BA01227C/07/EN/01.13
71220446

Products

Solutions

Services

Valid as of:Softwareversion 01.04.00

Operating Instructions
Liquiline
CM442R/CM444R/CM448R
Universal four-wire multichannel controller forcontrol cabinet installation
Maintenance & diagnostics

About this manualThis manual describes all the tasks you must perform for maintenance, diagnostics and repair.
A description of the following is provided here:• General troubleshooting• Overview of the diagnostic messages• Description of the information in the "Diagnostics" menu
– Diagnostics list
– Logbooks– System information– Sensor information– Systemtest/Reset• Maintenance• Spare parts and accessories
This manual does not include the following:
For a description of the following menus, refer to the listed manuals.
• Display/Operation--> Operating Instructions BA01225C "Commissioning"• Basic setup--> Operating Instructions BA01225C "Commissioning"• Setup/General settings--> Operating InstructionsBA00450C "Operation & settings"• Inputs--> Operating InstructionsBA00450C "Operation & settings"• Outputs--> Operating InstructionsBA00450C "Operation & settings"• Additional functions--> Operating InstructionsBA00450C "Operation & settings"• Calibration--> Operating Instructions BA00451C "Calibration"• Expert--> Internal Service ManualLiquiline CM442R/CM444R/CM448R

Table of contents
1

Diagnostics andtroubleshooting . . . . . . . . . . . . . 4

1.1
1.2

General troubleshooting . . . . . . . . . . . . . . 4
Diagnostic information on onsite display(optional) . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.3 Diagnostic information via web browser 13
1.4 Diagnostic information via fieldbus . . . 13
1.5 Adjusting diagnostic information . . . . . 13
1.6 Overview of diagnostic information . . . 16
1.7 Pending diagnostic messages . . . . . . . . . 32
1.8 Diagnostics list . . . . . . . . . . . . . . . . . . . . . 32
1.9 Event logbook . . . . . . . . . . . . . . . . . . . . . . 33
1.10 Simulation . . . . . . . . . . . . . . . . . . . . . . . . 36
1.11 Reset measuring instrument . . . . . . . . . 37
1.12 Device information . . . . . . . . . . . . . . . . . 38
1.13 Firmware history . . . . . . . . . . . . . . . . . . . 39

2

Maintenance . . . . . . . . . . . . . . . 40

2.1
2.2

Calibration . . . . . . . . . . . . . . . . . . . . . . . . 40
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . 40

3

Repair. . . . . . . . . . . . . . . . . . . . . 42

3.1
3.2
3.3

Spare parts . . . . . . . . . . . . . . . . . . . . . . . . 42
Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

4

Accessories . . . . . . . . . . . . . . . . 46

4.1
4.2
4.3
4.4
4.5

Measuring cable . . . . . . . . . . . . . . . . . . . . 46
Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Additional functionality . . . . . . . . . . . . . 51
Software . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Other accessories . . . . . . . . . . . . . . . . . . . 53

Index. . . . . . . . . . . . . . . . . . . . . . 54

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Diagnostics and troubleshooting

1

Liquiline CM442R/CM444R/CM448R

Diagnostics and troubleshooting

The color of the display background changes to red if a diagnostics message for error category"F" occurs.

1.1

General troubleshooting

1.1.1 Troubleshooting
A diagnostic message appears on the displayor via the fieldbus indicating that the 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 16) 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 otherproblems, search for the faults under "Process errors without messages" (→ ä 4) or"Device-specific errors" (→ ä 12).
 Follow the recommended measures.
4. Contact the Service Department if you cannot rectify the error yourself. Only cite the error
number.
1.1.2 Process errors without messages
pH/ORP measurement
ProblemPossible cause

Tests and/or remedial measures

Display deviates fromreference measurement

Incorrect calibration

Repeat the calibration.
Where necessary, check and repeat the calibration
with the reference device.

Sensor fouled

Clean the sensor.

