BA00444C/07/EN/17.

13
71238290
Products Solutions Services
Valid as of:
Softwareversion 01.05.00

Operating Instructions
Liquiline
CM442/CM444/CM448
Universal four-wire multichannel controller
Field device
Liquiline CM442/CM444/CM448

Table of contents

1 Document information . . . . . . . 5 7 System integration. . . . . . . . . . 42

1.1 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . 5 7.1 Web server . . . . . . . . . . . . . . . . . . . . . . . . 42
1.2 Symbols used . . . . . . . . . . . . . . . . . . . . . . . 5 7.2 Service interface . . . . . . . . . . . . . . . . . . . . 44
1.3 Documentation . . . . . . . . . . . . . . . . . . . . . 6 7.3 Fieldbuses . . . . . . . . . . . . . . . . . . . . . . . . . 45

2 Basic safety instructions . . . . . . 7 8 Operation options . . . . . . . . . . 46

2.1 Requirements for personnel . . . . . . . . . . . 7 8.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 46
2.2 Designated use . . . . . . . . . . . . . . . . . . . . . . 7 8.2 Access to the operating menu via the
2.3 Occupational safety . . . . . . . . . . . . . . . . . . 8 local display . . . . . . . . . . . . . . . . . . . . . . . . 47
2.4 Operational safety . . . . . . . . . . . . . . . . . . . 8 8.3 Configuration options . . . . . . . . . . . . . . . 48
2.5 Product safety . . . . . . . . . . . . . . . . . . . . . . 8
9 Commissioning . . . . . . . . . . . . . 52
3 Device description . . . . . . . . . . . 9 9.1 Function check . . . . . . . . . . . . . . . . . . . . . 52
3.1 Housing closed . . . . . . . . . . . . . . . . . . . . . . 9 9.2 Switching on the unit . . . . . . . . . . . . . . . . 52
3.2 Housing open . . . . . . . . . . . . . . . . . . . . . . . 9 9.3 Basic setup . . . . . . . . . . . . . . . . . . . . . . . . . 54
3.3 Device architecture . . . . . . . . . . . . . . . . . 10
10 Operation. . . . . . . . . . . . . . . . . . 55
4 Incoming acceptance and 10.1 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
product identification . . . . . . . 12 10.2 General settings . . . . . . . . . . . . . . . . . . . . 58
4.1 Incoming acceptance . . . . . . . . . . . . . . . . 12 10.3 Current inputs . . . . . . . . . . . . . . . . . . . . . . 72
4.2 Product identification . . . . . . . . . . . . . . . 12 10.4 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
4.3 Scope of delivery . . . . . . . . . . . . . . . . . . . 13 10.5 Binary inputs and outputs . . . . . . . . . . . . 82
4.4 Certificates and approvals . . . . . . . . . . . 13 10.6 Additional functions . . . . . . . . . . . . . . . . . 90

5 Installation . . . . . . . . . . . . . . . . 14 11 Diagnostics and

5.1 Installation conditions . . . . . . . . . . . . . . 14 troubleshooting . . . . . . . . . . . 119
5.2 Mounting the measuring device . . . . . . 16 11.1 General troubleshooting . . . . . . . . . . . 119
5.3 Post-installation check . . . . . . . . . . . . . . 19 11.2 Diagnostic information on the local
display . . . . . . . . . . . . . . . . . . . . . . . . . . 120
6 Electrical connection . . . . . . . . 20 11.3 Diagnostic information via web
6.1 Connection conditions . . . . . . . . . . . . . . 20 browser . . . . . . . . . . . . . . . . . . . . . . . . . 120
6.2 Connecting the measuring device . . . . . 23 11.4 Diagnostic information via fieldbus . . 120
6.3 Connecting the sensors . . . . . . . . . . . . . . 30 11.5 Adjusting diagnostic information . . . . 121
6.4 Connecting additional inputs, outputs or 11.6 Overview of diagnostic information . . 124
relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 11.7 Pending diagnostic messages . . . . . . . 127
6.5 Connecting digital communication . . . . 36 11.8 Diagnostics list . . . . . . . . . . . . . . . . . . . 127
6.6 Hardware settings . . . . . . . . . . . . . . . . . . 40 11.9 Event logbook . . . . . . . . . . . . . . . . . . . . 127
6.7 Guaranteeing the degree of protection . 40 11.10 Simulation . . . . . . . . . . . . . . . . . . . . . . 131
6.8 Post-connection check . . . . . . . . . . . . . . 41 11.11 Reset measuring instrument . . . . . . . 132
11.12 Device information . . . . . . . . . . . . . . . 133
11.13 Firmware history . . . . . . . . . . . . . . . . . 136

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Liquiline CM442/CM444/CM448

12 Maintenance. . . . . . . . . . . . . . 138
12.1 Calibration . . . . . . . . . . . . . . . . . . . . . . . 138
12.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . 139

13 Repair. . . . . . . . . . . . . . . . . . . . 141
13.1 Spare parts . . . . . . . . . . . . . . . . . . . . . . . 141
13.2 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
13.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . 144

14 Accessories . . . . . . . . . . . . . . . 145
14.1 Weather protection cover . . . . . . . . . . 145
14.2 Post mounting kit . . . . . . . . . . . . . . . . . 145
14.3 Measuring cable . . . . . . . . . . . . . . . . . . 145
14.4 Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . 146
14.5 Additional functionality . . . . . . . . . . . . 150
14.6 Software . . . . . . . . . . . . . . . . . . . . . . . . . 152
14.7 Other accessories . . . . . . . . . . . . . . . . . 153

15 Technical data . . . . . . . . . . . . 155

15.1 Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
15.2 Digital inputs, passive . . . . . . . . . . . . . . 156
15.3 Current input, passive . . . . . . . . . . . . . 156
15.4 Output . . . . . . . . . . . . . . . . . . . . . . . . . . 157
15.5 Digital outputs, passive . . . . . . . . . . . . 159
15.6 Current output, active . . . . . . . . . . . . . . 160
15.7 Relay outputs . . . . . . . . . . . . . . . . . . . . . 161
15.8 Protocol-specific data . . . . . . . . . . . . . . 162
15.9 Power supply . . . . . . . . . . . . . . . . . . . . . 165
15.10 Performance characteristics . . . . . . . . 167
15.11 Environment . . . . . . . . . . . . . . . . . . . . 168
15.12 Mechanical construction . . . . . . . . . . . 170

16 Installation and operation in

hazardous environment Class I
Div. 2 . . . . . . . . . . . . . . . . . . . . 170
16.1 Environment/properties . . . . . . . . . . . 170
16.2 Control Drawing . . . . . . . . . . . . . . . . . . 171

Index . . . . . . . . . . . . . . . . . . . . 172

4
Liquiline CM442/CM444/CM448 Document information

1 Document information
1.1 Warnings
The structure, signal words and safety colors of the signs comply with the specifications of
ANSI Z535.6 ("Product safety information in product manuals, instructions and other collateral
materials").

Safety message structure Meaning

DANGER
! This symbol alerts you to a dangerous situation .
Causes (/consequences) Failure to avoid the situation will result in a fatal or serious
Consequences of injury.
non-compliance (if applicable)
‣ Corrective action
WARNING
! This symbol alerts you to a dangerous situation .
Causes (/consequences) Failure to avoid the situation can result in a fatal or serious
Consequences of injury.
non-compliance (if applicable)
‣ Corrective action
CAUTION
! This symbol alerts you to a dangerous situation .
Causes (/consequences) Failure to avoid this situation can result in minor or more
Consequences of serious injuries.
non-compliance (if applicable)
‣ Corrective action
NOTICE This symbol alerts you to situations that can result in damage
Cause/situation to property and equipment.
Consequences of
non-compliance (if applicable)
‣ Action/note

1.2 Symbols used

Additional information, tips

Permitted or recommended
Forbidden or not recommended

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Document information Liquiline CM442/CM444/CM448

1.3 Documentation
As a supplement to these Operating Instructions the following manuals are available on the
CD-ROM:
• Brief Operating Instructions Liquiline CM44x, KA01159C
• Operating Instructions Memosens, BA01245C
– Software description for Memosens inputs
– Calibration of Memosens sensors
– Sensor-specific diagnostics and troubleshooting
• Operating Instructions for HART communication, BA00486C
– Onsite settings and installation instructions for HART
– Description of HART drivers
• Guidelines for communication via fieldbus and web server
– HART, SD01187C
– PROFIBUS, SD01188C
– Modbus, SD01189C
– Web server, SD01190C
The CD also contains:
• Technical Information Liquiline CM44x, TI00444C
• Documentation for other devices in the Liquiline family:
– Liquiline CM44xR (DIN rail device)
– Liquistation CSFxx and Liquiport CSP44 (sampler)
• Simulation software

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Liquiline CM442/CM444/CM448 Basic safety instructions

2 Basic safety instructions

2.1 Requirements for personnel
‣ Installation, commissioning, operation and maintenance of the measuring system must only
be carried out by specially trained technical personnel.
‣ The technical personnel must be authorized for the specified activities by the system
operator.
‣ Electrical connection must only be carried out by a certified electrician.
‣ The technical personnel must have read and understood these Operating Instructions and
must adhere to them.
‣ Faults at the measuring point may only be rectified by authorized and specially trained
personnel.
Repairs that are not described in these Operating Instructions must only be carried out
directly at the manufacturer or by the service organization.

2.2 Designated use

2.2.1 Non-hazardous atmosphere
Liquiline CM44x is a multichannel controller for connecting digital sensors with Memosens
technology in non-hazardous environments.
The device is designed for use in the following applications:
• Water and wastewater
• Power stations
• Chemical industry
• Industrial wastewater treatment plants

2.2.2 Ex environment in accordance with FM/CSA Class I Div. 2 (CM442 only) improper
use
‣ Pay attention to the control drawing and the specified operating conditions in the appendix
to this manual and follow the instructions.

2.2.3 Non-designated use

Any other use than the one described here compromises the safety of persons and the entire
measuring system and is not permitted.
The manufacturer is not liable for damage caused by improper or non-designated use.

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Basic safety instructions Liquiline CM442/CM444/CM448

2.3 Occupational safety

As the user, you are responsible for complying with the following safety conditions:
• Installation instructions
• Local standards and regulations
Electromagnetic compatibility
The product has been tested for electromagnetic compatibility in accordance with the applicable
European standards for industrial applications.
The electromagnetic compatibility indicated only applies to a product that has been connected
in accordance with the instructions in these
Operating Instructions.

2.4 Operational safety

‣ Prior to commissioning the entire measuring point, check that all connections are correct.
Ensure that electrical cables and hose connections are not damaged.
‣ Do not operate damaged products, and secure them against unintentional commissioning.
Label and identify the damaged product as being defective.
‣ If faults cannot be rectified, the products must be taken out of service and secured against
unintentional commissioning.

! CAUTION
The cleaning system is not switched off during calibration or maintenance activities
Risk of injury due to medium or cleaning agent
‣ If a cleaning system is connected, switch it off before removing a sensor from the medium.
‣ If you are not switching off the cleaning system because you wish to test the cleaning
function, wear protective clothing, goggles and gloves or take other appropriate measures.

2.5 Product safety

2.5.1 State of the art
The transmitter is designed to meet state-of-the-art safety requirements, has been tested and
left the factory in a condition in which it is safe to operate.
Relevant regulations and European standards have been observed.

2.5.2 IT security
We only provide a warranty if the device is installed and used as described in the Operating
Instructions. The device is equipped with security mechanisms to protect it against any
inadvertent changes to the device settings.
IT security measures in line with operators' security standards and designed to provide
additional protection for the device and device data transfer must be implemented by the
operators themselves.
Support in the performance of this task can be requested from Endress+Hauser.

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Liquiline CM442/CM444/CM448 Device description

3 Device description
3.1 Housing closed
1 Display
2 Weather protection cover (optional)
3 Navigator
4 Sensor cable or current output cable
5 Power supply cable
6 Soft keys, assignment depends on menu

a0012681
Fig. 1: Mounted on a post

3.2 Housing open

a0016165
Fig. 2: Example of a four-channel device with an open display cover (without wiring)
1 Storage slot for SD card 6 Cable mounting rail
2 Base module 7 Threaded bolt for protective ground connection
3 Extension modules (optional) 8 Extension power unit with internal cable
4 Shock protection, dummy cover and end cover 9 M12 connectors for sensor connection (optional)
5 Extension backplane 10 Display cable

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Device description Liquiline CM442/CM444/CM448

3.3 Device architecture

3.3.1 Slot and port assignment

a0019832

a0019833
Fig. 3: Slot and port assignment of the hardware modules
• Inputs are assigned to measuring channels in
ascending order of the slots and ports.
Adjacent example:
If "CH1: 1:1 pH glass" is displayed, this means:
Channel 1 (CH1) is slot 1 (base module) : port 1
(input 1), pH glass sensor
• The outputs and relays are named after their
function, e.g. "Current output", and are displayed with
the slot and port numbers in ascending order

Fig. 4: Slot and port assignment on the display

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Liquiline CM442/CM444/CM448 Device description

3.3.2 Terminal diagram

The unique terminal name is derived from the following:
Slot No. : Port No. : Terminal

Example, NO contact of a relay:

Device with 4 inputs for digital sensors, 4 current outputs and 4 relays
• Base module BASE-E (contains 2 sensor inputs, 2 current outputs)
• Module 2DS (2 sensor inputs)
• Module 2AO (2 current outputs)
• Module 4R (4 relays)

a0015979
Fig. 5: Creating a terminal diagram taking the example of the NO contact (terminal 41) of a relay

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Incoming acceptance and product identification Liquiline CM442/CM444/CM448

4 Incoming acceptance and product identification

4.1 Incoming acceptance
1. Make sure the packaging is undamaged.
 Inform the supplier about any damage to the packaging.
Keep the damaged packaging until the matter has been settled.
2. Make sure the contents are undamaged.
 Inform the supplier about damage to the contents.
Keep the damaged products until the matter has been settled.
3. Check that the delivery is complete and nothing is missing.
 Compare the scope of delivery against the delivery papers and your order.
4. Pack the product in such a way as to protect it reliably against impact and moisture for
storage and transportation.
 The original packaging offers the best protection.
Keep to the approved ambient conditions (see "Technical data").
If you have any questions, contact your supplier or your local sales center.

4.2 Product identification

4.2.1 Nameplate
Nameplates can be found:
• On the outside of the housing
• On the packaging (adhesive label, portrait format)
• On the inside of the display cover
The nameplate provides you with the following information on your device:
• Manufacturer ID
• Order code
• Extended order code
• Serial number
• Firmware version
• Input and output variables
• Protection class
• Ambient conditions
• Activation codes
• Safety notices and warnings
Compare the data on the nameplate with your order.

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Liquiline CM442/CM444/CM448 Incoming acceptance and product identification

4.2.2 Identifying the product

The order code and serial number of your device can be found in the following locations:
• On the nameplate
• In the delivery papers
To find out the version of your device, enter the order code indicated on the nameplate in
the search screen at the following address:
www.products.endress.com/order-ident

4.3 Scope of delivery

• 1 controller in the version ordered
• 1 mounting plate
• 1 wiring label (attached at the factory to the inside of the display cover)
• 1 CD with Operating Instructions
• 1 printed copy of the Brief Operating Instructions in the language ordered
If you have any questions, contact your supplier or your local sales center.

4.4 Certificates and approvals

4.4.1 CE mark: Declaration of Conformity
With this declaration, the manufacturer guarantees that the product conforms to the
regulations of European Directive 2004/108/EC concerning electromagnetic compatibility and
Low Voltage Directive 2006/95/EC. This is proven by observing the standards listed in the
Declaration of Conformity.

4.4.2 cCSAus
The product meets the requirements of "CLASS 2252 05 - Process Control Equipment" and
"CLASS 2252 85 - Process Control Equipment - Certified to US Standards".

4.4.3 FM/CSA (CM442 only)

FM/CSA Cl. I, Div. 2
The device has been developed and tested according to the following standards:
• FM3600 (1998)
• FM3611 (2004)
• FM3810 (2005)
• ANSI/ISA NEMA250 (1999)
• ANSI/IEC 60529 (2001)

4.4.4 MCERTS
Application has been submitted for CM442

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Installation Liquiline CM442/CM444/CM448

5 Installation
5.1 Installation conditions
5.1.1 Dimensions

a0012396
Fig. 6: Dimensions of field housing in mm (inch)

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Liquiline CM442/CM444/CM448 Installation

5.1.2 Mounting plate

a0012426
Fig. 7: Mounting plate in mm (inch)

5.1.3 Weather protection cover (optional)

NOTICE
Effect of climatic conditions (rain, snow, direct sun etc.)
Impaired operation to complete transmitter failure
‣ When installing outside, always use the weather protection cover (accessory).

a0012428
Fig. 8: Weather protection cover in mm (inch)

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Installation Liquiline CM442/CM444/CM448

5.2 Mounting the measuring device

You will require the post mounting kit to mount the unit on a pipe, post or railing (circular or
square, clamping range 20 to 61 mm (0.79 to 2.40")). The post mounting kit can be ordered as
an option.

5.2.1 Post mounting

a0012665
Fig. 9: Post mounting
1 Weather protection cover (optional) 5 Spring washers and nuts (post mounting kit)
2 Post mounting plate (post mounting kit) 6 Pipe or post (circular/square)
3 Spring washers and nuts (post mounting kit) 7 Mounting plate
4 Pipe clamps (post mounting kit) 8 Threaded rods (post mounting kit)

a0012666 a0012667
Fig. 10: Post mounting Fig. 11: Attach the device and click it into place

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Liquiline CM442/CM444/CM448 Installation

5.2.2 Railing mounting

a0012668
Fig. 12: Railing mounting
1 Weather protection cover (optional) 6 Pipe or railing (circular/square)
2 Post mounting plate (post mounting kit) 7 Mounting plate
3 Spring washers, nuts (post mounting kit) 8 Threaded rods (post mounting kit)
4 Pipe clamps (post mounting kit) 9 Screws (post mounting kit)
5 Spring washers, nuts (post mounting kit)

a0012669 a0012670
Fig. 13: Railing mounting Fig. 14: Attach the device and click it into place

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Installation Liquiline CM442/CM444/CM448

5.2.3 Wall mounting

Mount the controller in such a way that the wall support surface is the size of the rear housing
panel at the very least.

a0012684 a0012685
Fig. 16: Wall mounting Fig. 17: Attach the device and click it into
place
1 Wall
2 4 drill holes1)
3 Mounting plate
a0012686 4 Screws Ø 6 mm (not part of
Fig. 15: Mounting distance in mm (inch) scope of supply)

1) The size of the drill holes depends on the dowels used. The dowels and screws must be provided by the customer.

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Liquiline CM442/CM444/CM448 Installation

5.2.4 Disassembly (for conversion, cleaning etc.)

NOTICE
The device can be damaged if dropped
‣ When pushing the housing out of the holder, secure the housing in such a way that you do
not drop it. If possible, ask a second person to help you.

a0013154 a0013155
Fig. 18: Disassembly Fig. 19: Disassembly
1. Hold down the latch 3. Remove the device from the front
2. Push up the housing to remove it from the holder

5.3 Post-installation check

‣ After installation, check the transmitter for damage.
‣ Check whether the transmitter is protected against moisture and direct sunlight (e.g. by the
weather protection cover).

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Electrical connection Liquiline CM442/CM444/CM448

6 Electrical connection
! WARNING
The device is live!
Incorrect wiring can result in injury or fatality
‣ The electrical connection may only be established by an electrical technician.
‣ The electrical technician must have read and understood these Operating Instructions and
must follow the instructions they contain.
‣ Prior to beginning any wiring work, make sure voltage is not applied to any of the cables.

6.1 Connection conditions

6.1.1 Remote operation via HART (e.g. via HART modem and FieldCare)

a0015608
Fig. 20: HART via modem
1 Base-L, -H or -E device module: current output 1 with HART
2 HART modem for connecting to PC, e.g. FXA1951)
3 HART handheld terminal

1) Switch set to "on" (substitutes the resistor)

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Liquiline CM442/CM444/CM448 Electrical connection

6.1.2 Remote operation via PROFIBUS DP

a0015874
Fig. 21: PROFIBUS DP
T Terminating resistor

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Electrical connection Liquiline CM442/CM444/CM448

6.1.3 Remote operation via Modbus RS485

a0015875
Fig. 22: Modbus RS485
T Terminating resistor

6.1.4 Remote operation via ethernet/Web server/Modbus TCP/EtherNet/IP

a0015876
Fig. 23: Modbus TCP and / or ethernet

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Liquiline CM442/CM444/CM448 Electrical connection

6.2 Connecting the measuring device

! WARNING
The device is live!
Incorrect wiring can result in injury or fatality
‣ Prior to beginning any wiring work, make sure voltage is not applied to any of the cables.
NOTICE
The device does not have a power switch
‣ At the installation location, you must provide a protected circuit breaker in the vicinity of the
device.
‣ The circuit breaker must be a switch or a power-circuit breaker and must be labeled as the
circuit breaker for the device.
‣ At the supply point, the power supply for the 24 V versions must be isolated from dangerous
live cables by double or reinforced insulation.

6.2.1 Opening the housing

NOTICE
Pointed or sharp tools
If unsuitable tools are used, they can scratch the housing or damage the seal, and thus have a
negative impact on the leak-tightness of the housing.
‣ Do not use any sharp or pointed objects, such as a knife, to open the housing.
‣ Only use a suitable Phillips screwdriver.

a0012688 a0012689
Fig. 24: Releasing housing screws in a diagonally opposite Fig. 25: Opening display cover, max. opening angle 180˚
sequence with Phillips screwdriver (depends on installation position)

‣ Release the housing screws step by step. Start with any screw and then release the screw
diagonally opposite etc.
‣ When closing the housing, also tighten the screws step-by-step in a diagonally opposite
sequence.

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Electrical connection Liquiline CM442/CM444/CM448

6.2.2 Cable mounting rail

a0012454
Fig. 26: Cable mounting rail and associated function
1 Cable mounting rail 3 Additional threaded bolts for ground connections
2 Threaded bolt (protective ground connection, central 4 Cable clamps (fixing and grounding the sensor cables)
grounding point)

6.2.3 Connecting the cable shield

If possible, only use terminated genuine cables. The sensor, fieldbus and ethernet cables
must be shielded.

Cable sample (does not necessarily correspond to the genuine cable supplied)

1 2

a0013210 a0013211 a0013212

Fig. 27: Terminated cable Fig. 28: Inserting the cable Fig. 29: Tightening the screw (2 Nm)1)
1 Outer shield (exposed) 4 Grounding clip The cable shield is grounded by the
2 Cable cores with ferrules grounding clip
3 Cable sheath (insulation)

1) Observe the information in the "Guaranteeing the degree of protection" section (→ ä 40)

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Liquiline CM442/CM444/CM448 Electrical connection

1. Release a suitable cable gland on the underside of the housing and remove the dummy plug
from the entry.
2. Making sure the gland is facing the right direction, thread the gland onto the cable end and
pull the cable through the entry and into the housing.
3. Route the cable in the housing in such a way that the exposed cable shield fits into one of
the cable clamps and the cable cores can be easily routed as far as the connection plug on
the electronics module.
4. Screw on the cable clamp and clamp the cable in place. Then tighten the screw of the cable
clamp again.
5. Connect the cable cores as per the wiring diagram.
6. Lastly, tighten the cable gland from the outside.

6.2.4 Cable terminals

Plug-in terminals for Memosens and PROFIBUS/RS485 connections

a0012691 a0012692 a0012693

Fig. 30: Press the screwdriver against Fig. 31: Insert the cable until the limit Fig. 32: Remove the screwdriver (closes
the clip (opens the terminal) stop the terminal)

After connection, make sure that every cable end is securely in place. Terminated cable
ends, in particular, tend to come loose easily if they have not been correctly inserted as far
as possible.

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Electrical connection Liquiline CM442/CM444/CM448

All other plug-in terminals

a0012694 a0012695 a0012696

Fig. 33: Insert the screwdriver until the Fig. 34: Insert the cable until the limit Fig. 35: Remove the screwdriver (closes
limit stop (opens the terminal) stop the terminal)

6.2.5 Power supply CM442

a0015825
Fig. 36: Power supply connection on BASE-H or -L
H Power unit 100 to 230 VAC a0012404
L Power unit 24 VAC or 24 VDC Fig. 37: Overall wiring diagram BASE-H or -L

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Liquiline CM442/CM444/CM448 Electrical connection

Connecting the supply voltage

1. Route the power supply cable into the housing through the suitable cable entry.
Step 2 only applies for the 100 to 230 V AC power unit.
2. Connect the protective ground of the power unit to the threaded bolt specially provided on
the cable mounting rail.
3. Protective ground or grounding at the mounting location (absolutely essential for 24 V
power units, additionally recommended for 100 to 230 V AC power unit): You must
provide a ground cable (min. 0.75 mm2 (corresponding to 18 AWG)). Guide the ground
cable also through the cable entry and connect it to the threaded bolt on the cable mounting
rail (→ å 38).
4. Connect the cable cores L and N (100 to 230 V AC, 24 V AC) or + and - (24 V DC) to the
plug-in terminals on the base module in accordance with the wiring diagram.

1 Protective ground, mounted at the factory

1 2 3 4 5 2 Serrated washer and nut
3 Protective ground / ground cable, provided by the customer
(min. 0.75 mm (corresponding to 18 AWG))
4 Serrated washer and nut
5 Threaded bolt

a0013251
Fig. 38: Protective ground or grounding connection

NOTICE
Protective ground/ground cable with wire end ferrule or open cable lug
The cable can become loose. Loss of the protective function.
‣ To connect the protective ground or ground cable to the threaded bolt, only use a cable with
a closed cable lug as per DIN 46211, 46225, form A.
‣ Never connect the protective ground or ground cable to the threaded bolt with a wire end
ferrule or an open cable lug!

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Electrical connection Liquiline CM442/CM444/CM448

6.2.6 Power supply CM444 and CM448

a0015872 a0015873
Fig. 39: Power supply connection with BASE-E Fig. 40: Overall wiring diagram BASE-E and extension
power unit (B)
A Internal power supply cable
B Extension power unit

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Liquiline CM442/CM444/CM448 Electrical connection

Connecting the supply voltage

1. Route the power supply cable into the housing through the suitable cable entry.
Step 2 only applies for the 100 to 230 V AC power unit.
2. Connect the protective ground of the power unit to the threaded bolt specially provided on
the cable mounting rail.
3. Protective ground or grounding at the mounting location (absolutely essential for 24 V
power unit, additionally recommended for 100 to 230 V AC power unit): You must
provide a ground cable (min. 0.75 mm2 (corresponding to 18 AWG)). Guide the ground
cable also through the cable entry and connect it to the threaded bolt on the cable mounting
rail (→ å 41).
4. Connect the cable cores L and N (100 to 230 V AC) or + and - (24 V DC) to the plug-in
terminals on the power unit in accordance with the wiring diagram.

1 Protective ground of power unit

1 2 3 4 5 2 Serrated washer and nut
3 Protective ground / ground cable, provided by the customer
(min. 0.75 mm (corresponding to 18 AWG))
4 Serrated washer and nut
5 Threaded bolt

a0013251
Fig. 41: Protective ground or grounding connection

NOTICE
Protective ground/ground cable with wire end ferrule or open cable lug
The cable can become loose. Loss of the protective function.
‣ To connect the protective ground or ground cable to the threaded bolt, only use a cable with
a closed cable lug as per DIN 46211, 46225, form A.
‣ Never connect the protective ground or ground cable to the threaded bolt with a wire end
ferrule or an open cable lug!

