SD01727D/06/EN/01.

16 Products Solutions Services

71331791

Special Documentation
Proline Promass 300
Functional Safety Manual

Coriolis flowmeter
Application Your benefits
Monitoring of the maximum and/or minimum flow or density • Use for flow monitoring up to SIL 2 (single-channel
in systems which are required to comply with the particular architecture) or SIL 3 (multi-channel architecture with
functional safety requirements of IEC 61508. homogeneous redundancy) - independently assessed and
certified by TÜV in accordance with IEC 61508
The measuring device fulfills the requirements concerning:
• Alternatively also suitable for density monitoring
• Functional safety as per IEC 61508
• Measurement is virtually independent of the process
• Explosion protection (depending on the version)
properties
• Electromagnetic compatibility as per IEC 61326-3-2 and
• Permanent self-monitoring
NAMUR recommendation NE 21
• Easy installation and commissioning
• Electrical safety as per IEC 61010-1
• Integrated proof-testing
• Heartbeat verification for the documentation of diagnostic
checks in accordance with IEC 61511
 Proline Promass 300

Table of contents

Manufacturer's Declaration . . . . . . . . . . . . . . . . . . . 3
Safety-related characteristic values . . . . . . . . . . . . . . . . . . 4
Useful lifetime of electric components . . . . . . . . . . . . . . . . 6

Document information . . . . . . . . . . . . . . . . . . . . . . . 6
Document function . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Using this document . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Supplementary device documentation . . . . . . . . . . . . . . . . 7

Permitted device types . . . . . . . . . . . . . . . . . . . . . . . 9

SIL label on the nameplate . . . . . . . . . . . . . . . . . . . . . . 10

Safety function . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Definition of the safety function . . . . . . . . . . . . . . . . . . . 10
Restrictions for use in safety-related applications . . . . . . . 10

Use in protective systems . . . . . . . . . . . . . . . . . . . . 12

Device behavior during operation . . . . . . . . . . . . . . . . . . 12
Parameter configuration for safety-related applications . . . 13
Proof-testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Life cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Requirements for the personnel . . . . . . . . . . . . . . . . . . . 23
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Modification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Structure of the measuring system . . . . . . . . . . . . . . . . . 25
Verification or calibration . . . . . . . . . . . . . . . . . . . . . . . 26
Notes on the redundant use of multiple sensors . . . . . . . . 26
Version history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

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Manufacturer's Declaration

A0031602-EN

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Safety-related characteristic
values
General

Device designation and permitted versions 8A3B (Promass A 300)

8E3B (Promass E 300)
8F3B (Promass F 300)
8H3B (Promass H 300)
8I3B (Promass I 300)
8O3B (Promass O 300)
8P3B (Promass P 300)
8Q3B (Promass Q 300)
8S3B (Promass S 300)
8X3B (Promass X 300)

Order code for "Output; input 1":

• Option BA "4-20mA HART"
• Option BB "4-20mA + Wireless HART"
• Option CA "4-20mA HART Ex-i"
• Option CB "4-20mA Ex-i + Wireless HART"
Order code for "Output; input 2":
All options
Order code for "Output; input 3":
All options
Order code for "Additional approval":
Option LA "SIL"

Safety-related output signal 4 to 20 mA (output; input 1)

Error current ≤ 3.6 mA or ≥ 21 mA

Assessed measured variable/function Monitoring of mass flow, volume flow or density

Safety function(s) Min., Max., Range

Device type according to IEC 61508-2  Type A  Type B

Operating mode  Low Demand Mode  High Demand Mode  Continuous Mode 1)

Valid hardware version (main electronics) From delivery date August 2, 2016

Valid firmware version 01.00.zz and higher (HART; from delivery date August 2, 2016)

Safety manual SD01727D

Type of assessment Complete HW/SW assessment in the context of development including FMEDA and change
(only 1 version can be selected) process according to 61508-2, 3

 Assessment of evidence for proven-in-use HW/SW including FMEDA and change process
according to 61508-2, 3

 Analysis of HW/SW field data for evidence of "prior use" according to IEC 61511

 Assessment by FMEDA according to IEC 61508-2 for devices without software

Assessment by (including Report No. + FMEDA TÜV Rheinland Industrie Service GmbH – Certificate No. 968/FSP 1306.00/16
data source)

Test documents Development documents, test reports, data sheets

SIL integrity

Systematic safety integrity  SIL 2 capable  SIL 3 capable

Hardware safety integrity Single-channel service (HFT = 0)  SIL 2 capable  SIL 3 capable

Multi-channel service (HFT ≥ 1)  SIL 2 capable  SIL 3 capable

FMEDA

Safety function(s) Min., Max., Range

Option BA, BB Option CA, CB

2)
λDU 121 FIT 117 FIT
2)
λDD 1366 FIT 1346 FIT

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λSU 2) 871 FIT 1067 FIT

2)
λSD 1308 FIT 1295 FIT

SFF - Safe Failure Fraction 97 % 97 %

3)
PFDavg for T1 = 1 year 5.3 · 10-4 5.1 · 10-4
(single-channel architecture)

PFDavg for T1 = 4 years 3) 2.1 · 10-3 2.0 · 10-3

(single-channel architecture)

PFH 6.1 · 10-8 5.8 · 10-8

PTC 4) Up to 98 %
5)
MTBFtot 66 years 55 years
6)
Diagnostic test interval 30 min
7)
Fault response time 30 s
8)
Process safety time 50 h

Recommended test interval T1 4 years

9)
MTTFd 77 years 78 years

Note

The measuring device has been developed for use in "Low Demand" and "High Demand" mode.