Temperature measurement

Check the temperature measured values of bothdevices.

Temperature compensation

Check the settings for temperature compensation
and adjustment for both devices.

Contaminated reference system

Test with new sensor

Junction clogged

Clean or grind junction

Measuring chain
zero-point cannot be
adjusted

Asymmetric sensor voltage too high Clean junction or test with another sensor

4

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Diagnostics and troubleshooting

ProblemPossible cause

Tests and/or remedial measures

No change or subtle
change in display– Sensor fouled– Sensor old– Sensor defective (reference lead)

Clean the sensor.

Reference has low level of KCl

Check KCl supply: 0.8 bar (12 psi) over medium
pressure

Measuring chain slope:– Cannot be adjusted– To low– No slope

Device input defective

Check device directly.

– Sensor old– Hair-line crack in the glass
membrane

Renew sensor.

Constant, incorrect
measured value

Sensor does not immerse properlyor protection cap not removed

Check installation position, remove protection cap.

Air pockets in assembly

Check assembly and orientation.

Ground fault at or in device

Perform test measurement in isolated vessel, withbuffer solution if applicable.

Hair-line crack in the glass
membrane

Renew sensor.

Device in impermissible operating
condition (does not respond when
key pressed)

Switch off device and switch it on again.

Sensor defective

Replace sensor

Interference on signal output cable

Check cable routing, route cable separately ifnecessary.

Interference potential in medium

Eliminate source of interference or ground medium
as close as possible to sensor.

Cable disconnected or
short-circuited

Disconnect cable and measure directly at device.

Output defective

See "Device-specific errors" section.

Fixed current output
signalCurrent simulation active

Switch off simulation.

Incorrect current output
signalTotal load in current loop too highMeasure the load and reduce it to the permitted
value if necessary (--> Technical data, Operating
Instructions "Commissioning").

EMC (interference coupling)

Check wiring. Identify and eliminate cause ofinterference.

Incorrect temperature
value

Fluctuations in measuredvalue

No current output signal

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5Diagnostics and troubleshooting

Liquiline CM442R/CM444R/CM448R

Conductivity measurement
ProblemPossible cause

Tests and/or remedial measures

Display deviates fromreference measurement

Incorrect calibration

Repeat the calibration.
Where necessary, check and repeat the calibration
with the reference device.

Sensor fouled

Clean the sensor.

Temperature measurement

Check the temperature measured values of bothdevices.

Temperature compensation

Check the settings for temperature compensation
and adjustment for both devices.

Polarization fields

Use suitable sensor:• Larger cell constant• Graphite instead of stainless steel (observe
material resistance properties)

Short-circuit/moisture in sensor

Check sensor.

Short-circuit in cable or socket

Check cable and socket.

Disconnection in sensor

Check sensor.

Disconnection in cable or socket

Check cable and socket.

Incorrect cell constant setting

Check cell constant.

Incorrect output assignment

Check assignment of measured value to current
signal.

Air pockets in assembly

Check assembly and orientation.

Ground fault at or in device

Measure in isolated vessel.

Device in impermissible operating
condition (does not respond when
key pressed)

Switch off device and switch it on again.

Sensor defective

Replace sensor

Display deviates fromreference measurement

Implausible measured
values:– Measured value
constantly 000– Measured value too low– Measured value too
high– Measured value frozen– Current output value
not as expected

Incorrect temperature
value

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ProblemDiagnostics and troubleshooting

Possible cause

Tests and/or remedial measures

No/incorrect temperaturecompensation

ATC: select type of compensation; if linear, set
suitable coefficients.
MTC: set process temperature.

Incorrect temperature measurement Check temperature measured value.
Bubbles in medium

Suppress formation of bubbles by:– Gas bubble trap
– Creating counterpressure (orifice plate)– Measurement in bypass

Flow rate too high (can lead tobubble formation)

Reduce flow rate or select less turbulent mounting
location.