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Electrical connection Liquiline CM442/CM444/CM448

6.3 Connecting the sensors

6.3.1 Sensor types with Memosens protocol

Sensor types Sensor cable Sensors

Digital sensors without additional CYK10 with plug connection • pH sensors

internal power supply and inductive signal • ORP sensors
transmission • Combined sensors
• Amperometric oxygen sensors
• Conductive conductivity sensors
• Chlorine sensors

Fixed cable Inductive conductivity sensors

Digital sensors with additional Fixed cable • Turbidity sensors

internal power supply • Sensors for interface measurement
• Sensors for measuring the spectral absorption
coefficient (SAC)
• Nitrate sensors
• Optical oxygen sensors
• Ion-sensitive sensors

The following rule applies if connecting CUS71D sensors:

• CM442
– Only one CUS71D is possible; an additional sensor is not allowed.
– The second sensor input may also not be used for another type of sensor.
• CM444
No restrictions. All the sensor inputs can be used as required.
• CM448
– If a CUS71D is connected, the number of sensor inputs that can be used is limited to a
maximum of 4.
– Of these, all 4 inputs can be used for CUS71D sensors.
– Every combination of CUS71D and other sensors is possible provided that the total number
of connected sensors does not exceed 4.

6.3.2 Connecting sensors with Memosens protocol

Connection methods
1. Sensor cable directly connected to the terminal connector of the sensor module 2DS or the
L, H or E base module
2. Optional: Sensor cable plug connected to the M12 sensor socket on the underside of the
device. With this type of connection, the device is already wired at the factory.

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1. Sensor cable connected directly

a0012459 a0012460
Fig. 42: Sensors without additional supply voltage Fig. 43: Sensors with additional supply voltage

a0016197
Fig. 44: Sensors with and without additional supply voltage
at sensor module 2DS

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Electrical connection Liquiline CM442/CM444/CM448

2. Connection via M12 plug-in connection

Device versions with a premounted M12
socket are ready-wired upon delivery.
Install an M12 socket, which is available as an
accessory, in a suitable cable gland opening in
the base of the housing, and connect the cables
to the Memosens terminals of the sensor or
base module as per the wiring diagram
(→ å 45).
Connecting the sensor
‣ Connect the plug of the sensor cable (item
1) directly to the M12 socket.
Please note the following for these device
versions:
a0018021
Fig. 46: M12 assignment • The internal device wiring is always the
Top: socket same regardless of what kind of sensor you
Bottom: connector
(top view in each connect to the M12 socket (plug&play).
case) • The signal and power supply cables are
1 PK (24 V) assigned in the sensor plug-in head in such
a0018019
2 GY (ground 24 V) a way that the PK and GY power supply
3 BN (3 V)
Fig. 45: M12 plug-in
4 WH (ground 3 V)
cables are either used (e.g. optical sensors)
connection (e.g. on
sensor module) 5 GN (Memosens) or not (e.g. pH or ORP sensors).
6 YE (Memosens)
1 Sensor cable with M12 7, NC Not connected
connector

6.4 Connecting additional inputs, outputs or relays

! WARNING
Module not covered
No shock protection. Danger of electric shock!
‣ If you are modifying or extending your hardware, always fill the slots from left to right. Do
not leave any gaps.
‣ If not all the slots are occupied, always insert a dummy or end cover into the slot to the right
of the last module (→ å 2, item 4). This ensures the unit is shock-protected.
‣ Always ensure shock protection is guaranteed particularly in the case of relay modules (2R,
4R, AOR).

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6.4.1 Digital inputs and outputs

DIO module

a0019917 a0019836
Fig. 47: Module front Fig. 48: Wiring diagram

6.4.2 Current inputs

Module 2AI

a0016184 a0015761
Fig. 49: Module front Fig. 50: Wiring diagram

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Electrical connection Liquiline CM442/CM444/CM448

6.4.3 Current outputs

Module 2AO Module 4AO

a0016179 a0015759 a0016178 a0015760

Fig. 51: Module front Fig. 52: Wiring diagram Fig. 53: Module front Fig. 54: Wiring diagram

6.4.4 Relays

Module 2R Module 4R

a0016181 a0015758 a0016182 a0015757

Fig. 55: Module front Fig. 56: Wiring diagram Fig. 57: Module front Fig. 58: Wiring diagram

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Liquiline CM442/CM444/CM448 Electrical connection

Example: Connecting the cleaning unit 71072583 for CAS40D

a0016195
Fig. 59: Connecting the cleaning unit for CAS40D

Example: Connecting the injector cleaning unit Chemoclean CYR10

a0016194
Fig. 60: Connecting the injector cleaning unit CYR10
1 External power supply
2 Cleaner to spray head
3 Container with cleaner
4 Motive water 2 to 12 bar (30 to 180 psi)
5 Backflow valve (to be provided by the customer)

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Electrical connection Liquiline CM442/CM444/CM448

6.5 Connecting digital communication

6.5.1 Module 485

a0016173 a0015762
Fig. 61: Bus connections on module 485 Fig. 62: Wiring diagram for module 485
* Optional to supply power to an external
terminating resistor for bus termination

LEDs on front of module

LED Designation Color Description

RJ45 LNK/ACT GN • Off = Connection is not active

• On = Connection is active
• Flashing = Data transmission

RJ45 10/100 YE • Off = Transmission rate 10 MBit/s

• On = Transmission rate 100 MBit/s

PWR Power GN Supply voltage is applied and module is initialized

BF Bus failure RD Bus failure

SF System failure RD System failure

COM Communication YE Sending or receiving Modbus message

T Bus termination YE • Off = No termination

• On = Termination is used

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Liquiline CM442/CM444/CM448 Electrical connection

DIP switches on front of module

DIP Factory setting Assignment

1-128 ON Bus address (--> "Commissioning/Communication")

OFF Write protection: "ON" = configuration not possible via the bus, only via local operation

Service OFF Only for service, not to be used by the operator

6.5.2 Connection via M12 connector

PROFIBUS DP, Modbus RS485

M12 Y-section Wiring in Y-section Pin assignment in connector and socket

a0016312
Fig. 65: Connector (left) and socket (right)
1 P5V, 5 V power supply for external
terminating resistor
2 A (GN), signal RxD/TxD-N
3 P0V, reference potential for P5V
4 B (RD), signal RxD/TxD-P
5 n.c., not connected
* Shield
* = Thread

a0016310 a0016311
Fig. 63: M12 connection Fig. 64: Wiring

When using the M12 Y-section, the maximum data transfer rate is limited to 1.5 MBit/s.
For direct wiring, the maximum data transfer rate is 12 MBit/s.

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Electrical connection Liquiline CM442/CM444/CM448

Ethernet, Web server

Internal connection Pin assignment in connector and socket

a0016314
Fig. 67: Connector (left) and socket (right)
1 Tx+
2 Rx+
3 Tx-
4 Rx-
* Shield

* = Thread

a0016313
Fig. 66: Ethernet socket

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Liquiline CM442/CM444/CM448 Electrical connection

6.5.3 Bus termination

There are two ways to terminate the bus:
1. Internal terminating resistor (via DIP switch on the module board)

Fig. 68: DIP switches for internal terminating resistor

‣ Using a suitable tool, such as a tweezers, set all 4 DIP switches to the "ON" position.
 The internal terminating resistor is used.

a0016306
Fig. 69: Structure of the internal terminating resistor

2. External terminating resistor

Here, leave the DIP switches on the module board in the "OFF" position (factory setting).
‣ Connect the resistor to terminals 81 and 82 on the front of module 485 for 5-V power
supply.
 The external terminating resistor is used.

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Electrical connection Liquiline CM442/CM444/CM448

6.6 Hardware settings

Setting the bus address
1. Open the housing.
2. Set the desired bus address via the DIP switches of module 485.
For PROFIBUS DP, valid bus addresses are anything between 1 and 126, and anything
between 1 and 247 for Modbus. If you configure an invalid address, software addressing is
automatically enabled via the local configuration or via the fieldbus.

a0016322 a0016323 a0016324

Fig. 70: Valid PROFIBUS address 67 Fig. 71: Valid Modbus address 195 Fig. 72: Invalid address 255 1)

1) Order configuration, software addressing is enabled, software address configured at the factory: PROFIBUS 126,
Modbus 247

6.7 Guaranteeing the degree of protection

Only the mechanical and electrical connections that are described in this manual, and are
necessary for the required, designated application, may be established on the device supplied.
‣ Please play close attention when performing the work as degrees of protection individually
confirmed for this product (ingress protection (IP), electrical safety, EMC interference
immunity, explosion protection) can no longer be guaranteed as a result of things such as:
– Leaving off covers
– Not tightening cable glands sufficiently (must be tightened with 2 Nm for the confirmed
level of IP protection)
– Loose or insufficiently tightened cables/cable ends
– Conductive cable strands left in the device

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Liquiline CM442/CM444/CM448 Electrical connection

6.8 Post-connection check

! WARNING
Wiring errors
Incorrect wiring puts the safety of people and the measuring point at risk. The manufacturer
does not accept any responsibility for errors that result from failure to comply with the
instructions in this manual.
‣ Operate the device only if you can answer yes toall of the following questions.
Device state and specifications
• Are the transmitter and cables free from damage on the outside?
Electrical connection
• Are the mounted cables strain relieved?
• Are the cables run without loops and cross-overs?
• Are the signal lines correctly connected in accordance with the wiring diagram?
• Have all the other connections been established correctly?
• Have you connected unused connection wires to the protective ground connection?
• Are all plug-in terminals securely engaged?
• Are all the connection wires securely positioned in the cable terminals?
• Are all the cable entries installed, firmly tightened and leak-tight?
• Does the supply voltage match the voltage indicated on the nameplate?

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System integration Liquiline CM442/CM444/CM448

7 System integration
7.1 Web server
7.1.1 Connection
‣ Connect the PC communication cable to the RJ45 port of module 485.

a0016228
Fig. 73: Ethernet connection

7.1.2 Creating the data connection

1. Start your PC.
2. First, set a manual IP address in the network connection settings of the operating system.
 This address must be in the same subnetwork as the IP address of the device.
Example:
• IP address Liquiline: 192.168.1.212 (Diagnostics/System
information/Ethernet/IP-Address)
• IP address for the PC: 192.168.1.213
3. Start the Internet browser.
If you use a proxy server to connect to the Internet:
4. Disable the proxy (browser settings under "Connections/LAN settings").
5. Enter the IP address of your device in the address line.
 The system takes a few moments to establish the connection and then the CM44 web
server starts.

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Liquiline CM442/CM444/CM448 System integration

‣ Enter the following address(es) to download logbooks:

• 192.168.1.212/logbooks_csv.fhtml (for logbooks in CSV format)
• 192.168.1.212/logbooks_fdm.fhtml (for logbooks in FDM format)
Downloads in FDM format can be securely transmitted, saved and visualized with
Endress+Hauser's "Field Data Manager Software".
(--> www.products.endress.com/ms20)

7.1.3 Operation
The menu structure of the web server corresponds to the onsite operation.

Menu/Setup
Device tag: Measuring point no. 1
Device state: OK

Software version: 01.03.00

MENU Basic setup ?

General settings ?
CAL Inputs ?
DIAG Outputs ?
Additional functions ?

a0016397
Fig. 74: Example of web server (menu/language=English)

• Clicking a menu name or a function corresponds to pressing the navigator.

• You can make your settings conveniently via the computer keyboard.
Instead of using an Internet browser, you can also use FieldCare for configuration via
ethernet. The ethernet DTM required for this purpose can be downloaded from the product
page.

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System integration Liquiline CM442/CM444/CM448

7.2 Service interface

You can connect the device to a computer via the service interface and configure it using
"Fieldcare". Furthermore, configurations can also be saved, transferred and documented.

7.2.1 Connection
‣ Connect the service connector to the interface on the Liquiline base module and connect it
to the Commubox.
‣ Via the USB port, connect the Commubox to the computer running the Fieldcare software.

a0014953
Fig. 75: Connection overview

7.2.2 Creating the data connection

1. Start Fieldcare.
2. Establish a connection to the Commubox. For this, select the ComDTM
"CDI Communication FXA291"
3. Then select the DTM for CM442/CM444/CM448/CM442R/CM444R/CM448R and start
the configuration.
You can now start online configuration via the DTM.
Online configuration competes with onsite operation, i.e. each of the two options blocks the
other one. On both sides it is possible to take away access from the other side.
A video showing an example of how to set up a connection to CM44x is available on the CD.

7.2.3 Operation
• In the DTM the menu structure corresponds to the onsite operation. The functions of the
Liquiline soft keys are found in the main window on the left.
• Clicking a menu name or a function corresponds to pressing the navigator.
• You can make your settings conveniently via the computer keyboard.
• Via Fieldcare, you can save logbooks, make backups of configurations and transfer the
configurations to other devices.
• You can also print out configurations or save them as PDFs.

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7.3 Fieldbuses
7.3.1 HART
You can communicate using the HART protocol via current output 1.
‣ Connect the HART modem or handheld to current output 1 (communication load 230 - 500
Ohm).
‣ Establish the connection via your HART device.
‣ Operate Liquiline via the HART device. To do so, follow the instructions in the manual.
All the information on HART communication is provided on the CD (--> BA00486C).

7.3.2 PROFIBUS-DP
With the fieldbus module 485 and the appropriate device version, you can communicate via
PROFIBUS DP.
Connect the PROFIBUS data cable to the terminals of the fieldbus module as described → ä 36.
All the information on PROFIBUS communication is provided on the CD (SD01188C).

7.3.3 Modbus
With the fieldbus module 485 and the appropriate device version, you can communicate via
Modbus RS485 or Modbus TCP.
The RTU and ASCII protocols are available when connecting via Modbus RS485. You can switch
to ASCII on the device.
Connect the Modbus data cable to the terminals of the fieldbus module (RS 485) or to the RJ45
(TCP) port as described (→ ä 36).
All the information on Modbus communication is provided on the CD (--> SD01189C).

7.3.4 EtherNet/IP
With the fieldbus module 485 and the appropriate device version, you can communicate via
EtherNet/IP.
Connect the EtherNet/IP data cable to the RJ45 socket of the fieldbus module as described.
All the information on EtherNet/IP communication is provided on the CD (--> SD01293C).

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Operation options Liquiline CM442/CM444/CM448

8 Operation options
8.1 Overview
8.1.1 Display and operating elements

a0011764
Fig. 76: Overview of operation
1 Display (red background in the event of an error)
2 Navigator (jog/shuttle and press/hold function)
3 Soft keys (function depends on the menu)

8.1.2 Display

1 Menu path and/or device designation

2 Status display
a0012697-en 3 Help if available
Fig. 77: Display (example) 4 Assignment of the soft keys

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Liquiline CM442/CM444/CM448 Operation options

8.2 Access to the operating menu via the local display

8.2.1 Operation concept

a0012790-en a0012791-en
Fig. 78: Pressing the soft key: selecting the menu directly Fig. 79: Turning the navigator: moving the cursor in the
menu

a0012792-en a0012793-en
Fig. 80: Pressing the navigator: launching a function Fig. 81: Turning the navigator: selecting a value (e.g. from a
list)

a0012794-en a0012795-en
Fig. 82: Pressing the navigator: accepting the new value Fig. 83: Result: new setting is accepted

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Operation options Liquiline CM442/CM444/CM448

8.2.2 Locking or unlocking operating keys

Locking operating keys
1. Press the navigator for longer than 2 s.
 A context menu for locking the operating keys is displayed.
You have the choice of locking the keys with or without password protection. "With password"
means that you can only unlock the keys again by entering the correct password. You can set
this password here: Menu/Setup/General settings/Extended setup/Data management/Change
lock password.

2. Choose whether you want to lock with or without a password.

 The keys are locked. No more entries can be made. In the soft key bar you can see the
symbol .
The password is 0000 when the device is delivered from the factory. Make sure to note
down any new password as otherwise you will not be able to unlock the keypad yourself.

Unlocking operating keys

1. Press the navigator for longer than 2 s.
 A context menu for unlocking the operating keys is displayed.
2. Select "Key unlock".
 The keys are unlocked immediately if you did not choose to lock with a password.
Otherwise you are asked to enter your password.
3. Only if keypad is password-protected: enter the right password.
 The keys are unlocked. It is possible to access the entire onsite operation again. The
symbol is no longer visible on the screen.

8.3 Configuration options

8.3.1 Display only
• You can only read the values but cannot change them.
• Typical read-only values are: sensor data and system information
• Example: Menu/Setup/Inputs/../Sensor type

8.3.2 Picklists
• You receive a list of options.
• You select one of the options.
• Example: Menu/Setup/General settings/Temperature unit

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Liquiline CM442/CM444/CM448 Operation options

8.3.3 Numerical values

• You are changing a variable.
• The maximum and minimum values for this variable are shown in the editor.
• Set a value within this range.
• Example: Menu/Display/Operation/Contrast

8.3.4 Actions
• You trigger an action with the appropriate function.
• You know that the item in question is an action if it is preceded by the following symbol:
• Examples of typical actions include:
– Deleting log entries
– Saving or loading configurations
– Triggering cleaning programs
• Example: Diagnostics/Logbooks/Configuration logbook/Delete all entries

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Operation options Liquiline CM442/CM444/CM448

8.3.5 Free text

• You are assigning an individual designation.
• Enter a text. You can use the characters in the editor for this purpose (upper-case and
lower-case letters, numbers and special characters).
• Using the soft keys, you can:
– Cancel your entries without saving the data ( )
– Delete the character in front of the cursor ( )
– Move the cursor back one position ( )
– Finish your entries and save ( ).
• Example: Menu/Setup/General settings/Device tag

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Liquiline CM442/CM444/CM448 Operation options

8.3.6 Tables
• Tables are needed to map mathematical functions.
• You edit a table by navigating through rows and columns with the navigator and changing the
values of the cells.
• You only edit the numerical values. The controller automatically takes care of the engineering
units.
• You can add rows to the table (soft key "INSERT") or delete them (soft key "DEL").
• Afterwards, you save the table (soft key "SAVE").
• You can also cancel your entries any time via the soft key .
• Example: Menu/Setup/Inputs/pH/Medium comp.

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Commissioning Liquiline CM442/CM444/CM448

9 Commissioning
9.1 Function check
! WARNING
Incorrect connection, incorrect supply voltage
Safety risks for staff and device malfunctions
‣ Check that all connections have been established correctly in accordance with the wiring
diagram.
‣ Make sure that the supply voltage matches the voltage indicated on the nameplate.

9.2 Switching on the unit

During the device startup phase, the relay and current outputs have an undefined status
for a few seconds prior to initialization.
Watch out for possible effects on any actuators which may be connected.

9.2.1 Setting the operating language

Setting the language, configuring the display
If you have not already done so, close the housing cover and screw the device closed.
1. Switch on the supply voltage.
 Wait for the initialization to complete.
2. Press the soft key for "MENU". Select your language in the top menu item.
3. Go to the "Display/Operation" menu and configure your desired display settings (Contrast,
Backlight and Screen rotation).
 You have now changed the display to suit your requirements and can operate the device
in the preferred language.

9.2.2 Display settings

Path: Menu/Display/Operation

Function Options Info

Contrast 5 to 95 % Adjust the screen settings to suit your working

environment.
Factory setting
Backlight="Automatic"
50 %
The backlighting is switched off automatically after a
Backlight Options short time if a button is not pressed. It switches back on
• On again as soon as you press the navigator button.
• Off Backlight="On"
• Automatic The backlighting does not switch off automatically.

Factory setting
Automatic

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Path: Menu/Display/Operation

Function Options Info

Screen rotation Options If "Automatic" is selected, the single-channel measured

• Manual value display switches from one channel to the next
• Automatic every second.
Factory setting
Manual

User definable screens

Meas. screen 1 You can create 6 measuring screens of your own and
to give them a name.
Meas. screen 6 As the functions are the same for all 6 measuring
screens, only one measuring screen is described below.

Meas. screen Options Once you have defined your own measuring screen, you
• Off can switch it on here. You can find the new screen under
• On "User definable screens" in the "All measured values"
measuring mode.
Factory setting
Off

Label Customized text, 20 Name of the measuring screen

characters Appears in the status bar of the display.

Number of lines 1 to 8 Specify the number of measured values displayed.

Factory setting
1

Line 1 As the following functions are the same for all the lines,
to they are only described once.
Line 8

Signal type Options Select a source of data or an output as the signal type.
• Source of data
• Output
Factory setting
Source of data

Source of data Options Select a data source. You can choose from connected
• None sensors, available controllers, current inputs, fieldbus
Signal type= "Source
• Sensor inputs signals and mathematical functions.
of data"
• Controller
• Current inputs
• Fieldbus signals
• Mathematical functions
Factory setting
None

Output Options Select an output. You can choose from binary outputs,
• None current outputs and relays.
Signal type= "Output"
• Binary outputs
• Current outputs
• Relays
Factory setting
None

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Path: Menu/Display/Operation

Function Options Info

Measured value Options You can display different measured values depending on
• Depends on the source of the source of data or output.
data or output
Factory setting
None

Label Customized text, 20 User-defined name for the parameter to be displayed

characters

Set label to "%0V"1) Action If you perform this action you accept the parameter
name that is automatically suggested.
Your own parameter name ("Label") is lost!

1) "%0V" here stands for text that depends on the context. This text is generated automatically by the software and
inserted in place of %0V. In the simplest situations, the generated text could be the name of the measuring
channel, for example.

9.3 Basic setup

Making basic settings
1. Go to the "Setup/Basic setup" menu.
Make the following settings:
2. Device tag: Give your device any name of your choice (max. 32 characters).
3. Set date: Correct the set date if necessary.
4. Set time: Correct the set time if necessary.
For quick commissioning, you can ignore the additional settings for outputs , relays etc. You can
make these settings later in the specific menus.

5. Return to the measuring mode, by pressing and holding the soft key for "ESC" for at least one
second.
 Your controller now works with your general settings. The sensors connected use the
factory settings of the sensor type in question and the individual calibration settings that
were last saved.
If you want to configure your most important input and output parameters already in the "Basic
setup", proceed as follows:
‣ Configure the current outputs, relays, limit contactors, controllers, device diagnostics and
cleaning cycles with the submenus which follow the time setting.

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10 Operation
10.1 Display
10.1.1 Soft keys in the measurement mode
On the bottom row of the display you can find four soft keys in the measuring screens:
• "MENU", "CAL" and "DIAG" take you directly to the particular software menu.
• With "HOLD" you can activate an immediate, general hold for sensors. This interrupts any
sensor cleaning programs that are currently running. However, you can also start manual
sensor cleaning when a hold is active.

10.1.2 Measuring mode

There are various display modes:
(Press the navigator button to change the mode)
1. Overview of all the inputs and outputs
2. Main measured value of an input or output or the status of a relay
3. Main and secondary measured value of a sensor input
4. All measured values of a sensor input
5. User-defined measuring screens
You configure the type and number of values you want to display. You can choose from all
the measured values of physical and "virtual" sensors (calculated using mathematical
functions) and output parameters.
In modes 2-4, you can switch between channels by turning the navigator.

Sensor type Main value Main / secondary All values

measured value

pH, glass pH value pH value, temperature Main value, Raw value, Temperature,
Glass Impedance

Combined sensor pH value or ORP or rH value pH value or ORP or rH value, Main value, Raw value, Temperature,
pH and ORP temperature Glass Impedance

pH, ISFET pH value pH value, temperature Main value, Raw value, Temperature

ORP ORP ORP, temperature Main value, Raw value, Offset:,

Temperature

Conductivity, Conductivity Conductivity, temperature Main value, Raw value, Temperature

measured
inductively

Conductivity, Conductivity Conductivity, temperature Main value, Raw value, Temperature

measured
conductively

Oxygen, Dissolved oxygen Dissolved oxygen, Partial pressure, Saturation,

optical and temperature Concentration, Temperature
amperometric

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Sensor type Main value Main / secondary All values

measured value

Chlorine, Chlorine Chlorine, temperature Main value, Raw value, Temperature

amperometric

Nitrate Nitrate Nitrate, temperature Main value, Raw value, Temperature

Turbidity Turbidity Turbidity, temperature Main value, Raw value, Temperature

Spectral SAC SAC, temperature Main value, Raw value, Temperature

absorption
coefficient (SAC)

Sludge level Turbidity Turbidity, temperature Main value, Raw value, Temperature

Ammonium, Ammonium Ammonium, temperature Main value, Raw value, Temperature

ion-sensitive

Nitrate, Nitrate Nitrate, temperature Main value, Raw value, Temperature

ion-sensitive

Potassium, Potassium Potassium, temperature Main value, Raw value, Temperature

ion-sensitive

Interface UIS UIS UIS, turbidity

measurement also: graphic display

10.1.3 Device status

Icons on the display alert you to special device states.

Icon Location Description

Title bar Diagnostic message "Failure"

Title bar Diagnostic message "Maintenance request"

Title bar Diagnostic message "Check"

Title bar Diagnostic message "Out of specification"

Title bar Fieldbus or TCP/IP communication active

Title bar Hold active

At measured value Hold for the actuator (current output, limit contactor etc.) is active

1)
At measured value An offset has been added to the measured value

At measured value Measured value in "Bad" or "Alarm" state

At measured value Automatic temperature compensation active

At measured value Manual temperature compensation active

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Icon Location Description

Title bar Simulation mode active or Memocheck SIM connected

At measured value The measured value is influenced by a simulated value

At measured value The displayed measured value is simulated

1) Only pH or ORP measurement

If two or more diagnostics messages occur simultaneously, only the icon for the message
with the highest priority is shown on the display (for the order of priority according to
NAMUR, see the "Changing diagnostic information" section).

10.1.4 Assignment views

Assignment views, e.g. Channel assignment view, appear as the last function in many sections
of the menu.
You can use this function to see which actuators or functions are connected to an or a sensor
channel.
The assignments appear in hierarchical order.

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10.2 General settings

10.2.1 Basic settings

Path: Menu/Setup/General settings

Function Options Info

Device tag Customized text, 32 Select any name for your controller. Use the TAG name
characters for example.

Temperature unit Options

• °C
• °F
• K
Factory setting
°C

Current output range Options In accordance with Namur NE43, the linear range is
• 0 to 20 mA from 3.8 to 20.5 mA (Current output range="4 to
• 4 to 20 mA 20 mA") or from 0 to 20.5 mA (Current output
range="0 to 20 mA"). If the range is exceeded or
Factory setting
undershot, the current value stops at the range limit and
4 to 20 mA
a diagnostics message (460 or 461) is output.

Error current 0.0 to 23.0 mA The function meets NAMUR NE43.

Set the current value that should be output at the
Factory setting
current outputs in the event of an error.
21.5 mA

The value for "Error current" should be outside the measuring range. If you decided that your Current output range
= "­0 to 20 mA", you should set an error current between 20.1 and 23 mA. If the Current output range
= "4 to 20 mA" you could also define a value < 4 mA as the error current.
The device allows an error current within the measuring range. In such instances pay attention to possible affects
this may have on your process.

Alarm delay 0 to 9999 s The system only displays the errors that are present
longer than the set delay time. This makes it possible to
Factory setting
suppress messages that only occur briefly and are caused
0s
by normal process-specific fluctuations.