Explanation

Our in-house quality management system saves information on safety-related systematic errors that will become known in the future.

1) No continuous operation as per IEC 61508: 2011 (section 3.5.16)

2) FIT = Failure In Time, number of failures per 109 h
3) Valid for averaged ambient temperatures up to 40 °C (104 °F) in accordance with general standard for devices with SIL capability.
4) PTC = Proof Test Coverage (diagnostic coverage achieved by device failure detection during manual proof testing)
5) This value takes into account all failure types of the electronic components as per Siemens SN29500
6) All diagnostic functions are carried out at least once during this time.
7) Maximum time between fault detection and fault response.
8) The process safety time amounts to the diagnostic test interval * 100 (calculation as per IEC 61508).
9) MTTFd as per ISO 13849/IEC 62061 also includes soft errors (sporadic bit errors in data memories).

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Useful lifetime of electric The established failure rates of electrical components apply for a useful lifetime of 12 years as per
components IEC 61508-2: 2010, Section 7.4.9.5, Note 3.
The device's year of manufacture is coded in the first character of the serial number (→ table below).
Example: serial number L5ABBF02000 → year of manufacture 2016

ASCII character Meaning ASCII character Meaning ASCII character Meaning

D 2010 K 2015 R 2020

E 2011 L 2016 S 2021

F 2012 M 2017 T 2022

H 2013 N 2018 V 2023

J 2014 P 2019 W 2024

Document information
Document function The document is part of the Operating Instructions and serves as a reference for application-specific
parameters and notes.
• General information about functional safety: SIL
• General information about SIL is available:
In the Download Area of the Endress+Hauser Internet site: www.de.endress.com/SIL

Using this document Information on the document structure

For the arrangement of the parameters as per the Operation menu, Setup menu, Diagnostics
menu, along with a short description, see the Operating Instructions for the device
For information about the operating philosophy, see the "Operating philosophy" chapter in the
device's Operating Instructions

Symbols used Safety symbols

Symbol Meaning

DANGER!
DANGER This symbol alerts you to a dangerous situation. Failure to avoid this situation will
result in serious or fatal injury.

WARNING!
WARNING This symbol alerts you to a dangerous situation. Failure to avoid this situation can
result in serious or fatal injury.

CAUTION!
CAUTION This symbol alerts you to a dangerous situation. Failure to avoid this situation can
result in minor or medium injury.

NOTE!
NOTICE This symbol contains information on procedures and other facts which do not result in
personal injury.

Symbols for certain types of information

Symbol Meaning

Tip
Indicates additional information.

Reference to documentation

A Reference to page

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Symbol Meaning

Reference to graphic

Notice or individual step to be observed

1. , 2. , 3. … Series of steps

Result of a step

Operation via local display

Operation via operating tool

Write-protected parameter

Symbols in graphics

Symbol Meaning

1, 2, 3 ... Item numbers

A, B, C, ... Views

A-A, B-B, C-C, ... Sections

Supplementary device For an overview of the scope of the associated Technical Documentation, refer to the following:
documentation • The W@M Device Viewer : Enter the serial number from the nameplate
(www.endress.com/deviceviewer)
• The Endress+Hauser Operations App: Enter the serial number from the nameplate or scan the
2-D matrix code (QR code) on the nameplate.

