACK to
return to the Pipe Menu.
6. If the pipe material is not standard, from the Pipe Menu, click on Material, then click on Other... The following
screen appears.

Figure 78: Other Pipe Material

7. Enter the pipe size into each text box according to the category listed. When finished, click three times on BACK to
return to the Pipe Menu.

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5.7.1 Pipe Setup (cont.)

8. To enter pipe lining characteristics, from the Pipe Menu click on Lining. The following screen appears.

Figure 79: Lining Menu

9. Click on Material and the following screen appears.

Figure 80: Lining Material Options

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10. If there is no pipe lining, or the pipe lining is standard material, click twice on Preprogrammed... The following
screen appears.

Figure 81: Lining Material Types

11. Click twice on the lining material and the screen returns to the previous menu.
12. If the lining is not standard, click twice on Other and the following screen appears.

Figure 82: Other Lining Material Soundspeed

13. Enter the Soundspeed of the lining material and click on BACK twice. The screen returns to the Lining Menu.

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5.7.1 Pipe Setup (cont.)

14. Whether the pipe lining is Preprogrammed... or Other..., the Lining Menu screen includes a text box labeled
Thickness. Enter the lining material thickness in millimeters, click on BACK, and click Yes on the Thickness
Verification screen.
15. The screen returns to normal mode as shown below. Click on BACK twice to return to the Program Menu.

Figure 83: Lining Menu Complete

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5.7.2 Fluid Setup

1. Click on Fluid and the following screen appears.

Figure 84: Fluid Menu

2. Click on Fluid Type and the following screen appears.

Figure 85: Fluid Type Menu

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5.7.2 Fluid Setup (cont.)

3. If the fluid is a normal type, click twice on Normal. The following screen appears.

Figure 86: Normal Fluid Menu

4. If the fluid is standard, click twice on Preprogrammed... The following screen appears.

Figure 87: Preprogrammed Fluid Menu

5. Select the correct fluid from the list and click on it twice. The window returns to the Normal screen.

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6. If the fluid is not standard, on the Normal screen click twice on Other... and the following screen appears.

Figure 88: Other Fluid Screen

7. Enter the fluid soundspeed, click on BACK, and click Yes to verify, or No to reject, the change. Click on BACK.
8. On the Normal screen, to change the fluid Temperature, enter a new value into the text box and follow the
procedure above.
9. If the fluid type is not normal, on the Fluid Type screen click twice on Tracking... and the following screen appears.

Figure 89: Tracking Screen

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5.7.2 Fluid Setup (cont.)

10. If the fluid type is not standard, on the Tracking screen, click twice on Other and the following screen appears.

Figure 90: Other Fluid Menu

11. Enter the fluid Minimum and/or Maximum Soundspeed, click on BACK, and click Yes to verify, or No to reject the
change. When the Fluid changes are complete, click on BACK to return to the composite Program menu.

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5.7.3 Signal Setup

1. To set up or make changes to the signal values, click on Signal and the following screen appears.
.

Figure 91: Editing Signal Values

2. Click on the categories that need to be set, select the appropriate type from each list, and make changes to the text
boxes as needed.

5.7.4 K Factors Setup

1. To set up the K Factors, from the Program screen, click on K Factors and the following screen appears.
.

Figure 92: K Factors Menu

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5.7.4 K Factors Setup (cont.)

2. Click on K Factor and the following screen appears.
.

Figure 93: K Factor Options

3. To change a single K Factor, click twice on Single.... The following screen appears.
.

Figure 94: K Factor Value Option

4. Enter the K factor and click on BACK. Click Yes to verify, or No to reject, the new K Factor, and click on BACK.

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5. On the K Factor screen, to change multiple K factors, click on Table... The following screen appears.

Figure 95: K Factor Unit Menu

6. Click on Units and the following screen appears.

Figure 96: Units Publisher Menu

7. To check the velocity unit of measure, click twice on Velocity... and the screen shows the unit. Click BACK. To
check the diagnostic unit, click twice on Diagnostic... and the screen shows the unit. Click BACK. Click BACK again
to return to the Unit Menu.

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5.7.4 K Factors Setup (cont.)

8. Click on Edit Table and the following screen appears.

Figure 97: Rows Menu

9. Click twice on the row to be changed and the following screen appears.

Figure 98: Row Menu

10. Enter a new Reynolds # and/or K Factor, click on BACK, click Yes to verify, or No to reject, the new X and/or
K Factor values, and click on BACK.
11. When the Row changes are complete, click on BACK to return to the Unit menu.

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12. To confirm the unit changes, click on Reset Table and the following screen appears.

Figure 99: Reset Table Menu

13. To confirm the reset, click Yes. To reject the reset, click No. The screen returns to the Unit Menu. Click on BACK
twice to return to the K Factor Menu.
14. Click on Path Ratio and the following screen appears.

Figure 100: Path Ratio K-Factor Menu

15. To turn off the Path Ratio K-Factor, click Off... twice. The screen returns to the K Factors Menu. To edit the path
ratio K factor, click twice on Table... and follow the previous instructions in Steps 10 through 15.

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5.7.5 Weight Factors Setup

1. From the composite Program menu, click on Weight Factors, and the following screen appears.

Figure 101: Weight Factor Menu

2. Click twice on the channel to be changed and the following screen appears. Enter the new weight into the text box
and click on BACK. Click Yes to confirm the change or click No to reject the change. Click twice on BACK to return
to the composite Program menu.

Figure 102: Weight Verification Screen

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5.7.6 Inputs Setup

1. From the composite Program menu, click on Inputs and the following screen appears.

Figure 103: Inputs Menu

2. To change the input temperature, click on Temperature, and the following screen appears.

Figure 104: Temperature Menu

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5.7.6 Inputs Setup (cont.)

3. To set a fixed temperature, click twice on Fixed... and the following screen appears.

Figure 105: Fixed Temperature Screen

4. Enter the appropriate fixed temperature value into the text box and click on BACK. Click Yes to confirm the change
or click No to reject it. Click on BACK and return to the Temperature menu.

Figure 106: Fixed Temperature Verification Screen

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5. To select an active temperature, from the Temperature menu click twice on Active... The following screen appears.

Figure 107: Active Temperature Menu

6. Click twice on the appropriate temperature and the screen returns to the Temperature menu.
7. Click on BACK to return to the Inputs menu and click on Pressure. The following screen appears.

Figure 108: Pressure Menu

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5.7.6 Inputs Setup (cont.)

8. To set a fixed pressure, click twice on Fixed... and the following screen appears.

Figure 109: Fixed Pressure Screen

9. Enter the appropriate fixed pressure value into the text box and click on BACK. Click Yes to confirm the change or
click No to reject it. Click on BACK and return to the Pressure menu.

Figure 110: Fixed Pressure Verification Screen

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10. To select an active pressure, from the Pressure menu click twice on Active... The following screen appears.

Figure 111: Active Pressure Menu

11. Click twice on the appropriate pressure and the screen returns to the Pressure menu.
12. Click on BACK to return to the Inputs menu and click on Density. The following screen appears.

Figure 112: Density Menu

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5.7.6 Inputs Setup (cont.)

13. To set a fixed density, click twice on Fixed... and the following screen appears.

Figure 113: Fixed Density Screen

14. Enter the appropriate fixed density value into the text box and click on BACK. Click Yes to confirm the change or
click No to reject it. Click on BACK and return to the Density menu.

Figure 114: Fixed Density Verification Screen

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15. To select an active density, from the Density menu click twice on Active... The following screen appears.

Figure 115: Active Density Menu

16. Click twice on the appropriate density and the screen returns to the Density menu. Click twice on BACK to return to
the composite Program menu.

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5.7.7 API Setup

From the composite Program menu, click on API Setup. The following screen appears.

Figure 116: API Setup Menu

17. To select the type of table, click on API Table Type . The following screen appears.

Figure 117: Table Type Menu

18. Click twice on the appropriate selection, and the screen returns to the API Setup Menu.

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19. To set up API conditions, click on API Conditions, and the following screen appears.

Figure 118: API Conditions Menu

20. Click on Base Conditions and the following screen appears.

Figure 119: API Base Conditions Menu

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5.7.7 API Setup (cont.)

21. If you click twice on a numeric entry, the screen returns to the API Conditions menu. If you select User Defined...,
the following screen appears.

Figure 120: API User Defined Base Condition

22. Enter the appropriate user defined base value into the text box and click on BACK. Click Yes to confirm the change
or click No to reject it. Click on BACK and return to the API Base Condition menu.

Figure 121: User Defined Base Temperature Verification Screen

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23. Click on BACK to return to the API Conditions menu. To provide Flow Measurement settings, click on Flow
Measure At, and the following screen appears.

Figure 122: API Flow Measurement Menu

24. Click on Observed... and the following screen appears.

Figure 123: API Observed Alternate Conditions Screen

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5.7.7 API Setup (cont.)

25. If changes are required, enter the appropriate condition into the text box and click on BACK. Click Yes to confirm
the change or click No to reject it. Repeat the process for the other condition if necessary, then click on BACK and
return to the API Flow Measurement menu.

Figure 124: Temp(alt) Verification Screen

26. To check alternate Flow Measurement settings, click on Flow Measure At. The following screen appears.

Figure 125: API Alternate Observed Conditions Screen

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27. If changes are required, enter the appropriate condition into the text box and click on BACK. Click Yes to confirm
the change, or click No to reject it. Repeat the process for the other conditions if necessary, then click on BACK five
times and return to the original Program menu.

Figure 126: Temp(obs) Verification Screen

28. Exit the original Program menu by clicking the X in the upper right-hand corner of the screen.

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5.8 Configuration Menu

5.8.1 Units Setup
1. To set up data configuration, click twice on Config Menu and the following screen appears.

Figure 127: Configuration Menu

2. To select the type of units, click on Units. The following screen appears.

Figure 128: Units Menu

3. Click twice on Metric or English. The screen returns to the Config menu.

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5.8.2 Communication Setup

1. To select a type of communication, click on Communication. The following screen appears.

Figure 129: Communication Menu

5.8.2a Modbus
1. To set up Modbus communications, click on Modbus. The following screen appears.

Figure 130: Modbus RTU Menu

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5.8.2a Modbus (cont.)

2. To change the Modbus address, enter the appropriate number into the text box and click on BACK. Click Yes to
confirm the change, or click No to reject it. Click on BACK to return to the Communication screen.

Figure 131: Modbus Address Verification Screen

3. To select the interface to be used, click on Interface. The following screen appears.

Figure 132: Interface Menu

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4. Click twice on your selection, and the screen returns to the Modbus RTU menu.
5. To select a word order to be used, click on WordOrder. The following screen appears.

Figure 133: Word Order Menu

6. Click twice on your selection, and the screen returns to the Modbus RTU menu.
7. To select a baud rate, click on Baud Rate. The following screen appears.

Figure 134: Baud Rate Menu

8. Click twice on your selection, and the screen returns to the Modbus RTU menu.

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5.8.2a Modbus (cont.)

9. To select a parity, click on Parity. The following screen appears.

Figure 135: Parity Menu

10. Click twice on your selection, and the screen returns to the Modbus RTU menu.
11. To select a volumetric unit, click on Volumetric. The following screen appears.

Figure 136: Parity Menu

12. Click twice on your selection, and the screen returns to the Modbus RTU menu.

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13. To select units, click on Total Units. The following screen appears.

Figure 137: Total Units Menu

14. Click twice on your selection, and the screen returns to the Modbus RTU menu.
15. To select standard volumetric units, click on Volumetric. The following screen appears.

Figure 138: Standard Volumetric Units Menu

16. Click twice on your selection, and the screen returns to the Modbus RTU menu. Click on BACK to return to the
Communication menu.

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5.8.2 Communication Setup (cont.)

5.8.2b HART
1. To set up HART software, click on HART. The following screen appears.

Figure 139: HART Menu

2. To set up HART variable configurations, click on Var Config, and the following screen appears.

Figure 140: Hart Variable Configurations Menu

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3. Click on PV Config and the following screen appears.

Figure 141: HART PV Configuration Menu

4. To select a channel for the HART PV Communication, click on Channel. The following screen appears.

Figure 142: Channel Menu

5. Click twice on the desired channel and the screen returns to the HART PV menu.
6. Click on Publisher and/or Unit and make selections as above.

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5.8.2b HART (cont.)

7. If required, from the HART PV menu, change the Base(4mA) and/or the Span(20mA) values. Enter the appropriate
temperature value into the text box and click on BACK. Click Yes to confirm the change, or click No to reject it.
Click on BACK to return to the HART Variables menu.
8. Make whatever changes are necessary to the SV, TV and/or QV Config menus as above, and click on BACK to return
to the HART menu.
9. Click on Loop Config to turn the Loop Signaling and Fixed Mode, On or Off.
10. On the HART menu, to change listed information, enter the appropriate text into the text box and click on BACK.
Click Yes to confirm the change, or click No to reject it. Click on BACK to return to the Communication screen.

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5.8.3 Reset Totals

1. To confirm the changes made, from the CONFIG menu click on Reset Totals. The following screen appears.

Figure 143: Reset Totals Menu

2. To set a location for the reset, click twice on ALL..., Channel X..., or Composite, and the following screen appears.

Figure 144: Reset Direction Options

3. Click twice on the Reset Totals Direction required, and the screen returns to the Reset Totals menu.
4. Repeat this process for another channel, if necessary. When complete, click on BACK, and the screen returns to the
CONFIG menu.

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5.8.4 Totalizer Errors

1. To set up totalizer error handling, click on Totalizer Errors, and the following screen appears.

Figure 145: Totalizer Error Handling

2. Click twice on the appropriate channel, and the following screen appears.

Figure 146: Confirming Totalizer Error Handling

3. Click twice on Yes to confirm the selection above, or No to reject it. Click on BACK to return to the original
CONFIG menu. Exit the original CONFIG menu by clicking the X in the upper right hand corner of the screen.

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5.9 Input/Output Menu

1. To set up the inputs and outputs, under the meter name, click twice on IO Menu and the following screen appears.

Figure 147: Input/Output Menu

5.9.1 Analog Outputs Setup

1. Click on Analog Outputs, and the following screen appears.

Figure 148: Analog Output Option

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5.9.1 Analog Outputs Setup (cont.)

2. Click twice on Analog Outputs and the following screen appears.

Figure 149: 4-20 Loop Menu

3. Click on Status and the following screen appears.

Figure 150: 4-20 Loop Status

4. Click On or Off twice and the screen returns to the 4-20 Loop menu.
5. Repeat this procedure for each option on the 4-20 Loop menu. Change the Base(4mA) and Span(20mA) text box
readings (if required). Confirm the new entries by clicking Yes on the Verification screens, and click BACK twice.

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5.9.2 Frequency/Totals Setup

1. From the IO (Input/Output) menu, click on Freq/Totals. The following screen appears.

Figure 151: Frequency/Total Link Mode

2. Click twice on the required Link Mode description, and the following screen appears.

Figure 152: Frequency/Total Number

Note: The Linked (90°)... has only one Freq/Total option, while the Independent... has two.

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5.9.2 Frequency/Totals Setup (cont.)

3. Click twice on the appropriate Freq/Total #, and the following screen appears.

Figure 153: Frequency/Total Options

4. Click on Status, and the following screen appears.

Figure 154: Frequency/Total Status

5. Click twice on the appropriate Status option, and the screen returns to the Freq/Total options

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6. Click on Mode, and the following screen appears.

Figure 155: Frequency/Total Mode Options

7. Click twice on the Frequency... option, and the following screen appears.

Figure 156: Frequency Menu

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5.9.2 Frequency/Totals Setup (cont.)

8. Click on Units, and the following screen appears.

Figure 157: Channel Options

9. Click twice on the appropriate Channel, and the following screen appears.

Figure 158: Publisher Options

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10. Click twice on the appropriate Publisher, and the following screen appears.

Figure 159: Unit Options

11. Click twice on the appropriate Unit option, and click on BACK until the Frequency menu appears. Click on Error
Level and the following screen appears.