Device Hold Options You can enable an immediate, general hold here. The
• Disabled function acts in the same way as the "HOLD" soft key in
• Enabled the measuring menus.
Factory setting
Disabled

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10.2.2 Date and time

Path: Menu/Setup/General settings/Date/Time

Function Options Info

Set date Depends on the format Editing mode:

Day (two-digit): 01 to 31
Month (two-digit): 01 to 12
Year (four-digit): 1970 to 2106

Set time Depends on the format Editing mode:

hh (hour): 00 to 23 / 0 am to 12 pm
mm (minutes): 00 to 59
ss (seconds): 00 to 59

Extended setup

Date format Options Decide which date format you want to use.
• DD.MM.YYYY
• YYYY-MM-DD
• MM-DD-YYYY
Factory setting
DD.MM.YYYY

Time format Options Decide whether you want to use the 12-hour or 24-hour
• HH:MM am (12h) clock. Seconds can also be displayed with the latter
• HH:MM (24h) version.
• HH:MM:SS (24h)
Factory setting
HH:MM:SS (24h)

Time zone Options If no time zone is selected, then Greenwich Mean Time
• None is used (London).
• Choice of 35 time zones
Factory setting
None

DST Options The controller adapts the summertime/normal time

• Off changeover automatically if you choose European or
• Europe American daylight saving time.
• USA Manual means that you can specify the start and end of
• Manual daylight saving time yourself. Here, two additional
submenus are displayed in which you specify the
Factory setting
changeover date and time.
Off

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10.2.3 Automatic hold

Path: Menu/Setup/General settings/Automatic hold

Function Options Info

Device specific hold

Setup menu Options Decide whether a hold should be output at the current
• Disabled output when the particular menu is opened.
Diagnostics menu • Enabled
Factory setting
Disabled

Calibration active Factory setting

Enabled

Hold release time 0 to 600 s The hold is maintained for the duration of the delay
time when you switch to the measuring mode.
Factory setting
0s

If a device-specific hold is activated, any cleaning previously started is interrupted. When

a hold is active you can only start manual cleaning.

10.2.4 Logbooks
Logbooks record the following events:
• Calibration/adjustment events
• Operator events
• Diagnostic events
Here you define how the logbooks should store the data.
In addition, you can also define individual data logbooks . Assign the logbook name and select
the measured value to be recorded. You can set the scan time (Scan time) individually for every
data logbook.
Further information on the logbooks → ä 127.

Path: Menu/Setup/General settings/Logbooks

Function Options Info

Logbook ident Free text Part of the file name when exporting a logbook.

Event logbook Options All diagnostic messages are recorded

• Off
Ring buffer
• Ring buffer
If the memory is full, the most recent entry
• Fill up buffer
automatically overwrites the oldest entry.
Factory setting Fill up buffer
Ring buffer If the memory is full, there is an overflow, i.e. no new
values can be saved. The controller displays a
corresponding diagnostic message. The memory then
has to be cleared manually.

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Path: Menu/Setup/General settings/Logbooks

Function Options Info

Overflow warnings
Event logbook="Fill up buffer"

Calibration logbook Options Decide whether you want to receive a diagnostic

• Off message from the controller in the event of fill-up buffer
Diagnostic logbook • On overrun of the logbook in question.

Configuration logbook Factory setting

Off

Source of data Read only The assigned measuring channel is displayed

Measuring parameter Read only Plain-text information on the parameter that is being
recorded

Main value Read only Information on the main value and the unit.

Unit Read only

Data logbooks

New You can create a maximum of 8 data logbooks.

Logbook name Customized text, 20

characters

Source of data Options Select a data source for the logbook entries. You can
• Sensor inputs choose from connected sensors, available controllers,
• Controller current inputs, fieldbus signals and mathematical
• Current inputs functions.
• Fieldbus signals
• Mathematical functions
Factory setting
None

Measured value Options You can record different measured values depending on
• depend onSource of data the data source.
Factory setting
None

Scan time 00:00:01 to 01:00:00 Minimum interval between two entries

Format: HH:MM:SS
Factory setting
00:01:00

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Path: Menu/Setup/General settings/Logbooks

Function Options Info

Data logbook Options Ring buffer

• Off If the memory is full, the most recent entry
• Ring buffer automatically overwrites the oldest entry.
• Fill up buffer Fill up buffer
If the memory is full, there is an overflow, i.e. no new
Factory setting
values can be saved. The controller displays a
Off
corresponding diagnostic message. The memory then
has to be cleared manually.

Add another logbook Action Only if you want to create another data logbook
immediately.
You add a new data logbook at a later date using New.

Finished Action This allows you to exit the menu New.

Start/stop Action Appears if you have created more than one data
simultaneously logbook. With one mouse click, you can start or stop
recording all the data logbooks.

"Logbook name" The name of this submenu is based on the name of the
logbook and only appears once you have created a
logbook.

This menu appears several times if you have several data logbooks.

Source of data Read only This is for information purposes only. If you want to
record another value, delete this logbook and create a
Measured value new data logbook.

Log time left Read only Displays the days, hours and minutes remaining until
the logbook is full.
Data logbook="Fill up
buffer"

Log size Read only Displays the number of entries remaining until the
logbook is full.
Data logbook="Ring buffer"

Logbook name Customized text, 20 You can change the name here again.
characters

Scan time 00:00:01 to 01:00:00 As above

Minimum interval between two entries
Factory setting
Format: HH:MM:SS
00:01:00

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Path: Menu/Setup/General settings/Logbooks

Function Options Info

Data logbook Options Ring buffer

• Off If the memory is full, the most recent entry
• Ring buffer automatically overwrites the oldest entry.
• Fill up buffer Fill up buffer
If the memory is full, there is an overflow, i.e. no new
Factory setting
values can be saved. The controller displays a
Off
corresponding diagnostic message. The memory then
has to be cleared manually.

Line plotter Menu to define the graphic display

Axes Options Should the axes (x, y) be displayed (On) or not (Off)?
• Off
• On
Factory setting
On

Orientation Options You can choose whether the value curves should be
• Horizontal displayed from left to right ("Horizontal") or from top to
• Vertical bottom ("Vertical").
If you want to display two data logbooks simultaneously,
Factory setting
make sure that both logbooks have the same settings
Horizontal
here.

X-Description Options Decide whether a description should be displayed for the

• Off axes and whether gridlines should be shown. In
Y-Description • On addition, you can also decide whether pitches should be
displayed.
Grids Factory setting
On
Pitches

X Pitch/Grid distance 10 to 50% Specify the pitches.

Y Pitch/Grid distance Factory setting

10 %

Remove Action This action removes the data logbook. Any data that
have not been saved are lost.

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Example for setting up a new data logbook (for sensors)

1. Menu/Setup/General settings/Logbooks/Data logbooks/New:
a. Logbook name: Assign a name, e.g. "01".
b. Source of data: Select a data source, e.g. the sensor connected to channel 1 (CH1).
c. Measured value: Select the measured value that you want to record.
d. Scan time: Specify the interval between two logbook entries.
e. Data logbook: Activate the logbook. Specify the type of memory, "Ring buffer" or "Fill up
buffer".
2. ../Finished: Execute this action.
--> Your new logbook now appears in the list of data logbooks.
3. Select the data logbook with the name "01".
4. If you selected "Fill up buffer" you can also decide whether you want to receive a diagnostic
message in the event of memory overrun.
5. Depending on the type of memory selected, you receive information about the memory
space (for "Ring buffer") or the time remaining until memory overrun "Fill up buffer").
6. Define the graphic display mode in the "Line plotter" submenu.

10.2.5 Extended setup

Diagnostics settings
The list of diagnostic messages displayed depends on the path selected. There are
device-specific messages, and messages that depend on what sensor is connected.

Path: ... /Extended setup/Diagnostics settings/Diag. behavior

Function Options Info

List of diagnostic messages Select the message to be changed. Only then can you
make the settings for this message.

Diag. code Read only

Diagnostic message Options You can deactivate or reactivate a diagnostics message

• On here.
• Off
Deactivating means:
Factory setting • No error message in the measuring mode
Depends on the message • No error current at the current output

Error current Options Decide whether an error current should be output at the
• On current output if the diagnostic message display is
• Off activated.
Factory setting
Depends on the message

Status signal Options The messages are divided into different error categories
• Maintenance (M) in accordance with NAMUR NE 107.
• Out of specification (S)
Decide whether you want to change a status signal
• Function check (C)
assignment for your application.
• Failure (F)
Factory setting
Depends on the message

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Path: ... /Extended setup/Diagnostics settings/Diag. behavior

Function Options Info

Diag. output Options You can use this function to select an output to which
• None the diagnostic message should be assigned.
• Alarm relay
Before you can assign the message to an output, you
• Relay 1 to n (depends on
must first configure a relay output to "Diagnostics"
the device version)
(Menu/Setup/Outputs, assign the "Diagnostics" function
Factory setting and set the Operating mode to "as assigned").
None

An alarm relay is always available, regardless of the device version. Other relays are optional.

Cleaning program (for Options Decide whether the diagnostic message should trigger a
sensors) • None cleaning program.
• Cleaning 1 You can define the cleaning programs under:
• Cleaning 2 Menu/Setup/Additional functions/Cleaning.
• Cleaning 3
• Cleaning 4
Factory setting
None

Detail information Read only Here you can find more information on the diagnostic
message and instructions on how to resolve the
problem.

HART bus address

If Multidrop is active (Bus address > 0), the current at current output 1 is fixed at 4 mA.
Here, it does not matter what function has been assigned to the output (measured
value/controller etc.). Current simulation is no longer possible.

Path: Menu/Setup/General settings/Extended setup/HART

Function Options Info

Bus address 0 to 63 You can change the device address to integrate several
HART devices in a single network (Multidrop mode).
Factory setting
0

If you reset the device to the factory settings (Diagnostics/Systemtest/Reset/Factory

default), the bus address is not reset. Your setting is retained.

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PROFIBUS DP

Path: Menu/Setup/General settings/Extended setup/PROFIBUS

Function Options Info

Enable Options You can switch off PROFIBUS communication at this

• Off point. The software can then only be accessed via local
• On operation.
Factory setting
Off

Termination Read only If the device is the last in the bus, you can terminate via
the hardware.
--> BA00444C, "Electrical connection" section

Bus address 1 to 125 If you have addressed the bus via hardware (DIP
switches on the module, --> BA00444CBA01225C), you
can only read the address here.
If an invalid address is set via the hardware, you have to
assign a valid address for your device either here or via
the bus.

Ident number Options

• Automatic
• PA-Profile 3.02 (9760)
• Liquiline CM44x (155D)
• Liquiline CM44xR (155D)
• Liquistation CSFxx
(155C)
Factory setting
Automatic

Modbus

Path: Menu/Setup/General settings/Extended setup/Modbus

Function Options Info

Enable Options You can switch off Modbus communication at this point.
• Off The software can then only be accessed via local
• On operation.
Factory setting
Off

Termination Read only If the device is the last in the bus, you can terminate via
the hardware.
--> BA00444C(CM44x) or BA01225C (CM44xR),
"Electrical connection" section

Settings

Transmission Mode Options The transmission mode is displayed depending on the

• TCP version ordered. In the case of RS485 transmission, you
• RTU can choose between "RTU" and "ASCII".
• ASCII

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Path: Menu/Setup/General settings/Extended setup/Modbus

Function Options Info

Watchdog 0 to 999 s If no data transmission takes place for longer than the
time set, this is an indicator that communication has
Factory setting
been interrupted.
5s
After this time, input values received via the Modbus are
considered to be invalid.

EtherNet/IP
EtherNet Industrial Protocol is an open fieldbus standard of the Open DeviceNet Vendor
Association (ODVA). --> www.odva.org

Path: Menu/Setup/General settings/Extended setup/Ethernet

Function Options Info

Enable Options You can switch ethernet communication on and off at

• Off this point.
• On
Factory setting
On

Settings

Link settings Options Transmission methods of the communication channels

• Auto negotiation • Full duplex:
• 10MBps Half duplex Data can be transmitted simultaneously in both
• 10MBps Full duplex directions.
• 100MBps Half duplex • Half-duplex:
• 100MBps Full duplex Data can only be transmitted alternately in both
directions, i.e. not at the same time.
Factory setting
Auto negotiation Source: Wikipedia

DHCP Options The Dynamic Host Configuration Protocol (DHCP) makes

• Off it possible to assign the network configuration to clients
• On via a server. With DHCP, it is possible to automatically
integrate the device into an existing network without
Factory setting
the need for manual configuration. Normally, the client
Off
need only be configured for automatic retrieval of the IP
addresses. During startup, the IP address, the netmask
and the gateway are retrieved from a DHCP server.

IP-Address xxx.xxx.xxx.xxx An IP address is an address in computer networks which

are based on the Internet protocol (IP).
Factory setting
192.168.1.212

Netmask xxx.xxx.xxx.xxx On the basis of the IP address of a device, the netmask

specifies which IP addresses this device searches for in
Factory setting
its own network and which addresses it could access in
255.255.255.0
other networks via a router. It therefore divides the IP
address into a network part (network prefix) and a
device part. The network part must be identical for all
devices in the individual network, and the device part
must be different for every device within the network.

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Path: Menu/Setup/General settings/Extended setup/Ethernet

Function Options Info

Gateway x.x.x.x A gateway (protocol converter) enables communication

between networks that are based on completely
Factory setting
different protocols.
0.0.0.0

MAC-Address Read only The MAC address (Media Access Control address) is the
hardware address of every individual network adapter
which is used to uniquely identify the device in a
computer network.

EtherNetIP Port 44818 Read only A port is a part of an address which assigns data
segments to a network protocol.

Web server

Path: Menu/Setup/General settings/Extended setup/Webserver

Function Options Info

Webserver Options You can switch web server communication on and off at
• Off this point.
• On
Factory setting
On

Webserver TCP Port 80 Read only The Transmission Control Protocol (TCP) is an
arrangement (protocol) as to how data should be
exchanged between computers.
A port is a part of an address which assigns data
segments to a network protocol.

Webserver login Options You can switch user administration on and off at this
• Off point. This makes it possible to create multiple users
• On with password access.
Factory setting
On

User administration

List of users already View/edit You can change user names or passwords or delete
created users. A user is already created at the factory: "admin"
with password "admin".

New user:

Name Free text Create new user

Enter new user password Free text 1. Press "INSERT"

2. Assign any name to the new user.
Confirm new user password Free text
3. Select a password for the user.
Change user password Free text
4. Confirm the password.
 You can now change the password at any time.

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Data management

Firmware update
Please contact your local sales office for information on firmware updates available for your
controller and its compatibility with earlier versions.
Your current firmware version can be found at: Menu/Diagnostics/System
information/Software version.
First save your current setup on an SD card since a firmware update overwrites your
settings with the factory settings. After updating the firmware, you can restore your setup
by uploading it from the SD card.

To install a firmware update, you must have the update available on an SD card.
1. Insert the SD card into the controller card reader.
2. Go to: Menu/Setup/General settings/Extended setup/Data management/Firmware update.
 The update files on the SD card are displayed.
3. Select the desired update and select yes when the following question is displayed: The
current firmware will be overwritten. After this the device will reboot. Do you want to
proceed?
 The firmware is loaded and the device is then started with the new firmware.

Saving the setup

Saving the setup gives you the following advantages:
• Quick and easy to restore a setup following a firmware update
• Copying settings for other devices
• Quick and easy switching between various setups, e.g. for different user groups or for
recurring sensor type change
• Restoring a tried-and-tested setup, e.g. if you have changed a lot of settings and no longer
know what the original settings were
1. Insert the SD card into the controller card reader.
2. Go to: Menu/Setup/General settings/Extended setup/Data management/canada.
3. Assign a file name (Name).
4. Then select "Save".
5. If you have already assigned the file name, you will be asked whether you want to overwrite
the existing setup.
6. Select "OK" to confirm, or cancel the action and give the file a new name.
 Your setup is stored on the SD card and you can upload it quickly to the device at a later
date.

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Loading the setup

You can load a setup you have saved quickly and easily
When you load a setup, the current configuration is overwritten. Note that cleaning and
controller programs could be active. Do you want to continue anyway?
1. Insert the SD card into the controller card reader.
2. Go to: Menu/Setup/General settings/Extended setup/Data management/Load setup.
 A list of all the setups on the SD card is displayed.
3. Select the desired setup.
 The device then displays the following message:The current parameters will be
overwritten and the device will reboot. Warning: Please note that cleaning and
controller programs can be active. Do you want to proceed?
4. Select "OK" to confirm or cancel the action.
 The desired setup is restored after restarting the device.

Exporting the setup

Exporting the setup gives you the following advantages:
• Export in XML format with a stylesheet for formatted display in an XML-compatible
application such as Microsoft Internet Explorer
• Importing the data (drag and drop the XML file into a browser window)
1. Insert the SD card into the controller card reader.
2. Go to: Menu/Setup/General settings/Extended setup/Data management/Export setup.
3. Assign a file name (Name).
4. Then select "Export".
5. If you have already assigned the file name, you will be asked whether you want to overwrite
the existing setup.
6. Select "OK" to confirm, or cancel the action and give the file a new name.
 Your setup is saved on the SD card in a folder named "Device".
You cannot upload the exported setup to the device again. You must use the "Save setup"
function for this purpose. This is the only way you can save a setup to an SD card and reload
it later on or upload it to other devices.

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Activation code
You require activation codes for:
• Additional functions, e.g. fieldbus communication
• Software upgrades

If activation codes are available for your device, these codes are provided on the inner
nameplate. The corresponding device functions are activated at the factory. You only
require the codes if servicing the device.
1. Enter the activation code: Menu/Setup/General settings/Extended setup/Data
management/Activation code.
2. Confirm your entry.
 Your new hardware or software function is activated and can be configured.
The table below tells you what functions an activation code enables:
Function Activation code beginning with:

Second Memosens input (CM442 only) 062...

Two current outputs (BASE-E module only) 081...

HART 0B1...

PROFIBUS DP 0B3...

Modbus TCP 0B4...

Modbus RS485 0B5...

EtherNet/IP 0B6...

Measuring range switching, set 1 211...

Measuring range switching, set 21) 212...

Feedforward control 220...

Chemoclean Plus 25...

1) When you order the "Measuring range switching" option, you receive two activation codes. Enter both codes to
have two sets for measuring range switching.

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10.3 Current inputs

The input can be used as the data source for limit switches and logbooks, for example.
Furthermore, external values can be made available as set points for controllers.

Path: Menu/Setup/Inputs/Current input %0V x:y1)

Function Options Info

Mode Options Select the same current range as in the data source
• Off (connected device).
• 0 to 20 mA
• 4 to 20 mA
Factory setting
4 to 20 mA

Input mode Options Select the input variable.

• Parameter
• Current
Factory setting
Current

Meas. value format Options Specify the number of decimal places.

• #
• #.#
• #.##
• #.###
Factory setting
#.#

Parameter name Free text Assign a useful name, such as the parameter name,
which the data source uses.
Input mode "Parameter"

Unit of measure Free text You cannot choose the unit from a list. If you want to use
a unit, you must enter it manually here.
Input mode "Parameter"

Lower range value -20.0 to Upper range value Enter the measuring range. The lower and upper range
<engineering unit> values are assigned to the 0 or 4 mA value and the 20
Input mode "Parameter"
mA value respectively.
Factory setting
The system uses the engineering unit which you entered
0.0 <engineering unit>
beforehand.
Upper range value Upper range value to
10000.0 <engineering unit>
Input mode "Parameter"
Factory setting
10.0 <engineering unit>

Damping 0 to 60 s The damping causes a floating average curve of the

measured values over the time specified.
Factory setting
0s

1) x:y = slot no. : input number

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10.4 Outputs
10.4.1 Current outputs
The basic version of the device always has two current outputs.
You can configure additional current outputs with extension modules.
Under Menu/Setup/General settings set the current range of 0 to 20 mA or 4 to 20 mA.
Possible applications
• For outputting a measured value to a process control system or an external recorder
• For outputting a manipulated variable to connected actuators
The current output curve is always linear.

Path: Menu/Setup/Outputs/Current output x:y (slot:output number)

Function Options Info

Current output Options Use this function to activate or deactivate a variable

• On being output at the current output
• Off
Factory setting
Off

Source of data Options The sources of data on offer depend on your device
• None version. all the sensors and controllers connected to
• Connected inputs inputs are available for selection.
• Controller
Factory setting
None

Measured value Options The measured value you can select depends on the
• None option selected under "Source of data".
• Depends on theSource of
data
Factory setting
None

The next table lists the measured values available depending on the data source.
Apart from measured values from connected sensors, you can also select a controller as the data source. The best
way to do so is by using the "Additional functions" menu. Here, you can also select and configure the current
output for outputting the controlled variable.

Range lower value Selection range and factory You can output the entire measuring range of the
settings depend on: "Measured value" or just some of it at the current output.
Range upper value "Measured value" For this purpose, specify the upper and lower range
values in accordance with your requirements.

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Path: Menu/Setup/Outputs/Current output x:y (slot:output number)

Function Options Info

Hold behavior Options Freeze

• Freeze The device freezes the last current value.
• Fixed value
• None Fixed value
You define a fixed current value that is output at the
Factory setting output.
Depends on the
channel:output None
A hold does not affect this current output.

Hold current 0.0 to 23.0 mA Specify which current should be output at this current
output in the event of a hold.
Hold behavior="Fixed value" Factory setting
22.0 mA

Measured valuedepending on theSource of data

Source of data Measured value

pH Glass Options
• Raw value mV
pH ISFET • pH
• Temperature

ORP Options
• Temperature
• ORP mV
• ORP %

Oxygen (amp.) Options

• Temperature
Oxygen (opt. WW) • Partial pressure
• Concentration liquid
• Saturation
• Raw value nA (only Oxygen (amp.))
• Raw value μs (only Oxygen (opt. WW))

Cond i Options
• Temperature
Cond c • Conductivity
• Resistance (only Cond c)
• Concentration (only Cond i)

Chlorine Options
• Temperature
• Current
• Concentration

ISE Options
• Temperature
• pH
• Ammonium
• Nitrate
• Potassium
• Chloride

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Measured valuedepending on theSource of data

Source of data Measured value

TU/TS Options
• Temperature
• Turbidity g/l
• Turbidity FNU

Nitrate Options
• Temperature
• NO3
• NO3-N

Ultrasonic interface(interface Options

measurement) • Interface
• Turbidity

SAC Options
• Temperature
• SAC
• Transm.
• Absorption
• COD
• BOD

Controller 1 Options
• Bipolar(only current outputs)
Controller 2 • Unipolar+
• Unipolar-

Mathematical functions All the mathematical functions can also be used as a data source and the
calculated value can be used as the measured value.

Outputting the controller manipulated variable via the current output

Assign "Unipolar+" to the output to which an actuator that can increase the measured value is
connected. Assign "Unipolar-" to the output to which an actuator that can decrease the measured
value is connected.
To output the manipulated variable of a two-sided controller, positive manipulated variables
and negative manipulated variables generally have to be output to different actuators, as most
actuators are able to influence the process in one direction only (not in both). For this purpose,
the instrument splits the bipolar manipulated variable y into two unipolar manipulated
variables, y+ and y-.
Only the two unipolar manipulated variable parts are available for selection for outputting to
modulated relays. If outputting the values via a current output, you also have the possibility of
outputting the bipolar manipulated variable y to one current output only (split range).

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10.4.2 Alarm relay and optional relays

The basic version of the device always has one alarm relay.
Additional relays are also available depending on the version of the device.
The following functions can be output via a relay
• Limit switch status
• Controller manipulated variable for controlling an actuator
• Diagnostics messages
• Status of a cleaning function in order to control a pump or a valve
You can assign a relay to multiple inputs in order to clean several sensors with just one
cleaning unit, for example.

Path: Menu/Setup/Outputs/Alarm relay or relay at channel no.

Function Options Info

Function Options The following functions depend on the option selected.

• Off These versions are illustrated individually in the
• LimitSwitch following section to provide a clearer understanding of
• Controller the options.
• Diagnostics
Function="Off" switches off the relay function and means
• Cleaning
no further settings are required.
Factory setting
Off

Outputting the status of a limit switch

Function="LimitSwitch"

Function Options Info

Source of data Options Select the limit switch via which the status of the relay is
• None to be output.
• Limit switch 1 The limit switches are configured in the
• Limit switch 2 "Setup/Additional functions/Limit switches" menu.
• Limit switch 3
• Limit switch 4
• Limit switch 5
• Limit switch 6
• Limit switch 7
• Limit switch 8
Factory setting
None

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Outputting the manipulated variable of a controller

To output a controller manipulated variable via a relay, the relay is modulated. The relay is
energized (pulse, t1) and is then de-energized (interval, t0).

Function="Controller"

Function Options Info

Source of data Options Select the controller that should act as the data source.
• None
• Controller 1
• Controller 2
Factory setting
None

Operating mode Options PWM=pulse width modulation

• PWM PFM=pulse frequency modulation
• PFM
Factory setting
PWM

Types of modulation:
1. PWM (pulse width modulation):
The duty cycle is varied within a period T (T=t1+t0). The cycle duration remains constant.

Typical application: solenoid valve

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2. PFM (pulse frequency modulation):

Here, pulses of a constant length (t1) are output and the interval between the pulses varies
(t0). At a maximum frequency, t1 = t0.

Typical application: dosing pump

Function="Controller"

Function Options Info

Actuator type Options Here you specify what part of the controller should
• None power the relay. "Unipolar+" is the part of the
• Unipolar- manipulated variable which the controller uses to
• Unipolar+ increase the process value (e.g. for heating purposes).
On the other hand, select "Unipolar-" if you want to
Factory setting
connect an actuator to the relay that causes the
None
controlled variable to drop (e.g. for cooling purposes).

Cycle duration (Shortest turn-on time) to Specify the cycle duration within which the duty cycle
999.0 s should be varied (only PWM).
Operating mode="PWM"
Factory setting
10.0 s

The settings for Cycle duration and Shortest turn-on time mutually affect one another. The following applies:
Cycle duration ≥ Shortest turn-on time.

Shortest turn-on time 0.3 s to (Cycle duration) Pulses that are shorter than this limit value are not
output in order to conserve the actuator.
Operating mode="PWM" Factory setting
0.3 s

Maximum frequency 1 to 180 min-1 Maximum number of pulses per minute

The controller calculates the pulse duration based on
Operating mode="PFM" Factory setting
this setting.
60 min-1

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Outputting diagnostics messages via the relay

You can output two categories of diagnostics messages via the relay:
1. Diagnostic messages from one of the 4 Namur classes (→ ä 121)
2. Diagnostic messages from one of the 4 Namur classes
(--> see the "Adjusting diagnostics information" section for more information on the
Namur classes)
3. Diagnostics messages which you have individually assigned to the relay output
A message is individually assigned to the relay output at 2 specific points in the menu:
• Menu/Setup/General settings/Diagnostics/Device behavior
(device-specific messages)
• Menu/Setup/Inputs/../Diagnostics settings/Diag. behavior
(sensor-specific messages)
Before being able to assign the relay output to a special message in "Device behavior", you
must first configure Outputs/relay x:y or /Alarm relay/Function="Diagnostics".

Function="Diagnostics"

Function Options Info

Operating mode Options as assigned

• as assigned If this option is selected, the diagnostics messages which
• Namur M you have individually assigned to the relay are output via
• Namur S the relay.
• Namur C
• Namur F Namur M ... F
If you decided to use one of the Namur classes, all the
Factory setting messages that are assigned to the individual class are
as assigned output via the relay.
You can also change the Namur class assignment for
every diagnostics message.
(Menu/Setup/General settings/Diagnostics/Device
behavior or Menu/Setup/Inputs/../Diagnostics
settings/Diag. behavior)

Attributed diagnostic Read only All the messages assigned to the relay output appear on
messages List of diagnostic messages the display.
You do not have the option of editing the information
Operating mode="as assigned"
here.