Standard documentation

Operating Instructions

Measuring device Documentation code

Promass A 300 BA01482D

Promass E 300 BA01484D

Promass F 300 BA01485D

Promass H 300 BA01486D

Promass I 300 BA01487D

Promass O 300 BA01488D

Promass P 300 BA01489D

Promass Q 300 BA01490D

Promass S 300 BA01491D

Promass X 300 BA01492D

Description of Device Parameters

Measuring device Documentation code

Promass 300 GP01057D

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Technical Information

Measuring device Documentation code

Promass A 300 TI01270D

Promass E 300 TI01272D

Promass F 300 TI01221D

Promass H 300 TI01273D

Promass I 300 TI01274D

Promass O 300 TI01275D

Promass P 300 TI01276D

Promass Q 300 TI01277D

Promass S 300 TI01278D

Promass X 300 TI01279D

Supplementary device-dependent documentation

Safety Instructions

Contents Documentation code

ATEX/IECEx Ex d/Ex de XA01414D

ATEX/IECEx Ex ec XA01514D

cCSAus XP XA01515D

cCSAus Ex d/ Ex de XA01516D

cCSAus Ex nA XA01517D

INMETRO Ex d/Ex de XA01518D

INMETRO Ex ec XA01519D

NEPSI Ex d/Ex de XA01520D

NEPSI Ex nA XA01521D

Remote display and operating module DKX001

Contents Documentation code

ATEX/IECEx Ex i XA01494D

ATEX/IECEx Ex ec XA01498D

cCSAus IS XA01499D

cCSAus Ex nA XA01513D

INMETRO Ex i XA01500D

INMETRO Ex ec XA01501D

NEPSI Ex i XA01502D

NEPSI Ex nA XA01503D

Special Documentation

Contents Documentation code

Information on the Pressure Equipment Directive SD01614D

Remote display and operating module DKX001 SD01763D

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Installation Instructions

Contents Documentation code

Installation Instructions for spare For an overview of the accessories available for order, see the Operating
part sets Instructions for the device

Permitted device types

The details pertaining to functional safety in this manual relate to the device versions listed below
and are valid as of the specified software and hardware versions. Unless otherwise specified, all
subsequent versions can also be used for safety functions. A modification process according to IEC
61508 is applied for any device modifications.

Feature Designation Option selected

– Order code 8A3B (Promass A 300)

8E3B (Promass E 300)
8F3B (Promass F 300)
8H3B (Promass H 300)
8I3B (Promass I 300)
8O3B (Promass O 300)
8P3B (Promass P 300)
8Q3B (Promass Q 300)
8S3B (Promass S 300)
8X3B (Promass X 300)

000 Nominal diameter All

010 Approval; transmitter + sensor All

015 Power supply All

1)
020 Output; input 1 • Option BA "4-20mA HART"
• Option BB "4-20mA + Wireless HART"
• Option CA "4-20mA HART Ex-i"
• Option CB "4-20mA Ex-i + Wireless HART"

021 Output; input 2 All

022 Output; input 3 All

030 Display; Operation All

040 Housing All

050 Electrical connection All

060 Measuring tube mat., wetted surface All

070 Process connection All

080 Calibration flow All

480 Device model All

500 Display operating language All

520 Sensor option All

530 Customer-specific configuration All

540 Application Package All

2)
550 Suitability for custody transfer measurement All

570 Service All

580 Test, certificate All

590 Additional approval LA (= SIL) 3)

610 Accessory mounted All

620 Accessory enclosed All

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Feature Designation Option selected

850 Firmware version Firmware with SIL capability, e.g. 01.00.zz (HART)

895 Marking All

1) In devices with several outputs, only current output 1 (terminals 26 and 27) is suitable for safety functions.
The other outputs can, if necessary, be connected for non-safety-oriented purposes.
2) Only for devices with approval for custody transfer
3) Additional selection of further approvals is possible.

SIL label on the nameplate

Order code:
Ser. no.:
Ext. ord. cd.:

i i

Date:

1
A0031473

1 SIL logo

Safety function
Definition of the safety The measuring device's permitted safety functions are:
function • Monitoring of a maximum or minimum mass flow or a mass flow range for liquid or gaseous
media
• Monitoring of a maximum or minimum volume flow or a volume flow range for liquid media
• Monitoring of a maximum or minimum density or a density range for liquid media
The safety functions are based on the simultaneous, continuous measurement of the mass flow and
the density of a liquid.

Safety-related output signal

The measuring device's safety-related signal is the 4–20 mA analog output signal (output; input 1).
All safety measures refer to this signal exclusively.
In devices with several outputs, only current output 1 (terminals 26 and 27) is suitable for safety
functions. The other outputs can, if necessary, be connected for non-safety-oriented purposes.
The safety-related output signal is fed to a downstream automation system where it is monitored for
the following:
• Overshooting and/or undershooting of a specified limit value for the flow or the density of the
medium
• The occurrence of a fault: e.g. error current (≤ 3.6 mA, ≥ 21 mA), interruption or short-circuit of
the signal line

Restrictions for use in safety- Do not exceed the specifications indicated in the device documentation: →  7.
related applications
Dangerous undetected failures in this scenario
An incorrect output signal that deviates from the value specified in the Operating Instructions but is
still in the range of 4 to 20 mA, is considered a dangerous, undetected failure.

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Detailed information concerning measured errors:

For detailed information on the maximum measured error, see the Operating Instructions for
the device →  7

Suitability of the measuring device

1. Carefully select the nominal diameter of the measuring device in accordance with the
application's expected flow rates.
 The maximum flow rate during operation must not exceed the specified maximum value
for the sensor.
2. In safety-related applications, it is advisable to select the limit value for monitoring a minimum
flow such that this limit is at least twice the smallest specified flow that can still be measured,
with the actual medium and the selected nominal diameter.
 For detailed information, see the Technical Information for the device →  8
3. In safety-related applications, it is also advisable to select a limit value for monitoring the
minimum flow that is not less than 5 % of the specified maximum value of the sensor.