Figure 160: Error Handling Options

12. Click twice on the appropriate Error Handling description, and the screen returns to the Frequency menu.

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5.9.2 Frequency/Totals Setup (cont.)

13. Under the Mode menu, click twice on Totalizer..., and the following screen appears.

Figure 161: Totalizer Menu

14. Click on Units, and the following screen appears.

Figure 162: Totalizer Channel Options

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15. Click twice on the appropriate Channel, and the following screen appears.

Figure 163: Publisher Options

16. Click twice on the appropriate Publisher option, and the following screen appears.

Figure 164: Unit Options

17. Click twice on the appropriate measurement Unit, and use the BACK button to return to the Totalizer menu.

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5.9.2 Frequency/Totals Setup (cont.)

18. From the Totalizer menu, click on Polarity, and the following screen appears.

Figure 165: Polarity Options

19. Click twice on the appropriate Polarity option, and the screen returns to the Totalizer menu.
20. Change the Unit/Pulse and/or Pulse Width text box readings (if required). Confirm the new entries by clicking Yes
on the Verification screens, and click BACK twice.
21. From the Freq/Total menu, click on Drive Ctl. The following screen appears.

Figure 166: Output Drive Options

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22. Click twice on the appropriate Output Drive description, and the screen returns to the Freq/Total menu. Click on
BACK three times to return to the IO (Input/Output) menu.

5.9.3 Alarms Setup

1. Click on Alarms and the following screen appears.

Figure 167: Alarm Options

2. Click twice on the appropriate Alarm #, and the following screen appears.

Figure 168: Alarm Menu

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5.9.3 Alarms Setup (cont.)

3. Click on Status, and the following screen appears.

Figure 169: Alarm Status Options

4. Click twice on the appropriate Status option, and the screen returns to the Alarm menu.
5. Click on TYPE and the following screen appears.

Figure 170: Alarm Type Options

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6. Click twice on Level... and the following screen appears.

Figure 171: Alarm (Fail-safe) Menu

7. Click on Units, and the following screen appears.

Figure 172: Alarm Channel Options

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5.9.3 Alarms Setup (cont.)

8. Click twice on the appropriate Channel, and the following screen appears.

Figure 173: Alarm Measurement Type Options

9. Click twice on the appropriate measurement type, and the following screen appears.

Figure 174: Alarm Measurement Unit Options

10. Click twice on the appropriate unit type, and the previous screen appears. Click on BACK twice to return to the
Alarm(FailSafe) menu.

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11. From the Alarm(FailSafe) menu, click on Trip Direction. The following screen appears.

Figure 175: Alarm Trip Direction Options

12. Click twice on the appropriate Trip Direction, and the screen returns to the Alarm(FailSafe) menu.
13. Click on Error Level, and the following screen appears.

Figure 176: Alarm Error Direction Options

14. Click twice on the appropriate Error Direction, and the screen returns to the Alarm(FailSafe) menu.

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5.9.3 Alarms Setup (cont.)

15. From the Alarm(FailSafe) menu, change the Trip Point and/or Dead Band text box readings (if required) and click
on BACK. Confirm the new entries by clicking Yes on the Verification screens.
16. To set up the alarm direction, from the Alarm Type Options menu (see Figure 170 on page 140), click twice on
Direction... The following screen appears.

Figure 177: Alarm Trip Direction Menu

17. Click on Units and the following screen appears.

Figure 178: Alarm Trip Direction Channel Options

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18. Click twice on the appropriate channel, and the screen returns to the Trip Direction menu. Click on BACK to return
to the Alarm Type Options menu.
19. From the Alarm Type Options menu, click twice on Fault..., and the following screen appears.

Figure 179: Alarm Fault Type Options

20. Click on Units, and the following screen appears.

Figure 180: Alarm Fault Channel Options

21. Click twice on the appropriate Channel, and the screen returns to the previous screen.

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5.9.3 Alarms Setup (cont.)

22. From the Alarm Fault Type Options screen, click twice on the appropriate type. If Flow, Non-Flow or All is
selected, the screen returns to the Alarm Type Options screen. If Custom... is selected, the following screen
appears.

Figure 181: Alarm Fault Custom Types

23. Wait a few seconds for the window text to clear, then click in the white box to the left of the each appropriate fault
type. A check mark appears after each click. To unselect a fault type, click on the specific check mark and the mark
disappears. When all selections have been made, click on BACK three times to return to the Alarm Menu.

Figure 182: Custom Types Selected

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24. From the Alarm Menu, click on Latch State and the following screen appears.

Figure 183: Alarm Latch Options

25. Click twice on Latch or No Latch, and the screen returns to the Alarm Menu. If a latch already exists and needs to
be removed, click on Clear Latch and the following screen appears.

Figure 184: Clear Alarm Latch Confirmation

26. Click twice on Yes to remove the latch, or No to keep the latch, and the screen returns to Alarm Latch Options. Use
the BACK key to return to the IO (Input/Output) menu.

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5.9.4 Slot 1 Setup

5.9.4a Analog Input Card
1. From the IO (Input/Output) menu, click on Slot 1. The following screen appears.

Figure 185: Slot 1 Options

2. Assign an Option Card to Slot 1 by clicking twice on the appropriate item. If an analog input card was selected, the
following screen appears.

Figure 186: Analog Input Menu

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3. To change the card label, enter the new name into the text box, click on BACK, and click Yes on the Verification
screen to complete the choice.
4. Click on Mode, and the following screen appears.

Figure 187: Analog Input Measurement Options

5. Choose the appropriate Measurement option and click on it twice. If Off is selected, the Measurement is turned
off, and the screen returns to the Analog Input Card Menu. If Temperature... is selected, the following screen
appears.

Figure 188: Temperature Menu

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5.9.4a Analog Input Card (cont.)

6. Click on Units, and the following screen appears.

Figure 189: Temperature Unit Options

7. Click twice on the appropriate Unit, and the screen returns to the Temperature Menu.
8. If the BASE and/or SPAN temperature needs to be changed, enter the measurement into the text box, click on BACK,
and confirm the change by clicking Yes on the Verification screen.
9. Return to the Analog Input Measurement Options menu, and repeat Steps 5 through 8 for Pressure... and
Density... Then click on BACK and return to the Analog Input menu.

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10. To calibrate the Analog Input, click on CAL, and the following screen appears.

Figure 190: Analog Input Calibration Options

11. Click twice on Trim Base..., and the following screen appears.

Figure 191: Calibration Confirmation

12. Click twice on Yes to confirm the calibration, or No to reject it. The screen returns to the Analog Input Calibration
Options screen.
13. Repeat Steps 11 and 12 for Trim Span... and Reset Trim... as needed.

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5.9.4b RTD Input Card

1. To assign a different Option Card to Slot 1, return to the Slot 1 Options screen and click twice on another option. If
an RTD input card was selected, the following screen appears.

Figure 192: RTD Input Menu

2. To change the card label, enter the new name into the text box, click on BACK, and click Yes on the Verification
screen to complete the choice.
3. Click on Mode, and the following screen appears.

Figure 193: RTD Input Measurement Options

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4. Choose the appropriate Measurement option and click on it twice. If Off is selected, the Measurement is turned
off, and the screen returns to the RTD Input Card Menu. If Temperature... is selected, the following screen appears.

Figure 194: Temperature Menu

5. Click on Units, and the following screen appears.

Figure 195: Temperature Unit Options

6. Click twice on the appropriate Unit, and the screen returns to the Temperature Menu.

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5.9.4b RTD Input Card (cont.)

7. To calibrate the RTD Input, click on CAL, and the following screen appears.

Figure 196: RTD Input Calibration Options

8. Enter the Set Pt or Offset temperature into each text box, click on BACK, and confirm the value by clicking Yes on
the Verification screen. Click on BACK to return to the RTD Input Menu.
9. Click on Reset Table and the following screen appears.

Figure 197: Reset Table Confirmation

10. Click Yes twice to confirm the resets, or No to reject them. The screen returns to the RTD Input Menu.

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5.9.5 Slot 2 Setup

Use the same procedure to set up Slot 2 as was used for Slot 1, beginning on page 148.

5.10 Display Menu

5.10.1 Views Setup
1. Click twice on Display Menu and the following screen appears.

Figure 198: Display Menu

2. Click on Views and the following screen appears.

Figure 199: Views Options

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5.10.1a One View

3. Click twice on either 1 View... or 2 Views... If 1 View... is selected, the following screen appears.

Figure 200: View 1 Setup

4. Click on View #1 and the following screen appears.

Figure 201: View 1 Setup Menu

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5. Click on Channel and the following screen appears.

Figure 202: Channel Options

6. Click twice on the appropriate Channel, and the screen returns to the View 1 Setup Menu.
7. Click on Publisher, and the following screen appears.

Figure 203: Publisher Options

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5.10.1a One View (cont.)

8. Click twice on the appropriate Publisher, and the following screen appears.

Figure 204: Publisher Unit Options

9. Click twice on the appropriate Unit, and click on BACK to return to the View 1 Setup Menu.
10. Click on Format, and the following screen appears.

Figure 205: Format Menu

11. Enter the appropriate number into each text box, click on BACK, and confirm the value by clicking Yes on the
Verification screen. Click on BACK to return to the previous screen.

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5.10.1b Two Views

• If two views are required, return to the Display Menu, select 2 Views..., and proceed as in One View, beginning on
page 156.

5.10.2 Contrast and Backlight

• On the Display Menu, to adjust the Contrast and/or Backlight, enter a number into each text box, click somewhere
outside the boxes, and confirm the value by clicking Yes on the Verification screen.

5.10.3 Display Mode Setup

1. On the Display Menu, click on Mode, and the following screen appears.

Figure 206: Display Mode Options

2. Click twice on the appropriate Mode, and the screen returns to the Display Menu.

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5.11 Calibrate Menu

1. To set up the input/output calibration, click twice on Cal Menu, and the following screen appears.

Figure 207: Calibrate Menu

2. Click twice on 4-20 Loop... and the following screen appears.

Figure 208: 4-20 Loop Setup Menu

3. To change Base Trim, Scan Trim or Percent values, enter the appropriate number into the text box, click on BACK,
and confirm the value by clicking Yes on the Verification screen.

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4. To select a loop mode, click on Mode, and the following screen appears.

Figure 209: 4-20 Loop Mode Options

5. Click twice on the appropriate option, and the screen returns to the previous menu. Click on BACK to return to the
Calibrate Menu. Exit the original Cal Menu by clicking the X in the upper right-hand corner of the screen.

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5.12 User Menu

5.12.1 Edit Passcodes
1. To provide security by limiting those with access to the meter programming setup, click twice on User Menu. The
following screen appears.

Figure 210: User Setup Menu

2. Click on Edit Passcodes to specify those passcodes with access. The following screen appears.

Figure 211: Edit Passcodes Menu

3. To enter a user passcode, type the appropriate text into the text box, click on BACK, and confirm the value by
clicking Yes on the Verification screen. When finished, click on BACK to return to the User Setup Menu.

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5.12.2 Set Security

1. To change the Security Timeout, type the appropriate number of minutes into the text box, click on BACK, and
confirm the value by clicking Yes on the Verification screen.
2. Click on Set Security and the following screen appears.

Figure 212: Security Level Options

Click twice on the appropriate level of security, and the screen returns to the User Setup Menu. Exit the User Setup
Menu by clicking the X in the upper right-hand corner of the screen.

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5.13 Factory Menu

1. Click twice on Factory Menu, and the following screen appears.

Figure 213: Factory Menu

5.13.1 Checking Versions

1. To check the unit’s version information, click on Versions, and the following screen appears.

Figure 214: Version Options

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2. Click twice on Main... and the following screen appears. Click on BACK to return to the previous screen.

Figure 215: Main Version Information

3. Click twice on Option Cards... and the following screen appears.

Figure 216: Option Cards Version Information

4. Click twice on BACK to return to the FACTORY menu.

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5.13.2 Confirming Meters

5. Click on Default Meter and the following screen appears.

Figure 217: Confirm Default Meter

6. To confirm the Default Meter, click twice on Yes. To not confirm, click twice on No. The screen returns to the
Factory Menu.
7. Click on Upgrade and the following screen appears.

Figure 218: Confirm Upgraded Meter

8. To confirm the Upgrade Meter, click twice on Yes. To not confirm, click twice on No. The screen returns to the
Factory Menu.

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5.13.2 Confirming Meters (cont.)

9. From the Factory Menu, to change the Tag (name) or the Assy Temp value, enter the appropriate number into the
text box, click outside the box, and confirm the value by clicking Yes on the Verification screen.
10. Exit the Factory Menu by clicking the X in the upper right-hand corner of the screen.

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Chapter 6. MODBUS Communications

6.1 Introduction
The Sentinel LNG supports digital communications using the MODBUS/RTU protocol, with 2-wire RS-485 or 3-wire
RS-232C as the physical layer. Data rate can be specified from 4800 to 19200 bits per second (bps), with selectable
parity.

6.2 Setting Up MODBUS Communications

1. To set up MODBUS Communications, from the main screen, use the arrow keys to scroll to [CONFIG]. Select
Communication and press ENTER, select Modbus and press ENTER. Nine options appear.
2. Address: To change the MODBUS address, use the arrow keys to select Address and press [ENT]. Use the arrow
keys to change the address number, and press [ENT] to save the change, or [ESC] to reject it. The screen returns to
the CONFIG menu.
3. Interface: To set the interface to be used, from the CONFIG menu select Interface and press [ENT]. Two options
appear: RS232 and RS485. Use the arrow keys to select the appropriate interface, and press [ENT]. The screen
returns to the CONFIG menu.
4. WordOrder: To set the word order, from the CONFIG menu select WordOrder and press [ENT]. Two options
appear: LowWordFirst and HighWord First. Use the arrow keys to select the appropriate order, and press [ENT].
The screen returns to the CONFIG menu.
5. Baud Rate: To set the baud rate, from the CONFIG menu select Baud Rate and press [ENT]. Three options appear:
4800, 9600 and 19200. Use the arrow keys to select the appropriate option, and press [ENT]. The screen returns to
the CONFIG menu.
6. Parity: To set the parity, from the CONFIG menu select Parity and press [ENT]. Three options appear: None, Even
and Odd. Use the arrow keys to select the appropriate option, and press [ENT]. The screen returns to the CONFIG
menu.
7. Volumetric: To set the volumetric measurement, from the CONFIG menu select Volumetric and press [ENT].
Twelve options appear. Use the arrow keys to select the appropriate measurement type, and press [ENT]. The screen
returns to the CONFIG menu.
8. Total Units: To set the total units measurement, from the CONFIG menu select Total Units, and press [ENT]. Four
options appear: M3, Liters, Hectare-cm and Hectare-m. Use the arrow keys to select the appropriate measurement
type, and press [ENT]. The screen returns to the CONFIG menu.
9. StdVolumetric: To set the standard volumetric measurement, from the CONFIG menu select StdVolumetric and
press [ENT]. Twelve options appear. Use the arrow keys to select the appropriate measurement type, and press
[ENT]. The screen returns to the CONFIG menu.
10. StdTotal Units: To set the standard total units measurement, from the CONFIG menu select StdTotal Units, and
press [ENT]. Four options appear: M3, Liters, Hectare-cm and Hectare-m. Use the arrow keys to select the
appropriate measurement type, and press [ENT]. The screen returns to the CONFIG menu.
Modbus Communications are now set up and ready to use. Proceed to the following pages.

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Note: Regarding meter status, each bit field indicates the error number from LSB corresponding to E1, and from
MSB corresponding to E32.

Note: Writing any non-zero value will clear the totals (unless they are locked using TOT LOCK/KEY LOCK switches on
the front panel - per MID requirements).

Note: Writing to COMP will clear all channels.

Note: The Modbus Register Map, Table 12 on page 171, has some fields highlighted in BLUE. These are currently
not supported and will return a value of –1.0.