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Outputting the status of a cleaning function

Function="Cleaning"

Function Options Info

Assignment Options Here you can specify how a cleaning function should be
• None displayed for the alarm relay.
• Cleaning 1 - Water
You can define the cleaning programs under:
• Cleaning 1 - Cleaner
Menu/Setup/Additional functions/Cleaning.
• Cleaning 2 - Water
• Cleaning 2 - Cleaner
• Cleaning 3 - Water
• Cleaning 3 - Cleaner
• Cleaning 4 - Water
• Cleaning 4 - Cleaner
Factory setting
None

10.4.3 HART
Specify which device variables should be output via HART communication.
You can define a maximum of 16 device variables:
‣ Define the data source. You can choose from the sensor inputs and the controllers.
‣ From the source, select the measured value that should be output.
‣ Define how the device should behave in the event of a "Hold".
‣ The configuration options for "Source of data", "Measured value" and "Hold behavior" are
identical to those described in the "Outputs/Current outputs" section. Please refer to this
section for more information.
‣ Please note that if you select Hold behavior="Freeze", the system not only flags the status but
also actually "freezes" the measured value.
More information is provided in BA00486C "HART communication".

10.4.4 PROFIBUS DP

Device variables (device --> PROFIBUS)

Specify which process values should be mapped to the PROFIBUS function blocks and are
thereby available for transmission via PROFIBUS communication.
You can define a maximum of 16 device variables (AI Blocks):
‣ Define the data source.
Choose between sensor inputs, current inputs or mathematical functions whose measured
values should be transmitted.
‣ From the data source, select the measured value to be transmitted.
In addition, you can define 8 binary variables (DI Blocks):
‣ Define the data source.
Select the limit switch or relay whose status should be transmitted.

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PROFIBUS variables (PROFIBUS --> device)

Not in the "Menu/Setup/Outputs" menu
‣ A maximum of 4 analog (AO) and 8 digital (DO) PROFIBUS variables are available as
measured values in the controller, limit switch or current output menus.
‣ Example: Using an AO or DO value as the set point for the controller
– "Menu/Setup/Additional functions/Controller 1" menu
– In the menu mentioned, define PROFIBUS as the data source.
– Select the desired analog output (AO) or digital output (DO) as the measured value.
Additional information is provided in the SD01188C document on the CD.

10.4.5 Modbus RS485 and Modbus TCP

Specify which process values should be output via Modbus RS485 communication or via Modbus
TCP.
In the case of Modbus RS485, you can switch between the RTU and the ASCII protocol.
You can define a maximum of 16 device variables:
‣ Define the data source. You can choose from sensor inputs and controllers.
‣ From the source, select the measured value that should be output.
‣ Define how the device should behave in the event of a "Hold".
‣ The configuration options for "Source of data", "Measured value" and "Hold behavior" are
identical to those described in the "Outputs/Current outputs" section. Please refer to this
section for more information.
‣ Please note that if you select Hold behavior="Freeze", the system not only flags the status but
also actually "freezes" the measured value.
Additional information is provided in the SD01189C document.

10.4.6 EtherNet/IP
Specify which process values should be output via EtherNet/IP communication.
You can define a maximum of 16 analog device variables (AI):
‣ Define the data source. You can choose from sensor inputs, binary inputs and controllers.
‣ From the source, select the measured value that should be output.
‣ Define how the device should behave in the event of a "Hold".
‣ In the case of controllers, also specify the type of actuating variable.
‣ Please note that if you select Hold behavior="Freeze", the system not only flags the status but
also actually "freezes" the measured value.
Furthermore you can define 8 digital device variables (DI):
‣ You only define the data source here. You can choose from relays, binary inputs and limit
contactors.
Additional information is provided in the SD01293C document.

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10.5 Binary inputs and outputs

The optional "DIO" hardware module with 2 digital inputs and 2 digital outputs enables the
following:
• via a digital input signal
– measuring range switching for conductivity (upgrade code required, see accessories)
– an external hold
– a cleaning interval to be triggered
– a PID controller to be switched on and off, e.g. via the proximity switch of CCA250
– the use of the input as an "analog input" for pulse-frequency modulation (PFM)
• via a digital output signal
– the static transmission (similar to a relay) of diagnostic states, point level switch states etc.
– the dynamic transmission (comparable to a non-wearing "analog output") of PFM signals,
e.g. to control dosing pumps.

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10.5.1 Application examples

Chlorine control with feedforward control

a0020123
Fig. 84: Example of chlorine control with feedforward control
1 Connection of the inductive proximity switch INS of the CCA250 assembly at the digital input of the DIO module for
enabling the controller
2 Connection of the signal from a flowmeter to the digital input of the DIO module using the pulse-frequency
modulation (=PFM, setting in the Liquiline firmware) for feedforward control
3 Activation of a (pulse) dosing pump via a digital output of the DIO module using the PFM
A Dosing pump

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Chlorine control with feedforward control

Utilize the advantage of the effectively wear-free control with binary outputs versus a control
system with relay. It is possible to achieve virtually continuous dosing using a dosing pump with
higher input frequency through pulse frequency modulation (PFM).
1. Connect the proximity switch INS from assembly CCA250 to a digital input of the DIO
module. Configure a controller in the software, selecting the binary input for the function
"Controller Enable" which the proximity switch is connected to. Leave the "Signal type" in the
inputs menu at the factory setting "Static signal" as the selected input.
2. Connect the flowmeter value to the second input of the DIO module. Set the "Signal type" for
this input to "PFM" in the inputs menu and select the corresponding measured value.
 You can now use this input in the controller menu as the disturbance variable for your
controller 1). To do so, in the submenu "Disturbance variable" select the binary input to
which you connected the flow measured value as the "Source of data."
3. You can activate a dosing pump through PFM via a digital output of the DIO module. In the
outputs menu, set the "Signal type" of the corresponding binary output to "PFM" and use the
previously configured controller as the "Source of data." Observe your dosing's direction of
action, so that you correctly install the "Actuator type."
You must make additional settings in the controller menu to fully customize the control to
your process conditions.

1) An activation code, Order No. 71211288, is necessary for the "feedforward control" function.

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CM44x as cleaning master

a0020124
Fig. 85: Example of a central cleaning control
1 External cleaning trigger at the binary input
2 Transferring the external hold over binary output to other measuring devices without connected cleaning functions
3 Transferring the cleaning trigger over a binary output to other self-cleaning measuring points

CM44x as "cleaning master"

1. An external trigger actuates a cleaning at the master. A cleaning unit is connected over a
relay or a binary output, for example.
2. The cleaning trigger is transferred to another device via a binary output. This does not have
its own connected cleaning unit, but its sensors are installed in the medium affected by
cleaning the master and are set to hold by the trigger.
3. The trigger is transferred via an additional binary output to another device, whose
connected sensors have their own cleaning units. The signal can be used to simultaneously
activate a self-cleaning with the master.

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10.5.2 Binary input configuration

Path: Menu/Setup/Inputs/Binary input x:y1)

Function Options Info

Binary input Options Switching the input on/off

• Off
• On
Factory setting
On

Signal type Options Select the signal type.

• Static signal
Static signal
• PFM
Use this setting to read out the position of, for example,
Factory setting an on/off switch, an inductive proximity switch or a PLC
Static signal binary output.
Signal application: for measuring range switching,
acceptance of an external hold, as a cleaning trigger or
for controller activation
PFM
The PFM setting produces a pulse-frequency-modulated
signal that is subsequently available on the device as a
quasi-continuous process value.
Example: Measuring signal of a flowmeter

Signal type= "Static signal"

Signal level Options Determine which input signal levels should activate, for
• High example, measuring range switching or a cleaning.
• Low
High
Factory setting Input signals between 11 and 30 V DC
High
Low
Input signals between 0 and 5 V DC

Signal type= "PFM"

Max. frequency 100.00 to 1000.00 Hz Maximum frequency of the PFM input signal
Is to equal the maximum possible upper limit of the
Factory setting
measuring range.
1000.00 Hz
If the value selected is too small, higher frequencies will
not be detected. If the value is too large, on the other
hand, the resolution for small frequencies will be
relatively inexact.

Meas. value format Options Specify the number of decimal places.

• #
• #.#
• #.##
• #.###
Factory setting
#.##

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Path: Menu/Setup/Inputs/Binary input x:y1)

Function Options Info

Input mode Options Frequency

• Frequency Display in Hz in the measuring menu
• Parameter
Parameter
Factory setting You subsequently determine the parameter name and
Frequency unit. These are then displayed in the measuring menu.

Parameter name Free text Define a name for the parameter, e.g. "flow rate."
Input mode= "Parameter"

Unit of measure Free text Determine the unit in which your parameter should be
displayed, e.g." l/min."
Input mode= "Parameter"

Lower range value -2000.00 to 0.00 Your previously defined unit is additionally displayed.
The start of measuring range corresponds to a frequency
Input mode= "Parameter" Factory setting
of 0 Hz.
0.00

Upper range value 0.00 to 10000.00 The end of measuring range corresponds to the
maximum frequency defined above. The displayed unit
Input mode= "Parameter" Factory setting
is the one predefined by you.
0.00

Damping 0 to 600 s The damping generates a floating average curve of the

measured value over the specified time.
Factory setting
0s

1) x:y = slot no. : input number

10.5.3 Configuration of binary outputs

Path: Menu/Setup/Outputs/Binary output x:y1)

Function Options Info

Binary output Options Switching the output on/off

• Off
• On
Factory setting
On

Signal type Options Select the signal type.

• Static signal
Static signal
• PFM
Comparable to a relay: output of a diagnostic status or a
Factory setting limit contactor
Static signal
PFM
You can output a measured value, e.g. the chlorine value
or the manipulated variable of a controller.
It functions as a "wear-free" switching contact that can be
used to activate a dosing pump, for example.

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Path: Menu/Setup/Outputs/Binary output x:y1)

Function Options Info

Signal type= "PFM"

Max. frequency 1.00 to 1000.00 Hz Maximum frequency of the PFM output signal
Is to equal the maximum possible upper limit of the
Factory setting
measuring range.
1000.00 Hz

Meas. value format Options Specify the number of decimal places.

• #
• #.#
• #.##
• #.###
Factory setting
#.##

Source of data Options Source, whose value should be read out as a frequency
• None over the binary output.
• Sensor inputs
• Binary inputs
• Controller
• Fieldbus signals
• Mathematical functions
Factory setting
None

Measuring value Selection dependent on "Inputs" = everything except controllers

"Source of data"
Source of data = an input

Actuator type Options Determines which controller component the connected

• None actuator, e.g. the dosing pump, should trigger.
Source of data = a controller
• Bipolar
Unipolar+
• Unipolar+
Part of the manipulated variable that the controller uses
• Unipolar-
to increase the process value
Factory setting
None Unipolar-
For connected actuators that decrease the controlled
variable
Bipolar
"Split range"

Hold behavior Options Freeze

• Freeze The device freezes the last value.
• Fixed value
• None Fixed value
You define a fixed current value that is transmitted at
Factory setting the output.
Freeze
None
A hold does not affect this output.

Hold value 0 to 100 %

Hold behavior= "Fixed value" Factory setting
0%

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Path: Menu/Setup/Outputs/Binary output x:y1)

Function Options Info

Error behavior Options Freeze

• Freeze The device freezes the last value.
• Fixed value
Fixed value
Factory setting You define a fixed current value that is transmitted at
Fixed value the output.

Error value 0 to 100 %

Error behavior= "Fixed value" Factory setting
0%

Signal type= "Static signal"

Function Options Source for the outputted switching state

• None
The following functions depend on the option selected.
• Limit switches
Function = "None" switches the function off without
• Diagnostics message
requiring any settings.
• Cleaning
Factory setting
None

Assignments Multiple selection Here you can decide which binary outputs should be
• Cleaning 1 - Water used for activating the valves and pumps. Here you
Function= "Cleaning"
... concretely assign a control signal to the binary output
• Cleaning 4 - Cleaner for the cleaner/water dosing of a cleaning program.
You can define the cleaning programs under:
Menu/Setup/Additional functions/Cleaning.

Data sources Multiple selection Select the limit contactor to be transmitted over the
• Limit switch 1 binary output.
Function= "Limit switches"
... The limit switches are configured in the
• Limit switch 8 "Setup/Additional functions/Limit switches" menu.

Operating mode Options as assigned

• as assigned With this selection, the diagnosis messages are
Function= "Diagnostics
• Namur M transmitted over the binary output that you individually
message"
• Namur S allocated to it.
• Namur C
• Namur F Namur M ... F
When you choose one of the Namur classes, all
Factory setting messages allocated to that respective class are output.
as assigned You can also change the Namur class assignment for
every diagnostics message.
(Menu/Setup/General settings/Diagnostics/Device
behavior or Menu/Setup/Inputs/../Diagnostics
settings/Diag. behavior)

1) x:y = slot no. : input number

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10.6 Additional functions

10.6.1 Limit switch
There are different ways of configuring a limit switch:
• Assigning a switch-on and switch-off point
• Assigning a switch-on and switch-off delay for a relay
• Setting an alarm threshold and also outputting an error message
• Starting a cleaning function

Path: Menu/Setup/Additional functions/Limit switches/Limit switches 1 to 8

Function Options Info

Source of data Options Specify the input or output which should be the source of
• None data for the limit switch.
• Connected sensors
• Controllers available
Factory setting
None

Measuring value Options The measured value you can select depends on the
• None option selected under "Source of data".
• Depends on theSource of
data
Factory setting
None

Measured valuedepending on theSource of data

Source of data Measured value

pH Glass Options
• Raw value mV
pH ISFET • pH
• Temperature

ORP Options
• Temperature
• ORP mV
• ORP %

Oxygen (amp.) Options

• Temperature
Oxygen (opt. WW) • Partial pressure
• Concentration liquid
• Saturation
• Raw value nA (only Oxygen (amp.))
• Raw value μs (only Oxygen (opt. WW))

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Measured valuedepending on theSource of data

Source of data Measured value

Cond i Options
• Temperature
Cond c • Conductivity
• Resistance (only Cond c)
• Concentration (only Cond i)

Chlorine Options
• Temperature
• Current
• Concentration

ISE Options
• Temperature
• pH
• Ammonium
• Nitrate
• Potassium
• Chloride

TU/TS Options
• Temperature
• Turbidity g/l
• Turbidity FNU

Nitrate Options
• Temperature
• NO3
• NO3-N

Ultrasonic interface(interface Options

measurement) • Interface
• Turbidity

SAC Options
• Temperature
• SAC
• Transm.
• Absorption
• COD
• BOD

Controller 1 Options
• Bipolar(only current outputs)
Controller 2 • Unipolar+
• Unipolar-

Mathematical functions All the mathematical functions can also be used as a data source and the
calculated value can be used as the measured value.

You can monitor the manipulated variable by assigning the controller manipulated variable
to a limit switch (e.g. configure a dosing time alarm).

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Path: Menu/Setup/Additional functions/Limit switches/Limit switches 1 to 8

Function Options Info

Cleaning program Options Use this function to choose the cleaning instance which
• None should be started when the limit switch is active.
• Cleaning 1
• Cleaning 2
• Cleaning 3
• Cleaning 4
Factory setting
None

Function Options Activating/deactivating the limit switch

• On
• Off
Factory setting
Off

Operating mode Options Type of limit value monitoring:

• Above limit check • Limit value overshoot or undershoot→ å 86
• Below limit check • Measured value within or outside a range → å 87
• In range check • aChange rate→ å 89
• Out of range check
• Change rate
Factory setting
Above limit check

Limit value Settings Operating mode="Above limit check" or "Below limit

Depends on the measured check"
value

a0018080
Fig. 86: Exceeding (A) and undershooting (B) a limit value (without hysteresis and switch-on delay)
1 Limit value
2 Alarm range
t1,t3,t5 No action
t2,t4 An event is generated

• If the measured values (MV) are increasing, the relay contact is closed when the on-value is exceeded ("Limit value" +
"Hysteresis") and the start delay has elapsed ("Start delay").
• If the measured values are decreasing, the relay contact is reset when the off-value is undershot ("Limit value" -
"Hysteresis") and following the release delay ("Switch off delay").

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Path: Menu/Setup/Additional functions/Limit switches/Limit switches 1 to 8

Function Options Info

Range lower value Settings Operating mode="In range check" or "Out of range check"
Depends on the measured
Range upper value value

a0018081
Fig. 87: Monitoring outside (A) and within (B) a range (without hysteresis and switch-on delay)
1 End of range
2 Start of range
3 Alarm range
t1, 2, 3, 4 An event is generated

• If the measured values (MV) are increasing, the relay contact is closed when the on-value is exceeded ("Range lower
value" + "Hysteresis") and the start delay has elapsed ("Start delay").
• If the measured values are decreasing, the relay contact is reset when the off-value is undershot ("Range upper value"
- "Hysteresis") and following the release delay ("Switch off delay").

Hysteresis Settings Operating mode="In range check", "Out of range

Depends on the measured check","Above limit check" or "Below limit check"
value

The hysteresis is needed to ensure a stable switching

behavior.
The device software adds or subtracts the value set here
to/from the limit value (Limit value, Range lower value
or Range upper value). This results in the double
"Hysteresis" value for the hysteresis range around the
limit value.
An event is then only generated if the measured value
(MV) completely passes through the hysteresis range.
→ å 88

a0018140
Fig. 88: Hysteresis taking the example of limit value overshoot
1 Limit value
2 Alarm range
3 Hysteresis range
t1, t2 An event is generated

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Path: Menu/Setup/Additional functions/Limit switches/Limit switches 1 to 8

Function Options Info

Start delay 0 to 9999 s Operating mode="In range check", "Out of range

check","Above limit check" or "Below limit check"
Switch off delay Factory setting
0s Synonyms: pick-up and drop-out delay

Delta value Settings Operating mode="Change rate"

Depends on the measured
value The slope of the measured value (MV) is monitored in
this mode.
Delta time 00:01 to 23:59 An event is generated if, in the given timeframe (Delta
time), the measured value increases or decreases by
Factory setting more than the specified value (Delta value). No further
01:00 event is generated if the value continues to experience
such a steep increase or decrease.
Auto Confirm 00:01 to 23:59 If the slope is back below the limit value, the alarm
Factory setting status is reset after a preset time (Auto Confirm).
00:01
Events are triggered by the following conditions in the
example given:

t2 - t1 < "Delta time" and ΔMV1 > "Delta value"

t4 - t3 > "Auto Confirm" and ΔMV2 < "Delta value"
t6 - t5 < "Delta time" and ΔMV3 > ΔMV

a0018100
Fig. 89: aChange rate

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10.6.2 Controller

Controller structure in Laplace representation

a0015007
Fig. 90: Block diagram of the controller structure

A Neutral zone I Integral value

B Output limiting D Derivative value
Kp Gain (P-value) αTv Damping time constant with α= 0 to 1
Tn Integral action time (I-value) e Control deviation
Tv Derivative action time (D-value) w Set point
Tw Time constant for set point damping x Controlled variable
Twu Time constant for anti-windup feedback y Manipulated variable
P Proportional value

The controller structure of the device comprises set point damping at the input to prevent erratic
changes in the manipulated variable if the set point changes. The difference between the set
point w and the controlled variable (measured value) X results in the control deviation which is
filtered by a neutral zone.
The neutral zone is used to suppress control deviations (e) that are too small. The control
deviation thus filtered is now fed to the actual PID controller which divides into three parts
based on the P (proportional), I (integral) and D (derivative) values (top-down). The integral
section (middle) also comprises an anti-windup mechanism for limiting the integrator. A
low-pass filter is added to the D-section to damp hard D-terms in the manipulated variable. The
sum of the 3 sections results in the internal controller manipulated variable which is limited
according to the settings (for PID-2s to -100% to +100%).
The graphic does not illustrate a downstream filter for limiting the rate of change of the
manipulated variable (can be configured in the menu in "Max Y change rate /s").
In the menu do not configure the gain Kp. Instead configure the reciprocal value, the
proportional band Xp (Kp=1/Xp).

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Configuration
Make the following decisions when configuring a controller:
1. What type of process can your process be assigned to?
-->Process type
2. Should it be possible to influence the measured variable (controlled variable) in one
direction or in both directions?
One-sided or two-sided controller, -->Controller type
3. What should be the controlled variable (sensor, measured value)? -->Controlled variable
4. Do you have a disturbance variable that should be active at the controller output?
-->Disturbance variable
5. Define the parameters for the controller:
– Setpoint, -->Setpoint
– Neutral zone, -->Xn
– Proportional band, -->Xp
– Integral action time (I-value), -->Tn
– Derivative action time (D-value), -->Tv
6. What should the controller do in the event of a hold (measured error, sensor replacement,
cleaning etc.)?
– Pause or continue with dosing?
– At the end of a hold, continue or restart the control loop (affects I-value)?
7. How should the actuator be triggered?
– Assign "Unipolar+" to the output for an actuator which can increase the measured value.
– Assign "Unipolar-" to the output for an actuator which can decrease the measured value.
– Select "Bipolar" if you want to output the manipulated variable via one current output
only (split range).
8. Configure the outputs and switch on the controller.

Path: Menu/Setup/Additional functions/Controller 1 or Controller 2

Function Options Info

Control Options First configure the controller and leave the switch at "Off"
• Off during this time.
• Automatic Once you have made all the settings, you can assign the
• Manual mode controller to an output and switch it on.
Factory setting
Off

Manual mode

Y -100 to 100 % Specify the manipulated variable that should be output

in manual mode.
Factory setting
0%

Y Actual output Read only Manipulated variable actually output.

Name Free text Give the controller a name so you can identify it later on.

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Path: Menu/Setup/Additional functions/Controller 1 or Controller 2

Function Options Info

Controller Enable Options In connection with the DIO module, you can select a
• None binary input signal, e.g. from an inductive proximity
• Binary inputs switch, as a source for enabling the controller.
• Limit switch
• Fieldbus variables
Factory setting
None

Setup Level Options The Setup Level changes the number of parameters that
• Standard can be configured.
• Advanced If you choose "Standard" the other controller parameters
are active nevertheless. The system uses the factory
Factory setting
settings which usually suffice in most cases.
Standard

Process type Options Decide what type of process best describes your
• Inline particular process (see the explanation below).
• Batch
Factory setting
Inline

Batch process
The medium is in a closed system.
The task of the control system is to dose in such a way that the measured value (controlled variable) changes from its
start value to its target value. No more dosing is needed once the setpoint has been reached and the system is stable. If
the target value is overshot, a two-sided control system can compensate for this.
In the case of 2-sided batch control systems, a neutral zone is used/configured to suppress oscillations around the
setpoint.

In-line process
In an in-line process, the control system works with the medium flowing by in the process. Here, the controller has the
task of using the manipulated variable to set a mixture ratio between the medium and dosing agent such that the
resulting measured variable corresponds to the setpoint. The properties and volume of the medium flow can change at
any time and the controller has to react to these changes on a continuous basis. If the flow rate and medium remain
constant, the manipulated variable can also assume a fixed value once the process has settled. Since the control process
is never "finished" here, this type of control is also referred to as continuous control.

A mixture of both process types can often be found in practice: the semi-batch process. Depending on the ratio
between the flow and the container volume, this arrangement behaves either like a batch process or an in-line
process.

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Path: Menu/Setup/Additional functions/Controller 1 or Controller 2

Function Options Info

Controller type Options Depending on the actuator connected, you influence the
• PID 1-sided process in just one direction (e.g. heating) or in both
• PID 2-sided directions (e.g. heating and cooling).
Factory setting
PID 2-sided

A 2-sided controller can output a manipulated variable in the range from -100% to +100%, i.e. the manipulated variable
is bipolar. The manipulated variable is positive if the controller should increase the process value. In the case of a pure
P-controller, this means that the value of the controlled variable x is smaller than the setpoint w. On the other hand, the
manipulated variable is negative if the process value should be decreased. The value for x is greater than the setpoint w.
The following graphic illustrates the relationship y = (w-x)/Xp:

Effective direction Options In what direction should the controller influence the
• Direct measured value?
Controller type="PID 1-sided"
• Reverse • The measured value should increase as a result of
dosing (e.g. heating) --> "Reverse"
Factory setting
• The measured value should decrease as a result of
Reverse
dosing (e.g. cooling) --> "Direct"

A 1-sided controller has a unipolar manipulated variable, i.e. it can only influence the process in one direction. If the
controller should increase the process value, set "Reverse" as the effective direction. The controller then becomes active
when the process value is too small (range A).
With the "Direct" effective direction, the controller acts as a "downwards controller". It becomes active when the process
value (e.g. the temperature) is too high (range B).

The red curve shows overlap between the curves of the two 1-sided controllers.

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Path: Menu/Setup/Additional functions/Controller 1 or Controller 2

Function Options Info

Controlled variable

Source of data Options Specify the input or output which should be the source of
• Sensors data for the controlled variable.
• Current inputs
• Fieldbus signals
• Binary inputs
• Mathematical functions
Factory setting
None

Measured value Options Specify the measured value that should be your
• None controlled variable.
• Depends on theSource of The measured value you can select depends on the
data option selected under "Source of data".
Factory setting
None

Setpoint Not available if a fieldbus has been selected as the

"Source of data"

Setpoint Range of adjustment and Specify the setpoint for the controlled variable.
factory setting
Depends on the "Source of
data"

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Path: Menu/Setup/Additional functions/Controller 1 or Controller 2

Function Options Info

Disturbance variable optional, activation code necessary

With "flowing medium" (inline) controls, it can happen that the flow rate is non-constant. In some circumstances, strong
fluctuations are possible. In the case of a settled control system in which the flow rate is suddenly halved, it is desirable
that the dosed quantity from the controller is also directly halved. In order to achieve this type of "flow-rate-proportional"
dosing, this task is not left to the I-component of the controller, but rather one enters the (to be measured) flow rate as
disturbance variable z multiplicative at the controller output.

Strictly speaking, feedforward control involves an open-loop control system, since its effect is not measured directly.
That means that the feed flow is directed exclusively forward. Hence the designation "feedforward control."
For the additive feedforward control that is alternatively available in the device, the (standardized) disturbance variable
is added to the controller actuating variable. This enables you to set up a type of variable base load dosing.
The standardization of the disturbance variable is required both for multiplicative and for additive feedforward control
and is done using parameters Z0 (zero point) and Zp (proportional band): zn = (z - z0)/zp

Example:
Flowmeter with measuring range 0 to 200 m3/ h
The controller would currently dose 100% without feedforward control.
The feedforward control should be configured such that at z = 200m3/h, the controller still doses at 100% (zn = 1). If the
flow rate drops, the dosing rate should be reduced, and at a flow rate of less than 4 m3/h, dosing should stop entirely (zn
= 0).
--> Select the zero point z0 = 4 m3/h and the proportional band Zp= 196 m3/h.