NOTICE
Use the measuring device according to the specifications.
‣ Pay attention to the medium properties and the environmental conditions.
‣ Carefully follow instructions pertaining to critical process situations and installation conditions.
Detailed information on:
• Installation
• Electrical connection
• Medium properties
• Environment
• Process
Operating Instructions and Technical Information for the device →  7

LCAUTION
Pay particular attention to the following:
‣ It is essential to avoid the occurrence of entrained air, cavitation or two-phase mixtures in the
measuring tube which can result in a higher measuring uncertainty.
‣ In the case of liquids with a low boiling point or liquids in suction lines, it is important to ensure
that the pressure does not drop below the vapor pressure and that the liquid does not start to
boil.
‣ Please ensure that there is never any outgassing of the gases naturally contained in many liquids.
Sufficiently high system pressure prevents the occurrence of these effects.
‣ Make sure that cavitation does not occur as it can affect the operating life of the measuring
tubes.
‣ If gaseous media are used, turbulences can occur at high flow velocity rates, e.g. if valves are
half-closed. This can cause the measured values to fluctuate.
‣ Avoid applications that cause buildup, corrosion or abrasion in the measuring tube.
No special measures need to be taken into consideration for single-phase, liquid media with
properties similar to water.
Detailed information on the suitability of the measuring device for safety-related operation is
available from your Endress+Hauser sales center.

Information on measured errors

When the measured value is transmitted via the 4–20 mA current output, the measuring device's
relative measured error is made up of the contribution of the digitally determined measured value
and the accuracy of the analog current output. These contributions, which are listed in the device
documentation, apply under reference operating conditions and can depend on the sensor version
ordered. If process or ambient conditions are different, there are additional contributions, e.g.
temperature or pressure, which are also listed.
For detailed information on calculating the measured error, see the Technical Information for
the device →  8

Guidelines for minimal measured errors:

1. In the event of high process pressure:
Set the typical process pressure in the measuring device.

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2. If measuring the mass flow or volume flow:

Experience shows that zero point adjustment is advisable only in special cases:
 To achieve maximum measuring accuracy even with low flow rates
Under extreme process or operating conditions (e.g. very high process temperatures or
very high-viscosity fluids)
3. The volume flow is calculated in the device from the mass flow and density. For minimum
measured error for the measured volume flow:
Perform field density calibration under process conditions.
4. Limit value monitoring: Depending on the process dynamics, the current value of the unfiltered
4–20 mA output signal can temporarily exceed the specified tolerance range.
The device can optionally provide damping of the current output via a parameter that only
affects the measured value output.
 Device-internal diagnostics or the outputting of an error current (≤ 3.6 mA, ≥ 21 mA) are
not affected by this damping.

Power supply to the 4–20 mA current output

Overvoltages at the 4–20 mA current output (passive, output; input 1) - caused by a fault in the
supply unit for example - can result in a leak current in the device's input protection circuit. This may
lead to falsification of the output signal by more than the specified error or the minimum error
current (3.6 mA) can no longer be set due to the leak current.

‣ Use a 4–20 mA power supply unit with either voltage limitation or voltage monitoring.
NOTICE
The safety-related connection values depend on the Ex approval.
‣ Pay attention to the safety-related connection values.
For detailed information on the connection values, see the "Safety Instructions" documentation
→ 8

HART communication
The measuring device also communicates via HART or WirelessHART in the SIL mode. This
comprises all the HART features with additional device information.

NOTICE
The measuring device's safety-related signal is the 4–20 mA analog output signal (output;
input 1).
All safety measures refer to this signal exclusively.
‣ Please note the following: →  10.
NOTICE
When the SIL locking code is entered, the device parameters that affect the safety-related
output signal are locked and write-protected. It is still possible to read the parameters.
When SIL locking is enabled, restrictions apply on all communication options, such as the service
interface (CDI-RJ45), HART protocol and WirelessHART protocol, local display and WLAN.
‣ Deactivation of the SIL mode →  19.

Use in protective systems

Device behavior during Device behavior during power-up
operation
Once switched on, the device runs through a start-up phase. The current output is set to error
current during this time. This current is ≤ 3.6 mA in the initial seconds of this start-up phase.
No communication with the device is possible via the interfaces during the start-up phase. After the
start-up phase the device switches to the normal mode (measuring operation).

Behavior of device during operation

The device outputs a current value which corresponds to the measured value to be monitored. This
value must be monitored and processed further in an attached automation system.

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Device behavior in safety function demand mode

Depending on the setting of the Failure mode parameter, the current is as follows in demand mode:
• For Min. option: ≤ 3.6 mA
• For Max. option: ≥ 21 mA

Device behavior in event of alarms and warnings

The output current on alarm can be set to a value ≤ 3.6 mA or ≥ 21 mA.
In some cases (e.g. a cable open circuit or faults in the current output itself, where it is not possible to
set the error current ≥ 21 mA) output currents of ≤ 3.6 mA occur irrespective of the configured error
current.
In some other cases (e.g. short circuit of cabling), output currents of ≥ 21 mA occur irrespective of
the configured error current.
For alarm monitoring, the downstream automation system must be able to recognize both maximum
alarms (≥ 21 mA) and minimum alarms (≤ 3.6 mA).