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Table 12: Modbus Register Map

Composite Channel 1 Channel 2 Channel 3 Channel 4
Register Register Register Register Register
Category Measurement Type Size Format Address Address Address Address Address
Velocity F 2 LSW float 1 0x0000 1025 0x0400 2049 0x0800 3073 0x0C00 4097 0x1000
Volumetric F 2 LSW float 3 0x0002 1027 0x0402 2051 0x0802 3075 0x0C02 4099 0x1002
Primary
Measurand Std Volumetric F 2 LSW float 5 0x0004 1029 0x0404 2053 0x0804 3077 0x0C04 4101 0x1004
Mass Flow F 2 LSW float 7 0x0006 1031 0x0406 2055 0x0806 3079 0x0C06 4103 0x1006
Energy Rate F 2 LSW float 9 0x0008 1033 0x0408 2057 0x0808 3081 0x0C08 4105 0x1008
Soundspeed F 2 LSW float 11 0x000A 1035 0x040A 2059 0x080A 3073 0x0C00 4097 0x1000
Transit Up Transit F 2 LSW float 13 0x000C 1037 0x040C 2061 0x080C 3075 0x0C02 4099 0x1002
Time Dn Transit F 2 LSW float 15 0x000E 1039 0x040E 2063 0x080E 3077 0x0C04 4101 0x1004
DeltaT F 2 LSW float 17 0x0010 1041 0x0410 2065 0x0810 3079 0x0C06 4103 0x1006
UP Sig Strength F 2 LSW float 19 0x0012 1043 0x0412 2049 0x0812 3091 0x0C12 4115 0x1012
DN Sig Strength F 2 LSW float 21 0x0014 1045 0x0414 2051 0x0814 3093 0x0C14 4117 0x1014
Gain Up[dB] F 2 LSW float 23 0x0016 1047 0x0416 2053 0x0816 3095 0x0C16 4119 0x1016
Gain Dn[dB] F 2 LSW float 25 0x0018 1049 0x0418 2055 0x0818 3097 0x0C18 4121 0x1018
Receiver
Diagnostics UP DAC F 2 Unsigned 27 0x001A 1051 0x041A 2057 0x081A 3099 0x0C1A 4123 0x101A
integer
DN DAC F 2 Unsigned 29 0x001C 1053 0x041C 2059 0x081C 3101 0x0C1C 4125 0x101C
integer
UP Amp Discrim F 2 LSW float 31 0x001E 1055 0x041E 2061 0x081E 3103 0x0C1E 4127 0x101E
DN Amp Discrim F 2 LSW float 33 0x0020 1057 0x0420 2063 0x0820 3105 0x0C20 4129 0x1020
PEAK% F 2 LSW float 35 0x0022 1059 0x0422 2083 0x0822 3107 0x0C22 4131 0x1022
UP Signal Q F 2 LSW float 37 0x0024 1061 0x0424 2085 0x0824 3109 0x0C24 4133 0x1024
DN Signal Q F 2 LSW float 39 0x0026 1063 0x0426 2087 0x0826 3111 0x0C26 4135 0x1026
Signal UP +– Peak F 2 LSW float 41 0x0028 1065 0x0428 2089 0x0828 3113 0x0C28 4137 0x1028
Processing DN +– Peak F 2 LSW float 43 0x002A 1067 0x042A 2091 0x082A 3115 0x0C2A 4139 0x102A
Diagnostics
UP Norm Factor F 2 LSW float 45 0x002C 1069 0x042C 2093 0x082C 3117 0x0C2C 4141 0x102C
DN Norm Factor F 2 LSW float 47 0x002E 1071 0x042E 2095 0x082E 3119 0x0C2E 4143 0x102E
Theta 3 F 2 LSW float 49 0x0030 1073 0x0430 2097 0x0830 3121 0x0C30 4145 0x1030
CEE1 F 2 LSW float 51 0x0032 1075 0x0432 2099 0x0832 3123 0x0C32 4147 0x1032
Reynolds # F 2 LSW float 53 0x0034 1077 0x0434 2101 0x0834 3125 0x0C34 4149 0x1034
K(RE) F 2 LSW float 55 0x0036 1079 0x0436 2103 0x0836 3127 0x0C36 4151 0x1036
Correction CTL1 F 2 LSW float 57 0x0038 1081 0x0438 2105 0x0838 3129 0x0C38 4153 0x1038
Factors
CPL2 F 2 LSW float 59 0x003A 1083 0x043A 2107 0x083A 3131 0x0C3A 4155 0x103A
CTPL3 F 2 LSW float 61 0x003C 1085 0x043C 2109 0x083C 3133 0x0C3C 4157 0x103C
1
Correction factor for the effect of Temperature on the Liquid.
2Correction factor for the effect of Pressure on the Liquid.
3
Correction factor for the effects of Temperature and Pressure on the Liquid, a.k.a. “full VCF,” is product of CTL and CPL.

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Table 12: Modbus Register Map

Composite Channel 1 Channel 2 Channel 3 Channel 4
Register Register Register Register Register
Category Measurement Type Size Format Address Address Address Address Address
Supply Temp F 2 LSW float 63 0x003E 1087 0x043E 2111 0x083E 3125 0x0C3E 4159 0x103E
Return Temp F 2 LSW float 65 0x0040 1089 0x0440 2113 0x0840 3127 0x0C40 4161 0x1040
Temperature Supply-Rtn F 2 LSW float 67 0x0042 1091 0x0442 2115 0x0842 3129 0x0C42 4163 0x1042
Inputs
Supply Dens F 2 LSW float 69 0x0044 1093 0x0444 2117 0x0844 3141 0x0C44 4165 0x1044
Return Dens F 2 LSW float 71 0x0046 1095 0x0446 2119 0x0846 3143 0x0C46 4167 0x1046
Delta h F 2 LSW float 73 0x0048 1097 0x0448 2121 0x0848 3145 0x0C48 4169 0x1048
Pressure Pressure Input F 2 LSW float 75 0x004A 1099 0x044E 2123 0x084A 3147 0x0C4A 4171 0x104A
Inputs
Special Input 1 F 2 LSW float 77 0x004C 1101 0x044C 2125 0x084C 3149 0x0C4C 4173 0x104C
Special Input 2 F 2 LSW float 79 0x004E 1103 0x044E 2127 0x084E 3151 0x0C4E 4175 0x104E
Special
Inputs Special Input 3 F 2 LSW float 81 0x0050 1105 0x0450 2129 0x0850 3153 0x0C50 4177 0x1050
Special Input 4 F 2 LSW float 83 0x0052 1107 0x0452 2131 0x0852 3155 0x0C52 4179 0x1052
FWD Total D 4 LSW double 129 0x0080 1153 0X0480 2177 0X0880 3201 0X0C80 4225 0X1080
REV Total D 4 LSW float 133 0x0084 1157 0X0484 2181 0X0884 3205 0X0C84 4229 0X1084
FWD Mass D 4 LSW double 137 0x0088 1161 0X0488 2185 0X0888 3209 0X0C88 4233 0X1088
REV Mass D 4 LSW double 141 0x008C 1165 0X048C 2189 0X088C 3213 0X0C8C 4237 0X108C
FWD Energy D 4 LSW double 145 0x0090 1169 0X0490 2193 0X0890 3217 0X0C90 4241 0X1090
Flow Totals
REV Energy D 4 LSW double 149 0x0094 1173 0X0494 2197 0X0894 3221 0X0C94 4245 0X1094
Totl. Time D 4 LSW double 153 0x0098 1177 0X0498 2201 0X0898 3225 0X0C98 4249 0X1098
STD FWD Total D 4 LSW double 157 0x009C 1181 0X049C 2205 0X089C 3229 0X0C9C 4253 0X109C
STD REV Total D 4 LSW float 161 0x00A0 1185 0X04A0 2209 0X08A0 3233 0X0CA0 4257 0X10A0
STD Totl. Time D 4 LSW double 165 0x00A4 1189 0X04A4 2213 0X08A4 3237 0X0CA4 4261 0X10A4
FWD Total L 2 LSW double 257 0x0100 1281 0X0500 2305 0X0900 3329 0X0D00 4353 0X1100
Register 0
FWD Total L 2 LSW float 259 0x0102 1283 0X0502 2307 0X0902 3331 0X0D02 4355 0X1102
Register 1
FWD Total L 2 LSW float 261 0x0104 1285 0X0504 2309 0X0904 3333 0X0D04 4357 0X1104
Register 2
REV Total L 2 LSW float 263 0x0106 1287 0X0506 2311 0X0906 3335 0X0D06 4359 0X1106
Flow Totals
Register 0
(scientific
notation) REV Total L 2 LSW float 265 0x0108 1289 0X0508 2313 0X0908 3337 0X0D08 4361 0X1108
Register 1
REV Total L 2 LSW float 267 0x010A 1291 0X050A 2315 0X090A 3339 0X0D0A 4363 0X110A
Register 2
FWD Mass L 2 LSW double 269 0x010C 1293 0X050C 2317 0X090C 3341 0X0D0C 4365 0X110C
Register 0
FWD Mass L 2 LSW double 271 0x010E 1295 0X050E 2319 0X090E 3343 0X0D0E 4367 0X110E
Register 1

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Table 12: Modbus Register Map

Composite Channel 1 Channel 2 Channel 3 Channel 4
Register Register Register Register Register
Category Measurement Type Size Format Address Address Address Address Address
FWD Mass L 2 LSW double 273 0x0110 1297 0X0510 2321 0X0910 3345 0X0D10 4369 0X1110
Register 2
REV Mass L 2 LSW double 275 0x0112 1299 0x0512 2323 0x0912 3347 0x0D12 4371 0X1112
Register 0
REV Mass L 2 LSW double 277 0x0114 1301 0x0514 2325 0x0914 3349 0x0D14 4373 0X1114
Register 1
REV Mass L 2 LSW double 279 0x0116 1303 0x0516 2327 0x0916 3351 0x0D16 4375 0X1116
Register 2
FWD Energy L 2 LSW double 281 0x0118 1305 0x0518 2329 0x0918 3353 0x0D18 4377 0X1118
Register 0
FWD Energy L 2 LSW double 283 0x011A 1307 0x051A 2331 0x091A 3355 0x0D1A 4379 0X111A
Register 1
FWD Energy L 2 LSW double 285 0x011C 1309 0x051C 2333 0x091C 3357 0x0D1C 4381 0X111C
Register 2
REV Energy L 2 LSW double 287 0x011E 1311 0x051E 2335 0x091E 3359 0x0D1E 4383 0X111E
Register 0
REV Energy L 2 LSW double 289 0x0120 1313 0x0520 2337 0x0920 3361 0x0D20 4385 0X1120
Register 1
REV Energy L 2 LSW double 291 0x0122 1315 0x0522 2339 0x0922 3363 0x0D22 4387 0X1122
Flow Totals Register 2
(scientific
notation) Totl. Time days4 L 2 LSW double 293 0x0124 1317 0x0524 2341 0x0924 3365 0x0D24 4389 0X1124

Totl. Time L 2 LSW double 295 0x0126 1319 0x0526 2343 0x0926 3367 0x0D26 4391 0X1126
seconds
STD FWD Total L 2 LSW double 297 0x0128 1321 0x0528 2345 0x0928 3369 0x0D28 4393 0X1128
Register 0
STD FWD Total L 2 LSW float 299 0x012A 1323 0x052A 2347 0x092A 3371 0x0D2A 4395 0X112A
Register 1
STD FWD Total L 2 LSW float 301 0x012C 1325 0x052C 2349 0x092C 3373 0x0D2C 4397 0X112C
Register 2
STD REV Total L 2 LSW float 303 0x012E 1327 0x052E 2351 0x092E 3375 0x0D2E 4399 0X112E
Register 0
STD REV Total L 2 LSW float 305 0x0130 1329 0x0530 2353 0x0930 3377 0x0D30 4401 0X1130
Register 1
STD REV Total L 2 LSW float 307 0x0132 1331 0x0532 2355 0x0932 3379 0x0D32 4403 0X1132
Register 2
Std Totl. Time L 2 LSW double 309 0x0134 1333 0x0534 2357 0x0934 3381 0x0D34 4405 0X1134
days4
Std Totl. Time L 2 LSW double 311 0x0136 1335 0x0536 2359 0x0936 3383 0x0D36 4407 0X1136
seconds
41 day = 86,400 seconds

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Table 12: Modbus Register Map

Composite Channel 1 Channel 2 Channel 3 Channel 4
Register Register Register Register Register
Category Measurement Type Size Format Address Address Address Address Address
Meter 2 LSW
Error Code5 B unsigned 385 0x0180 1409 0x0580 2433 0x0980 3457 0x0D80 4481 0x1180
Status
long integer
Reset Totals6 I 1 Unsigned 513 0x0200 1537 0x0600 2561 0x0A00 3585 0x0E00 4609 0x1200
integer
Meter Reset Batch I 1 Unsigned 514 0x0201 1538 0x0601 2562 0x0A01 3586 0x0E01 4610 0x1201
Control Total integer
Error Code7 I 1 Unsigned 515 0x0202 1539 0x0602 2563 0x0A02 3587 0x0E02 4611 0x1202
integer
Word Order I 1 Unsigned 5121 0x1400
integer
Baud Rate I 1 Unsigned 5122 0x1401
integer
Parity I 1 Unsigned 5123 0x1402
Comm integer
Settings
Stop Bits I 1 Unsigned 5124 0x1403
integer
Meter Address I 1 Unsigned 5125 0x1404
integer
All Ones I 1 Unsigned 5126 0x1405
integer
5
Each of the 32 bits represents an error type.
6
Writing any non-zero value will clear totals (unless locked per MID requirements).
7Represented as integer value (i.e. E1, E2, E3, etc.)

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Chapter 7. HART Communications

7.1 Introduction
The Sentinel LNG generates a 4-20 mA analog output signal that enables two-way communication with a HART
communication device.

7.2 Wiring the HART Interface

1. Interconnect the HART interface and the HART device as shown in Figure 219 below.

HART Aout + Flowmeter

250 Terminal
Communications
ohms Board
Device Aout – Connector

+ –
24 Volt DC
Power
Supply

Figure 219: HART Wiring (Ext. Supply/Passive Mode)

HART Aout + Flowmeter

250 Terminal
Communications
ohms Board
Device Aout – Connector

Figure 220: HART Wiring (Int. Supply/Active Mode)

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7.3 Flowmeter Software Setup

Sentinel LNG’s require no special setup procedures by the user. The meter automatically configures itself for HART
communication on startup. The analog output must be on, and the mode must be set to the desired state. See [I/O],
analog output menu.

In addition to setting up the HART variables and configuration, the analog output may be configured using either of the
following methods (if available):

• the flowmeter keypad

• PanaView™ graphical user interface software

The choice of parameters must be limited to those listed in Table 14 on page 177. To use the HART device for
configuration of the analog output, refer to the instructions that came with that device.

Some flowmeter parameters can be read only by the HART device during startup. It is recommended that both the
flowmeter and the HART device be rebooted after any reprogramming of the HART parameters. Failure to do so may
result in erroneous information or a communication failure between the flowmeter and the HART device.

7.4 Product Interfaces

7.4.1 Process Interface
7.4.1a Sensor Input Channels
One to four pairs of acoustic transducers are connected to the device. Additionally, as many as three temperature,
pressure or density probes may be wired to the flowmeter. The temperature probe(s) can be either four-wire PT100
RTDs or, like the pressure sensors, 4-20 mA transmitters. Refer to the manuals for connection instructions.

7.4.1b Actuator Output Channels

No Sentinel LNG outputs are designated exclusively as external process-control actuators.