Function Options Selecting multiplicative or additive feedforward control

• Off
• Multiply
• Add
Factory setting
Off

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Path: Menu/Setup/Additional functions/Controller 1 or Controller 2

Function Options Info

Source of data Options Specify the input or output which should be the source of
• Sensors data for the disturbance variable.
• Current inputs
• Fieldbus signals
• Binary inputs
• Mathematical functions
Factory setting
None

Measured value Options Specify the measured value that should be your
• None disturbance variable.
• Depends on theSource of The measured value you can select depends on the
data option selected under "Source of data".
Factory setting
None

Zp Range of adjustment Proportional band -->

depending on the selection
Z0 of the measured value Zero point

Parameters

The Liquiline PID controller has been implemented in the serial structural form, i.e. it has the following parameters:
• Integral action time Tn
• Derivative action time Tv
• Proportional band Xp
You can also configure the following for Setup Level="Advanced":
• Time constant Twu
• Time constant Alpha
• Width of the neutral zone Xn
• Width of the hysteresis range of the neutral zone Xhyst
• Cycle time of the controller

Tn 0.0 to 9999.0 s The integral action time specifies the effect of the
I-value
Factory setting
If Tn > 0, then the following holds true:
0.0 s
Clock < Twu < 0.5(Tn + Tv)

The integral action time is the time needed in a step-function response to achieve a change in the manipulated variable
- as a result of the I effect - which has the same magnitude as the P-value.

e = control deviation, e=w-x (setpoint controlled variable)

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Path: Menu/Setup/Additional functions/Controller 1 or Controller 2

Function Options Info

Twu 0.1 to 999.9 s Time constant for anti-windup feedback

The lower the value the greater the integrator
Factory setting
inhibition. Exercise extreme caution when making
20.0 s
changes.
Clock < Twu < 0.5(Tn + Tv)

Tv 0.0 to 9999.0 s The derivative action time specifies the effect of the
D-value
Factory setting
0.0 s

The derivative action time is the time by which the ramp response of a PD controller reaches a specific value of the
manipulated variable at an earlier stage than it would solely as a result of its P-value.

alpha 0.0 to 1.0 Affects the additional damping filter of the D-controller.
The time constant is calculated from alpha * Tv.
Factory setting
0.3

Process balance Options Symmetric

• Symmetric There is only one control gain and this applies for both
Controller type="PID
• Asymmetric sides of the process.
2-sided"
Factory setting Asymmetric
Symmetric You can set the control gain individually for both sides of
the process.

Xp Range of adjustment and Proportional band, reciprocal value of the proportional

factory setting gain Kp
Process
Depends on the "Source of As soon as X deviates more than Xp from the set point, Y
balance="Symmetric"
data" reaches 100%.

Xp Low Range of adjustment and Process balance="Asymmetric"

factory setting
Xp High Depends on the "Source of
data"

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Path: Menu/Setup/Additional functions/Controller 1 or Controller 2

Function Options Info

Xn Range of adjustment and Tolerance range about the setpoint that prevents minor
factory setting oscillations about the setpoint if using two-sided control
Process
Depends on the "Source of loops.
balance="Symmetric"
data"

XN Low Range of adjustment and Process balance="Asymmetric"

factory setting
XN High Depends on the "Source of
data"

XHyst 0.0 to 99.9 % Width of the hysteresis range of the neutral zone,
relative component of Xn
Factory setting
0.0 %

The graphic illustrates the manipulated variable (with a pure P-controller ) over the control deviation e (set point minus
controlled variable). Very low control deviations are set to zero. Control deviations > Xn are processed "in the normal
way". Via Xhyst it is possible to configure a hysteresis to suppress oscillations at the edges.

Clock 0.333 to 100.000 s Expert setting!

Only change the cycle time of the controller if you know
Factory setting
exactly what you are doing!
1.000 s
Clock < Twu < 0.5(Tn + Tv)

Max Y change rate /s 0.00 to 1.00 Limits the change of the output variable
Factory setting
0.40

Hold behavior Hold=measured value is no longer reliable

Manipulated Variable Options How should the controller react to a measured value that
• Freeze is no longer reliable?
• Set to zero Freeze
The manipulated variable is frozen at the current value
Factory setting
Set to zero
Freeze
Manipulated variable is set to 0 (no dosing)

State Options Internal controller status

• Freeze Freeze
• Reset No change
Reset
Factory setting
After a hold, the control system starts from scratch, and
Freeze
settling time takes place again.

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Path: Menu/Setup/Additional functions/Controller 1 or Controller 2

Function Options Info

Manual mode

Y -100 to 100 % Editable manipulated variable, which is output in the

manual mode.
Factory setting
0%

Y Actual output Read only Manipulated variable actually output:

Input manually for "Control" = "Manual mode", calculated
by the controller for Control" = "Automatic"

Setpoint Read only Configured setpoint (damped)

If the controller is running and the set point is
reconfigured, here you can see how the (effective) set
point gradually moves towards the new value.

X Current measured value

Output selection Goes to the "Outputs" menu

--> "Outputs" section

10.6.3 Cleaning programs

! CAUTION
The cleaning system is not switched off during calibration or maintenance activities
Risk of injury due to medium or cleaning agent
‣ If a cleaning system is connected, switch it off before removing a sensor from the medium.
‣ If you are not switching off the cleaning system because you wish to test the cleaning
function, wear protective clothing, goggles and gloves or take other appropriate measures.
Selecting the cleaning type
1. Select a cleaning program in the menu Setup/Additional functions/Cleaning.
 You can configure 4 different types of cleaning which you can assign individually to the
inputs.
2. For each cleaning program use the "Cleaning type" to decide which type of cleaning should
be performed.
The user can choose from the following cleaning types:
• Standard clean
• Chemoclean
• Chemoclean Plus
Under "State of cleaning" you can see whether the cleaning program is active or not. This is
for information purposes only.

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Standard cleaning
Standard cleaning involves cleaning a sensor with compressed air, for instance, as performed
with the ion-selective sensor CAS40D (connection of the cleaning unit for CAS40D→ ä 35 ).

Path: Menu/Setup/Additional functions/Cleaning/Cleaning 1 ... 4/Standard clean

Function Options Info

Cleaning time 5 to 600 s Cleaning time... Cleaning duration

Factory setting The cleaning duration and interval depend on the
10 s process and sensor. Determine the variables empirically
or based on experience.

Defining the cleaning cycle → ä 108

Chemoclean
An example of the use of the "Chemoclean" function is the use of the CYR10 injector unit to clean
pH glass sensors. (CYR10 connection → ä 35)

Path: Menu/Setup/Additional functions/Cleaning/Cleaning 1 ... 4/Chemoclean

Function Options Info

Cleaning time 0 to 900 s Cleaning duration

Factory setting The cleaning duration, pre-rinse and post-rinse times
5s and the interval depend on the process and sensor.
Determine the variables empirically or based on
Prerinse time 0 to 900 s experience.
Factory setting
0s

Postrinse time 0 to 900 s

Factory setting
0s

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Chemoclean Plus
Use the "Chemoclean Plus" function for measuring cycles in aggressive media or for regular
cleaning operations with acids, bases or special cleaners.

CM44x / CM44xR / CSFxx

4R DIO
R1 R2 R3 R4 DI1 DI2

Air
1
0
H2O

B
D
a0022102
Fig. 91: Layout of a measuring point with regular cleaning with acid and base
0 Compressed air connection for "Measure" assembly B Base pump
1 position C Rinse chamber of assembly ("Service" position)
A Compressed air connection for "Service" assembly D Medium ("Measure" position)
position
Acid pump

Path: Menu/Setup/Additional functions/Cleaning/Cleaning 1 ... 4/Chemoclean Plus/ChemoCleanPlus setup

Function Options Info

Cleaning steps setup Table to create a time You define a maximum of 30 program steps which
program should be performed one after the other. For each step
enter the duration [s] and the state (0="off", 1="on") of
each relay or output. You can specify the number and
name of the outputs further down in the menu.
See below for program examples.

Failsafe step setup Table view In the table specify the states that the relays or outputs
should assume in the event of an error.

Limit contacts 0 to 2 Select the number of digital input signals (e.g. from limit
position switches of the retractable assembly).

Limit contact 1 ... 2 Options Define the signal source for each limit position switch.
• Binary inputs
• Fieldbus signals

Outputs 0 to 4 Select the number of outputs that actuators, such as

valves or pumps, should activate.

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Path: Menu/Setup/Additional functions/Cleaning/Cleaning 1 ... 4/Chemoclean Plus/ChemoCleanPlus setup

Function Options Info

Output label 1 ... 4 Text You can assign a meaningful name to each output, e.g.
"assembly", "acid", "base" etc.

Sample program: regular cleaning with acid and base

Limit switch Duration Assembly Water Acid Base

[s]

ES1 0 (Assembly in "Measure" position) 1 0 0 0 0

ES1 1 (Assembly in "Service" position) 5 1 0 0 0

ES1 1 10 1 1 0 0

ES1 1 2 1 1 1 0

ES1 1 10 1 1 0 0

ES1 1 2 1 1 0 1

ES1 1 10 1 1 0 0

ES1 1 2 1 0 0 0

ES1 0 5 0 0 0 0

The pneumatic retractable assembly, e.g. CPA875, is activated by compressed air via a two-way
valve. As a result, the assembly assumes either the position 0 ("Measure" - sensor in medium) or
position 1 ("Service" - sensor in rinse chamber). Media such as water, acids or bases are supplied
via valves or pumps. Here there are two states: 0 (= "off" or "closed") and 1 (= "on" or "open").
The hardware required for "Chemoclean Plus", such as control valves, pumps, compressed
air supply, media etc., must be provided by the customer.

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Defining the cleaning cycle

Path: Menu/Setup/Additional functions/Cleaning/Cleaning 1 ... 4

Function Options Info

Cleaning cycle Options Choose from a cleaning routine that is restarted at set
• Off intervals and a user-definable weekly program.
• Interval
• Weekly program
Factory setting
Off

Cleaning cycle= "Interval"

Cleaning interval 00-00:01 to 07-00:00 The interval value can be between 1 minute and 7 days.
(DD-hh:mm) Example: You have set the value "01-00:00". Each day,
the cleaning cycle starts at the same time you started the
Factory setting
first cleaning cycle.
01-00:00

Cleaning cycle= "Weekly program"

Daily event times 00:00 to 23:59 1. "Event time 1 to 6": Define up to 6 times.
(HH:MM)
 You can then choose from these for each
Weekdays Monday ... Sunday weekday afterwards.
2. For each day of the week, individually choose which
of the 6 times is to be used for a cleaning routine on
this particular day.
In this way you create weekly programs that are
perfectly adapted to suit your process.

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Other settings and manual cleaning

Path: Menu/Setup/Additional functions/Cleaning/Cleaning 1 ... 4

Function Options Info

Start signal Options In addition to cyclic cleaning, you can also use an input
• Bus signals signal to start event-controlled cleaning.
• Signals of digital or Choose the trigger for such a cleaning process here.
analog inputs Interval programs and weekly programs are executed as
normal, i.e. conflicts can occur. Priority is given to the
Factory setting
cleaning program that was the first to be started.
None

Hold Options Decide whether there should be a hold during the

• On cleaning process. This hold affects the inputs to which
• Off this cleaning process is assigned.
Factory setting
On

Start single Action Start an individual cleaning process with the selected
parameters.
If cyclical cleaning is enabled, there are times in which it
is not possible to manually start the process.

Manual mode Action You start the manual mode by acknowledging the
warning. You can now start each possible cleaning step
manually. If you want to return to cyclic cleaning, you
must set "Manual mode" to "Off".

StoporStop Failsafe Action End the cleaning process (cyclically or manually)

Output selection Goes to the "Outputs" menu

You can assign the cleaning program directly to one or
more outputs.
--> "Outputs" section

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10.6.4 Mathematical functions

In addition to "real" process values which are delivered by analog inputs or physical sensors
connected to the device, you can also calculate a maximum of 6 "virtual" process values using
mathematical functions.
The "virtual" process values can be:
• Output via a current output or a fieldbus
• Used as a controlled variable
• Assigned as a measured variable to a limit contactor
• Used as a measured variable to trigger cleaning
• Displayed in user-defined measuring menus.

Difference
You can subtract the measured values of two sensors and use the result to detect incorrect
measurements, for example.
To calculate a difference, you must use two measured values with the same engineering unit.

Path: Menu/Setup/Additional functions/Mathematical functions/MF 1 to 6/Mode/Difference

Function Options Info

Calculation Options On/off switch for the function

• Off
• On
Factory setting
Off

Y1 The options depend on the Select the sensors and the measured variables that
sensors connected should be used as the minuend (Y1) or subtrahend (Y2).
Measured value

Y2

Measured value

Difference value Read only View this value in a user-defined measuring screen or
output the value via the current output.

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Redundancy
Use this function to monitor two or three sensors with redundant measurements. The
arithmetic average of the two closest measured values is calculated and output as the
redundancy value.

Path: Menu/Setup/Additional functions/Mathematical functions/MF 1 to 6/Mode/Redundancy

Function Options Info

Calculation Options On/off switch for the function

• Off
• On
Factory setting
Off

Y1 The options depend on the You can select different types of sensor that output the
sensors connected same measured value.
Measured value
Example for temperature redundancy:
Y2 You have a pH sensor and an oxygen sensor at inputs 1
and 2. Select both as "Y1" and "Y2". For "Measured value"
Measured value select the temperature.

Y3 (optional)

Measured value

Deviation control Options You can monitor the redundancy. Specify an absolute
• Off limit value that may not be exceeded.
• On
Factory setting
Off

Deviation limit Depends on the selected

measured value

Redundancy Read only View this value in a user-defined measuring screen or

output the value via the current output.

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rH value
To calculate the rH value, a pH sensor and an ORP sensor must be connected. It is irrelevant
whether you are using a pH glass sensor, an ISFET sensor or the pH electrode of an ISE sensor.

Path: Menu/Setup/Additional functions/Mathematical functions/MF 1 to 6/Mode/rH calculation

Function Options Info

Calculation Options On/off switch for the function

• Off
• On
Factory setting
Off

pH source Connected pH sensor Set the input for the pH sensor and the input for the ORP
sensor. Measured value interrogation is obsolete as you
ORP source Connected ORP sensor must select pH or ORP mV.

Calculated rH Read only View this value in a user-defined measuring screen or

output the value via the current output.

Degassed conductivity
Carbon dioxide from the air can be a contributing factor to the conductivity of a medium. The
degassed conductivity is the conductivity of the medium excluding the conductivity caused by
carbon dioxide.
In the power station industry, for example, it is advantageous to use the degassed conductivity:
• The percentage of conductivity caused by corrosion products or fouling in the feed water can
be determined as early as when the turbines are started. The system excludes the initially high
conductivity values resulting from the ingress of air.
• If carbon dioxide is regarded as non-corrosive, the live steam can be directed to the turbine far
earlier during startup.
• If the conductivity value increases during normal operation, it is possible to immediately
determine an ingress of coolant or air by calculating the degassed conductivity.

Path: Menu/Setup/Additional functions/Mathematical functions/MF 1 to 6/Mode/Degassed conductivity

Function Options Info

Calculation Options On/off switch for the function

• Off
• On
Factory setting
Off

Cation conductivity Connected conductivity "Cation conductivity" is the sensor downstream from the
sensor cation exchanger and upstream from the "degassing
module", "Degassed conductivity" is the sensor at the
Degassed conductivity Connected conductivity outlet of the degassing module.
sensor Measured value interrogation is obsolete as you can only
choose conductivity.

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Path: Menu/Setup/Additional functions/Mathematical functions/MF 1 to 6/Mode/Degassed conductivity

Function Options Info

CO2 concentration Read only View this value in a user-defined measuring screen or
output the value via the current output.

Dual conductivity
You can subtract two conductivity values and use the result, for example, to monitor the
efficiency of an ion exchanger.

Path: Menu/Setup/Additional functions/Mathematical functions/MF 1 to 6/Mode/Dual conductivity

Function Options Info

Calculation Options On/off switch for the function

• Off
• On
Factory setting
Off

Inlet The options depend on the Select the sensors that should be used as the minuend
sensors connected (Inlet, e.g. sensor upstream from the ion exchanger) and
Measured value subtrahend (Outlet, e.g. sensor downstream from the
ion exchanger).
Outlet

Measured value

Main value format Options

• Auto
• #
• #.#
• #.##
• #.###
Factory setting
Auto

Cond. unit Options

• Auto
• μS/cm
• mS/cm
• S/cm
• μS/m
• mS/m
• S/m
Factory setting
Auto

Dual conductivity Read only View this value in a user-defined measuring screen or
output the value via the current output.

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Calculated pH value
The pH value can be calculated from the measured values of two conductivity sensors under
certain conditions. Areas of application include power stations, steam generators and boiler
feedwater.

Path: Menu/Setup/Additional functions/Mathematical functions/MF 1 to 6/Mode/pH calculation from

conductivity

Function Options Info

Calculation Options On/off switch for the function

• Off
• On
Factory setting
Off

Method Options The calculation is performed on the basis of Guideline

• NaOH VGB-R-450L of the Technical Association of Large
• NH3 Power Plant Operators (Verband der
• LiOH Großkesselbetreiber, (VGB)).
Factory setting NaOH
NaOH pH = 11 + log {(κv - 1/3 κh)/273}
NH3
pH = 11 + log {(κv - 1/3 κh)/243}
LiOH
pH = 11 + log {(κv - 1/3 κh)/228}
κv ... "Inlet" ... direct conductivity
κh ... "Outlet" ... acid conductivity

Inlet Choice of conductivity Inlet

sensor Sensor upstream from the cation exchanger, "direct
Outlet conductivity"
Outlet
Sensor downstream from the cation exchanger, "acid
conductivity"
The choice of measured value is obsolete since it must
always be "Conductivity".

Calculated pH Read only View this value in a user-defined measuring screen or

output the value via the current output.

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10.6.5 Measuring range switch

A measuring range switching (MRS) configuration includes the following options for each of the
four binary input states:
• Mode of operation (conductivity or concentration)
• Concentration table
• Temperature compensation
• Current output turndown
• Limit contactor range
If an MRS set is assigned to a channel and MRS is enabled for this set, the measuring range
configuration selected via the binary inputs is used instead of the normal configuration of the
linked sensor channel. So that the current outputs and limit contactors are controlled by the
MRS, these must be linked with the MRS set, not with the measuring channel.
Current outputs and limit contactors that are connected to an MRS set receive the measured
value corresponding to the mode of operation as well as the corresponding turndown or range
for limit value monitoring. A limit contactor connected to an MRS set always uses the "Out of
range check" mode, i.e. it switches if the value is outside the configured range. If a current output
or limit contactor is connected to an MRS set, the turndown, monitoring range and limit
contactor mode can no longer be configured manually. Therefore, these options are hidden in
the current output menu and limit contactor menu.
Example: CIP cleaning in a brewery
Beer Water Base Acid

Binary input 1 0 0 1 1

Binary input 1 0 1 0 1

Measuring range Measuring range Measuring range Measuring range

00 01 10 11

Operating mode Conductivity Conductivity Concentration Concentration

Conc. Table - - NaOH 0..15% User table 1

Compensation User table 1 Linear - -

Current output

Range lower value 1.00 mS/cm 0.1 mS/cm 0.50 % 0.50 %

Range upper value 3.00 mS/cm 0.8 mS/cm 5.00 % 1.50 %

Limit switches

Range lower value 2.3 mS/cm 0.5 mS/cm 2.00 % 1.30 %

Range upper value 2.5 mS/cm 0.7 mS/cm 2.10 % 1.40 %

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Path: Menu/Setup/Additional functions/Measuring range switch

Function Options Info

MRS set 1 If you enter both activation codes, you have two
MRS set 2 independent parameter sets available for measuring
range switching. The submenus are the same for both
sets.

MRS Options Switches the function on or off

• On
• Off
Factory setting
Off

Sensor Options This function can be used on conductivity sensors only.

• None
• Connected, inductive
conductivity sensors
Factory setting
None

Binary input 1 Options Source of the switching signal, can be selected for input
• None 1 and 2 in each case
Binary input 2 • Binary inputs
• Fieldbus signals
• Limit switch
Factory setting
None

Sensor = conductivity sensor

Measuring range 00 Select the MRSs; a maximum of 4 are possible.

Measuring range 01 The submenus are identical for each and thus are
Measuring range 10 displayed only once.
Measuring range 11

Operating mode Options

• Conductivity
• Concentration
Factory setting
Conductivity

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Path: Menu/Setup/Additional functions/Measuring range switch

Function Options Info

Conc. Table Options Concentration tables saved at the factory:

• NaOH 0..15% NaOH: 0 to 15%, 0 to 100 ˚C (32 to 212 ˚F)
• HCl 0..20% HCl: 0 to 20%, 0 to 65 ˚C (32 to 149 ˚F)
• HNO3 0..25% HNO3: 0 to 25%, 2 to 80 ˚C (36 to 176 ˚F)
• HNO3 24..30% H2SO4: 0 to 28%, 0 to 100 ˚C (32 to 212 ˚F)
• H2SO4 0..28% H2SO4: 40 to 80%, 0 to 100 ˚C (32 to 212 ˚F)
• H2SO4 40..80% H2SO4: 93 to 100%, 0 to 100 ˚C (32 to 212 ˚F)
• H2SO4 93..100% H3PO4: 0 to 40%, 2 to 80 ˚C (36 to 176 ˚F)
• H3PO4 0..40% NaCl: 0 to 26%, 2 to 80 ˚C (36 to 176 ˚F)
• NaCl 0..26%
• User table 1
• User table 2
• User table 3
• User table 4
Factory setting
NaOH 0..15%

Compensation Options Various methods are available to compensate for the

• None temperature dependency.
• Linear Depending on your process, decide which type of
• NaCl (IEC 746-3) compensation you want to use.
• Water ISO7888 (20°C) Alternatively, you can also select "None" and thus
• Water ISO7888 (25°C) measure uncompensated conductivity.
• UPW NaCl
• UPW HCl
• User table 1
• User table 2
• User table 3
• User table 4
Factory setting
Linear

Current output

Range lower value 0 to 100 % Operating mode= "Concentration"

Range upper value

Range lower unit Options Operating mode= "Conductivity"

• S/m
Define the units and range limits for the output values.
• μS/cm
• mS/cm
• S/cm
• μS/m
• mS/m
Factory setting
mS/cm

Range lower value Enter value

Range upper unit Enter value

Range upper value Enter value

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Path: Menu/Setup/Additional functions/Measuring range switch

Function Options Info

Limit switches

Range lower value 0 to 100 % Operating mode= "Concentration"

Range upper value

Range lower unit Options Operating mode= "Conductivity"

• S/m
Define the units and range limits for the output values.
• μS/cm
• mS/cm
• S/cm
• μS/m
• mS/m
Factory setting
mS/cm

Range lower value Enter value

Range upper unit Selection and factory setting

as for "Range lower unit"

Range upper value Enter value

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11 Diagnostics and troubleshooting

The transmitter continuously monitors its own functions.
If a diagnostics message occurs, the display alternates between the diagnostics message and the
measured value in the measuring mode.
The color of the display background changes to red if a diagnostics message for error category
"F" occurs.

11.1 General troubleshooting

11.1.1 Troubleshooting
A diagnostic message appears on the display or via the fieldbus, measured values are not
plausible, or you identify a fault.
1. See the Diagnostics menu for the details on the diagnostic message.
 Follow the instructions to rectify the problem.
2. If this does not help: Search for the diagnostic message under "Overview of diagnostic
information" (→ ä 124) in this manual. Use the message number as a search criterion.
Ignore the letters indicating the Namur error category.
 Follow the troubleshooting instructions provided in the last column of the error tables.
3. If the measured values are implausible, the onsite display is faulty or you encounter other
problems, search for the faults under "Process errors without messages" or "Device-specific
errors".
 Follow the recommended measures.
4. Contact the Service Department if you cannot rectify the error yourself. Only cite the error
number.

11.1.2 Process errors without messages

See Operating Instructions for "Memosens", BA01245C

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11.1.3 Device-specific errors

Problem Possible cause Tests and/or remedial measures

Dark display No supply voltage Check if supply voltage applied.

Base module defective Replace base module

Values appear on display Module not wired correctly Check modules and wiring.
but:
– Display does not Impermissible operating system Switch off device and switch it on again.
change and / or condition
– Device cannot be
operated

Implausible measured Inputs defective First perform tests and take measures as outlined in
values "Process-specific errors" section
Measuring input test:
– Connect the Memocheck Sim CYP03D to the
input and use this to test its function.

Current output, incorrect Incorrect adjustment Check with integrated current simulation, connect
current value mA meter directly to current output.
Load too large

Shunt / short to ground in current

loop

No current output signal Base module defective Check with integrated current simulation, connect
mA meter directly to current output.

11.2 Diagnostic information on the local display

Up-to-date diagnostic events are displayed along with their status category, diagnostic code and
short text. Clicking on the Navigator lets you retrieve more information and tips on remedial
measures.

11.3 Diagnostic information via web browser

The same information as for the onsite display is available via the web server.

11.4 Diagnostic information via fieldbus

Diagnostic events, status signals and more information are transmitted according to the
definitions and technical capability of the respective fieldbus systems

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11.5 Adjusting diagnostic information

11.5.1 Classification of diagnostics messages
More detailed information on the current diagnostics messages displayed is provided in the
DIAG/Diagnostics list menu.
In accordance with Namur specification NE 107, the diagnostics messages are characterized by:
• Message number
• Error category (letter in front of the message number)
– F = (Failure) a malfunction has been detected
The measured value of the specific channel is no longer reliable. The cause of the
malfunction is to be found in the measuring point. Any controller connected should be set
to manual mode.
– M = (Maintenance required) Action should be taken as soon as possible
The device stills measures correctly. Immediate measures must not be taken. However,
proper maintenance efforts would prevent a possible malfunction in the future.
– C = (Function check) (No error)
Maintenance work is being performed on the device. Wait until the work has been
completed.
– S = (Out of specification) The measuring point is being operated outside its specification
Operation is still possible. However, you run the risk of increased wear, shorter operating
life or lower accuracy levels. The cause of the problem is to be found outside the measuring
point.
• Message text
If you contact the Service Department, please cite the message number only. Since you can
individually change the assignment of an error to an error category, the Service Department
cannot use this information.

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11.5.2 Adjusting diagnostic behavior

All the diagnostics messages are assigned to specific error categories at the factory. Since other
settings might be preferred depending on the application, error categories and the effect errors
have on the measuring point can be configured individually. Furthermore, every diagnostics
message can be disabled.
Example
The controller returns diagnostics message 531 "Logbook full". You want to change this message
so that an error is not indicated on the display for example.
1. Go to:
– Menu/Setup/General settings/Extended setup/Diagnostics/Device behavior
for device-specific diagnostics messages (as in this example)
– Menu/Setup/Inputs/<sensor type>/Extended setup/Diagnostics settings/Diag.
behavior
for sensor-specific diagnostics messages.
2. Select the diagnostics message and press the navigator button.
3. Decide:
a. Should the message be deactivated?
b. Do you want to change the error category?
c. Should an error current be output?
d. Do you want to trigger a cleaning program?
4. Deactivate the message, for example (Diagnostics message to "Off").

Configuration options
The list of diagnostic messages displayed depends on the path selected. There are
device-specific messages, and messages that depend on what sensor is connected.

Path: ... /Extended setup/Diagnostics settings/Diag. behavior

Function Options Info

List of diagnostic messages Select the message to be changed. Only then can you
make the settings for this message.