Alarm and warning messages

The alarm and warning messages output on the device display or in the operating tool in the form of
diagnostic events and the associated event text are additional information.
For detailed information on diagnostic events, see the Operating Instructions for the device
→ 7

NOTICE
When SIL mode is activated, additional diagnostics are activated.
If a diagnostic event occurs and the locked SIL mode is deactivated, the error message remains while
the error persists, even if the diagnostic event is no longer active in the unlocked state.
‣ In this case, the device must be disconnected briefly from the power supply .
‣ When the device is then restarted, a self-check is carried out, and the diagnostics event is reset
where applicable.

Parameter configuration for Calibration of the measuring point

safety-related applications
The measuring point is calibrated via the operating interfaces. A wizard guides you systematically
through all the submenus and parameters that have to be set for configuring the measuring device.
For detailed information on operation options, see the Operating Instructions for the device
→ 7
For detailed information on the configuration of the measuring device, see the Operating
Instructions for the device and the "Description of Device Parameters" documentation →  7
To activate the SIL mode, the device must run through a confirmation sequence. While running
through this sequence, critical parameters are either set automatically by the device to standard
values or transferred to the local display/operating tool to enable verification of the setting. On
completion of parameter configuration, the SIL mode of the device must be enabled with a SIL
locking code.

Availability of the SIL mode function

NOTICE
The SIL confirmation sequence is only visible on the local display and in the operating tools for
devices with the order code for "Additional approval", option LA "SIL".
‣ For this reason, the SIL mode can also only be activated on these measuring devices.
‣ If the LA "SIL" option was ordered for the flowmeter ex works, this function is available when the
measuring device is delivered to the customer. Access is via the operating interfaces of the
measuring device.
‣ If the order option cannot be accessed in the measuring device, the function cannot be retrofitted
during the life cycle of the device. If you have any questions please contact your Endress+Hauser
service or sales organization.

Ways to check function availability in the measuring device:

Using the serial number:
W@M Device viewer 1) → Order code for "Additional approval", option LA "SIL"

1) www.endress.com/deviceviewer

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Detailed information concerning the SIL label:

• Permitted device types →  9
• SIL label on the transmitter nameplate →  10

Overview of the SIL mode

The SIL mode enables the following steps:
1. Makes sure that the preconditions are met.
 The measuring device checks whether the user has correctly configured a predefined set of
parameters for the safety function.
If the result is positive, the device continues with the activation of the SIL mode.
If the result is negative, the sequence is not permitted or is aborted, and the device does
not continue with the activation of the SIL mode.
2. Automatically switches a predefined set of parameters to the default values specified by the
manufacturer.
 This parameter set ensures that the flowmeter works in the safety mode.
3. Guides the user through the preconfigured parameters for checking.
 This ensures that the user actively checks all the important pre-settings.
4. Activates write protection for all the relevant parameters in the SIL mode.
All this ensures that the parameter settings that are required for the safety function are configured
correctly. (These settings cannot be circumvented either deliberately or by accident.)

Locking a SIL device

When locking a SIL device, all safety-related parameter settings are shown to the operator
individually and must be confirmed explicitly. Parameter settings not permitted in the locked SIL
mode are reset to their default values where necessary. A SIL locking code is then entered to lock the
device software to ensure that parameters cannot be changed. Non-safety-related parameters
remain unchanged.

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NOTICE
Once the SIL device has been locked, the process-related parameters are write protected, and
thereby locked, for security reasons.
It is still possible to read the parameters. When SIL locking is enabled, restrictions apply on all
communication options, such as the service interface, HART protocol and WirelessHART protocol,
local display and WLAN.
‣ Follow the specified locking sequence.
1. Check preconditions.

Setup

Select medium Current output 1

Pressure Assign
Current span Failure mode
compensation current output 1

= Off or = Mass flow* or = 4...20 mA or = Min. or

= Fixed value = Vol. flow* or = 4...20 mA NAMUR or = Max.
= Density* = 4...20 mA US

* ... unit ≠ user-defined unit

Partial filled Partial filled

pipe detection pipe detection

Assign Assign
process variable process variable

= Off or = Off or
= Mass flow or = Density
= Vol. flow

A0015325-EN

2. In the Setup menu → Advanced setup submenu, select the SIL confirmation wizard.
3. Select Set write protection parameter.
4. Enter the SIL locking code 7452.
 The device first checks the preconditions listed under item 1.

NOTICE
If these preconditions are not met, the message "SIL preparation = failed" appears on the
display along with the parameter that failed to meet the preconditions under 1.
The SIL confirmation sequence is not continued.
‣ Check preconditions.
If the conditions are met, the message "SIL preparation = finished" appears on the display.
Once the preconditions have been met, the device automatically switches the following parameters
to safety-oriented settings:

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Setup

Partial filled
Current output 1
pipe detection

Measuring mode Response time

(4 mA value) part. filled p. d.

= =
Forward flow 0

A0015326-EN

Diagnostics

Simulation

Assign simulat. Simulation

process variable current output 1

= =
Off Off

A0015327-EN

The diagnostic behavior is set in such a way that the measuring device is set to the safe state when
an error occurs. This means that the diagnostic messages listed in the graphic are set to alarm and
the current output adopts the configured failsafe mode →  12.