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7.4.2 Host Interface

7.4.2a Analog Output
The Sentinel LNG is equipped with a single 4-20 mA output, which can be configured using software to supply 24-volt
power internally (active), or to regulate current from an external source (passive). When set to either mode it will
support the HART communication channel.
Table 13: Analog Output Linear Over Range
Values
Direction (percent of range) Values (ma or V)
Down –0.6% ± 1.0% 3.89 to 3.92mA
Linear Over-Range
Up +105.0% ± 1.0% 20.64 to 20.96mA
Device Malfunction Down: less than –1.0% 3.84mA
Indication Up: greater than +110.0% 21.6mA
Maximum Current +112.5% 22.0mA
Multi-Drop Current Draw 4.0mA
Lift-Off Voltage 4.5V

7.5 Device Variables

The quantity and complexity of flow rates, secondary measurements and diagnostics in the list precludes elaboration
within the FDS. Refer to Chapter 3, Operation, for more information about each parameter. All Sentinel LNG Device
Variable Codes are tabulated in Table 14 below.
Table 14: Device Variable Codes
Device Variable Code Device Variable
Decimal (Hex) Classification Code
Measurement Comp Ch. 1 Ch. 2 Ch. 3 Ch. 4 Code Classification
Velocity 0 (00) 48 (30) 96 (60) 144 (90) 192 (C0) 67 Velocity
Volumetric 1 (01) 49 (31) 97 (61) 145 (91) 193 (C1) 66 Volumetric Flow
FWD Total 2 (02) 50 (32) 98 (62) 146 (92) 194 (C2) 68 Volume (FWD)
REV Total 3 (03) 51 (33) 99 (63) 147 (93) 195 (C3) 68 Volume (REV)
Totl. Time 4 (04) 52 (34) 100 (64) 148 (94) 196 (C4) 70 Time
Mass Flow 5 (05) 53 (35) 101 (65) 149 (95) 197 (C5) 72 Mass Flow
FWD Mass 6 (06) 54 (36) 102 (66) 150 (96) 198 (C6) 71 Mass (FWD)
REV Mass 7 (07) 55 (37) 103 (67) 151 (97) 199 (C7) 71 Mass (REV)
EnergyRate 8 (08) 56 (38) 104 (68) 152 (98) 200 (C8) 79 Power
FWD Energy 9 (09) 57 (39) 105 (69) 153 (99) 201 (C9) 77 Energy (FWD)
REV Energy 10 (0A 58 (3A) 106 (6A) 154 (9A) 202 (CA) 77 Energy (REV)
Reynolds # 11 (0B) 59 (3B) 107 (6B) 155 (9B) 203 (CB) 0 Not Classified
K(RE) 12 (0C) 60 (3C) 108 (6C) 156 (9C) 204 (CC) 0 Not Classified
CTL 13 (0D) 61 (3D) 109 (6D) 157 (9D) 205 (CD) 0 Not Classified

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Table 14: Device Variable Codes

Device Variable Code Device Variable
Decimal (Hex) Classification Code
Measurement Comp Ch. 1 Ch. 2 Ch. 3 Ch. 4 Code Classification
CPL 14 (0E) 62 (3E) 110 (6E) 158 (9E) 206 (CE) 0 Not Classified
CTPL 15 (0F) 63 (3F) 111 (6F) 159 (9F) 207 (CF) 0 Not Classified
Soundspeed 16 (10) 64 (40) 112 (70) 160 (A0) 208 (D0) 67 Velocity
Up Transit 17 (11) 65 (41) 113 (71) 161 (A1) 209 (D1) 70 Time
Dn Transit 18 (12) 66 (42) 114 (72) 162 (A2) 210 (D2) 70 Time
DeltaT 19 (13) 67 (43) 115 (73) 163 (A3) 211 (D3) 70 Time
Gain Up[dB] 20 (14) 68 (44) 116 (74) 164 (A4) 212 (D4) 0 Not Classified
Gain Dn[db] 21 (15) 69 (45) 117 (75) 165 (A5) 213 (D5) 0 Not Classified
Up Sig Strength 22 (16) 70 (46) 118 (76) 166 (A6) 214 (D6) 0 Not Classified
DN Sig Strength 23 (17) 71 (47) 119 (77) 167 (A7) 215 (D7) 0 Not Classified
UP DAC 24 (18) 72 (48) 120 (78) 168 (A8) 216 (D8) 0 Not Classified
DN DAC 25 (19) 73 (49) 121 (79) 169 (A9) 217 (D9) 0 Not Classified
UP Amp Discrim 26 (1A) 74 (4A) 122 (7A) 170 (AA) 218 (DA) 0 Not Classified
DN Amp Discrim 27 (1B) 75 (4B) 123 (7B) 171 (AB) 219 (DB) 0 Not Classified
Peak% 28 (1C) 76 (4C) 124 (7C) 172 (AC) 220 (DC) 81 Analytical
UP Signal Q 29 (1D) 77 (4D) 125 (7D) 173 (AD) 221 (DD) 0 Not Classified
DN Signal Q 30 (1E) 78 (4E) 126 (7E) 174 (AE) 222 (DE) 0 Not Classified
UP +– Peak 31 (1F) 79 (4F) 127 (7F) 175 (AF) 223 (DF) 0 Not Classified
DN +– Peak 32 (20) 80 (50) 128 (80) 176 (B0) 224 (E0) 0 Not Classified
UP Norm Factor 33 (21) 81 (51) 129 (81) 177 (B1) 225 (E1) 0 Not Classified
DN Norm Factor 34 (22) 82 (52) 130 (82) 178 (B2) 226 (E2) 0 Not Classified
Theta 3 35 (23) 83 (53) 131 (83) 179 (B3) 227 (E3) 0 Not Classified
CEE1 36 (24) 84 (54) 132 (84) 180 (B4) 228 (E4) 67 Velocity
Supply Temp 37 (25) 85 (55) 133 (85) 181 (B5) 229 (E5) 64 Temperature
Return Temp 38 (26) 86 (56) 134 (86) 182 (B6) 230 (E6) 64 Temperature
Supply-Rtn 39 (27) 87 (57) 135 (87) 183 (B7) 231 (E7) 0 Not Classified
Supply Dens 40 (28) 88 (58) 136 (88) 184 (B8) 232 (E8) 0 Not Classified
Return Dens 41 (29) 89 (59) 137 (89) 185 (B9) 233 (E9) 0 Not Classified
Delta h 42 (2A) 90 (5A) 138 (8A) 186 (BA) 234 (EA) 0 Not Classified
Pressure Input 43 (2B) 91 (5B) 139 (8B) 187 (BB) 235 (EB) 65 Pressure
Special Input 1 44 (2C) 92 (5C) 140 (8C) 188 (BC) 236 (EC) 0 Not Classified
Special Input 2 45 (2D) 93 (5D) 141 (8D) 189 (BD) 237 (ED) 0 Not Classified
Special Input 3 46 (2E) 94 (5E) 142 (8E) 190 (BE) 238 (EE) 0 Not Classified
Special Input 4 47 (2F) 95 (5F) 143 (8F) 191 (BF) 239 (EF) 0 Not Classified

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7.5 Device Variables (cont.)

The available device variable codes that can currently be published are tabulated in Table 15 below.

The Device Variable Family Code for all measurements is 250, "Not Used." Device variable numbers and unit types are
listed in this section.

Selectable Unit Types are restricted in such a way that each Variable Class can use only a single unit at a time. For
instance, if a Volumetric Flow variable unit is changed, all subsequent Volumetric Flow variables will switch to that
unit. This keeps forward and reverse internal Sentinel LNG units in sync with the HART variable type.

Table 15: Publishable Device Variables

Device Variable Code Device Variable
Decimal (Hex) Classification Code
Measurement Comp Ch. 1 Ch. 2 Ch. 3 Ch. 4 Code Classification
Velocity 0 (00) 48 (30) 96 (60) 144 (90) 192 (C0) 67 Velocity
Volumetric 1 (01) 49 (31) 97 (61) 145 (91) 193 (C1) 66 Volumetric Flow
FWD Total 2 (02) 50 (32) 98 (62) 146 (92) 194 (C2) 68 Volume (FWD)
REV Total 3 (03) 51 (33) 99 (63) 147 (93) 195 (C3) 68 Volume (REV)
Totl. Time 4 (04) 52 (34) 100 (64) 148 (94) 196 (C4) 70 Time
Mass Flow 72 Mass Flow
FWD Mass 71 Mass (FWD)
REV Mass 71 Mass (REV)
EnergyRate 79 Power
FWD Energy 77 Energy (FWD)
REV Energy 77 Energy (REV)
Reynolds # 59 (3B) 107 (6B) 155 (9B) 203 (CB) 0 Not Classified
K(RE) 60 (3C) 108 (6C) 156 (9C) 204 (CC) 0 Not Classified
CTL 13 (0D) 0 Not Classified
CPL 14 (0E) 0 Not Classified
CTPL 15 (0F) 0 Not Classified
Soundspeed 16 (10) 64 (40) 112 (70) 160 (A0) 208 (D0) 67 Velocity
Up Transit 65 (41) 113 (71) 161 (A1) 209 (D1) 70 Time
Dn Transit 66 (42) 114 (72) 162 (A2) 210 (D2) 70 Time
DeltaT 67 (43) 115 (73) 163 (A3) 211 (D3) 70 Time
Gain Up[dB] 68 (44) 116 (74) 164 (A4) 212 (D4) 0 Not Classified
Gain Dn[db] 69 (45) 117 (75) 165 (A5) 213 (D5) 0 Not Classified
Up Sig Strength 70 (46) 118 (76) 166 (A6) 214 (D6) 0 Not Classified
DN Sig Strength 71 (47) 119 (77) 167 (A7) 215 (D7) 0 Not Classified
UP DAC 72 (48) 120 (78) 168 (A8) 216 (D8) 0 Not Classified
DN DAC 73 (49) 121 (79) 169 (A9) 217 (D9) 0 Not Classified

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Table 15: Publishable Device Variables

Device Variable Code Device Variable
Decimal (Hex) Classification Code
Measurement Comp Ch. 1 Ch. 2 Ch. 3 Ch. 4 Code Classification
UP Amp Discrim 74 (4A) 122 (7A) 170 (AA) 218 (DA) 0 Not Classified
DN Amp Discrim 75 (4B) 123 (7B) 171 (AB) 219 (DB) 0 Not Classified
Peak% 76 (4C) 124 (7C) 172 (AC) 220 (DC) 81 Analytical
UP Signal Q 77 (4D) 125 (7D) 173 (AD) 221 (DD) 0 Not Classified
DN Signal Q 78 (4E) 126 (7E) 174 (AE) 222 (DE) 0 Not Classified
UP +– Peak 79 (4F) 127 (7F) 175 (AF) 223 (DF) 0 Not Classified
DN +– Peak 80 (50) 128 (80) 176 (B0) 224 (E0) 0 Not Classified
UP Norm Factor 81 (51) 129 (81) 177 (B1) 225 (E1) 0 Not Classified
DN Norm Factor 0 Not Classified
Theta 3 0 Not Classified
CEE1 67 Velocity
Supply Temp 37 (25) 85 (55) 133 (85) 181 (B5) 229 (E5) 64 Temperature
Return Temp 64 Temperature
Supply-Rtn 0 Not Classified
Supply Dens 40 (28) 88 (58) 136 (88) 184 (B8) 232 (E8) 0 Not Classified
Return Dens 0 Not Classified
Delta h 0 Not Classified
Pressure Input 43 (2B) 91 (5B) 139 (8B) 187 (BB) 235 (EB) 65 Pressure
Special Input 1 0 Not Classified
Special Input 2 0 Not Classified
Special Input 3 0 Not Classified
Special Input 4 0 Not Classified

When optional API Correction is installed, the Composite Volumetric and Volume variables are mapped to standard
units. The supported units are referenced in section 11. Individual channel volumetric flowrate and volume units
remain actual units.

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7.6 Dynamic Variables

Only certain device variables can be published and are listed in Table 15 above. More publishable variables may be
added as the capabilities are added to the meter. Only the device variables listed in Table 15 may be assigned as
primary, secondary, tertiary or quaternary variables (PV, SV, TV and QV). Certain diagnostic variables have units
specific to that diagnostic. Refer to the Sentinel LNG for details on the use of diagnostic variables indicated by the
variable class specified as "Not Classified."

7.7 Status Information

7.7.1 Device Status
Bit 4 ("More Status Available") is set whenever any failure is detected. Command #48 furnishes specific information
about the failure. Refer to Section Error! Reference source not found., to the Sentinel LNG User’s Manual and to
Common Tables Specification Table 17. Due to the large number of device variables, the Non-Primary Variable Out of
Limits flag bit, Table 12, section 7.4.3 HCF_SPEC-99, is never set. Instead, monitor the Extended Device Status to
determine overall device variable status.

Bit 1 ("Non-Primary variable out of limits") is set only when any of the SV, TV or QV variables are out of their
respective limits. This bit is not set for variables not mapped to the SV, TV or QV.

7.7.2 Extended Device Status

Extended Device Code 0x01, Maintenance Required, is never set by the Sentinel LNG.

Code 0x02, Device Variable Alert, is set if the meter is in an alarm or warning state. Because of the complexity of
meter configuration and flow computation, the SEN898 may not set Device Variable Status indicators to identify
specific Device Variables as the cause of the alert. Refer to the manual for information about "flow" and "non-flow"
errors.

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7.7.3 Additional Device Status

Command 48 returns four data bytes. Error bits are cleared only when the cause is rectified. Refer to the service manual
for troubleshooting information. Table 16 below shows the error bits and associated SEN898 error condition.

Table 16: Error Codes and Status Bits

HART Additional Sentinel LNG Device Status
Device Status Meaning Sentinel LNG Error Condition Class Bits Set
Byte Bit – – – –
– – E0 No Error – good
0 0 E1 Low Signal Flow error 4&7
0 1 E2 Soundspeed Flow error 4&7
0 2 E3 Velocity/Range Flow error 4&7
0 3 E4 Signal Quality Flow error 4&7
0 4 E5 Amplitude Flow error 4&7
0 5 E6 Cycle Skip Flow error 4&7
0 6 E7 Analog Output IO warning 4&1
0 7 E8 Supply Temperature IO warning 4
1 0 E9 Return Temperature IO warning 4
1 1 E10 not used – – –
1 2 E11 not used – – –
1 3 E12 not used – – –
1 4 E13 Tracking AGC Settled
1 5 E14 Tracking Seek Mode Flow HP error 4&7
1 6 E15 Active TW Flow Lp warning 4
1 7 E16 Totalizer IO warning 4
2 0 E17 Temperature Input IO warning 4
2 1 E18 Pressure Input IO warning 4
2 2 E19 Density Input IO warning 4
2 3 E20 Special Input IO warning 4
2 4 E21 API Correction Flow LP warning 4
2 5 E22 Degraded Performance Flow LP warning 4
– – – – – – –
3 4 E29 Stale Data Flow error 4&7
3 5 E30 Channel Off Flow error 4&7
– – – – – – –

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7.8 Universal Commands

All universal commands are implemented per the HART Universal Command Specification (HCF_SPEC-127, rev.
6.0).

The transducer serial number is not relevant to flowmeters, so a zero is returned in the first two data bytes of Command
14, Read Primary Variable Transducer Information.

7.9 Common-Practice Commands

7.9.1 Supported Common Practice Commands
Table 17: Common Practice Commands
Number Function
33 Read Device Variables
34 Write Primary Variable Damping Value
35 Write Primary Variable Range Values
36 Set Primary Variable Upper Range Value
37 Set Primary Variable Lower Range Value
38 Reset Configuration Changed Flag
40 Enter/Exit Fixed Current Mode
41 Perform Self Test - restricted
42 Perform Device Reset
43 Set Primary Variable Zero
44 Write Primary Variable Units
45 Trim Loop Current Zero
46 Trim Loop Current Gain
48 Read Additional Device Status
49 Write Primary Variable Transducer Serial Number
50 Read Dynamic Variable Assignments
51 Write Dynamic Variable Assignments
52 Set Device Variable Zero
53 Write Device Variable Units
54 Read Device Variable Information
55 Write Device Damping Value
59 Write Number of Response Preambles
72 Squawk

7.9.1a Command 34 and 55 Damping Value

The variable damping value is fixed and not programmable.

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7.9.1b Command 35 Units Restriction

Command 35 does not allow range to be set with units other than the current publishing units. If the units do not match
the selected Primary Variable units, the response "Invalid Selection" is returned. The meter does not provide the
capability to convert values between units in Command 35.

7.9.1c Command 41 Perform Self Test

Due to the complex nature of the SEN898SEN898 meter, the self-test mode is Restricted. However, the device status is
constantly monitored and Command 48, Read Additional Device Status, should be used to determine the current state
of the meter.