Diag. code Read only

Diagnostic message Options You can deactivate or reactivate a diagnostics message

• On here.
• Off
Deactivating means:
Factory setting • No error message in the measuring mode
Depends on the message • No error current at the current output

Error current Options Decide whether an error current should be output at the
• On current output if the diagnostic message display is
• Off activated.
Factory setting
Depends on the message

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Path: ... /Extended setup/Diagnostics settings/Diag. behavior

Function Options Info

Status signal Options The messages are divided into different error categories
• Maintenance (M) in accordance with NAMUR NE 107.
• Out of specification (S)
Decide whether you want to change a status signal
• Function check (C)
assignment for your application.
• Failure (F)
Factory setting
Depends on the message

Diag. output Options You can use this function to select an output to which
• None the diagnostic message should be assigned.
• Alarm relay
Before you can assign the message to an output, you
• Relay 1 to n (depends on
must first configure a relay output to "Diagnostics"
the device version)
(Menu/Setup/Outputs, assign the "Diagnostics" function
Factory setting and set the Operating mode to "as assigned").
None

An alarm relay is always available, regardless of the device version. Other relays are optional.

Cleaning program (for Options Decide whether the diagnostic message should trigger a
sensors) • None cleaning program.
• Cleaning 1 You can define the cleaning programs under:
• Cleaning 2 Menu/Setup/Additional functions/Cleaning.
• Cleaning 3
• Cleaning 4
Factory setting
None

Detail information Read only Here you can find more information on the diagnostic
message and instructions on how to resolve the
problem.

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11.6 Overview of diagnostic information

11.6.1 Device-specific, general diagnostics messages

No. Message Factory settings Tests or remedial measures

Cat. Diag. Error

on/off current

202 Selftest active F On Off Wait for self-test to be finished

216 Hold active C On Off Output values and status of the channel are on
hold

241 Device error F On On Internal device error

1. Update the software
242 Software incomp. F On On 2. Contact the Service Department
3. Replace the backplane (Service)
243 Device error F On On

261 Electr. module F On On Electronics module defective

1. Replace the module
2. Contact the Service Department

262 Module connect. F On On Electronics module not communicating

1. Check the module, replace it if necessary
2. Contact the Service Department

263 Electr. module F On On Wrong kind of electronics module

1. Replace the module
2. Contact the Service Department

284 Firmware update M On Off Update completed successfully

285 Update error F On On Firmware update failed

1. Repeat update
2. SD card error --> use another card
3. Incorrect firmware --> repeat with suitable
firmware
4. Contact the Service Department

302 Battery low M On Off Buffer battery of real time clock is low
The date and time are lost if the power is
interrupted.
--> Contact the Service Department (battery
replacement)

304 Module data F On On At least 1 module has incorrect configuration

data
1. Check the system information
2. Contact the Service Department

305 Power consum. F On On Total power consumption too high

1. Check installation
2. Remove sensors/modules

306 Software error F On On Internal firmware error

--> Contact the Service Department

370 Intern. Voltage F On On Internal voltage outside the valid range

--> Check supply voltage

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No. Message Factory settings Tests or remedial measures

Cat. Diag. Error

on/off current

373 Electr. temp. M On Off High electronics temperature

--> Check ambient temperature and energy
consumption

374 Sensor check F On Off No measurement signal from sensor

-> Check the sensor connection
-> Check sensor, replace if necessary

401 Reset to default F On On Factory reset is performed

406 Param. active C Off Off --> Wait for configuration to be finished

407 Diag. active C Off Off --> Wait for maintenance to be finished

412 Writing backup F On Off --> Wait for the write process to be finished

413 Reading backup F On Off --> Wait

460 Curr. under-run S On Off Reasons

• Sensor in air
461 Current exceeded S On Off • Air pockets in assembly
• Sensor fouled
• Incorrect flow to sensor
Measures
1. Check sensor installation
2. Clean the sensor
3. Adjust assignment of current outputs

462 Output Deviation S On Off When the current output is read back, the value
deviates from the target value displayed.
Possible reasons: Current load outside
specification, short-circuit or open current loop,
module defective
1. Check installation of current loop
2. Check module
3. Contact the Service Department

502 No text catalog F On On --> Contact the Service Department

503 Language change M On Off Language change failed

--> Contact the Service Department

530 Logbook at 80% M On Off 1. Save the logbook to the SD card and then
delete the logbook in the device
531 Logbook full M On Off 2. Set memory to ring memory
3. Deactivate logbook

532 License error M On Off --> Contact the Service Department

540 Parameter save M On Off Configuration saving has failed, --> repeat

541 Parameter load M On Off Configuration successfully loaded

542 Parameter load M On Off Configuration loading has failed, --> repeat

543 Parameter load M On Off Configuration loading aborted

544 Parameter reset M On Off Factory default successful

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No. Message Factory settings Tests or remedial measures

Cat. Diag. Error

on/off current

910 Limit switch S On Off Limit switch activated

951 Hold active CH1 ... 8 C On Off Output values and status of the channels are on
- hold. Wait until the hold is released again.
958

969 Modbus Watchdog S Off Off The device did not receive a Modbus telegram
from the master within the specified time. The
status of Modbus process values received is set to
invalid.

970 Input Overload S On On Current input overloaded

The current input is switched off from 23 mA due
to overload and reactivated automatically when a
normal load is present.

971 Input low S On On Current input too low

At 4 to 20 mA, the input current is less than the
lower error current
--> Check the input for short-circuits.

972 Input > 20 mA S On On Current output range exceeded

973 Input < 4 mA S On On Current output range undershot

974 Diag. confirmed C Off Off User has acknowledged the message displayed in
the measuring screen.

975 Device reset C Off Off Device reset

976 PFM value high S On Off Pulse frequency modulation: output signal
exceeded/undershot. Measured value outside the
977 PFM value low S On Off specified range.
Reasons: sensor in air, air pockets in assembly,
incorrect flow to sensor, sensor fouled.
1. Clean the sensor
2. Check plausibility
3. Adjust the PFM configuration.

978 ChemoCl.Failsafe S On On No feedback signal detected within the

configured period.
1. Check the application
2. Check the wiring
3. Extend the duration

990 Deviation limit F On On Redundancy: limit value of percentage deviation

exceeded

991 CO2 conc. range F On On CO2 concentration (degassed conductivity)

outside the measuring range

992 pH calc range F On On pH calculation outside the measuring range

993 rH calc range F On On rH calculation outside the measuring range

994 Dual cond range F On On Dual conductivity outside the measuring range

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11.6.2 Sensor-specific diagnostics messages

See Operating Instructions for "Memosens", BA01245C

11.7 Pending diagnostic messages

The Diagnostics menu contains all the information on the device status.
Furthermore, various service functions are available.
The following messages are directly displayed every time you enter the menu:
• "Most important message"
Diagnostics message recorded with the highest criticality level
• "Past message"
Diagnostic message whose cause is no longer present.
All the other functions in the Diagnostics menu are described in the following chapters.

11.8 Diagnostics list

All the current diagnostics messages are listed here.
A time stamp is available for each message. Furthermore, the system also displays the
configuration and description of the message as saved in "Menu/Setup/General
settings/Diagnostics/Device behavior".

11.9 Event logbook

11.9.1 Available logbooks
Types of logbooks
• Logbooks physically available (all apart from the overall logbook)
• Database view of all logbooks (=overall logbook)

Logbook Visible in Max. Can be Logbook Entries Can be

entries disabled can be can be exported
1)
deleted deleted

Overall logbook All events 1000 Yes No Yes No

Calibration logbook Calibration events 75 (Yes) No Yes Yes

Operation logbook Configuration events 250 (Yes) No Yes Yes

Diagnostics logbook Diagnostic events 250 (Yes) No Yes Yes

Version logbook All events 50 No No No Yes

Hardware version All events 125 No No No Yes

logbook

Data logbook for sensors Data logbooks 150,000 Yes Yes Yes Yes
(optional)

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Logbook Visible in Max. Can be Logbook Entries Can be

entries disabled can be can be exported
1)
deleted deleted

Debugging logbook Only accessible with the 1000 Yes No Yes Yes
special activation code
(Service)

1) Data in brackets means this depends on the overall logbook

11.9.2 Logbooks menu

Diagnostics/Logbooks

Function Options Info

All events Chronological list of all the logbook entries, with

information on the type of event.

Show Events are displayed Select a particular event to display more detailed
information.

Go to date User input Use this function to go directly to a specific time in the
• Go to date list. In this way, you avoid having to scroll through all
• Time the information. The complete list is always visible,
however.

Calibration events Chronological list of the calibration events.

Show Events are displayed Select a particular event to display more detailed
information.

Go to date User input Use this function to go directly to a specific time in the
• Go to date list. In this way, you avoid having to scroll through all
• Time the information. The complete list is always visible,
however.

Delete all entries Action You can delete all the calibration logbook entries here.

Configuration events Chronological list of the configuration events.

Show Events are displayed Select a particular event to display more detailed
information.

Go to date User input Use this function to go directly to a specific time in the
• Go to date list. In this way, you avoid having to scroll through all
• Time the information. The complete list is always visible,
however.

Delete all entries Action You can use this to delete all the operation logbook
entries.

Diagnostic events Chronological list of the diagnostics events.

Show Events are displayed Select a particular event to display more detailed
information.

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Diagnostics/Logbooks

Function Options Info

Go to date User input Use this function to go directly to a specific time in the
• Go to date list. In this way, you avoid having to scroll through all
• Time the information. The complete list is always visible,
however.

Delete all entries Action You can use this to delete all the diagnostics logbook
entries.

You can view your data logbook entries graphically on the display ("Show plot").
You can also adapt the display to suit your individual requirements:
• If you press the navigator button in the graphic display, you are given additional options such
as the zoom function and x/y movement of the graph.
• Furthermore, you can also define a cursor. If you select this option, you can move along the
graph with the navigator and view the logbook entry (data stamp/measured value) in text
form for every point in the graph.
• Simultaneous display of two logbooks ("Select 2nd plot" and "Show plot"), → å 92:
– A small cross marks the currently selected graph for which the zoom can be changed or a
cursor used, for example.
– In the context menu (press the navigator button), you can select the other graph. You can
then apply the zoom function, a movement or a cursor to this graph.
– Using the context menu, you can also select both graphs simultaneously. This enables you,
for example, to use the zoom function on both graphs simultaneously.

a0016688
Fig. 92: Simultaneous display of two graphs, the upper one is "selected"

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Diagnostics/Logbooks

Function Options Info

Data logbooks Chronological list of the data logbook entries for

sensors.

Data logbook 1 <Logbook This submenu is available for each data logbook that you
name> have set up and activated.

Source of data Read only Input or mathematical function is displayed

Measured value Read only Measured value being recorded is displayed

Log time left Read only Display of days, hours and minutes until logbook is full.
Please note the instructions regarding the selection of
the storage type in the General settings/Logbooks menu
(--> BA "Operation and settings").

Show Events are displayed Select a particular event to display more detailed
information.

Show plot Graphic display of the The entries are displayed according to your settings in
logbook entries the General settings/Logbooks menu.

Select 2nd plot Selecting another data You can view a second logbook at the same time as the
logbook current one.

Go to date User input Use this function to go directly to a specific time in the
• Go to date list. In this way, you avoid having to scroll through all
• Time the information. The complete list is always visible,
however.

Delete all entries Action You can use this to delete all data logbook entries.

Save logbooks

File format Options Save the logbook in the preferred file format.
• CSV You can then open the CSV file you saved on the PC in
• FDM MS Excel, for example, and process it further 1).
You can import the FDM files into Fieldcare and archive
them so they are tamper-proof.

All data logbooks The action commences as Use this function to save the logbook to an SD card.
Data logbook 1 to n
All event logbooks
soon as the option is
selected
‣ Insert the SD card into the device card reader and
select the logbook to be saved.
Calibration logbook
Diagnostic logbook
Configuration logbook
HW version logbook
Version logbook

The file name is made up of the "Logbook ident" (Menu/Setup/General settings/Logbooks), an abbreviation for
the particular logbook and a time stamp.

1) CSV files use international number formats and separators. Therefore they must be imported into MS Excel as
external data with the correct format settings. If you double-click the file to open it, the data are only displayed
correctly if MS Excel is installed with the US country setting.

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11.10 Simulation
You can simulate values at inputs and outputs for testing purposes:
• Current values at current outputs
• Measured values at inputs
• Relay contact opening or closing

Diagnostics/Simulation

Function Options Info

Current outputx:y Simulation of an output current

This menu appears once for each current output.

Simulation Options If you simulate the value at the current output, this is
• On indicated on the display by a simulation icon in front of
• Off the current value.
Factory setting
Off

Current 2.4 to 23.0 mA Set the desired simulation value.

Factory setting
4 mA

Alarm relay Simulation of a relay state

Relay x:y This menu appears once for each relay.

Simulation Options If you simulate the relay state, this is indicated on the
• On display by a simulation icon in front of the relay display.
• Off
Factory setting
Off

State Options Set the desired state.

• Low The relay switches in accordance with your setting when
• High you switch on the simulation. The display shows "On"
(="Low") or "Off" (="High") for the simulated relay state.
Factory setting
Low

Meas. inputs Simulation of a measured value

This menu appears once for each measuring input.
Channel : parameter

Sim. main value Options If you simulate the measured value, this is indicated on
• On the display by a simulation icon in front of the measured
• Off value.
Factory setting
Off

Main value Depends on the sensor Set the desired simulation value.
Factory setting
Depends on the sensor

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Diagnostics/Simulation

Function Options Info

Sim. temperature Options If you simulate the temperature measured value, this is
• On indicated on the display by a simulation icon in front of
• Off the temperature.
Factory setting
Off

Temperature -50.0 to +250.0 ˚C Set the desired simulation value.

(-58.0 to 482.0 ˚F)
Factory setting
20.0 ˚C (68.0 ˚F)

11.11 Reset measuring instrument

Diagnostics/Systemtest/Reset

Function Options Info

Device reset Options Restart and keep all the settings

• OK
• ESC

Factory default Options Restart with factory settings

• OK Settings that have not been saved are lost.
• ESC

Power supply Read only Detailed list of power supply to instrument.

• Digital Supply 1: 1.2V
The actual values can vary without a malfunction
• Digital Supply 2: 3.3V
being present.
• Analog Supply: 12.5V
• Sensor Supply: 24V
• Temperature

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11.12 Device information

11.12.1 System information

Diagnostics/System information

Function Options Info

Device tag Read only Individual device tag, --> "General settings"

Order code Read only You can order identical hardware with this code.
This code changes on account of changes to the
hardware and you can enter the new code you received
from the manufacturer here1).

To find out what device version you have, enterthe order code in the search screen at the following address:
www.products.endress.com/order-ident

Orig. order code ext. Read only Complete order code for the original device, resulting
from the product structure.

Current order code ext. Free text Current code, taking into account changes to the
hardware. You must enter this yourself.

Serial number Read only The serial number allows you to access device data and
documentation on the Internet:
www.products.endress.com/device-viewer

Software version Read only Current version

Bus address Read only

FXAB1 control module Read only

• Firmware version
• Hardware version

HART Read only HART-specific information

• Bus address The unique address is linked to the serial number and is
only with HART option
• Unique address used to reach devices in a multi-drop environment.
• Manufacturer ID Device and software version numbers are incremented
• Device type as soon as changes have been made.
• Device revision
• Software revision

Modbus Read only Modbus-specific information

• Enable
only with Modbus TCP or
• Bus address
Modbus RS485 option
• Termination
• Modbus TCP Port 502

PROFIBUS DP Read only Module status

• DPV0 state
only with PROFIBUS DP option

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Diagnostics/System information

Function Options Info

Ethernet Read only Ethernet-specific information

• Enable
only with Ethernet, Modbus
• Webserver
TCP, Modbus RS485 or
• IP-Address
PROFIBUS DP option
• Netmask
• Gateway
• MAC-Address
• Modbus TCP Port 502
• Webserver TCP Port 80

SD card Read only Total memory and space available

• Total
• Free memory

System modules

Depends on the electronics Read only This information is provided for every electronics
module available, e.g.: • Description module available. Specify the serial numbers and order
• Serial number codes when servicing, for example.
Base • Order code
• Hardware version
• Software version

Sensors

Depends on the sensors Read only This information is provided for every sensor available.
connected • Description Specify the serial numbers and order codes when
• Serial number servicing, for example.
• Order code
• Hardware version
• Software version

Save system information

Save to SD card File name assigned The information is saved on the SD card in a "sysinfo"
automatically (includes a subfolder. The csv file can be read and edited in MS
time stamp) Excel for example.

1) Provided you give the manufacturer all the information about changes to the hardware.

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11.12.2 Sensor information

Select the channel you want from the list of channels.
Information in the following categories is displayed:
• Extreme values
Extreme conditions to which the sensor was previously exposed, e.g. min./max.
temperatures2)
• Operating time
Operating time of the sensor under defined extreme conditions
• Calibration information
Calibration data of the last calibration
• Sensor specifications
Measuring range limits for main measured value and temperature
• General information
Sensor identification information
The specific data that are displayed depends on what sensor is connected.

2) Not available for all sensor types.

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11.13 Firmware history

Date Version Changes to software Documentation: edition

12/2013 01.05.00 Extension BA00444C/07/EN/17.13

• Chemoclean Plus BA00486C/07/EN/02.13
• Calendar function for cleaning BA01245C/07/EN/01.13
• Conductivity:
– Measuring range switching also for conductive conductivity
measurement
– External temperature signal via current input
• Oxygen:
– External pressure or temperature signals via current input
– Connected conductivity sensor can be used to calculate the
salinity.
• SAC, nitrate, turbidity:
– Calibration settings can be configured via fieldbus
• Channel-specific diagnostics codes for HOLD function.
Improvement
• Web server login for managing multiple users
• Set point and PID parameters for controllers can be configured
via fieldbus

04/2013 01.04.00 Extension BA00444C/07/EN/16.13

• Conductivity: BA00445C/07/EN/16.13
– Measuring range switch BA00450C/07/EN/16.13
– Temperature compensation ISO 7888 at 20 ˚C BA00451C/07/EN/15.13
• Support for DIO module BA00486C/07/EN/01.11
– Triggering of an external hold
– Triggering a cleaning
– PID regulator enable/disable
– PFM can be used as analog input
– Limit contactor signals via digital output
• Keylock with password protection
• PID regulator: disturbance variable feedforward is supported
• pH:
– Icon for manual and automatic temperature compensation
(ATC/MTC+MED)
– Monitoring for the upper and lower limits of the glass SCS
value can be switched on or off independently of each other
• ISE
– Simultaneous calibration of two parameters
– User-defined electrode type
– Raw measured value for current output selectable
– Timer for membrane replacement
• Logbooks remain intact after a firmware update
Improvement
• PROFIBUS address range for Siemens S7 moved to the lower
area.
• Offset icon still only present for pH or redox
• Turbidity: Autoranging can be switched off
• Export print (xml): device also provides a stylesheet.

06/2012 01.03.01 Improvement BA00444C/07/EN/15.12

• Hold via soft key BA00445C/07/EN/15.12
• Global or channel-specific hold stops automatic cleaning. BA00450C/07/EN/15.12
Manual cleaning can be started, however. BA00451C/07/EN/14.11
• Adapted factory settings BA00486C/07/EN/01.11

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Date Version Changes to software Documentation: edition

12/2011 01.03.00 Extension BA00444C/07/EN/14.11

• Max. 8 sensor channels supported BA00445C/07/EN/14.11
• Current inputs BA00450C/07/EN/14.11
• PROFIBUS DP incl. profile 3.02 supported BA00451C/07/EN/14.11
• Modbus RTU (RS485) supported BA00486C/07/EN/01.11
• Modbus TCP supported
• Integrated web server supported via TCPIP (RJ45)
• USP/EP (United States Pharmacopeia and European
Pharmacopeia) and TDS (Total Dissolved Solids) for
conductivity
• Icon for "controller active" in measuring screen
Improvement
• Controller hold via analog input
• Adapted factory settings
• SAC: Factory calibration in the field incl. filter operating time
reset and lamp change
• ISFET leakage visible in measuring screen
• Multiselect for limit switch and cleaning cycles

12/2010 01.02.00 Extension BA444C/07/EN/13.10

• Support for additional sensors: BA445C/07/EN/13.10
– Chlorine BA450C/07/EN/13.10
– ISE BA451C/07/EN/13.10
– SAC BA00486C/07/EN/01.11
– Interface
• HART communication
• Mathematics functions
Improvement
• Modified software structures
• Adapted factory settings
• User-defined measuring screens

03/2010 01.00.00 Original software BA444C/07/EN/03.10

BA445C/07/EN/03.10
BA450C/07/EN/03.10
BA451C/07/EN/03.10

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12 Maintenance
! WARNING
Process pressure and temperature, contamination, electrical voltage
Risk of serious or fatal injury
‣ If the sensor has to be removed during maintenance work, avoid hazards posed by pressure,
temperature and contamination.
‣ De-energize the device before opening it.
‣ Power can be supplied to switching contacts from separate circuits. De-energize these
circuits before working on the terminals.
Take all the necessary precautions in time to ensure the operational safety and reliability of the
entire measuring point.
Maintenance of the measuring point comprises:
• Calibration
• Cleaning the controller, assembly and sensor
• Checking cables and connections
When performing any work on the device, bear in mind any potential impact this may have on
the process control system or on the process itself.
NOTICE
Electrostatic discharge (ESD)
Risk of damage to electronic components
‣ Take personal protective measures to avoid ESD, such as discharging beforehand at PE or
permanent grounding with a wrist strap.
‣ For your own safety, use only genuine spare parts. With genuine parts, the function,
accuracy and reliability are also ensured after maintenance work.

12.1 Calibration
Sensors with Memosens protocol are calibrated at the factory.
Users must decide whether the process conditions present require calibration during initial
commissioning.
Additional calibration is not required in many standard applications.
Calibrate the sensors at sensible intervals depending on the process.
All information on calibration is provided in BA01245C "Memosens".

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12.2 Cleaning
12.2.1 Controller
Only clean the front of the housing with commercially available cleaning agents.
The front is resistant to the following as per DIN 42 115:
• Ethanol (short periods)
• Diluted acids (max. 2% HCl)
• Diluted bases (max. 3% NaOH)
• Soap-based household cleaners

NOTICE
Prohibited cleaning agents
Damage to the housing surface or housing seal
‣ For cleaning purposes, never use concentrated mineral acids or bases.
‣ Never use organic cleaners such as benzyl alcohol, methanol, methylene chloride, xylene or
concentrated glycerol cleaner.
‣ Never use high-pressure steam for cleaning purposes.
12.2.2 Digital sensors

! CAUTION
The cleaning system is not switched off during calibration or maintenance activities
Risk of injury due to medium or cleaning agent
‣ If a cleaning system is connected, switch it off before removing a sensor from the medium.
‣ If you are not switching off the cleaning system because you wish to test the cleaning
function, wear protective clothing, goggles and gloves or take other appropriate measures.
1. If an error occurs or the maintenance schedule stipulates that the sensor has to be
replaced, use a new sensor or a sensor that has been precalibrated in the laboratory.
A sensor is calibrated in the laboratory under optimum external conditions, thereby
ensuring better quality of measurement.
2. Remove the sensor to be serviced and install the new sensor.
3. You must perform calibration if you use a sensor that is not precalibrated.
4. The sensor data are automatically accepted by the transmitter. A release code is not
required.
5. Measurement is resumed.
6. Take the used sensor back to the laboratory. In the laboratory you can get the sensor ready
for reuse while ensuring the availability of the measuring point.
– Clean the sensor. For this purpose, use the cleaning agent specified in the sensor
manual.
– Inspect the sensor for cracks or other damage.
– If no damage is found, regenerate the sensor. Where necessary, store the sensor in a
regeneration solution (--> sensor manual).
– Recalibrate the sensor for reuse.

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12.2.3 Assemblies
Refer to the assembly operating manual for information on servicing and troubleshooting the
assembly. The assembly operating manual describes the procedure for mounting and
disassembling the assembly, replacing the sensors and seals, and contains information on the
material resistance properties, as well as spare parts and accessories.

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13 Repair
13.1 Spare parts

a0012840
Fig. 93: Spare parts: You can find the names of spare parts and their order numbers in the following table.

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Item Kit CM44x Order number

1 Kit CM44x: mounting plate 71101763

• Mounting plate
• Instructions for spare parts kit CM44x

2 Kit CM44x: housing base of field housing 71101734

• Housing base of field housing
• Cable mounting rail with double clamps and screws (item 12)
• Instructions for spare parts kit CM44x

3 Kit CM44x/CM44xR: electronics module backplane 71101457

• Backplane complete
• To be replaced only by Endress+Hauser Service

4 Kit CM44x/CM44xR: electronics module extension backplane 71141366

• Extension backplane complete
• To be replaced only by Endress+Hauser Service

5 Kit CM44x: power distribution terminals N+L 71101461

• Power distribution terminals
• Instructions for spare parts kit CM44x

6, 13 Kit CM44x: end covers and blanking covers 71107455

• 5 pcs. each

7 Kit CM442: base module BASE-L 24V AC/DC 71100607

• Base module 24V AC/DC complete
• End cover (item 8)
• Instructions for spare parts kit CM44x

Kit CM442: base module BASE-H 230V AC 71100611

• Base module 230V AC, complete
• End cover (item 8)
• Instructions for spare parts kit CM44x

Kit CM444/CM448: base module BASE-E 71141336

• Base module, complete
• End cover (item 8)
• Connecting cable to connect to the power unit
• Instructions for spare parts kit CM44x

Kit CM44x: terminal set, base module 71107452

9 Kit CM44x: cover KS field housing cpl. with display 71104106

• Cover KS field housing cpl. with display
• Display cable
• Instructions for spare parts kit CM44x

10, 12 Kit CM44x: internal housing parts, mechanical 71101765

• Insert side panels (item 10)
• Cable mounting rail with double clamps and screws (item 12)
• Instructions for spare parts kit CM44x

11 Kit CM444/CM448: expansion power unit On request

• EPS-H or EPS-L expansion power unit
• Instructions for spare parts kit CM44x

No graphic Kit CM44x: connecting cable, power unit 71155580

• To connect to base module BASE-E
• Instructions for spare parts kit CM44x

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Item Kit CM44x Order number

14 Kit CM44x/ CM44xR: extension module AOR (2 relays + 2 current outputs) 71111053
• Extension module AOR, complete
• Instructions for spare parts kit CM44x

Kit CM44x/CM44xR: terminal set, extension module AOR 71107453

Kit CM44x/CM44xR: extension module 2R (2 relays) 71125375

• Extension module 2R complete
• Instructions for spare parts kit CM44x

Kit CM44x/CM44xR: extension module 4R (4 relays) 71125376

• Extension module 4R complete
• Instructions for spare parts kit CM44x

Kit CM44x/CM44xR: terminal set, extension module 2R, 4R 71155581

Kit CM44x/CM44xR: extension module 2AO (2 x 0/4 to 20 mA) 71135632

• Extension module 2AO complete
• Instructions for spare parts kit CM44x

Kit CM44x/CM44xR: extension module 4AO (4 x 0/4 to 20 mA) 71135633

• Extension module 4AO complete
• Instructions for spare parts kit CM44x

Kit CM44x/CM44xR: terminal set, extension module 2AO, 4AO 71155582

Kit CM44x/CM44xR: extension module DIO (2 x digital input, digital output in each 71135638
case)
• Extension module DIO, complete
• Instructions for CM44x/CM44xR spare parts kits

Kit CM44x/CM44xR: terminal set, extension module DIO 71219784

Kit CM44x/CM44xR: extension module 2DS (2 x digital sensor) 71135631

• Extension module 2DS complete
• Instructions for spare parts kit CM44x

Kit CM44x/CM44xR: extension module 2AI (2 x analog input 0/4 to 20 mA) 71135639
• Extension module 2AI complete
• Instructions for spare parts kit CM44x

Kit CM44x/CM44xR: extension module 485 (Ethernet configuration) 71135634

• Extension module 485 complete
• With activation code extendable to PROFIBUS DP or Modbus RS 485 or
Modbus TCP or EtherNet/IP
• Instructions for spare parts kit CM44x

Kit CM44x/CM44xR: terminal set for extension module 2AI, 485 71155583

15 Kit CM44x: set of 6 glands, metric 71101768

• Accessories kit, M cable glands
• Instructions for spare parts kit CM44x

Kit CM44x: set of 6 glands, NPT 71101770

• Accessories kit, NPT cable glands
• Instructions for spare parts kit CM44x

Kit CM44x: set of 6 glands, G 71101771

• Accessories kit, G cable glands
• Instructions for spare parts kit CM44x

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Item Kit CM44x Order number

16 M12 socket 71107456

• 6-pin, complete with cables

No graphic Kit CM44x: field housing display cable 71101762

• Display cable
• Instructions for spare parts kit CM44x

No graphic Kit CM44x: dummy plug for cable bushing 71104942

• 6 pcs

No graphic Kit CM44x: set of hinges 71107454

• 10 pcs

No graphic CDI plug-in connector with counter nut M20x1.5 51517507

13.2 Return
The product has to be returned in the event of repair, factory calibration, incorrect delivery or
incorrect ordering. As an ISO-certified company and due to legal regulations, Endress+Hauser is
obligated to use particular handling techniques for all returned products that have come into
contact with a medium.
In order to ensure a reliable, proper and quick return:
Learn about the methods and basic conditions at the Internet site
www.services.endress.com/return-material

13.3 Disposal
The device contains electronic components and must therefore be disposed of in accordance
with regulations on the disposal of electronic waste.
Please observe local regulations.
The battery located on the backplane must be disposed of in accordance with local
regulations governing the disposal of batteries.