Expert

System

Diagnostic
handling

Diagnostic
behavior

Diagnostic no. Diagnostic no. Diagnostic no. Diagnostic no. Diagnostic no. Diagnostic no.
046 140, 274 374 830, 831 834, 835 913

=
Alarm

A0031622-EN

• Diagnostic message 046 Sensor limit exceeded

• Diagnostic message 140 Sensor signal
• Diagnostic message 274 Main electronic failure
• Diagnostic message 374 Sensor electronic (ISEM) faulty
• Diagnostic message 830 Sensor temperature too high
• Diagnostic message 831 Sensor temperature too low
• Diagnostic message 834 Process temperature too high
• Diagnostic message 835 Process temperature too low
• Diagnostic message 913 Medium unsuitable

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Expert

Sensor

Process
parameter

Density Flow Flow

damping damping override

= = =
0 0 Off

A0031474-EN

Expert

Sensor

Sensor
adjustment

Variable
adjustment

Mass flow Mass flow Volume flow Volume flow Density offset Density factor
offset factor offset factor

= = = = = =
0 1 0 1 0 1

A0023070-EN

Expert

Sensor

External
compensation

Temperture
mode

=
Internal
measured
value

A0031477-EN

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Expert

Output Communication

Current HART
output 1 configuration

Start-up HART
mode address

= =
Min. 0

A0015328-EN

To check that values are displayed correctly, the following string appears on the device display or
operating tool: 0123456789+-.
5. The user must confirm that the values are displayed correctly.
 The device displays the current settings for the following parameters one after another for
the user to confirm each of them:

Installation Assign
Current span
direction current output

Signal mode 4 mA value 20 mA value

Damping Failure mode Medium

1) Reference Temp. coeff.

Gas type 1) 1)
sound velocity sound velocity

Partial filled Low value High value

pipe detection part. filled pipe det. part. filled pipe det.

Max. damping Assign Off value

part. filled pipe det. low flow cutoff low flow cutoff

On value Pressure shock Pressure

low flow cutoff suppression compensation

Pressure value Zero point

A0031475-EN

1) This parameter is only displayed if the "Gas" option is selected in the "Medium" parameter.

For detailed information on the parameters in the graphic, see the Operating Instructions for
the device →  7

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6. At the end of the verification, the SIL locking code 7452 must be entered in the Set write
protection parameter again to confirm that all the parameter values have been defined
correctly.
 If the SIL locking code has been entered correctly, the message "End of sequence" appears
on the display.
7. Press the  key to confirm.
The SIL mode is now activated.

Recommendation:

OFF ON
1
2
3
4

A0029630

1. Check the write protection switch (WP) in the connection compartment.

2. Set this switch to the ON position where necessary.
 Hardware write protection enabled.
3. Restart the device on completion of the SIL confirmation sequence.

NOTICE
If the SIL confirmation sequence is aborted before the "End of sequence" message is displayed,
the SIL device is not locked. The safety-oriented parameter settings have been made but the SIL
device has not been locked.
‣ Perform SIL device locking again.
Unlocking a SIL device
A device in the locked SIL mode is protected against unauthorized operation by means of a SIL
locking code and, where applicable, by means of a user-specific release code and a hardware write
protection switch. The device must be unlocked in order to change parameters, for proof-tests as well
as to reset self-holding diagnostic messages.

NOTICE
Unlocking the device deactivates diagnostic functions, and the device may not be able to carry
out its safety function in the unlocked SIL mode.
‣ Therefore, independent measures must be taken to ensure that there is no risk of danger while
the SIL device is unlocked.

Unlocking procedure:
1. Check the write protection switch (WP) in the connection compartment.
2. Set this switch to the OFF position where necessary.
 Hardware write protection disabled.
3. Enter the user-specific release code if necessary.
4. In the Setup menu → Advanced setup submenu, select the Deactivate SIL wizard.
5. Select Reset write protection parameter.
6. Enter the SIL locking code 7452.
 If the SIL locking code has been entered correctly, the message "End of sequence" appears
on the display.
7. Press the  key to confirm.
The SIL mode is now deactivated.

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Proof-testing NOTICE
The safety function is not guaranteed during a proof test.
Nevertheless, process safety must be guaranteed during proof testing.
‣ The safety-related output signal 4 to 20 mA (output; input 1) may not be used for the protective
system.
‣ Take alternative monitoring measures if necessary.
Proof testing the safety function of the entire system
1. Check the functional integrity of the safety function at appropriate intervals.
2. The operator specifies the testing interval and this must be taken into account when
determining the probability of failure PFDavg of the sensor system.
 In the case of a single-channel system architecture, the average probability of failure (PFD
avg) of the sensor is derived from the proof-test interval Ti, the failure rate for dangerous
undetected failures λ du, the proof test coverage PTC and the assumed mission time by
close approximation as follows:

PFDavg ≈ λdu × (PTC/2 × Ti + (1 - PTC) / 2 × MT)

A0023571

MT Mission time
PTC Proof test coverage
Ti Test interval
3. The operator also specifies the procedure for proof-testing.
 NOTE!
In accordance with IEC 61511, as an alternative to testing the safety function of the entire
system an independent proof test of the subsystems, →  21 e.g. the sensor, is
permitted.