7.9.1d Command 43 Set Primary Variable Zero

Only the Totals variable can be set to Zero with this command. Any other variable that is not a Forward or Reverse
Total will return Invalid Selection.

7.9.1e Command 72 Squawk Command

The Squawk function, command 72, causes the LCD backlight to flash.

7.9.1f Command 52 Set Device Variable Zero

This is the same as the Device Specific command 181: Clear Totals, if the variable specified is a Totals variable. Any
totals variable specified with this command will affect all totals variables. This command does not affect variables that
are not a Totals variable. Invalid selection is returned for non-totals variables.

7.9.2 Burst Mode Commands

The Sentinel LNG does not support burst mode.

7.9.3 Catch Device Variable Command

The Sentinel LNG does not support the catch device variable mechanism.

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7.10 Device-Specific Commands

A single device specific command is implemented, Clear Totals.

7.10.1 Command 181 (0xB5): Clear Totals

The Clear Totals command resets the accrued values for volume, mass and energy that have flowed through the meter.
The timer associated with the trio of totals is also set back to zero. All totalizers resume aggregating flow immediately
after the command is executed.

The effect of this command is equivalent to Command 52, Set Variable Zero, if the command 52 device variable
specified is a Totals variable, it will clear all totals.

Note: The function is global. Sentinel LNG can be configured to use individual transducer pairs, or channels, to
measure flow in separate pipes. The clear totals command will reset the volume, mass, energy and time for
every channel.

Table 18: Device Specific Command 181 - Clear Totals

Byte Format Description
Request Data Bytes None
Response Data Bytes None

Code Class Description

0 Success No Command-Specific Errors
Command-Specific 1-6 Undefined
Response Codes 7 Error In Write Protect Mode
8-127 Undefined

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7.11 Tables
7.11.1 HART Engineering Units
The unit types allowed for Sentinel LNG device variables in Error! Reference source not found, shown in Section
Error! Reference source not found, are listed below. Unit types for device variables in Error! Reference source not
found are shown, but only units from Publishable variables are listed. As publishable device variables are added, so
with the corresponding units.

7.11.1a Velocity
Table 19: Velocity
Class Variable
Code Classification Unit Code Unit Description
67 Velocity 20 feet per second
21 meters per second

7.11.1b Volumetric Flow

Table 20: Volumetric Flow
Class Variable
Code Classification Unit Code Unit Description
66 Volumetric Flow 130 cubic feet per hour
15 cubic feet per minute
26 cubic feet per second
19 cubic meters per hour
131 cubic meters per minute
28 cubic meters per second
136 gallons per hour
16 gallons per minute
22 gallons per second
23 million gallons per day
135 barrels per day
134 barrels per hour
132 barrels per second
138 liters per hour
17 liters per minute
24 liters per second
25 million liters per day

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7.11.1c Standard Volumetric Flow

Table 21: Standard Volumetric Flow
Class Variable
Code Classification Unit Code Unit Description
66 Volumetric Flow 185 Standard cubic feet per hour
123 Standard cubic feet per minute
186 Standard cubic feet per second
184 Standard cubic feet per day
187 Standard cubic meters per day
188 Standard cubic meters per hour
189 Standard cubic meters per minute
190 Standard cubic meters per second
178 Standard liters per hour
179 Standard liters per minute
180 Standard liters per second
177 Standard liters per day

7.11.1d Volume
Table 22: Volume
Class Variable
Code Classification Unit Code Unit Description
68 Volume (FWD) 112 cubic feet
68 Volume (REV) 43 cubic meters
40 gallons
41 liters
46 barrels

7.11.1e Standard Volume

Table 23: Standard Volume
Class Variable
Code Classification Unit Code Unit Description
68 Volume (FWD) 168 Standard cubic feet
68 Volume (REV) 172 Standard cubic meters
171 Standard liters

7.11.1f Mass Flow

Table 24: Mass Flow
Class Variable
Code Classification Unit Code Unit Description
72 Mass Flow

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7.11.1g Mass
Table 25: Standard Volume
Class Variable
Code Classification Unit Code Unit Description
71 Mass (FWD)
71 Mass (REV)

7.11.1h Power
Table 26: Power
Class Variable
Code Classification Unit Code Unit Description
79 Power

7.11.1i Energy
Table 27: Energy
Class Variable
Code Classification Unit Code Unit Description
77 Energy (FWD)
77 Energy (REV)

7.11.1j Time
Table 28: Time
Class Variable
Code Classification Unit Code Unit Description
79 Power

7.11.1k Temperature
Table 29: Temperature
Class Variable
Code Classification Unit Code Unit Description
64 Temperature 32 Degrees Celsius
33 Degrees Fahrenheit
34 Degrees Rankine
35 Kelvin

7.11.1l Analytical
Table 30: Analytical
Class Variable
Code Classification Unit Code Unit Description
81 Analytical 57 Percent

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7.12 Performance
7.12.1 Sampling Rate
All flow rates are updated at least 10 times per second. Auxiliary inputs, like pressure and temperature probes used to
refine flow calculations, are also updated at least 10 times per second.

7.12.2 Power-Up
The Sentinel LNG requires approximately 15 to 60 seconds to boot after it is energized, depending on whether the
non-volatile memory is being restored from default. No HART requests are processed during initiation. The analog
output will default to 4mA until the primary variable is available.

7.12.3 Device Reset

The Sentinel LNG reset performance is identical to Power-Up, described in the preceding section. The meter will
always exit fixed-current mode before resuming operation.

7.12.4 Self-Test
The meter responds to the self-test request, but performs no additional diagnostic functions. (The meter tests for errors
and reports them after each measurement cycle.) Support for command 41 is included to facilitate future
implementation.

7.12.5 Command Response Delay

Table 31: Slave Response Time
Minimum 1ms
Typical 20ms
Maximum 256ms

7.12.6 Busy and Delayed Response

The Sentinel LNG never transmits a busy response code when replying to a command. The delayed response
mechanism is not implemented.

7.12.7 Long Messages

The data field in Command 21, Read Unique Identifier Associated with Long Tag, is the largest that the Sentinel LNG
will receive. The message contains 32 characters (bytes). The reply to Command 21 contains the largest data field sent
by the Sentinel LNG, 18 bytes (including the two status bytes).

7.12.8 Non-Volatile Memory

The meter uses nonvolatile memory to store the configuration parameters. Flow totals are also periodically cached to
preserve data in case power is interrupted.

7.12.9 Operating Modes

Fixed current mode is implemented using Command 40. This mode is cleared by power loss or reset.

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7.12.10 Write Protection

The meter contains two write protect switches.

7.12.11 Write Protect Switch

The write protect switch activates the write protect mode and will generate "In Write Protect" response when active. An
LED will be lit when the write protect switch is active.

7.12.12 Totals Protect Switch

The Totals Protect switch is used to ensure conformity to the Measuring Instruments Directive (MID). The meter totals
cannot be reset when the meter is restricted via the Totals Protect switch. An LED is lit when the Totals Protect Switch
is active.

7.13 Capability Checklist

Table 32: Capability Checklist
Manufacturer, model and revision GE Sensing Sentinel LNG flowmeter, Rev. 1.0
Device type Transmitter
HART revision 6.3
Device Description available No
1 to 4 pairs of acoustic transducers,
Number and type of sensors 0 to 4 temperature or pressure sensors (for
flow correction)
Number and type of actuators 0
One 4-20mA analog output,
Number and type of host side signals
two optional frequency/totalizer outputs
Number of Device Variables 240
Number of Dynamic Variables 4
Mappable Dynamic Variables? Yes
Number of common-practice commands 22
Number of device-specific commands 1
Bits of additional device status 32
Alternative operating modes? No
Burst mode? No
Write-protection? Yes

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7.14 Default Configuration

Table 33: Default Configuration
Parameter Default Value
Device variable mapped to PV Average velocity
Lower Range Value 0
Upper Range Value 100
PV Units Feet per second
Damping time constant NaN (not a number)
Total lock Off (i.e., reset is enabled)
Number of response preambles 5

Refer to Chapter 3, Operation, for more information about factory default settings for the Sentinel LNG.

7.15 Revision History

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 Chapter 8. Maintenance

Chapter 8. Maintenance
8.1 Calibration
In the CALIB menu, the user can calibrate and trim the analog output and inputs and check other meter functions. This
chapter also covers updating Sentinel LNG software over the RS232 interface.

Before performing calibration of the Sentinel LNG, be sure the following equipment is available:

• Current meter capable of precisely measuring 4 to 20 mA current levels

• PC with RS232 Cable and Hyperterminal software (available on Windows operating systems)
While following the programming instructions, refer to Figure 236 on page 221.

8.1.1 Updating Sentinel LNG Instrument Software

1. To set up the RS232, connect one end of a 9-pin RS232 cable to the COM-1 serial port on a PC and the other end to
Com Port I/O on terminal block TB2 on the Sentinel LNG, as described in Chapter 2, Installation.
WARNING! Use RS232 connections in Non-Hazardous areas only.
Note: The RS232 cable connection is not limited to the COM-1 serial port of the PC. Connect the RS232 cable to any
available RS232 serial port on the PC, and follow the same instructions as for the COM-1 port.

2. On your PC, set up the Hyperterminal program.

Note: The use of Hyperterminal is shown here as an example. If you are using a different communications software,
see its manual for detailed instructions.

a. From the PC Start Menu, click Programs/Accessories/Communications/Hyperterminal to open the

Hyperterminal window.

b. If the call is not connected, click on New Connection and enter a name. Click OK.

c. In the Connect To window, select COM 1 as the desired port.

d. In the Properties window, set the following parameters:

• Bits per second: 115200
• Data bits: 8
• Parity: None.
• Stop Bits: 1
• Flow control: None

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8.1.1 Updating Sentinel LNG Instrument Software (cont.)

3. From the Sentinel LNG FACTORY menu, scroll to the Upgrade option and press [ENT] twice. The Sentinel LNG
screen should appear as in Figure 221 after approximately one minute, or

Power on the Sentinel LNG, and enter ESC-R from the PC keyboard. The Sentinel LNG screen should appear as in
Figure 221.

Figure 221: Sentinel LNG Screen

The Hyperterminal window on your PC should appear as follows:

Figure 222: PC Load Request Window

Press CTRL-X on the PC keyboard to abort the process, or continue as follows to send the file.

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4. In Hyperterminal, select Transfer, and then Send File. (The protocol should be Xmodem.) Use Browse to locate the
file, which will have a .sim extension. Double click on this file and click the Send button. The screens on the
Sentinel LNG (Figure 223) and on Hyperterminal (Figure 224) should both display the status of the transfer.

Figure 223: Sentinel LNG Transfer Status Window

Figure 224: PC Transfer Status Window

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8.1.1 Updating Sentinel LNG Instrument Software (cont.)

5. To ensure the Sentinel LNG operates correctly, GE recommends defaulting the meter after software updates. From
the Sentinel LNG Factory Menu, scroll to Default Meter and press [ENT]. Press the up arrow key [] and press
[ENT] twice, or at power on, press and hold the [CLR-TOT] key until the following screen appears after several
seconds. Release the key. Press the up arrow key [] to default the meter, or the down arrow key [] to cancel the
default.

Figure 225: Default Meter? Screen

Note: After the Sentinel LNG has been defaulted, it restarts in the locked mode. See page 40 for instructions on
unlocking the meter.

6. To check that the software has been loaded correctly, proceed to the next section.

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8.1.2 Checking the Meter Software

1. Turn power on. The display should boot up with a typical cycling procedure.
2. To verify which version of software has been loaded:
a. Press [ESC] to enter the User Program.

b. Press the [] key until FACTORY is highlighted. Scroll to the Versions option and press [ENT].

c. Press [ENT] again to enter Main. The display should appear similar to the screen below.

Figure 226: Software Verification Screen

8.1.2a Checking Option Card Version Information

To verify which option card version has been loaded:

1. Press [ESC] to enter the User Program.

2. Press the [] key until FACTORY is highlighted. Scroll to the Versions option and press [ENT].
3. Press [ENT] again to enter Option Cards. The display should appear similar to the screen below.

Figure 227: Option Card Verification Screen

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8.1.3 Trimming 4-20 mA Using the Keypad

1. In the User Program, scroll to CAL with 4-20 Loop highlighted. Press [ENT].
2. Scroll to Mode and press [ENT]. In the Mode window, scroll to Test[Trim] and press [ENT].
3. Return to the Loop window, and scroll to Percent.
4. In the Percent window, use the arrow keys to set the percentage to 100%. Press [ENT]. Record the value shown on
the current meter.
5. Now use the arrow keys to set the percentage to 0%. Press [ENT]. Record the value shown on the current meter.
6. Return to the Loop window, and scroll to Base Trim. Press [ENT].
7. Use the arrow keys to enter the base trim value, the value recorded in step 5. (The loop current should now be the
same as the current meter. It should read 4.0 +/-0.01 mA.) Press [ENT].
8. Repeat steps 3 and 4.
9. Return to the Loop window, and scroll to Span Trim. Press [ENT].
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10. Use the arrow keys to enter the span trim value, the value recorded in step 4. (The loop current should now be the
same as the current meter. It should read 20.0 +/-0.01 mA.) Press [ENT].
11. Return to the Loop window, and scroll to Mode. Press [ENT]. Scroll to Normal, and press [ENT].
Note: The difference between “Test” and “Test [TRIM]” is that “Test” is the raw output current without the trim
applied. “Test [TRIM]” is the output current with trim applied.

8.2 Spare Parts

The Sentinel LNG is a high-accuracy calibrated flowmeter. Local custody transfer requirements may disallow field
replacement of any parts in this flow metering system without a proper calibration of the entire system at an approved
calibration facility. Check with local authorities to determine if field replacement of parts is allowed.

If fault is found with the the flowmeter electronics, the entire measurement head can be replaced to ensure hardware
and firmware compatibility. The replacement part number will be as shown in Sentinel Electronics SEN898 on page 12
of this manual. To ensure that the correct part number is ordered, provide your local GE Sensing representative with the
serial number of the meter, located as shown on the Name and Specification Plate on page 5.

If it is determined that a flow transducer has been damaged or is faulty, it may also be replaced in the field. Please
consult the factory for the appropriate part number.

8.3 Installing Replacement Parts

The Sentinel LNG is a high-accuracy calibrated flowmeter. Local custody transfer requirements may disallow field
replacement of any parts of this flow metering system without a proper calibration of the entire system at an approved
calibration facility. Check with local authorities to determine if field replacement of parts is allowed.

If it is appropriate to replace any component of the flow metering system, the GE Sensing field service team is trained
and equipped to perform the replacement on-site. Installation of these field replaceable parts by a GE Sensing field
service team member will maintain the accuracy of the system and any applicable warranty. Please consult the factory
to order the appropriate components and to schedule installation in the field.

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 Chapter 9. Troubleshooting

Chapter 9. Troubleshooting
9.1 Introduction
The Sentinel LNG flow transmitter is a reliable, easy to maintain instrument. When properly installed and operated, as
described in Chapter 2, Installation, the meter provides accurate flow rate measurements with minimal user
intervention. However, if a problem should arise with the electronics enclosure or transducers, this chapter explains
how to troubleshoot the Sentinel LNG. Indications of a possible problem include:

• display of an error message on the LCD screen

• erratic flow readings

• readings of doubtful accuracy (i.e., readings that are not consistent with readings from another flow measuring
device connected to the same process).
If any of the above conditions occur, proceed with the instructions presented in this chapter.

Note: For high electrical noise areas, it is recommended to use the CE Installation methods in Appendix B.

9.2 Error Codes

If a problem occurs with the electronics or transducers, a built-in error code message system greatly simplifies the
troubleshooting process.

All of the possible Sentinel LNG error code messages are discussed in this chapter, along with the possible causes and
the recommended actions. When an error code is generated, it will appear in the lower right corner of the LCD screen,
as discussed in Chapter 3.