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14 Accessories
The most important accessories available at the time this document went to print are listed
below. Contact your service representative or Sales Center for accessories that are not listed
here.

14.1 Weather protection cover

CYY101 weather protection cover for field devices - absolutely essential if operating the unit
outdoors
• Material: stainless steel 1.4301 (AISI 304)
• Order No. CYY101-A

14.2 Post mounting kit

CM44x post mounting kit
• For securing the field housing to horizontal and vertical posts and pipes
• Order No. 71096920

14.3 Measuring cable

Memosens data cable CYK10
• For digital sensors with Memosens technology
pH, redox, oxygen (amperometric), chlorine, conductivity (conductive)
• Order as per product structure (--> Online Configurator, www.products.endress.com/cyk10)
• Technical Information TI00118C/07/EN
Memosens data cable CYK11
• Extension cable for digital sensors with Memosens protocol
• Order as per product structure (--> Online Configurator, www.products.endress.com/cyk11)
Measuring cable CYK81
• Unterminated cable for extending sensor cables (e.g. Memosens)
• 2 x 2 cores, twisted with shielding and PVC sheath (2 x 2 x 0.5 mm2 + shielding)
• Material sold by the meter, Order No.: 51502543

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14.4 Sensors
14.4.1 Glass electrodes
Orbisint CPS11D
• pH sensor with Memosens technology
• Dirt-resistant PTFE diaphragm
• Order as per product structure (--> Online Configurator, www.products.endress.com/cps11d)
• Technical Information TI00028C/07/EN
Memosens CPS31D
• pH sensor with Memosens technology
• Gel-filled reference system with ceramic diaphragm
• Order as per product structure (--> Online Configurator, www.products.endress.com/cps31d)
• Technical Information TI00030C/07/EN
Ceraliquid CPS41D
• pH sensor with Memosens technology
• Ceramic diaphragm and KCl liquid electrolyte
• Order as per product structure (--> Online Configurator, www.products.endress.com/cps41d)
• Technical Information TI00079C/07/EN
Ceragel CPS71D
• pH sensor with Memosens technology
• Poison-resistant reference with ion trap
• Order as per product structure (--> Online Configurator, www.products.endress.com/cps71d)
• Technical Information TI00245C/07/EN
Orbipore CPS91D
• pH sensor with Memosens technology
• Open aperture junction for media with high potential for fouling
• Order as per product structure (--> Online Configurator, www.products.endress.com/cps91d)
• Technical Information TI00375C/07/EN
Orbipac CPF81D
• pH compact sensor for installation or immersion operation in industrial water and wastewater
• Order as per product structure (--> Online Configurator, www.products.endress.com/cpf81d)
• Technical Information TI191C/07/EN

14.4.2 Enamel pH electrodes

Ceramax CPS341D
• pH electrode with pH-sensitive enamel
• For the toughest requirements in terms of precision, pressure, temperature, sterility and
operating life
• Order as per product structure (--> Online Configurator,
www.products.endress.com/cps341d)
• Technical Information TI00468C/07/EN

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14.4.3 ORP sensors

Orbisint CPS12D
• ORP sensor with Memosens technology
• Dirt-resistant PTFE diaphragm;
• Order as per product structure (--> Online Configurator, www.products.endress.com/cps12d)
• Technical Information TI367C/07/EN
Ceraliquid CPS42D
• ORP sensor with Memosens technology
• Ceramic diaphragm and KCl liquid electrolyte
• Order as per product structure (--> Online Configurator, www.products.endress.com/cps42d)
• Technical Information TI373C/07/EN
Ceragel CPS72D
• ORP sensor with Memosens technology
• Poison-resistant reference with ion trap
• Order as per product structure (--> Online Configurator, www.products.endress.com/cps72d)
• Technical Information TI374C/07/EN
Orbipac CPF82D
• Redox compact sensor for installation or immersion operation in industrial water and
wastewater
• Order as per product structure (--> Online Configurator, www.products.endress.com/cpf82d)
• Technical Information TI191C/07/EN
Orbipore CPS92D
• ORP sensor with Memosens technology
• Open aperture junction for media with high potential for fouling
• Order as per product structure (--> Online Configurator, www.products.endress.com/cps92d)
• Technical Information TI435C/07/EN

14.4.4 pH-ISFET sensors

Tophit CPS471D
• Sterilizable and autoclavable ISFET sensor with Memosens technology
• For food and pharmaceutical industry, process engineering, water treatment and
biotechnology
• Order as per product structure (--> Online Configurator,
www.products.endress.com/cps471d)
• Technical Information TI283C/07/EN
Tophit CPS441D
• Sterilizable ISFET sensor with Memosens technology
• For low-conductivity media, with liquid KCl electrolyte
• Order as per product structure (--> Online Configurator,
www.products.endress.com/cps441d)
• Technical Information TI352C/07/EN

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Tophit CPS491D
• ISFET sensor with Memosens technology
• Open aperture diaphragm for media with high potential for fouling
• Order as per product structure (--> Online Configurator,
www.products.endress.com/cps491d)
• Technical Information TI377C/07/EN

14.4.5 pH/ORP combined sensors

Memosens CPS16D
• Combined pH/ORP sensor for process technology, with dirt-repellent PTFE diaphragm
• With Memosens technology
• Order as per product structure (--> Online Configurator, www.products.endress.com/cps16d)
• Technical Information TI00503C/07/EN
Memosens CPS76D
• Combined pH/ORP sensor for process technology, hygiene and sterile applications
• With Memosens technology
• Order as per product structure (--> Online Configurator, www.products.endress.com/cps76d)
• Technical Information TI00506C/07/EN
Memosens CPS96D
• Combined pH/ORP sensor for chemical processes
• With poison-resistant reference with ion trap
• With Memosens technology
• Order as per product structure (--> Online Configurator, www.products.endress.com/cps96d)
• Technical Information TI00507C/07/EN

14.4.6 Inductive conductivity sensors

Indumax CLS50D
• Inductive conductivity sensor with very good resistance properties for standard, Ex and
high-temperature applications
• Memosens protocol
• Order as per product structure (--> Online Configurator, www.products.endress.com/cls50d)
• Technical Information TI182C/07/EN
Indumax H CLS54D
• Inductive conductivity sensor with certified, hygienic design for foodstuffs, beverages, the
pharmaceutical industry and biotechnology
• Order as per product structure, (--> Online Configurator, www.products.endress.com/cls54d)
• Technical Information TI00508C/07/EN

14.4.7 Conductive conductivity sensors

Condumax CLS15D
• Conductive conductivity sensor for pure water, ultrapure water and Ex applications
• Order as per product structure (--> Online Configurator, www.products.endress.com/cls15d)
• Technical Information TI00109C/07/EN

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Condumax CLS16D
• Hygienic, conductive conductivity sensor for pure water, ultrapure water and EX applications
• With EHEDG and 3A approval
• Order as per product structure (--> Online Configurator, www.products.endress.com/cls16d)
• Technical Information TI227C/07/EN
Condumax CLS21D
• Two-electrode sensor in plug-in head and fixed cable version
• Order as per product structure (--> Online Configurator, www.products.endress.com/cls21d)
• Technical Information TI085C/07/EN

14.4.8 Oxygen sensors

Oxymax COS51D
• Amperometric sensor for dissolved oxygen, with Memosens technology
• Order as per product structure (--> Online Configurator, www.products.endress.com/cos51d)
• Technical Information TI00413C/07/EN
Oxymax COS61D
• Optical oxygen sensor for drinking water and industrial water measurement
• Measuring principle: quenching
• Memosens protocol
• Material: stainless steel 1.4571 (AISI 316Ti)
• Order as per product structure (--> Online Configurator, www.products.endress.com/cos61d)
• Technical Information TI387C/07/EN
Oxymax COS22D
• Sterilizable sensor for dissolved oxygen
• Order as per product structure (--> Online Configurator, www.products.endress.com/cos22d)
• Technical Information TI446C/07/EN

14.4.9 Chlorine sensors

CCS142D
• Membrane-covered amperometric sensor for free chlorine
• Memosens technology
• Measuring range 0.01 to 20 mg/l
• Order as per product structure (--> Online Configurator,
www.products.endress.com/ccs142d)
• Technical Information TI419C/07/EN

14.4.10 Ion-selective sensors

ISEmax CAS40D
• Ion-selective sensors
• Order as per product structure (--> Online Configurator, www.products.endress.com/cas40d)
• Technical Information TI491C/07/EN

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14.4.11 Turbidity sensors

Turbimax CUS51D
• For nephelometric turbidity and solids measurement in wastewater
• 4-beam alternating light method based on scattered light
• With Memosens protocol
• Order as per product structure (--> Online Configurator, www.products.endress.com/cus51d)
• Technical Information TI461C/07/EN

14.4.12 SAC and nitrate sensors

Viomax CAS51D
• SAC and nitrate measurement in drinking water and wastewater
• With Memosens protocol
• Order as per product structure (--> Online Configurator, www.products.endress.com/cas51d)
• Technical Information TI459C/07/EN

14.4.13 Interface measurement

Turbimax CUS71D
• Immersion sensor for interface measurement
• Ultrasonic interface sensor
• Order as per product structure (--> Online Configurator, www.products.endress.com/cus71d)
• Technical Information TI490C/07/EN

14.5 Additional functionality

14.5.1 Hardware extension modules
Kit CM442/CM444/CM448/CM442R/CM444R/CM448R/CSF48: extension module AOR
• 2 x relay, 2 x analog output 0/4 to 20 mA
• Order No. 71111053
Kit CM442/CM444/CM448/CM442R/CM444R/CM448R/CSF48: extension module 2R
• 2 x relay
• Order No. 71125375
Kit CM442/CM444/CM448/CM442R/CM444R/CM448R/CSF48: extension module 4R
• 4 x relay
• Order No. 71125376
Kit CM442/CM444/CM448/CM442R/CM444R/CM448R/CSF48: extension module 2AO
• 2 x analog output 0/4 to 20 mA
• Order No. 71135632
Kit CM444/CM448/CM444R/CM448R/CSF48: extension module 4AO
• 4 x analog output 0/4 to 20 mA
• Order No. 71135633

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Kit CM444/CM448/CM444R/CM448R/CSF48: extension module 2DS

• 2 x digital sensor, Memosens
• Order No. 71135631
Kit CM442/CM444/CM448/CM442R/CM444R/CM448R/CSF48: extension module 2AI
• 2 x analog input 0/4 to 20 mA
• Order No. 71135639
Kit CM442/CM444/CM448/CM442R/CM444R/CM448R/CSF48: extension module DIO
• 2 x digital input
• 2 x digital output
• Auxiliary voltage supply for digital output
• Order no. 71135638
Kit CM442/CM444/CM448/CM442R/CM444R/CM448R/CSF48: extension module 485
• Ethernet configuration
• Can be extended to PROFIBUS DP or Modbus RS485 or Modbus TCP or EtherNet/IP. This
requires an additional activation code which can be ordered separately (→ ä 152).
• Order No. 71135634
Upgrade kit CM442/CM444/CM448/CM442R/CM444R/CM448R/CSF48
• Extension module 485
• PROFIBUS DP (+ Ethernet configuration)
• Order No. 71140888
Upgrade kit CM442/CM444/CM448/CM442R/CM444R/CM448R/CSF48
• Extension module 485
• Modbus RS485 (+ Ethernet configuration)
• Order No. 71140889
Upgrade kit CM442/CM444/CM448/CM442R/CM444R/CM448R/CSF48
• Extension module 485
• Modbus TCP (+ Ethernet configuration)
• Order No. 71140890
Upgrade kit CM442/CM444/CM448/CM442R/CM444R/CM448R/CSF48
• Extension module 485
• EtherNet/IP (+ Ethernet configuration)
• Order No. 71219868
Kit CM442: upgrade kit to CM444/CM448
• Extension power supply unit 100 to 230 V AC and extension backplane
• Base module BASE-E
• Order No. 71135644
Kit CM442: upgrade kit to CM444/CM448
• Extension power supply unit 24 V DC and extension backplane
• Base module BASE-E
• Order no. 71211434

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14.5.2 Firmware and activation codes

SD card with Liquiline firmware
• Industrial Flash Drive, 1 GB
• Order No. 71127100
Activation code for digital HART communication
• Order No. 71128428
Activation code for PROFIBUS DP
• Order No. 71135635
Activation code for Modbus RS485
• Order No. 71135636
Activation code for Modbus TCP
• Order No. 71135637
Activation code for EtherNet/IP
• Order No. 71219871
Kit CM442: Activation code for 2nd digital sensor input
• Order No. 71114663
Kit CM444/CM448: Upgrade code for 2 x 0/4 to 20 mA for BASE-E
• Order No. 71140891
Activation code for feedforward control
• Order no. 71211288
Activation code for measuring range switch
• Order no. 71211289

14.6 Software
Memobase Plus CYP71D
• PC software for supporting laboratory calibration
• Visualization and documentation of sensor management
• Database storage of sensor calibrations
• Order as per product structure, www.products.endress.com/cyp71d
• Technical Information TI00502C/07/EN
MS30 Field Data Manager software
• PC software for centralized data management
• Visualization of measurement series and logbook events
• SQL database for secure storage
• Order No. 71129799

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14.7 Other accessories

14.7.1 SD card
SD card
• Industrial Flash Drive, 1 GB
• Order No. 71110815

14.7.2 Cable glands

Kit CM44x: gland M
• Set, 6 pieces
• Order No. 71101768
Kit CM44x: gland NPT
• Set, 6 pieces
• Order No. 71101770
Kit CM44x: gland G
• Set, 6 pieces
• Order No. 71101771
Kit CM44x: dummy plug for cable gland
• Set, 6 pieces
• Order No. 71104942

14.7.3 M12 socket and cable junction

Kit CM42/CM442/CM444/CM448: External CDI port
• Socket with terminated connecting cables and counter nut
• Order no. 51517507
Kit CM442/CM444/CM448/CSF48: M12 socket for digital sensors
• Prefabricated
• Order No. 71107456
Kit CM442/CM444/CM448/CSF48: M12 socket for PROFIBUS DP/Modbus RS485
• B-encoded, prefabricated
• Order No. 71140892
Kit CM442/CM444/CM448/CSF48: M12 socket for Ethernet
• D-encoded, prefabricated
• Order No. 71140893
Cable junction with Velcro strip
• 4 pieces, for sensor cable
• Order No. 71092051

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14.7.4 Communication-specific accessories

Commubox FXA195 HART
• Intrinsically safe HART communication with FieldCare via the USB port
• Technical Information TI00404F
Commubox FXA291
• Connects the CDI interface of measuring devices with the USB port of the computer or laptop
• Technical Information TI00405C
WirelessHART adapter SWA70
• Wireless device connection
• Easily integrated, offers data protection and transmission safety, can be operated in parallel
with other wireless networks, minimum cabling complexity
• Technical Information TI00061S
Fieldgate FXA320
• Gateway for the remote interrogation of 4-20 mA measuring devices via a Web browser
• Technical Information TI00025S
Fieldgate FXA520
• Gateway for the remote diagnostics and configuration of connected HART devices via a Web
browser
• Technical Information TI00051S
Field Xpert SFX100
• Compact, flexible and robust industrial handheld terminal for remote configuration and for
obtaining measured values via the HART current output
• Operating Instructions BA00060S

14.7.5 System components

RIA14, RIA16
• Field display unit for integration into 4-20 mA circuits
• RIA14 in flameproof metal enclosure
• Technical Information TI00143R and TI00144R
RIA15
• Process display unit, Digital display unit for integration into 4-20 mA circuits
• Panel mounting
• With optional HART communication
• Technical Information TI01043K

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15 Technical data
15.1 Input
15.1.1 Measured variables
--> Documentation of the connected sensor

15.1.2 Measuring ranges

--> Documentation of the connected sensor

15.1.3 Input types

• digital sensor inputs for sensors with Memosens protocol
• Analog current inputs (optional)
• Digital inputs (optional)

15.1.4 Input signal

Depending on version
• Max. 8 x binary sensor signal
• 2 x 0/4 to 20 mA (optional), passive, potentially isolated from the sensor inputs and from one
another
• 0 to 30 V

15.1.5 Cable specification

Cable type
Memosens data cable CYK10 or fixed sensor cable, each with cable end sleeves or M12
round-pin connector

Cable length
Max. 100 m (330 ft)

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15.2 Digital inputs, passive

15.2.1 Electrical specification
• drawing power (passive)
• galvanically isolated

15.2.2 Span

High: 11 to 30 V DC
Low: 0 to 5 V DC

15.2.3 Nominal input current

Max. 8 mA

15.2.4 PFM function

Minimum pulse width: 500 μs (1 kHz)

15.2.5 Testing voltage

500 V

15.2.6 Cable specification

Max. 2.5 mm2 (14 AWG)

15.3 Current input, passive

15.3.1 Span
> 0 to 20 mA

15.3.2 Signal characteristic

Linear

15.3.3 Internal resistance

Non-linear

15.3.4 Testing voltage

500 V

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15.4 Output
15.4.1 Output signal
Depending on version:
• 2 x 0/4 to 20 mA, active, potentially isolated from one another and from the sensor circuits
• 4 x 0/4 to 20 mA, active, potentially isolated from one another and from the sensor circuits
• 6 x 0/4 to 20 mA, active, potentially isolated from one another and from the sensor circuits
• 8 x 0/4 to 20 mA, active, potentially isolated from one another and from the sensor circuits
• Optional HART communication (only via current output 1:1)

HART

Signal encoding FSK ± 0.5 mA via current signal

Data transmission rate 1200 Baud

Galvanic isolation Yes

Load (communication resistor) 250 Ω

PROFIBUS DP

Signal encoding EIA/TIA-485, PROFIBUS-DP-compliant as per IEC 61158

Data transmission rate 9.6 kBd, 19.2 kBd, 45.45kBd, 93.75 kBd, 187.5 kBd, 500 kBd, 1.5 MBd,
6 MBd, 12 MBd

Galvanic isolation Yes

Connector Spring terminal (max. 1.5 mm), bridged internally (T-function), optional
M12

Bus termination Internal slide switch with LED display

Modbus RS485

Signal encoding EIA/TIA-485

Data transmission rate 2400, 4800, 9600, 19200, 38400, 57600 and 115200 Baud

Galvanic isolation Yes

Connector Spring terminal (max. 1.5 mm), bridged internally (T-function), optional
M12

Bus termination Internal slide switch with LED display

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Ethernet and Modbus TCP

Signal encoding IEEE 802.3 (ethernet)

Data transmission rate 10 / 100 MBd

Galvanic isolation Yes

Connection RJ45, optional M12

IP address DHCP or configuration via menu

EtherNet/IP

Signal encoding IEEE 802.3 (ethernet)

Data transmission rate 10 / 100 MBd

Galvanic isolation Yes

Connection RJ45, optional M12 (D-encoded)

IP address DHCP (default) or configuration via menu

15.4.2 Signal on alarm

Adjustable, as per NAMUR Recommendation NE 43
• In measuring range 0 to 20 mA (HART is not available with this measuring range):
Error current from 0 to 23 mA
• In measuring range 4 to 20 mA:
Error current from 2.4 to 23 mA
• Error current factory setting for both measuring ranges:
21.5 mA

15.4.3 Load
Max. 500 Ω

15.4.4 Linearization/transmission behavior

Linear

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15.5 Digital outputs, passive

15.5.1 Electrical specification
• Passive
• Open collector, max. 30 V, 15 mA

15.5.2 PFM function

Minimum pulse width: 500 μs (1 kHz)

15.5.3 Auxiliary voltage

Electrical specification
• Galvanically isolated
• Unregulated, 24 V DC ± 20%
• Max. 50 mA

15.5.4 Testing voltage

500 V

15.5.5 Cable specification

Max. 2.5 mm2 (14 AWG)

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15.6 Current output, active

15.6.1 Span
0 to 23 mA
2.4 to 23 mA for HART communication

15.6.2 Signal characteristic

Linear

15.6.3 Electrical specification

Output voltage
Max. 24 V

Testing voltage
500 V

15.6.4 Cable specification

Cable type
Recommended: shielded cable

Cross-section
Max. 2.5 mm2 (14 AWG)

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15.7 Relay outputs

15.7.1 Relay types
• 1 single-pin changeover contact (alarm relay)
• 2 or 4 single-pin changeover contacts (optional with extension modules)

15.7.2 Relay switching capacity

Base module (alarm relay)

Switching voltage Load (max.) Switching cycles (min.)

230 V AC, cosφ = 0.8 to 1 0.1 A 700,000

0.5 A 450,000

115 V AC, cosφ = 0.8 to 1 0.1 A 1,000,000

0.5 A 650,000

24 V DC, L/R = 0 to 1 ms 0.1 A 500,000

0.5 A 350,000

Extension modules

Switching voltage Load (max.) Switching cycles (min.)

230 V AC, cosφ = 0.8 to 1 0.1 A 700,000

0.5 A 450,000

2A 120,000

115 V AC, cosφ = 0.8 to 1 0.1 A 1,000,000

0.5 A 650,000

2A 170,000

24 V DC, L/R = 0 to 1 ms 0.1 A 500,000

0.5 A 350,000

2A 150,000

Minimum load (typical)

• Min. 100 mA for 5 V DC
• Min. 1 mA for 24 V DC
• Min. 5 mA for 24 V AC
• Min. 1 mA for 230 V AC

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15.7.3 Cable cross-section

Max. 2.5 mm2 (14 AWG)

15.8 Protocol-specific data

15.8.1 HART

Manufacturer ID 11h

Device type 119Ch (CM44x), 119Dh (CSFxx)

Device revision 001h

HART version 7.2

Device description files (DD/DTM) www.endress.com

Device Integration Manager (DIM)

Device variables 16 user-definable and 16 predefined device variables, dynamic variables

PV, SV, TV, QV

Supported features PDM DD, AMS DD, DTM, Field Xpert DD

15.8.2 PROFIBUS DP

Manufacturer ID 11h

Device type 155Dh (CM44x)

Profile version 3.02

Device master files (GSD) www.products.endress.com/profibus

Device Integration Manager DIM

Output 16 AI blocks, 8 DI blocks

Input 4 AO blocks, 8 DO blocks

Supported features • 1 MSCY0 connection (cyclic communication, master Class 1 to slave)

• 1 MSAC1 connection (acyclic communication, master Class 1 to slave)
• 2 MSAC2 connections (acyclic communication, master Class 2 to
slave)
• Device lock: the device can be locked via the hardware or software.
• Addressing using DIL switches or via the software
• GSD, PDM DD, DTM

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15.8.3 Modbus RS485

Protocol RTU / ASCII

Function codes 03, 04, 06, 08, 16, 23

Broadcast support for function codes 06, 16, 23

Output data 16 measured values (value, unit, status), 8 digital values (value, status)

Input data 4 setpoint values (value, unit, status), 8 digital values (value, status),
diagnostics information

Supported features Address can be configured via switches or the software

15.8.4 Modbus TCP

TCP port 502

TCP connections 3

Protocol TCP

Function codes 03, 04, 06, 08, 16, 23

Broadcast support for function codes 06, 16, 23

Output data 16 measured values (value, unit, status), 8 digital values (value, status)

Input data 4 setpoint values (value, unit, status), 8 digital values (value, status),
diagnostics information

Supported features Address can be configured via DHCP or the software

15.8.5 EtherNet/IP

Protocol EtherNet/IP

ODVA certification Yes

Device profile Generic device (product type: 0x2B)

Manufacturer ID 0x049Eh

Device type ID 0x109Ch

Polarity Auto-MIDI-X

Connections (max.) CIP 12

I/O 6

Explicit Message 6

Multicast 3 consumers

Minimum RPI 100 ms (default)

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Maximum RPI 10000 ms

System integration EtherNet/IP EDS

Rockwell Add-on-Profile Level 3, Faceplate for FactoryTalk SE

IO data Input (T --> O) Device status and top-priority diagnostic message

Measured values:
• 16 AI (analog input) + status + unit
• 8 DI (discrete input) + status

Output (O --> T) Actuating values:

• 4 A0 (analog output) + status + unit
• 8 DO (discrete output) + status

15.8.6 Web server

The web server enables full access to the device configuration, measured values, diagnostic
messages, logbooks and service data via standard WiFi/WLAN/LAN/GSM or 3G router with a
user-defined IP address.

TCP port 80

Supported features • Remote-controlled device configuration (1 session)

• Device configuration saved/restored
• Logbook export (file formats: CSV, FDM)
• Web server accessed via DTM or Internet Explorer
• Login
• Web server can be switched off

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15.9 Power supply

15.9.1 Supply voltage
CM442
Depending on the version:
100 to 230 V AC ± 15 %, 50/60 Hz
24 V AC/DC +20 / -15 %, 50/60 Hz
CM444 and CM448
Depending on the version:
100 to 230 V AC ± 15 %, 50/60 Hz
24 V DC +20 / -15 %

15.9.2 Cable entries

Identification of the cable entry on the base of the housing Suitable gland

B, C, H, I, 1-8 M16x1.5 mm / NPT3/8" / G3/8

A, D, F, G M20x1.5 mm / NPT1/2" / G1/2

E -

) M12x1.5 mm

Recommended assignment

1-8 Sensors 1-8

A Power supply
B RS485 In or M12 DP/RS485
C Do not use
D, F, G Current outputs and inputs, relays
H Do not use
I RS485 Out or M12 Ethernet
E Do not use

a0018025

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15.9.3 Cable specification

Cable gland Permitted cable diameter

M16x1.5 mm 4 to 8 mm (0.16 to 0.32")

M12x1.5 mm 2 to 5 mm (0.08 to 0.20")

M20x1.5 mm 6 to 12 mm (0.24 to 0.48")

NPT3/8" 4 to 8 mm (0.16 to 0.32")

G3/8 4 to 8 mm (0.16 to 0.32")

NPT1/2" 6 to 12 mm (0.24 to 0.48")

G1/2 7 to 12 mm (0.28 to 0.48")

Cable glands mounted at the factory are tightened with 2 Nm.