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Average probability of failure and useful lifetime

PFDavg for a single-channel system:

SIL2 - 1oo1

PFDa!"
0.003

0.0025 2

0.002

0.0015

0.001
1
0.0005

0 t
0 2 4 6 8 10
A0031604

1 Option BA "4-20mA HART", option BB "4-20mA + Wireless HART"

PFDa!"
0.003

0.0025 2

0.002

0.0015

0.001
1
0.0005

0 t
0 2 4 6 8 10
A0031605

2 Option CA "4-20mA HART Ex-i", option CB "4-20mA Ex-i + Wireless HART"

t Mission time in years

1 PFDavg - Average probability of dangerous failure on demand

2 Limit value for average probability of failure

1oo1 Single-channel architecture

Proof testing the sensor subsystem

If there are no operator-specific requirements for the proof test, the following alternatives are
available for testing the sensor subsystem 2) depending on the measured variable used for the safety
function (A = mass flow/volume flow; B = density).
A. Check of the measured value for liquid and gaseous mass flow or volume flow

I. Test sequence:
The measured values (3 to 5 measuring points) are checked with a secondary standard on an
installed device (mobile calibration rig or calibrated reference device) or on a factory calibration rig
following device removal.
The measured values of the secondary standard and the device under test (DUT) are compared using
one of the following methods:

2) Under IEC 61508 the sensor is synonymous with the entire flowmeter.

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a. Comparison by reading off the digital measured value

Compare the digital measured value of the secondary standard against the measured value display of
the DUT at the logic subsystem (process control system or safety-related PLC).
b. Comparison of the measured value by measuring the current
1. Measure the current at the DUT using an external, traceably-calibrated ammeter.
 Note: measuring equipment requirements:
• DC current measuring uncertainty ±0.2 %
• DC current resolution 10 μA
2. Measure the current of the DUT at the logic subsystem (process control system or safety-
related PLC).

II. Assessment of the results:

The amount of deviation between the measured flow rate and the set point must not exceed the
measured error specified for the safety function.
‣ Follow the information in the section on "Restrictions for use in safety-related applications –
information on measured errors" →  10.

B. Check of the measured value for density

The measuring device is checked consecutively in the empty state and with a medium of known
density (e.g. process medium or water).

I. Test sequence:
Check the measured values with a reference value (secondary standard or value from the literature)
when the device is installed, or check on a factory calibration rig once the device has been removed.
The density measured values determined in each case are compared against the real density of the
media.
The reference values are compared against the measured values of the device under test (DUT) using
one of the following methods:
a. Comparison by reading off the digital measured value
Compare the digital measured value of the secondary standard against the measured value display of
the DUT at the logic subsystem (process control system or safety-related PLC).
b. Comparison of the measured value by measuring the current
1. Measure the current at the DUT using an external, traceably-calibrated ammeter.
 Note: measuring equipment requirements:
• DC current measuring uncertainty ±0.2 %
• DC current resolution 10 μA
2. Measure the current of the DUT at the logic subsystem (process control system or safety-
related PLC).

II. Assessment of the results:

The amount of deviation between the measured density and the reference value must not exceed the
measured error specified for the safety function.
‣ Follow the information in the section on "Restrictions for use in safety-related applications –
information on measured errors" →  10.

Other recommendations

It is advisable to perform a visual inspection on site.

‣ As part of the visual inspection of the transmitter, ensure that all of the electronics compartment
cover seals and cable entries are providing adequate sealing.

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NOTICE
At least 98 % of dangerous, undetected failures are detected using these test sequences (PTC =
0.98). The influence of systematic errors on the safety function is not fully covered by the test.
Systematic faults can be caused, for example, by medium properties, operating conditions,
build-up or corrosion.
‣ If one of the test criteria from the test sequences described above is not fulfilled, the device may
no longer be used as part of a protective system.
‣ Take measures to reduce systematic errors.
Detailed information on:
• Orientation
• Medium properties
• Operating conditions
Operating Instructions for the device →  7

Heartbeat Technology
Heartbeat Technology continuously diagnoses whether failures have occurred. The scope of the
diagnostics in the SIL mode corresponds to the SFF.
Heartbeat Technology also allows operators to create documented proof that diagnostic checks have
been carried out and thereby supports the documentation of proof testing in accordance with IEC
61511-1, Section 16.3.3, "Documentation of proof testing and inspections".