If an error message appears on the display screen during operation of the Sentinel LNG, refer to the appropriate section
of this chapter for instructions on how to proceed. You may be asked to consult the factory. It would be very helpful to
capture all of the diagnostic data and parameter information for each channel on the Data Records in Appendix C prior
to calling your local sales or service center.

9.2.1 E0: No Error

Problem: No error condition currently exists.
Cause: This message appears briefly to confirm that the response to another error message has corrected the
problem.
Action: No action is required.
9.2.2 E1: Low Signal
Problem: Poor ultrasonic signal strength or the signal exceeds the limits entered via the User Program.
Cause: Poor signal strength may be caused by a defective cable, a flowcell problem, a defective transducer or a
problem in the electronics console. A signal that exceeds the programmed limits is probably caused by the
entry of an improper value in the Error Limits option of the User Program.
Action: Using the procedures in Chapter 1, check the components listed above. Also, check the value entered into
the Signal Strength Error Limits option, as described on page 46.

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9.2.3 E2: Soundspeed Error

Problem: The soundspeed exceeds the limits programmed in the Error Limits option of the User Program.

Cause: The error may be caused by incorrect programming, poor flow conditions or poor transducer orientation.

Action: Compare the measured soundspeed to tabulated nominal values for the process fluid and correct any
programming errors. Refer to the sections on Fluid and Pipe Problems (page 205) and Transducer
Problems (page 206) to correct any problems.

9.2.4 E3: Velocity Range Error

Problem: The velocity exceeds the limits programmed in the Error Limits option of the User Program.

Cause: This error may be caused by the entry of improper programming data or by poor flow conditions and/or
excessive turbulence.

Action: Make sure the actual flow rate is within the programmed limits. Also, check the value entered into the
Error Limits option, as described on page 46. Refer to the sections on Fluid and Pipe Problems (page 205)
and on Transducer Problems (page 206) to correct any problems. If this error persists, and no fluid or pipe
problems appear to exist, consider enabling the Tracking Windows option.

9.2.5 E4: Signal Quality Error

Problem: The signal quality is outside the limits programmed in the Error Limits option of the User Program.

Cause: The peak of the upstream or downstream correlation signals has fallen below the correlation peak limit, as
set in the Error Limits option on page 46. This may be caused by a flowcell or electrical problem.

Action: Consult the factory.

9.2.6 E5: Amplitude Error

Problem: The signal amplitude exceeds the limits programmed in the Error Limits option of the User Program.

Cause: Solid or liquid particulates may be present in the flowcell. The error could also be caused by poor coupling
for clamp-on transducers.

Action: Consult the factory.

9.2.7 E6: Cycle Skip, Acceleration Error

Problem: The acceleration exceeds the limits programmed in the Error Limits option of the User Program.

Cause: This condition is usually caused by erratic flow conditions.

Action: Consult the factory.

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9.2.8 E7: Analog Output Error

Problem: The current setting is outside the programmed limits.

Cause: The calculated output value exceeds the programmed limits.

Action: Verify that the 4-20 loop configuration base and span settings are correct for the process. Re-range the
output if necessary.

9.2.9 E13: Settle Tracking AGC

Problem: The meter is not finding the signal where it is expected.

Cause: The pipe may be empty or actual sound speed is outside of programmed range.

Action: Verify the fluid sound speed settings and fluid type.

9.2.10 E14: Tracking Seek Mode

Problem: The signal is intermittent.

Cause: Discontinuities in fluid characteristics such as multi-phase flow, flashing, pockets of gas, or rapidly
changing fluid type make it difficult for the meter to lock in on the signal.

Action: Check the process conditions. If thermal insulation is present, ensure an even application to mitigate hot or
cold spots.

9.2.11 E15: Active Tw Error

Problem: The active Tw measurement is outside of the expected range.

Cause: A transducer or cable is damaged, or a transducer needs to be recoupled.

Action: Ensure that the correct transducer is programmed for the meter. If this is not the fault, consult the factory.

9.2.12 E16: Totalizer Overflow Error

Problem: The totalizers are unable to keep up with the total accumulated flow signals.

Cause: The programmed units/pulse value is too small.

Action: Select a larger number of units/pulse value.

9.2.13 E17: Temperature Input Error

Problem: This message indicates a temperature input error.

Cause: The temperature exceeds the specified limits for the analog/RTD inputs, or no input device is connected.

Action: Check the temperature transmitter and the connecting cable. Recalibrate the analog/RTD inputs.

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9.2.14 E18: Pressure Input Error

Problem: This message indicates a pressure input error.

Cause: The pressure exceeds the specified limits for the analog inputs, or no input device is connected.

Action: Check the pressure transmitter and the connecting cable. Recalibrate the analog input.

9.2.15 E19: Density Input Error

Problem: This message indicates a density input error.

Cause: The density exceeds the specified limits for the analog inputs, or no input device is connected.

Action: Check the density input device and the connecting cable. Recalibrate the analog input.

9.2.16 E20: Special Input Error

Problem: This message indicates a special input error.

Cause: The special input exceeds the specified limits for the analog inputs, or no input device is connected.

Action: Check the input device and the connecting cable. Recalibrate the analog input.

9.2.17 E21: API Error

Problem: This message indicates an error in the API calculations.

Cause: The combination of pressure, temperature, density, and/or flow inputs causes the calculation to not
properly resolve.

Action: The specific API error can be found in the API Info section of the meter's program.

9.2.18 E22: Degraded Performance Error

Problem: The accuracy of the measurement is degraded.

Cause: A loss of one inner and/or outer chord measurement results in the sister inner/outer chord's measurement to
be substituted, to provide a flow measurement with degraded accuracy.

Action: Consult the factory.

9.2.19 E30: Channel Disabled

Problem: The channel is not available.

Cause: The channel has been turned off.

Action: Enter the PROGRAM menu and enable the channel (see Activating a Channel/Path (Status) on page 43).

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9.3 Displaying Diagnostic Parameters

The Sentinel LNG offers built-in Diagnostic Parameters to aid in the troubleshooting of transducer and/or electrical
problems. To access these parameters, do the following:

1. From the display screen, press [ESC].

Note: If the display screen is locked, you will need to enter [ESC], [ENT], [ESC] and the security code. Refer to
Unlocking and Locking the Sentinel LNG on page 40 for details.

2. Press the [] key. The screen will highlight the channel you wish to check. Be sure the desired channel appears on
the screen (or change it, as discussed in Chapter 3).
3. Press the [] key to scroll to the measurement entry in the upper right. Press [ENT]. Be sure Diagnostic is
highlighted, and press [ENT].
4. Press the [] key twice to access the units parameter. Press [ENT]. Scroll to the desired Diagnostic unit (as
described in Table 34 on page 204) and press [ENT].
5. If desired, repeat steps 1-4 for the other channel.

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Table 34: Available Diagnostic Parameters

Option Bar Description Good Bad
Displays the transit time difference between the upstream and
Delta-T[ns]
downstream signals.
1 nsec >1 nsec

Displays the value for the signal amplitude of the upstream

Amp Up 24 ± 5 <19 or >29
transducer.
Displays the value for the signal amplitude of the downstream
Amp Dn 24 ± 5 <19 or >29
transducer.
T Up [µs] Displays upstream ultrasonic signal transit time. N.A. N.A.
T Dn [µs] Displays downstream ultrasonic signal transit time. N.A. N.A.
Gain Up [dB] Displays upstream gain in dB. N.A. N.A.
Gain Dn [dB] Displays downstream gain in dB. N.A. N.A.
Signal Up Displays signal strength for the upstream transducer. 50-75 <50 or >75
Signal Dn Displays signal strength for the downstream transducer. 50-75 <50 or >75
Displays the value at which Sentinel LNG detects signal arrival
Thresh Up [%] -100 - +100 <-100 or >100
time for the upstream transducer.
Displays value at which Sentinel LNG detects signal arrival time for
Thresh Dn [%] -100 - +100 <-100 or >100
the downstream transducer.
Norm Factor Displays the normalization factor. 0.85 - 1.0 <0.85
P# Up Displays signal peaks for upstream transducer. 100-924 <100 or >924
P# Dn Displays signal peaks for downstream transducer. 100-924 <100 or >924
Quality Up Displays signal quality for upstream transducer.  1200 –400 to +400
Quality Down Displays signal quality for downstream transducer.  1200 –400 to +400
Reynolds # Displays the Reynolds number. N.A. N.A.
k(Re) K factor, based on the Reynolds number. N.A. N.A.
Cycle Time [ms] Time for the reading cycle to complete. N.A. N.A.
KFactor Meter K calibration factor 0.5-2.0 <0.5 or >2.0
0<Programmed >Programmed
#Errors Number of errors present.
Error Limit Error Limit

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9.4 Fluid and Pipe Problems

If preliminary troubleshooting with the Error Code Messages and/or the Diagnostic Parameters indicates a possible
problem, proceed with this section. Measurement problems fall into two categories:

• fluid problems

• pipe problems.
Read the following sections carefully to determine if the problem is indeed related to the fluid or the pipe. If the
instructions in this section fail to resolve the problem, contact the factory for assistance.

9.4.1 Fluid Problems

Most fluid-related problems result from a failure to observe the flowmeter system installation instructions, as described
in Chapter 2, Installation. Refer to Chapter 2 to correct any installation problems.

If the physical installation of the system meets the recommended specifications, it is possible that the fluid itself may
be preventing accurate flow rate measurements. The fluid being measured must meet the following requirements:

1. The fluid must be homogeneous, single-phase, relatively clean and flowing steadily.
Although a low level of entrained particles may have little effect on the operation of the Sentinel LNG, excessive
amounts of solid particles will absorb or disperse the ultrasound signals. This interference with the ultrasound
transmissions through the fluid will cause inaccurate flow rate measurements. In addition, temperature gradients in
the fluid flow may result in erratic or inaccurate flow rate readings.
2. The fluid must not cavitate near the measurement point.
Fluids with a high vapor pressure may cavitate near the measurement point. This causes problems resulting from
gas bubbles in the fluid. Cavitation can usually be controlled through proper system design.
3. The fluid must not excessively attenuate ultrasound signals.
Some fluids, particularly those that are very viscous, readily absorb ultrasound energy. In such a case, an E1 error
code message will appear on the display screen to indicate that the ultrasonic signal strength is insufficient for
reliable measurements.
4. The fluid soundspeed must not vary excessively.
The Sentinel LNG will tolerate relatively large changes in the fluid soundspeed, as may be caused by variations in
fluid composition and/or temperature. However, such changes must occur slowly. Rapid fluctuations in the fluid
soundspeed, to a value that is considerably different from that programmed into the Sentinel LNG, will result in
erratic or inaccurate flow rate readings.
Note: Refer to Chapter 3, Operation, to make sure that the appropriate soundspeed is programmed into the meter.

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9.4.2 Pipe Problems

Pipe-related problems may result from improper choice in meter location or errors in programming. The following may
result in problematic installations:

1. The collection of material at the transducer location(s).

Accumulated debris at the transducer location(s) will interfere with transmission of the ultrasound signals. Choose
an installation point for the meter where solid particles will not settle into the transducer ports. Refer to Chapter 2,
Installation, for more details on proper installation practices.
2. The inside of the pipe must be relatively clean.
Excessive build up of scale, rust or debris will change the inner dimensions of the pipe and will result in
inaccuracies in the calculation of the flow from the velocity measurement.

9.5 Transducer Problems

The Sentinel LNG transducers are rugged, reliable devices that do not come into contact with the process fluid. An
engineered epoxy with the appropriate physical and acoustic properties holds the transducer in place. If erratic or
inaccurate readings can be tracked to a problem with a transducer or transducers, or if one is physically damaged, the
GE Sensing field service team has the appropriate methods and tools to properly replace the transducer to maintain the
accuracy of your flow meter system. Consult your local representative to schedule this service.

9.5.1 Clamp-on Transducer Problems

In certain special applications, the SEN898 display package may be used with clamp-on transducers. This section
covers these applications.

1. INTERNAL DAMAGE: Ultrasonic transducers consist of a ceramic “crystal” bonded to the transducer case. The bond
between the crystal and the case may be damaged by extreme shock and by temperature extremes. The crystal itself
can also be damaged by the same conditions. The internal wiring can be corroded or shorted if contaminants enter
the transducer housing.
2. PHYSICAL DAMAGE: Transducers may be physically damaged by dropping them onto a hard surface or striking
them against another object.
IMPORTANT: Transducers must be replaced in pairs. Refer to Chapter 3, Operation, to program the new transducer
data into the meter.

3. CYCLE SKIP CONDITION: A cycle skip is usually caused by a distorted or altered signal due to unusual fluid
disturbances.
Contact the factory if you cannot solve a transducer-related problem.

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9.6 Audit Trail

The Sentinel LCT tracks all changes to the programming, meter status (power on, power off), error status, date/time
changes, etc.

9.6.1 Audit Log

The Sentinel LCT's Audit Log will record system activity to a human readable log and store it in persistent memory.
The activity types that generate a log entry include instances of:

• Power On/Reset

• Parameter Change

• Alarms

• Error

• Calibration Change

• Default Meter

The use of additional formatting allows for better readability. The meter can store up to 1000 audit and/or event
records. When the log becomes full, the new record will overwrite the oldest record in the Audit trail. This circular log
will enable the user to always view the last 1000 records. The audit log file is downloadable using PanaLink File
Reader software, and is not viewable from the meters display.

9.6.1a Power-On/Reset
The Audit log can be used to determine the meter start or reset time. The power-on is usually the first entry in the audit
log file unless it was overwritten (after 1000 entries).

9.6.1b Parameter Change

The audit log will monitor all parameters which may have an impact on the flow measurement and will record changes
to them with the following fields:

• Event/Record Number (Rec No.)

• Date (mm/dd/yyyy)

• Time (hh:mm:ss)

• Source

• Parameter Identification Number

• Parameter Name

• User Level- Authentication (Auth)

• Old Value

• New Value

Sentinel LNG User’s Manual 207

Chapter 9. Troubleshooting

9.6.1 Audit Log (cont.)

9.6.1c Alarms
The Audit log will monitor and record the alarms with following information:

• Event/Record Number

• Date (mm/dd/yyyy)

• Time (hh:mm:ss)

• Alarm ID

• Alarm Status

9.6.1d Error
The error event will be recorded in the audit log file whenever the meter switches from a “No Error” state to “Error”
state or vice versa. The Error record contains:

• Event/Record Number

• Date (mm/dd/yyyy)

• Time (hh:mm:ss)

• Error Source

• Error Number

• Previous Error

• Current Error

9.6.1e Calibration
Any calibration change needs to be notified to the user and is hence logged in the audit log file. For example, an option
card changed might affect the calibration in which case the following will form a record:

• Event/Record Number

• Date (mm/dd/yyyy)

• Time (hh:mm:ss)

• Slot Number

• Event Name (Option Card)

• Previous Card Type

• Current Card Type

208 Sentinel LNG User’s Manual

 Chapter 9. Troubleshooting

9.6.1f Default Meter

When a user defaults the meter (option enabled only for authenticated users, For Ex. Service) or a corruption that might
lead to meter parameters to be defaulted occurs, an event is logged. Following is the information logged.

• Event/Record Number

• Date (mm/dd/yyyy)

• Time (hh:mm:ss)

• Event Type (User requested or Corrupted)

9.6.2 Reading Audit Log Records

The Sentinel LCT meter log records are read using the PanaLink File Reader software provided.

The Audit log file will be saved to the root directory where the PanaLink File Reader application resides if the user
does not specify the full directory path in the “Save To Disc File”. On clicking the “Retrieve Data” button the Audit log
file residing in the meter can be read. To store the data in the specified file in the PC, click on the “Store Data” button.
A screen-shot of the PanaLink File Reader Application is provided below.