15.9.4 Power consumption

CM442
Depending on supply voltage
• 100 to 230 V AC and 24 V AC:
Max. 55 VA
• 24 V DC:
Max. 22 W
CM444 and CM448
Depending on supply voltage
• 100 to 230 V AC:
Max. 73 VA
• 24 V DC:
Max. 68 W

15.9.5 Mains fuse

CM442
5x20 mm, 250 V, 4.0 A, slow-blow (T4.0A)
CM444 and CM448
Fuse is not exchangeable

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15.10 Performance characteristics

15.10.1 Response time
Current outputs
t90 = max. 500 ms for an increase from 0 to 20 mA
Current inputs
t90 = max. 330 ms for an increase from 0 to 20 mA
Digital inputs and outputs
t90 = max. 330 ms for an increase from low to high

15.10.2 Reference temperature

25 ˚C (77 ˚F)

15.10.3 Maximum measured error sensor inputs

--> Documentation of the connected sensor

15.10.4 Measured error current inputs and outputs

Typical measured errors:
< 20 μA (for current values < 4 mA)
< 50 μA (for current values 4 to 20 mA)
each at 25 ˚C (77˚ F)
Additional deviation depending on the temperature:
< 1.5 μA/K

15.10.5 Frequency tolerance of digital inputs and outputs

≤1%

15.10.6 Resolution of current inputs and outputs

< 5 μA

15.10.7 Repeatability
--> Documentation of the connected sensor

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15.11 Environment
15.11.1 Ambient temperature range
CM442
–20 to 60 ˚C (0 to 140 ˚F)
CM444
• –20 to 55 ˚C (0 to 130 ˚F) in general, with the exception of the packages listed under the 2nd
bullet point
• –20 to 50 ˚C (0 to 120 ˚F) for the following packages:
– CM444-**M40A7FI******+...
– CM444-**M40A7FK******+...
– CM444-**N40A7FI******+...
– CM444-**N40A7FK******+...
CM448
• –20 to 55 ˚C (0 to 130 ˚F) in general, with the exception of the packages listed under the 2nd
bullet point
• –20 to 50 ˚C (0 to 120 ˚F) for the following packages:
– CM448-***6AA******+...
– CM448-***8A4******+...
– CM448-***8A5******+...
– CM448-**28A3******+...
– CM448-**38A3******+...
– CM448-**48A3******+...
– CM448-**58A3******+...
– CM448-**68A3******+...
– CM448-**26A5******+...
– CM448-**36A5******+...
– CM448-**46A5******+...
– CM448-**56A5******+...
– CM448-**66A5******+...
– CM448-**22A7******+...
– CM448-**32A7******+...
– CM448-**42A7******+...
– CM448-**52A7******+...
– CM448-**62A7******+...

15.11.2 Storage temperature

–40 to 80 ˚C (–40 to 175 ˚F)

15.11.3 Humidity
10 to 95%, not condensating

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15.11.4 Degree of protection

IP 66/67, impermeability and corrosion resistance as per NEMA TYPE 4X

15.11.5 Vibration resistance

Environmental tests
Vibration test based on DIN EN 60068-2, October 2008
Vibration test based on DIN EN 60654-3, August 1998

Post or pipe mounting

Frequency range 10 to 500 Hz (sinusoidal)
Amplitude 10 to 57.5 Hz: 0.15 mm
57.5 to 500 Hz: 2 g 1)
Test duration 10 frequency cycles/ spatial axis, in 3 spatial axes (1 oct./min)

Wall mounting
Frequency range 10 to 150 Hz (sinusoidal)
Amplitude 10 to 12.9 Hz: 0.75 mm
12.9 to 150 Hz: 0.5 g 1)
Test duration 10 frequency cycles/ spatial axis, in 3 spatial axes (1 oct./min)

1) g ... gravitational acceleration (1 g ≈ 9.81 m/s2)

15.11.6 Electromagnetic compatibility

Interference emission and interference immunity as per EN 61326-1: 2006, class A for industry

15.11.7 Electrical safety

IEC 61010-1, Class I equipment
Low voltage: overvoltage category II
Environment < 3000 m (< 9840 ft) above MSL

15.11.8 Pollution degree

The product is suitable for pollution degree 4.

15.11.9 Pressure compensation to environment

Filter made of GORE-TEX used as pressure compensation element
Ensures pressure compensation to environment and guarantees IP protection.

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15.12 Mechanical construction

15.12.1 Dimensions
--> "Installation" section

15.12.2 Weight
Approx. 2.1 kg (4.63 lbs), depending on the version

15.12.3 Material

Lower housing section PC-FR

Display cover PC-FR

Display film and soft keys PE

Housing seal EPDM

Module side panels PC-FR

Module covers PBT GF30 FR

Cable mounting rail PBT GF30 FR, stainless steel 1.4301 (AISI304)

Clamps Stainless steel 1.4301 (AISI304)

Screws Stainless steel 1.4301 (AISI304)

Cable glands Polyamide V0 as per UL94

16 Installation and operation in hazardous environment

Class I Div. 2
16.1 Environment/properties
Non-sparking device for use in specified, explosive environment in accordance with:
• Class I Div. 2
• Gas group A, B, C, D
• Temperature class T4, Ta = 60 ˚C
• Control Drawing: 401204
• Suitable indoors and outdoors in accordance with NEMA 4X, IP66/67

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16.2 Control Drawing

a0018207

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Index

A C
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . 145 Cable cross-section . . . . . . . . . . . . . . . . . . . . 162
Activation codes . . . . . . . . . . . . . . . . . . . . . 152 Cable entries . . . . . . . . . . . . . . . . . . . . . . . . . 165
Cable glands . . . . . . . . . . . . . . . . . . . . . . . . 153 Cable glands . . . . . . . . . . . . . . . . . . . . . . . . . 153
Extension modules . . . . . . . . . . . . . . . . . . . 150 Cable grounding . . . . . . . . . . . . . . . . . . . . . . . 24
M12 socket . . . . . . . . . . . . . . . . . . . . . . . . . 153 Cable specification. . . . . . . . . . . . . . . . . 155, 166
Measuring cable . . . . . . . . . . . . . . . . . . . . . 145 Cable terminals . . . . . . . . . . . . . . . . . . . . . . . . 25
Post mounting kit . . . . . . . . . . . . . . . . . . . . 145 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
SD card . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 cCSAus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146 CE mark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 Check
Weather protection . . . . . . . . . . . . . . . . . . 145 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Activation code . . . . . . . . . . . . . . . . . . . . . . . . . 71 Post-connection . . . . . . . . . . . . . . . . . . . . . 41
Activation codes . . . . . . . . . . . . . . . . . . . . . . . 152 Post-installation . . . . . . . . . . . . . . . . . . . . . 19
Additional functions Chemoclean . . . . . . . . . . . . . . . . . . . . . . . 35, 105
Cleaning programs . . . . . . . . . . . . . . . . . . . 104 Chemoclean Plus . . . . . . . . . . . . . . . . . . . . . . 106
Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Cleaning
Limit switch . . . . . . . . . . . . . . . . . . . . . . . . . 90 Assemblies . . . . . . . . . . . . . . . . . . . . . . . . 140
Mathematical functions . . . . . . . . . . . . . . . 110 Chemoclean . . . . . . . . . . . . . . . . . . . . . . . . 105
Advanced setup Chemoclean Plus . . . . . . . . . . . . . . . . . . . . 106
Modbus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Controller. . . . . . . . . . . . . . . . . . . . . . . . . . 139
Alarm relay Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Manual cleaning . . . . . . . . . . . . . . . . . . . . 109
Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Diagnostics message. . . . . . . . . . . . . . . . . . . 79 Standard cleaning . . . . . . . . . . . . . . . . . . . 105
Limit switch . . . . . . . . . . . . . . . . . . . . . . . . . 76 Cleaning programs . . . . . . . . . . . . . . . . . . . . 104
Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Cleaning sensors . . . . . . . . . . . . . . . . . . . . . . 139
Assignment views. . . . . . . . . . . . . . . . . . . . . . . 57 Cleaning the controller . . . . . . . . . . . . . . . . . 139
Automatic hold . . . . . . . . . . . . . . . . . . . . . . . . . 60 Cleaning unit CAS40D. . . . . . . . . . . . . . . . . . . 35
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . 52
B Preparatory steps . . . . . . . . . . . . . . . . . . . . 40
Basic settings . . . . . . . . . . . . . . . . . . . . . . . . . . 58 Switching on the unit . . . . . . . . . . . . . . . . . 52
Basic setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Communication
Binary inputs and outputs . . . . . . . . . . . . . . . . 82 EtherNet/IP . . . . . . . . . . . . . . . . . . . . . . . . . 45
Bus address . . . . . . . . . . . . . . . . . . . . . . . . 40, 65 Fieldbus . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Bus termination . . . . . . . . . . . . . . . . . . . . . . . . 39 HART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Modbus . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
PROFIBUS . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Service interface . . . . . . . . . . . . . . . . . . . . . 44
Web server . . . . . . . . . . . . . . . . . . . . . . . . . 42

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Configuration D
Actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Data management
Customized text . . . . . . . . . . . . . . . . . . . . . . 50 Activation code . . . . . . . . . . . . . . . . . . . . . . 71
Display only . . . . . . . . . . . . . . . . . . . . . . . . . 48 Exporting the setup. . . . . . . . . . . . . . . . . . . 70
Numerical values . . . . . . . . . . . . . . . . . . . . . 49 Firmware update. . . . . . . . . . . . . . . . . . . . . 69
Picklists. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Loading the setup . . . . . . . . . . . . . . . . . . . . 70
Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Saving the setup . . . . . . . . . . . . . . . . . . . . . 69
Connecting the cable shield . . . . . . . . . . . . . . . 24 Data transmission rate . . . . . . . . . . . . . . . . . 157
Connection Date and time . . . . . . . . . . . . . . . . . . . . . . . . . 59
Cable grounding . . . . . . . . . . . . . . . . . . . . . . 24 DDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Cable shield . . . . . . . . . . . . . . . . . . . . . . . . . 24 Declaration of Conformity . . . . . . . . . . . . . . . 13
Cable terminals . . . . . . . . . . . . . . . . . . . . . . 25 Degree of protection . . . . . . . . . . . . . . . . 40, 169
Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Chemoclean . . . . . . . . . . . . . . . . . . . . . . . . . 35 Device architecture . . . . . . . . . . . . . . . . . . 10–11
Cleaning unit CAS40D . . . . . . . . . . . . . . . . . 35 Device behavior . . . . . . . . . . . . . . . . . . . . . . . 122
Current input . . . . . . . . . . . . . . . . . . . . . . . . 33 Device description . . . . . . . . . . . . . . . . . . . . . . . . 9
Current output . . . . . . . . . . . . . . . . . . . . . . . 34 Device description files . . . . . . . . . . . . . . . . . 162
Digital input/output . . . . . . . . . . . . . . . . . . . 33 Device information . . . . . . . . . . . . . . . . . . . . 133
Fieldbus . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Device status . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Protective ground . . . . . . . . . . . . . . . . . . . . . 24 Device test . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Device type . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . 30–32 Device variables. . . . . . . . . . . . . . . . . . . . 80, 162
Service interface . . . . . . . . . . . . . . . . . . . . . . 44 PROFIBUS . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Supply voltage . . . . . . . . . . . . . . . . . . . . 26, 28 Device-specific errors . . . . . . . . . . . . . . . . . . 120
Web server . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Diagnostic information
Connection conditions . . . . . . . . . . . . . . . . . . . 20 Fieldbus . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Control Drawing . . . . . . . . . . . . . . . . . . . . . . . 171 Onsite display . . . . . . . . . . . . . . . . . . . . . . 120
Controller . . . . . . . . . . . . . . . . . . . . . . . . . . 77, 95 Web browser . . . . . . . . . . . . . . . . . . . . . . . 120
Controller structure . . . . . . . . . . . . . . . . . . . . . 95 Diagnostic list . . . . . . . . . . . . . . . . . . . . . . . . 127
Creating a connection Diagnostic message
Service interface . . . . . . . . . . . . . . . . . . . . . . 44 Classification . . . . . . . . . . . . . . . . . . . . . . . 121
Web server . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Device behavior, adjusting . . . . . . . . . . . . 122
Current input Device-specific. . . . . . . . . . . . . . . . . . . . . . 124
Connection . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Pending message . . . . . . . . . . . . . . . . . . . 127
Technical data . . . . . . . . . . . . . . . . . . . . . . 156 Sensor-specific . . . . . . . . . . . . . . . . . . . . . 127
Current inputs . . . . . . . . . . . . . . . . . . . . . . . . . 72 Diagnostics
Current output Device test/reset . . . . . . . . . . . . . . . . . . . . 132
Connection . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Event logbook . . . . . . . . . . . . . . . . . . . . . . 127
Technical data . . . . . . . . . . . . . . . . . . . . . . 160 Sensor information . . . . . . . . . . . . . . . . . . 135
Simulation . . . . . . . . . . . . . . . . . . . . . . . . . 131
System information . . . . . . . . . . . . . . . . . 133
Diagnostics settings . . . . . . . . . . . . . . . . . . . . 64
Digital input . . . . . . . . . . . . . . . . . . . . . . . . . 156
Digital input/output
Connection . . . . . . . . . . . . . . . . . . . . . . . . . 33
Digital output . . . . . . . . . . . . . . . . . . . . . . . . 159
Dimensions . . . . . . . . . . . . . . . . . . . . . . . 14, 170
Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . 19

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Display . . . . . . . . . . . . . . . . . . . . . . . . . . . 46, 55 F
Assignment views. . . . . . . . . . . . . . . . . . . . . 57 Fieldbus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Device status . . . . . . . . . . . . . . . . . . . . . . . . . 56 M12 connector . . . . . . . . . . . . . . . . . . . . . . 37
Measuring mode. . . . . . . . . . . . . . . . . . . . . . 55 Module 485. . . . . . . . . . . . . . . . . . . . . . . . . 36
Soft keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Setting the address via the hardware . . . . . 40
Display icons . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Termination. . . . . . . . . . . . . . . . . . . . . . . . . 39
Display settings. . . . . . . . . . . . . . . . . . . . . . . . . 52 Fieldbuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Firmware history . . . . . . . . . . . . . . . . . . . . . . 136
Firmware update
E Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Electrical connection . . . . . . . . . . . . . 20, 23–37 FM/CSA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Cable entries . . . . . . . . . . . . . . . . . . . . . . . . 165
Cable specification . . . . . . . . . . . . . . . . . . . 166 G
Mains fuse . . . . . . . . . . . . . . . . . . . . . . . . . 166 Galvanic isolation . . . . . . . . . . . . . . . . . . . . . 157
Power consumption . . . . . . . . . . . . . . . . . . 166 General settings
Electrical safety. . . . . . . . . . . . . . . . . . . . . . . . 169 Automatic hold . . . . . . . . . . . . . . . . . . . . . . 60
Electrical technician . . . . . . . . . . . . . . . . . . . . . 20 Basic settings. . . . . . . . . . . . . . . . . . . . . . . . 58
Electromagnetic compatibility . . . . . . . . . . . . . . 8 Date and time . . . . . . . . . . . . . . . . . . . . . . . 59
EMC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 Extended setup . . . . . . . . . . . . . . . . . . . . . . 64
Environment Logbooks . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Ambient temperature range . . . . . . . . . . . 168
Degree of protection. . . . . . . . . . . . . . . . . . 169 H
Electrical safety. . . . . . . . . . . . . . . . . . . . . . 169 HART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
EMC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Pollution degree . . . . . . . . . . . . . . . . . . . . . 169 Quick wiring guide . . . . . . . . . . . . . . . . . . . 20
Pressure compensation . . . . . . . . . . . . . . . 169 HART version . . . . . . . . . . . . . . . . . . . . . . . . 162
Relative humidity . . . . . . . . . . . . . . . . . . . . 168 Housing
Storage temperature. . . . . . . . . . . . . . . . . . 168 Closed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Vibration resistance . . . . . . . . . . . . . . . . . . 169 Open . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Error categories . . . . . . . . . . . . . . . . . . . . . . . 121
Ethernet I
Quick wiring guide . . . . . . . . . . . . . . . . . . . . 22 Identification
EtherNet/IP . . . . . . . . . . . . . . . . . . . . . . . 67, 81 Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . . 12
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Serial number . . . . . . . . . . . . . . . . . . . . . . . 13
Quick wiring guide . . . . . . . . . . . . . . . . . . . . 22 Incoming acceptance . . . . . . . . . . . . . . . . . . . . 12
Event logbook . . . . . . . . . . . . . . . . . . . . . . . . . 127 Input
Extended setup Cable specification. . . . . . . . . . . . . . . . . . . 155
Data management . . . . . . . . . . . . . . . . . . . . 69 Current input . . . . . . . . . . . . . . . . . . . . . . . 156
Diagnostics settings . . . . . . . . . . . . . . . . . . . 64 Digital input. . . . . . . . . . . . . . . . . . . . . . . . 156
EtherNet/IP . . . . . . . . . . . . . . . . . . . . . . . . . 67 Input signal . . . . . . . . . . . . . . . . . . . . . . . . 155
HART bus address . . . . . . . . . . . . . . . . . . . . 65 Input type . . . . . . . . . . . . . . . . . . . . . . . . . 155
PROFIBUS . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Measured variable. . . . . . . . . . . . . . . . . . . 155
Webserver. . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Measuring range . . . . . . . . . . . . . . . . . . . . 155
Extension modules . . . . . . . . . . . . . . . . . . . . . 150 Numbering . . . . . . . . . . . . . . . . . . . . . . . . . 10

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Inputs Mechanical construction

Binary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 Dimensions . . . . . . . . . . . . . . . . . . . . . 14, 170
Installation . . . . . . . . . . . . . . . . . . . . . . . . . 14–18 Material. . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . 14 Menu
Mounting plate. . . . . . . . . . . . . . . . . . . . . . . 15 Basic setup . . . . . . . . . . . . . . . . . . . . . . . . . 54
Post mounting . . . . . . . . . . . . . . . . . . . . . . . 16 Display/Operation. . . . . . . . . . . . . . . . . . . . 52
Railing mounting . . . . . . . . . . . . . . . . . . . . . 17 Modbus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Wall mounting . . . . . . . . . . . . . . . . . . . . . . . 18 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Weather protection cover . . . . . . . . . . . . . . 15 Quick wiring guide . . . . . . . . . . . . . . . . . . . 22
IT security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Modbus RS485 . . . . . . . . . . . . . . . . . . . . . . . . 81
Modbus TCP . . . . . . . . . . . . . . . . . . . . . . . . . . 81
K Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Keypad lock . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Mounting plate . . . . . . . . . . . . . . . . . . . . . . . . 15

L N
Laplace representation. . . . . . . . . . . . . . . . . . . 95 Nameplate. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Limit switch . . . . . . . . . . . . . . . . . . . . . . . . 76, 90 O
Linearization . . . . . . . . . . . . . . . . . . . . . . . . . 158 Occupational safety. . . . . . . . . . . . . . . . . . . . . . . 8
Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158 Onsite display . . . . . . . . . . . . . . . . . . . . . . . . 120
Locking operating keys . . . . . . . . . . . . . . . . . . 48 Opening the housing. . . . . . . . . . . . . . . . . . . . 23
Logbooks . . . . . . . . . . . . . . . . . . . . 60, 127–130 Operation
Configuration . . . . . . . . . . . . . . . . . . . . . . . 48
M Display and operating elements . . . . . . . . . 46
M12 socket. . . . . . . . . . . . . . . . . . . . . . . . . . . 153 Operating concept. . . . . . . . . . . . . . . . . . . . 47
Mains fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . 166 Via service interface . . . . . . . . . . . . . . . . . . 44
Manufacturer ID . . . . . . . . . . . . . . . . . . . . . . . 162 Via web server. . . . . . . . . . . . . . . . . . . . . . . 43
Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 Operational safety. . . . . . . . . . . . . . . . . . . . . . . . 8
Mathematical functions Output
Degassed conductivity . . . . . . . . . . . . . . . . 112 Current output . . . . . . . . . . . . . . . . . . . . . 160
Difference . . . . . . . . . . . . . . . . . . . . . . . . . . 110 Digital output . . . . . . . . . . . . . . . . . . . . . . 159
Dual conductivity . . . . . . . . . . . . . . . . . . . . 113 Linearization . . . . . . . . . . . . . . . . . . . . . . . 158
pH calculation. . . . . . . . . . . . . . . . . . . . . . . 114 Load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Redundancy . . . . . . . . . . . . . . . . . . . . . . . . 111 Numbering . . . . . . . . . . . . . . . . . . . . . . . . . 10
rH value . . . . . . . . . . . . . . . . . . . . . . . . . . . 112 Output signal. . . . . . . . . . . . . . . . . . . . . . . 157
MCERTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Protocol-specific data . . . . . . . . . . . . . . . . 162
Measured error Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Current inputs . . . . . . . . . . . . . . . . . . . . . . 167 Signal on alarm . . . . . . . . . . . . . . . . . . . . . 158
Current outputs . . . . . . . . . . . . . . . . . . . . . 167 Outputs
Sensor inputs . . . . . . . . . . . . . . . . . . . . . . . 167 Alarm relay . . . . . . . . . . . . . . . . . . . . . . . . . 76
Measured variable . . . . . . . . . . . . . . . . . . . . . 155 binary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Measuring cable . . . . . . . . . . . . . . . . . . . . . . . 145 Current outputs. . . . . . . . . . . . . . . . . . . . . . 73
Measuring device Relay (optional). . . . . . . . . . . . . . . . . . . . . . 76
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Measuring mode . . . . . . . . . . . . . . . . . . . . . . . 55
Measuring range . . . . . . . . . . . . . . . . . . . . . . 155
Measuring range switch. . . . . . . . . . . . . . . . . 115

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P Repeatability . . . . . . . . . . . . . . . . . . . . . . . . . 167
Pending diagnostic message . . . . . . . . . . . . . 127 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Performance characteristics Resolution
Measured error. . . . . . . . . . . . . . . . . . . . . . 167 Current inputs . . . . . . . . . . . . . . . . . . . . . . 167
Reference temperature. . . . . . . . . . . . . . . . 167 Current outputs . . . . . . . . . . . . . . . . . . . . . 167
Repeatability. . . . . . . . . . . . . . . . . . . . . . . . 167 Response time . . . . . . . . . . . . . . . . . . . . . . . . 167
Resolution. . . . . . . . . . . . . . . . . . . . . . . . . . 167
Response time . . . . . . . . . . . . . . . . . . . . . . 167 S
Pollution degree . . . . . . . . . . . . . . . . . . . . . . . 169 Safety instructions
Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Designated use . . . . . . . . . . . . . . . . . . . . . . . 7
Post mounting . . . . . . . . . . . . . . . . . . . . . . . . . 16 Occupational safety . . . . . . . . . . . . . . . . . . . . 8
Post mounting kit . . . . . . . . . . . . . . . . . . . . . . 145 Operational safety . . . . . . . . . . . . . . . . . . . . . 8
Power consumption . . . . . . . . . . . . . . . . . . . . 166 Product safety . . . . . . . . . . . . . . . . . . . . . . . . 8
Power supply. . . . . . . . . . . . . . . . . . . . . . . . . . 165 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . 13
Pressure compensation . . . . . . . . . . . . . . . . . 169 SD card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Process errors . . . . . . . . . . . . . . . . . . . . . . . . . 119 Security
Product identification . . . . . . . . . . . . . . . . . . . . 12 IT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Product safety . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Sensor information . . . . . . . . . . . . . . . . . . . . 135
PROFIBUS . . . . . . . . . . . . . . . . . . . . . . . . . 66, 80 Sensors
Device variables . . . . . . . . . . . . . . . . . . . . . . 80 Chlorine . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Conductivity, conductive . . . . . . . . . . . . . . 148
PROFIBUS variables . . . . . . . . . . . . . . . . . . . 81 Conductivity, inductive . . . . . . . . . . . . . . . 148
Quick wiring guide . . . . . . . . . . . . . . . . . . . . 21 Connection . . . . . . . . . . . . . . . . . . . . . . 30–32
Protective ground connection. . . . . . . . . . . . . . 24 Enamel pH electrodes . . . . . . . . . . . . . . . . 146
Protocol-specific data . . . . . . . . . . . . . . . . . . . 162 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . 150
ISE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
R Nitrate . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Railing mounting . . . . . . . . . . . . . . . . . . . . . . . 17 ORP sensors. . . . . . . . . . . . . . . . . . . . . . . . 147
Reference temperature. . . . . . . . . . . . . . . . . . 167 Oxygen. . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Relative humidity . . . . . . . . . . . . . . . . . . . . . . 168 pH glass electrodes . . . . . . . . . . . . . . . . . . 146
Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 pH-ISFET . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Cable cross-section . . . . . . . . . . . . . . . . . . . 162 SAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Turbidity . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Diagnostics message. . . . . . . . . . . . . . . . . . . 79 Serial number . . . . . . . . . . . . . . . . . . . . . . . . . 13
Limit switch . . . . . . . . . . . . . . . . . . . . . . . . . 76 Service interface
Switching capacity . . . . . . . . . . . . . . . . . . . 161 Connection . . . . . . . . . . . . . . . . . . . . . . . . . 44
Relay types . . . . . . . . . . . . . . . . . . . . . . . . . . . 161 Creating a connection . . . . . . . . . . . . . . . . . 44
Remote operation Setting the operating language. . . . . . . . . . . . 52
Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Setup
EtherNet/IP . . . . . . . . . . . . . . . . . . . . . . . . . 22 Export . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
HART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Modbus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Save . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
PROFIBUS . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Signal encoding . . . . . . . . . . . . . . . . . . . . . . . 157
Web server . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Slots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Soft keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Spare parts. . . . . . . . . . . . . . . . . . . . . . . . . . . 141

176
Liquiline CM442/CM444/CM448

State of the art . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Status display . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Storage temperature . . . . . . . . . . . . . . . . . . . 168
Supply voltage . . . . . . . . . . . . . . . . . . . . . . . . 165
CM442 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
CM444/CM448 . . . . . . . . . . . . . . . . . . . . . . 28
Switching on the unit . . . . . . . . . . . . . . . . . . . . 52
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
System information . . . . . . . . . . . . . . . . . . . . 133
System integration . . . . . . . . . . . . . . . . . . . . . . 42

T
Technical data . . . . . . . . . . . . . . . . . . . . . . . . 155
Environment. . . . . . . . . . . . . . . . . . . . . . . . 168
Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Mechanical construction . . . . . . . . . . . . . . 170
Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Performance characteristics. . . . . . . . . . . . 167
Terminal diagram. . . . . . . . . . . . . . . . . . . . . . . 11
Troubleshooting . . . . . . . . . . . . . . . . . . 119–127

U
Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

V
Vibration resistance . . . . . . . . . . . . . . . . . . . . 169

W
Wall mounting . . . . . . . . . . . . . . . . . . . . . . . . . 18
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Weather protection . . . . . . . . . . . . . . . . . . . . 145
Weather protection cover . . . . . . . . . . . . . . . . 15
Web browser . . . . . . . . . . . . . . . . . . . . . . . . . 120
Web server . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Connection . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Creating a connection . . . . . . . . . . . . . . . . . 42
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Quick wiring guide . . . . . . . . . . . . . . . . . . . . 22
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Endress+Hauser
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