NOTICE
The SIL mode needs to be disabled temporarily in order to perform heartbeat verification.
‣ On completion of the verification, the SIL mode must be enabled again .
The Heartbeat Verification application package is available as an order option and can be
retrofitted on all measuring devices.
Please contact your Endress+Hauser service or sales organization to retrofit the device.
For detailed information on the verification of the measuring device with Heartbeat
Verification,application package, refer to the Special Documentation for the device →  8

Life cycle
Requirements for the The personnel for installation, commissioning, diagnostics and maintenance must fulfill the
personnel following requirements:
‣ Trained, qualified specialists must have a relevant qualification for this specific function and task.
‣ Are authorized by the plant owner/operator.
‣ Are familiar with federal/national regulations.
‣ Before starting work, read and understand the instructions in the manual and supplementary
documentation as well as the certificates (depending on the application).
‣ Follow instructions and comply with basic conditions.
The operating personnel must fulfill the following requirements:
‣ Are instructed and authorized according to the requirements of the task by the facility's owner-
operator.
‣ Follow the instructions in this manual.

Installation Installation and electrical connection

Detailed information on:
• Installation
• Electrical connection
• Medium properties
• Environment
• Process
Operating Instructions and Technical Information for the device →  7

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Orientation
For detailed information on the orientation, see the Operating Instructions for the device
→ 7

Commissioning For detailed information on commissioning, see the Operating Instructions for the device
→ 7

Operation For detailed information on operation options, see the Operating Instructions for the device
→ 7

Maintenance For detailed information on maintenance, see the Operating Instructions for the device →  7

Alternative monitoring measures must be taken to ensure process safety during configuration,
proof-testing and maintenance work on the device.

Repairs Repair means restoring functional integrity by replacing defective components. Components of
the same type must be used for this purpose. It is recommended to document the repair. This
includes specifying the device serial number, the repair date, the type of repair and the
individual who performed the repair.
For detailed information on device returns, see the Operating Instructions for the device →  7

Replacing device components

The following components may be replaced by the customer's technical staff if genuine spare parts
are used and the appropriate installation instructions are followed:
• Sensor
• Transmitter without a sensor
• Display module
• Power unit
• Main electronics module
• I/O-Module
• Terminals
• Connection compartment cover
• Electronics compartment cover
• Seal sets for electronics compartment cover
• Securing clamps for electronics compartment cover
• Cable glands
Installation Instructions: see the Download Area at www.endress.com.
The replaced component must be sent to Endress+Hauser for the purpose of fault analysis if the
device has been operated in a protective system and a device error cannot be ruled out. In this case,
always enclose the "Declaration of Hazardous Material and Decontamination" with the note "Used as
SIL device in protection system" when returning the defective device. Please also refer to the "Return"
section in the Operating Instructions ..

Modification Modifications are changes to devices with SIL capability already delivered or installed.
‣ Modifications to devices with SIL capability are usually performed in the Endress+Hauser
manufacturing center.
‣ Modifications to devices with SIL capability onsite at the user's plant are possible following
approval by the Endress+Hauser manufacturing center. In this case, the modifications must be
performed and documented by an Endress+Hauser service technician.
‣ Modifications to devices with SIL capability by the user are not permitted.

Decommissioning For detailed information on decommissioning, see the Operating Instructions for the device
→ 7

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Appendix
Structure of the measuring System components
system

1 2 3
A0015443

3 System components
1 Pump
2 Measuring device
3 Valve
4 Automation system

An analog signal (4–20 mA) proportional to the flow or density is generated in the transmitter. This
is sent to a downstream automation system where it is monitored to determine whether it falls
below or exceeds a specified limit value. The safety function (mass flow, volume flow or density
monitoring) is implemented in this way.

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Description of use of protective system

The measuring device can be used in protective systems to monitor the following (Min., Max. and
range):
• Volume flow
• Mass flow
• Density

NOTICE
The device must be correctly mounted to guarantee safe operation.
‣ Observe the mounting instructions.
For detailed information on mounting, see the Operating Instructions for the device →  7

4 Min. Max. 20 [mA]

A0015277

4 Monitoring options in protective systems

A Min. alarm
B Max. alarm
C Range monitoring

= Safety function is triggered

= Permitted operating status

Verification or calibration The SIL mode must be disabled in order to verify the measuring point with Heartbeat Technology or
calibrate the measuring point.

NOTICE
To use the device in a safety function again following a verification or calibration, the
configuration of the measuring point must be checked and the SIL mode must be enabled
again.
‣ Activation of the SIL mode →  14.

Notes on the redundant use This section provides additional information regarding the use of homogeneously redundant sensors
of multiple sensors e.g. 1oo2 or 2oo3 architectures.
The common cause factors β and βD indicated below are minimum values for the device. These must
be used when designing the sensor subsystem:
• Minimum value β for homogeneously redundant use: 2 %
• Minimum value βD for homogeneously redundant use: 1 %
The device meets the requirements for SIL 3 in homogeneously redundant applications. When
installing identical sensors, i.e. the same type and nominal diameter, the sensors must not be
connected directly flange to flange but at different locations in the pipe. This is to prevent the
sensors from affecting each other acoustically.

NOTICE
Note the following if a fault is detected in one of the redundantly operated devices during the
proof test:
‣ Check the other devices to see if the same fault occurs there.

Version history Version changes Valid as of firmware version

SD01727D/06/xx/01.16 First version 01.00.zz (HART; from delivery date August 2, 2016)

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