Meter Node Number File requested from Meter File to create and save in PC

Indicates the total Indicates the actual Retrieves the data Creates and saves
number of blocks number of blocks of from File in Meter retrieved data to the
of data to be read data read from the filename specified in
from the meter meter “SaveToDiscFile”

Figure 228: PanaLink File Reader

Sentinel LNG User’s Manual 209

Chapter 9. Troubleshooting

9.6.3 Formatting and Viewing Log Records

The log records have neatly formatted columns for easy and better readability. The record types mentioned in Audit
Log, beginning on page 207, may contain irrelevant (not applicable) column values that are represented with ‘---’ in the
corresponding column. The Audit log file contains the following columns:

Rec# Date Time Source ID Name Auth. Old New

1 12/11/2008 2:13:19 Meter --- Power --- --- Power-On
2 12/11/2008 2:13:22 --- 1 Alarm --- --- Tripped

For example, a parameter change will be logged in as shown below:

Rec# Date Time Source ID Parameter Name Auth. Old New

1 12/11/2008 5:11:58 1 25798 RxWWidth 0 1024 2048

The Audit log file is formatted such that the user has the flexibility of viewing or saving the log file as either a Text file
or a Microsoft Excel file. In order to get the full benefits of the Audit trail feature, we recommend using the Microsoft
Excel file. This option, however, is available only if Microsoft® Excel® 2000 or later is installed on the PC.

210 Sentinel LNG User’s Manual

 Chapter 9. Troubleshooting

9.7 Uncertainty in Flow Rate for a Non-Insulated Meter

Dimensional compensation considers the effect on the geometrical dimensions of the meter due to the material thermal
expansion or contraction. The fluid temperature inside of the meter is measured and used for this purpose. Under severe
ambient conditions, eg. –40°C in winter, the fluid temperature can be very different, by up to 10°C, from the actual wall
temperature. This will cause about a 0.04% error in the flow rate measured. The Figure 229 below indicates that the
errors increase as the temperature difference between the fluid and the ambient for both insulated and non-insulated
meters. For non-insulated meters at large temperature differences, the error is about one order higher than that for
insulated meters. Therefore for applications in severe weather conditions, it is recommended to insulate the meter to
ensure the meter accuracy.

0.05 Meter with insulation

SS306
Meter without insulation
SS306

0.04 Carbon Steel meter

A106 with insulation
Carbon Steel meter
A106 without insulation
Error in Flow Rate (%)

0.03

0.02

0.01

-0.01

-0.02
-40 -20 0 20 40 60 80 100 120
Temperature Difference between Fluid and Ambinent (deg C)
Figure 229: Example of Flow Error at Various Temperature Differences

Sentinel LNG User’s Manual 211

Chapter 9. Troubleshooting

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212 Sentinel LNG User’s Manual

Appendix A. Menu Maps
This appendix includes the following Sentinel LNG procedure formats:

• Figure 230: MFG and DEV Menu Map

• Figure 231: PROG Menu Map

• Figure 232: PROG Composite Menu Map

• Figure 233: CONFIG Menu Map

• Figure 234: IO Menu Map #1

• Figure 235: IO Menu Map #2

• Figure 236: DISP, CAL, USER, and FACTORY Menu Map

Sentinel LNG User’s Manual 213

Menu Maps

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214 Sentinel LNG User’s Manual

 Appendix A. Menu Maps

To PROG Menu Map

MFG DEV

Watchdog Keypad Test Display Test IO Test Flow Test DAC Flow Test Tx Flow Test Rx

DAC Count Tx Relay Rx Relay

Pass: Meter restarts Keys can be tested Four different display #
within 30 seconds. in any order. tests will be performed
Fail: Meter does

Figure 230: MFG and DEV Menu Map

NOT restart.
CH1 Flow Info CH2 Flow Info CH3 Flow Info CH4 Flow Info Flow Cal Info API Flow Info

API Option
Freq/Tot Test Alarm Test
Displays meter information.

Freq/Tot #1 Freq/Tot #2 Alarm #1 Alarm #2

Alarm State

Frequency Totalizer Trip Reset

Test Freq Drive Control Pulse Count Pulse Width Polarity Drive Control

...Hz ...# ...ms

Open Drain Push-Pull Positive Negative Open Drain Push-Pull

Sentinel LNG User’s Manual 215

 Appendix A. Menu Maps

To MPG and DEV Menu Map To PROG Composite Menu Map

PROG

Channel 1 Channel 2 Channel 3 Channel 4 Composite

See PROG Composite Menu Map

Status Transducer Fluid Path Signal K Factor Error Limits

ns #
Reynolds
On Off Clamp-On* Wetted # Off Single Table #
# #

Figure 231: PROG Menu Map

# #
K Factor
# #
Peak
*Engineering Menu only. Off Single Table
#
KV Threshold
#
#
Other Min Max Peak Pcnt
%
# #
#
#
Frequency Tw
# µs #
Other Batch Size
# # Units Rows Used Edit Table
Units Rows Used Edit Table
AUTO or # Bit #
#
Row #
Frequency Tw Wedge SS TempCo RxW Size Row Yes No
X Yes No
# µs # # # KV Velocity X
GainMode units Reynolds # KFactor

Auto
#
Manual
Meters/sec
...ms
Delay Time
...µs
Signal Up Signal Dn

Sentinel LNG User’s Manual 216

 Appendix A. Menu Maps

To PROG Menu Map To CONFIG Menu Map

PROG

Channel 1 Channel 2 Channel 3 Channel 4 Composite

Pipe Fluid Signal K Factor Inputs API Setup

Fluid Type ChannelX

Material Lining K Factor Path Ratio Weight

Figure 232: PROG Composite Menu Map

Material Table A Table B
Other Off Single Table Off Table
Yes or No Table C Table D
Value
OD #
WT #
Path Ratio Alpha # Rows Used Edit Table Reset Table
ODxPI #
Pipe Size Path Ratio Min # #
Thickness # Path Ratio Max # RowX
OD # X Reyn # Yes No 60° 20° 15°
WT # Other
AUTO, Off or On K Factor X°
ODxPI #
TxVoltage
Schedule** Pressure Density Observed
Units Rows Used Edit Table Reset Table Temp (alt)
**Appears only if one of the
following materials is selected: # Pres (alt)
Carbon Steel (all) Zero Interp RowX Fixed Active* Fixed Active*
Stainless (all) Spline or Sinc X Reyn # Fixed Fixed
Yes No Temp # Density #
Iron Cast Velocity Diagnostic K Factor #
Iron Ductile Fixed Active* Alternate
Plastic PVC Reynolds#
Active Tw Status Fixed Temp (obs)
Plastic CPVC
Active Tw Temp Change # Pressure # Pres (obs)
Active Tw Interval # *Menu appears only when Slot 1/2 is occupied. Dens (obs)
Normal Tracking
Active Tw Cycles #
Temperature Peak Pcnt %

Other Other
Sndspd # Min Sndspd #
Fluid Type Max Sndspd # On or Off X Point Correlation CHX UP
Optimized Correlation CHX DN

Sentinel LNG User’s Manual 217

 Appendix A. Menu Maps

To PROG Composite Menu Map To IO Menu Map

CONFIG

Units Communication Reset Totals Totalizer Errors

Metric English Panalink Modbus HART

Node ID

Interface Parity Stop Bits Data Bits Protocol

Figure 233: CONFIG Menu Map

#
RS232 RS485 None Even Odd

4800 9600 19200

#
38400 57600 115200 On Off
Address #
#
Yes No
Interface Parity
Units Units Units Units #

Tag
RS232 RS485 4800 9600 19200
#
Base
Span
None Even Odd #
Channel Unit
#

Sentinel LNG User’s Manual 218

 Appendix A. Menu Maps

To CONFIG Menu Map To IO Menu Map #2

IO

Analog Outputs Freq/Totals Alarms Slot 1 Slot 2

See IO Menu Map #2.

Status Channel Unit Mode

# #

Off On Passive Active

Status Mode Drive Ctl

Figure 234: IO Menu Map #1

Pressure Density

Off On Units Polarity

# #

Units Fbase Fspan

METER

Liter/sec Liter/min Liter/hr Test

Pressure Density
#
M3 Liters
°C K BAR KPA MMHG kg/m 3 kg/L API

Fine D-T Dac Up Dac Dn Amp Up Amp Dn T Up[µs] T Dn[µs]

Liter/sec Liter/min Liter/hr

kRe K Factor

Sentinel LNG User’s Manual 219

 Appendix A. Menu Maps

To IO Menu Map #1 To DISP, CAL, USER, FACTORY Menu Map

IO

To Analog Outputs and Freq/Totals

Alarms Slot 1 Slot 2 Note: Menu appears only

when Slot is occupied.

Alarm #1 Alarm #2
#A:Ain #B:Ain #C:Ain

Status TYPE Label Mode Cal Label Mode Cal

Figure 235: IO Menu Map #2

# #

Off Normal Level Fault Latch No Latch Off Temp Yes No

Set Pt1
Units* Units* Units* Flow All Yes No Yes No Yes No Yes No Offset 1
# # •
*See "Units" in **Refer to the •
*See "Units" in IO Menu Map #1 table below. Off Temp Density Set Pt5
IO Menu Map #1 (on previous page) Offset 5
(on previous page) to observe options.
to observe options.
Fault States of Alarm
Reset Trip Units Base Span
E1 Low Signal E15 Active Tw
# # #
E2 Soundspeed E16 Totalizer Overflow
E3 Velocity Range E17 Temperature Input
E4 Signal Quality E18 Pressure Input
E5 Amplitude E19 Density Input
E6 Cycle Skip, Acceleration E20 Special Input
E7 Analog Output E21 API Error
E13 Settle Tracking AGC E22 Degraded Performance
E14 Tracking Seek Mode E30 Channel Disabled

Sentinel LNG User’s Manual 220

 Appendix A. Menu Maps

To IO Menu Map

DISP CAL USER FACTORY

4-20 Loop
Views Contrast Mode Set Security Versions Default Meter Upgrade System Info Tag Assy Temp
% % # # #

1 View 2 Views Normal Reverse Admin Main Yes No

Figure 236: DISP, CAL, USER, and FACTORY Menu Map

#

View #1 View #1 View #2 Full Locked Display User1...User4 Yes No

Locked User Admin
Field Service
Percent Mode Factory
mA mA % Engineering
Channel Format

Test Normal

Date/Time NVM SD Card Modbus Panalink HART Option Card

UpTime Status Status Status Status Status Status

Pressure Density

Width Decimal Min Max

# # # #

Sentinel LNG User’s Manual 221

Appendix B. CE Mark Compliance and High Noise Areas
B.1 Introduction
For CE Mark compliance, the Sentinel LNG flow transmitter must meet the EMC and LVD directives.

IMPORTANT: CE Mark compliance is required only for units intended for use in EEC countries, and is recommended
for high electrical noise areas.

B.2 EMC Compliance

In addition to the standard wiring requirements, the electrical connections must be shielded and grounded as in
Table 36 below for EMC compliance. After all the necessary electrical connections have been made, seal any unused
cable entry holes.

Note: If the instructions in this appendix are followed, the unit will comply with the EMC Directive 2004/108/EC.

Table 36: Wiring Modifications

Connection Cable Type Termination Modification
Transducer Shielded cable Terminate the shield using the cable glands (already done).
Power Shielded cable Terminate the shield to the case using the cable glands.
Shielding Wires enclosed in a properly-grounded metal conduit do not require additional shielding.
All Input/Output Shielded cable Terminate the shield to the case.*
Options

Note: Make sure to connect the Sentinel LNG case to the earth ground with a grounding cable, using the external
ground screws found on either side of the enclosure

*Terminate the cable shields to the closest screw on the bus bar inside the enclosure.

Sentinel LNG User’s Manual 223

CE Mark Compliance and High Noise Areas

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224 Sentinel LNG User’s Manual

Appendix C. Data Records
C.1 Site Data
After the Sentinel LNG flow transmitter has been installed, specific site data must be entered via the User Program,
prior to operation. Record that information in Table 37 below.

Table 37: Site Data

General Information
Model # Serial #
Software Vers. Setup Date
Channelx-Status
Channel 1 Channel 2 (if applicable)
Channel Status Off 1
On Channel Status Off1 On
Channelx-Pipe Parameters
Channel 1 Channel 2 (if applicable)
Trans. Type Clamp-On Trans. Type Clamp-On
Transducer # Transducer #
Other Transducers Other Transducers
Wedge Temp Wedge Temp
Frequency (Hz) Frequency (Hz)
Tw (µs) Tw (µs)
Wedge Angle (°) Wedge Angle (°)
Wedge Sndspd Wedge Sndspd
Pipe Material Pipe Material
All Clamp-On Transducers All Clamp-On Transducers
Pipe O.D. Pipe O.D.
Pipe Wall Pipe Wall
Path Length (P) Path Length (P)
Axial Length (L) Axial Length (L)
Lining Yes No Lining Yes No
Lining Material Lining Material
Lining Sndspd Lining Sndspd
Lining Thickness Lining Thickness
Track. Window. Yes No Track. Window. Yes No
Fluid Type Fluid Type
Other/Sndspd Other/Sndspd
Reynolds Corr. Off Active Reynolds Corr. Off Active
KV Input Sel. Table Static KV Input Sel. Table Static
Kin. Visc. Kin. Visc.
Cal. Factor Cal. Factor
# of Traverses # of Traverses
Trans. Spacing Trans. Spacing

Sentinel LNG User’s Manual 225

Data Records

Table 37: Site Data

Channelx-Error Limits
Channel 1 Channel 2 (if applicable)
Min. Signal Min. Signal
Max. Signal Max. Signal
Min.Velocity Min.Velocity
Max. Velocity Max. Velocity
Min. Amplitude Min. Amplitude
Max. Amplitude Max. Amplitude
Soundspeed Soundspeed
Acceleration Acceleration
Channelx-Signal
Channel 1 Channel 2 (if applicable)
Delta T Offset Delta T Offset
Zero Cutoff [no content intended for thisCutoff
Zero page]
# of Errors # of Errors
Detection Peak Threshold Detection Peak Threshold
Min. Thresh% N/A Min. Thresh% N/A
Max. Thresh% N/A Max. Thresh% N/A
Xmit Sam. Size N/A Xmit Sam. Size N/A
Vel. Averaging Vel. Averaging
Global-CONFIG
System Units English Metric Node ID
4/20 Units Baud Rate
4/20 Base Parity
4/20 Span Stop Bits
Error Level Data Bits
Channelx-Display
Channel 1 Channel 2 (if applicable)
Vol. Units Vol. Units
Totalizer Units Totalizer Units
Channelx- KFACTOR Table
K-Factor Table K-Factor Table
Channel 1 Channel 2 (if applicable)
K-Factor Row # Velocity K Factor K-Factor Row # Velocity K Factor
1 1
2 2
3 3
4 4
5 5
6 6
7 7

226 Sentinel LNG User’s Manual

 Table 37: Site Data
Channelx- KFACTOR Table (cont.)
8 8
9 9
10 10
11 11
12 12
13 13
14 14
15 15
16 16
17 17
18 18
19 19
20 20
Channelx- Reynolds Number Table
Channel 1 Channel 2 (if applicable)
Reynolds Row # Units kRe K-Factor Row # Units kRe
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 10
11 11
12 12
13 13
14 14
15 15
16 16
17 17
18 18
19 19
20 20

Sentinel LNG User’s Manual 227

Data Records

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228 Sentinel LNG User’s Manual

Appendix D. Service Record
D.1 Introduction
Whenever any service procedure is performed on the Sentinel LNG flow transmitter, the details of the service should
be recorded in this appendix. An accurate service history of the meter can prove very helpful in troubleshooting any
future problems.

D.2 Data Entry

Record complete and detailed service data for the Sentinel LNG in Table 38 below. Make additional copies of the table
as needed.
Table 38: Service Record
Date Description of Service Performed By

Sentinel LNG User’s Manual 229

 Table 38: Service Record (cont.)
Date Description of Service Performed By

230 Sentinel LNG User’s Manual

D.3 Diagnostic Parameters
After a successful initial installation of the Sentinel LCT and whenever any system malfunction is noticed, the values
for the diagnostic parameters should be entered in Table 39 below.

Table 39: Diagnostic Parameters

Channel 1 Channel 2 Channel 3 Channel 4
Parameter Value Parameter Value Parameter Value Parameter Value
Velocity Velocity Velocity Velocity
Delta-T Delta-T Delta-T Delta-T
SOS SOS SOS SOS
SS Up/Dn SS Up/Dn SS Up/Dn SS Up/Dn
P# Up/Dn P# Up/Dn P# Up/Dn P# Up/Dn
Q Up/Dn Q Up/Dn Q Up/Dn Q Up/Dn
T Up/Dn T Up/Dn T Up/Dn T Up/Dn
Gain Up/Dn Gain Up/Dn Gain Up/Dn Gain Up/Dn
Amp Up/Dn Amp Up/Dn Amp Up/Dn Amp Up/Dn
Threshold Threshold Threshold Threshold
Up/Dn Up/Dn Up/Dn Up/Dn

All of this information can be found on the Flow Info pages inder the DEV Menu, Modbus or by using Panaview.

Sentinel LNG User’s Manual 231

Service Record

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232 Sentinel LNG User’s Manual

 Index

A D
Acceleration Data Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Degraded Performance Error, E22 . . . . . . . . . . . . . 202
Acceleration Error, E6 . . . . . . . . . . . . . . . . . . . . . . 200 Delta T Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Active Tw Error, E15 . . . . . . . . . . . . . . . . . . . . . . . 201 Density Input Error, E19 . . . . . . . . . . . . . . . . . . . . 202
Advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 DEV Menu Map . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Alarm Relay, Fail-Safe Operation . . . . . . . . . . . . . . . 25 Diagnostic Parameters
Amplitude Available Options . . . . . . . . . . . . . . . . . . . . . . . 204
Maximum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Displaying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Minimum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Diagnostics
Amplitude Error, E5 . . . . . . . . . . . . . . . . . . . . . . . 200 Service Record . . . . . . . . . . . . . . . . . . . . . . . . . 229
Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Table of Values . . . . . . . . . . . . . . . . . . . . . . . . . 231
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 DISP Menu Map . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . 26 Display
Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41, 42
Analog Output Error, E7 . . . . . . . . . . . . . . . . . . . . 201 Unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Analog Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 E
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Electrical Connections
API Error, E21 . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 CE Mark Compliance . . . . . . . . . . . . . . . . . . . . . 223
Assembly, System . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 See Wiring
Audit Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207 Error
Formatting and Viewing Records . . . . . . . . . . . . 210 Limits, Entering . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Reading Records . . . . . . . . . . . . . . . . . . . . . . . . 209 Error Code
Audit Trail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207 E0, No Error . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
C E1, Low Signal . . . . . . . . . . . . . . . . . . . . . . . . . 199
CAL Menu Map . . . . . . . . . . . . . . . . . . . . . . . . . . 222 E13, Settle Tracking AGC . . . . . . . . . . . . . . . . . 201
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 E14, Tracking Seek Mode. . . . . . . . . . . . . . . . . . 201
CE Mark Compliance . . . . . . . . . . . . . . . . . . . . . . 223 E15, Active Tw Error . . . . . . . . . . . . . . . . . . . . . 201
Channel Disabled, E30. . . . . . . . . . . . . . . . . . . . . . 202 E16, Totalizer Overflow Error. . . . . . . . . . . . . . . 201
Channel/Path (Status), Activating . . . . . . . . . . . . . . . 43 E17, Temperature Input Error . . . . . . . . . . . . . . . 201
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 E18, Pressure Input Error . . . . . . . . . . . . . . . . . . 202
Computer Network E19, Density Input Error . . . . . . . . . . . . . . . . . . 202
Adding Instruments . . . . . . . . . . . . . . . . . . . . . . . 69 E2, Soundspeed Error. . . . . . . . . . . . . . . . . . . . . 200
Setting Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 E20, Special Input Error . . . . . . . . . . . . . . . . . . . 202
CONFIG Menu Map . . . . . . . . . . . . . . . . . . . . . . . 218 E21, API Error. . . . . . . . . . . . . . . . . . . . . . . . . . 202
Configuration, Path . . . . . . . . . . . . . . . . . . . . . . . . . . 6 E22, Degraded Performance Error. . . . . . . . . . . . 202
Connections E3, Velocity Range Error . . . . . . . . . . . . . . . . . . 200
See Part Name E30, Channel Disabled . . . . . . . . . . . . . . . . . . . . 202
Cycle Skip, E6 . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 E4, Signal Quality Error . . . . . . . . . . . . . . . . . . . 200
E5, Amplitude Error. . . . . . . . . . . . . . . . . . . . . . 200
E6, Cycle Skip, Acceleration Error . . . . . . . . . . . 200
E7, Analog Output Error . . . . . . . . . . . . . . . . . . 201

Sentinel LNG User’s Manual 233

Index

F M
FACTORY Menu Map . . . . . . . . . . . . . . . . . . . . . . 222 Maximum
Flow Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Bi-Directional . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Non-Insulated Meter . . . . . . . . . . . . . . . . . . . . . 211 Velocity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Menu Maps
Uncertainty in Rate . . . . . . . . . . . . . . . . . . . . . . 211 CAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Uni-Directional . . . . . . . . . . . . . . . . . . . . . . . . . . 16 CONFIG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Flowcell Problems DEV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205 DISP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206 FACTORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Fluid IO #1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Entering Data . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 IO #2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Physical Requirements . . . . . . . . . . . . . . . . . . . . 205 MFG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205 PROG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Soundspeed . . . . . . . . . . . . . . . . . . . . . . . . . 47, 205 PROG Composite . . . . . . . . . . . . . . . . . . . . . . . 217
Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 USER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Meter
Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Full Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
H
Meter Correction (K) Factor . . . . . . . . . . . . . . . . . . . 63
Hyperterminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
MFG Menu Map . . . . . . . . . . . . . . . . . . . . . . . . . . 215
I Minimum
Information Paragraphs . . . . . . . . . . . . . . . . . . . . . . iii Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Installation Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Bi-Directional . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Velocity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Electrical Connections . . . . . . . . . . . . . . . . . . . . . 19 Modbus
Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Connecting the Communications Line . . . . . . . . . . 24
Installing the System . . . . . . . . . . . . . . . . . . . . . . 18 Mounting Flange . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Mounting Flange . . . . . . . . . . . . . . . . . . . . . . . . . 18 Multipath Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
N
Uni-Directional . . . . . . . . . . . . . . . . . . . . . . . . . . 16
No Error, E0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
IO Menu Map #1 . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Node ID . . . . . . . . . . . . . . . . . . . . . . . . . . . 69, 71, 72
IO Menu Map #2 . . . . . . . . . . . . . . . . . . . . . . . . . . 220
O
K
Operation, Principal of . . . . . . . . . . . . . . . . . . . . . . . . 5
K Factor, Entering . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Kinematic Viscosity, Entering . . . . . . . . . . . . . . . . . 44
L
Lining Soundspeed . . . . . . . . . . . . . . . . . . . . . . . . . 66
Low Signal, E1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
LVD, See CE Mark Compliance . . . . . . . . . . . . . . . 223

234 Sentinel LNG User’s Manual

 Index

P S
PanaView Safety
Adding Instruments . . . . . . . . . . . . . . . . . . . . . . . 69 Auxiliary Equipment . . . . . . . . . . . . . . . . . . . . . . iii
Computer Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 67 General Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Meter Browser . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Personal Equipment . . . . . . . . . . . . . . . . . . . . . . . iii
Path Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Security
Peak Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Pipe Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Dimensions, Entering . . . . . . . . . . . . . . . . . . . . . . 65 Security Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Lining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Serial Port
Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Parameters, Entering . . . . . . . . . . . . . . . . . . . . . . 64 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . 24
Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206 Service Record . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Spoolpiece Dimensions . . . . . . . . . . . . . . . . . . . . . 9 Settle Tracking AGC, E13 . . . . . . . . . . . . . . . . . . . 201
Submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Setup, Minimum Required . . . . . . . . . . . . . . . . . . . . 67
Wall Thickness . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Signal
Power Maximum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . 14, 22 Minimum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Terminal Block . . . . . . . . . . . . . . . . . . . . . . . 14, 22 Parameters, Entering . . . . . . . . . . . . . . . . 45, 48, 61
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Path, Entering Data . . . . . . . . . . . . . . . . . . . . . . . 61
Pressure Input Error, E18 . . . . . . . . . . . . . . . . . . . . 202 Submenu . . . . . . . . . . . . . . . . . . . . . . . . . 45, 48, 61
Principal of Operation . . . . . . . . . . . . . . . . . . . . . . . . 5 Signal Quality Error, E4 . . . . . . . . . . . . . . . . . . . . . 200
Flow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Software
Multipath Design . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Checking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Updating . . . . . . . . . . . . . . . . . . . . . . 193, 194, 196
Transit-Time Method . . . . . . . . . . . . . . . . . . . . . . . 6 Soundspeed
Problems, Transducers . . . . . . . . . . . . . . . . . . . . . . 206 Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47, 205
PROG Composite Menu Map . . . . . . . . . . . . . . . . . 217 Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Prog Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Pipe Lining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
PROG Menu Map . . . . . . . . . . . . . . . . . . . . . . . . . 216 Pipe Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Soundspeed Error, E2 . . . . . . . . . . . . . . . . . . . . . . 200
Special Input Error, E20 . . . . . . . . . . . . . . . . . . . . . 202
R Specifications
Return Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239 Data Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Reynolds Correction, Entering Data . . . . . . . . . . . . . 44 System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
RS485 Port Spoolpiece, Pipe Dimensions . . . . . . . . . . . . . . . . . . . 9
See Serial Port
Status Submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
System
Advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Sentinel LNG User’s Manual 235

Index

T V
Temperature Coefficient . . . . . . . . . . . . . . . . . . . . . . 60 Velocity
Temperature Input Error, E17 . . . . . . . . . . . . . . . . . 201 Maximum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Terminal Block Minimum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Power - TB5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Velocity Averaging . . . . . . . . . . . . . . . . . . . . . . . . . 62
Serial Port - RS485 . . . . . . . . . . . . . . . . . . . . . . . 24 Velocity Range Error, E3 . . . . . . . . . . . . . . . . . . . . 200
Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Voltage, Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Time Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
W
Totalizer Overflow Error, E16 . . . . . . . . . . . . . . . . 201
Wall Thickness . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Totalizer/Frequency
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Wedge
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Tracking Seek Mode, E14 . . . . . . . . . . . . . . . . . . . 201
Soundspeed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Tracking Windows. . . . . . . . . . . . . . . . . . . . . . . . . . 47
Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Transducers
Wiring
Cycle Skip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Access to . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Entering Parameters . . . . . . . . . . . . . . . . . . . . . . . 59
Alarm Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Internal Damage . . . . . . . . . . . . . . . . . . . . . . . . 206
Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59, 60
Analog Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Other. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
CE Mark Compliance . . . . . . . . . . . . . . . . . . . . . 223
Physical Damage . . . . . . . . . . . . . . . . . . . . . . . . 206
Connection Labels . . . . . . . . . . . . . . . . . . . . . . . . 20
Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Frequency Output . . . . . . . . . . . . . . . . . . . . . . . . 30
Principal of Operation . . . . . . . . . . . . . . . . . . . . . . 6
I/O Terminal Block . . . . . . . . . . . . . . . . . . . . . . . 30
Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Line Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Making Connections . . . . . . . . . . . . . . . . . . . . . . 19
Submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Modbus Communications Line . . . . . . . . . . . . . . . 24
Transit-Time Method . . . . . . . . . . . . . . . . . . . . . . . . . 6
Option Card
Transmit Sample Size . . . . . . . . . . . . . . . . . . . . . . . 62
See Card Name
Trimming 4-20 mA . . . . . . . . . . . . . . . . . . . . . . . . 198 Totalizer Output . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Tw Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Z
U
Zero Cutoff . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45, 62
USER Menu Map . . . . . . . . . . . . . . . . . . . . . . . . . 222
User Program
Data Record . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41, 42
Unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

236 Sentinel LNG User’s Manual

 Warranty

Warranty
Each instrument manufactured by GE Sensing is warranted to be free from defects in material and workmanship.
Liability under this warranty is limited to restoring the instrument to normal operation or replacing the instrument, at
the sole discretion of GE Sensing. Fuses and batteries are specifically excluded from any liability. This warranty is
effective from the date of delivery to the original purchaser. If GE Sensing determines that the equipment was
defective, the warranty period is:

• one year from delivery for electronic or mechanical failures

• one year from delivery for sensor shelf life

If GE Sensing determines that the equipment was damaged by misuse, improper installation, the use of unauthorized
replacement parts, or operating conditions outside the guidelines specified by GE Sensing, the repairs are not covered
under this warranty.

The warranties set forth herein are exclusive and are in lieu of all other warranties whether
statutory, express or implied (including warranties or merchantability and fitness for a
particular purpose, and warranties arising from course of dealing or usage or trade).

Return Policy
If a GE Sensing instrument malfunctions within the warranty period, the following procedure must be completed:

1. Notify GE Sensing, giving full details of the problem, and provide the model number and serial number of the
instrument. If the nature of the problem indicates the need for factory service, GE Sensing will issue a RETURN
AUTHORIZATION NUMBER (RAN), and shipping instructions for the return of the instrument to a service
center will be provided.
2. If GE Sensing instructs you to send your instrument to a service center, it must be shipped prepaid to the authorized
repair station indicated in the shipping instructions.
3. Upon receipt, GE Sensing will evaluate the instrument to determine the cause of the malfunction.

Then, one of the following courses of action will then be taken:

• If the damage is covered under the terms of the warranty, the instrument will be repaired at no cost to the owner and
returned.
• If GE Sensing determines that the damage is not covered under the terms of the warranty, or if the warranty has
expired, an estimate for the cost of the repairs at standard rates will be provided. Upon receipt of the owner’s
approval to proceed, the instrument will be repaired and returned.

Sentinel LNG User’s Guide 237

Warranty

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238 Sentinel LNG User’s Guide

GE DECLARATION
Sensing OF
CONFORMITY
DOC-0009, Rev. A

We, GE Sensing
1100 Technology Park Drive
Billerica, MA 01821
USA

declare under our sole responsibility that the

Sentinel LCT Liquid Custody Transfer Ultrasonic Flowmeter

Sentinel LNG Cryogenic Liquids Ultrasonic Flowmeter
Sentinel SEN898 Ultrasonic Flow Transmitter

to which this declaration relates, are in conformity with the following standards:

• EN 60079-0: 2006
• EN 60079-1: 2007
• EN 61241-0: 2006, EN 6124101: 2004
• EN 60529: 1991 +A1: 2000
• II 2 G Ex de IIB T6 Ta = -40°C to +60°C IP66; FM09ATEX0072X (FM Global, UK)
• II 2 D Ex tD A21 IP66 T85°C Tz = -40°C to +60°C IP66; FM09ATEX0072 (FM Global, UK)
• EN 61326-1: 2006, Class A, Table 2, Industrial Locations
• EN 61326-2-3: 2006
• EN 61010-1: 2001, Overvoltage Category II, Pollution Degree 2

following the provisions of the 2004/108/EC EMC, 2006/95/EC Low Voltage and 94/9/EC ATEX Directives.

The units listed above and any ancillary equipment supplied with them do not bear CE marking for the Pressure
Equipment Directive, as they are supplied in accordance with Article 3, Section 3 (sound engineering practices and
codes of good workmanship) of the Pressure Equipment Directive 97/23/EC for DN<25.

Billerica - August 2010

Issued Mr. Gary Kozinski
Certification & Standards, Lead Engineer
Customer Support Centers

U.S.A.
The Boston Center
1100 Technology Park Drive
Billerica, MA 01821
U.S.A.
Tel: 800 833 9438 (toll-free)
978 437 1000
E-mail: sensing@ge.com

Ireland
Sensing House
Shannon Free Zone East
Shannon, County Clare
Ireland
Tel: +353 61 61470291
E-mail: gesensingsnnservices@ge.com

An ISO 9001:2008 Certified Company

www.ge-mcs.com/en/about-us/quality.html

www.ge-mcs.com
©2011 General Electric Company. All rights reserved.
Technical content subject to change without notice.

910-286 Rev. B