Voltage potential in medium (onlyfor conductive)

Ground medium close to sensor.

Sensor fouling or buildup on sensor

Clean sensor (see "Cleaning the conductivity sensors"section).

Interference on signal output cable

Check cable routing, route cable separately ifnecessary.

Interference potential in medium

Eliminate source of interference or ground medium
as close as possible to sensor.

Measured value in processincorrect

Fluctuations in measured
valueInterference on measuring cable

Connect cable shield as per wiring diagram.

Cable disconnected or
short-circuited

Disconnect cable and measure directly at device.

Output defective

See "Device-specific errors" section.

Fixed current output
signalCurrent simulation active

Switch off simulation.

Incorrect current output
signalTotal load in current loop too highMeasure the load and reduce it to the permitted
value if necessary (--> Technical data, Operating
Instructions "Commissioning").

EMC (interference coupling)

Check wiring. Identify and eliminate cause ofinterference.

No current output signal

Oxygen measurement
Problem

Display value - - - -Endress+Hauser

Possible cause

Tests and/or remedial measures

Sensor defective

Test with new sensor

Sensor cable disconnected

Check cable or cable extension.

Incorrect sensor connection

Check the connection at the input module (--> BA"Commissioning", "Wiring" section).

Electronics module defective

Replace the module.

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Diagnostics and troubleshooting

Liquiline CM442R/CM444R/CM448R

ProblemPossible cause

Tests and/or remedial measures

No change or subtle
change in display– Sensor fouled– Sensor old (membrane)• Clean the sensor.
• If necessary:– Change electrolyte, change membrane cap(amperometric sensor)– Change fluorescence cap (optical sensor)

Constant, incorrect
measured value

Device in impermissible operating
condition (does not respond when
key pressed)

Switch off device and switch it on again.

Membrane fouled

Clean or replace cap

Electrolyte exhausted orcontaminatedChange electrolyte

Measured value too low

Measured value too highAnode coating worn

Repolarize sensor

Black anode coating

Regenerate sensor in factory

Air pocket under membrane

Clean sensor, optimize installation where necessary

Polarization not complete

Wait until polarization time elapses (--> Technicaldata in sensor operating manual)

Incorrect temperature measurement Check/correct value.
Implausible measured
value

Incorrect altitude setting
Incorrect air pressure

Incorrect temperature
value

Fluctuations in measuredvalue

No current output signal

Incorrect sensor connection

Incorrect calibration
Reset and repeat calibration.
Check the connection at the input module (--> BA"Commissioning", "Wiring" section).

Temperature sensor defective

Replace sensor

Interference on signal output cable

Check cable routing, route cable separately ifnecessary.

Interference potential in medium

Eliminate source of interference or ground medium
as close as possible to sensor.

Cable disconnected or
short-circuited

Disconnect cable and measure directly at device.

Output defective

See "Device-specific errors" section.

Fixed current output
signalCurrent simulation active

Switch off simulation.

Incorrect current output
signalTotal load in current loop too highMeasure the load and reduce it to the permitted
value if necessary.

EMC (interference coupling)

Disconnect both output cables and measure directly
at device.

8

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Liquiline CM442R/CM444R/CM448R

Diagnostics and troubleshooting

Chlorine measurement
ProblemPossible cause

Tests and/or remedial measures

Sensor defective

Test with new sensor

Sensor cable disconnected

Check cable or cable extension.

Incorrect sensor connection

Check the connection at the input module (--> BA"Commissioning", "Wiring" section).

Electronics module defective

Replace the module.

Sensor was in chlorine-free water orin air.

Short conditioning over (not in!) chlorine bleach,wait for adjustment time in water to elapse before
calibration.

Values do not match the
Measurement is performed without
DPD control measurement pH compensation while DPD
measurement is always buffered topH 6.3.

Measure the chlorine value with pH compensation

DPD measured value far
too high

Organic chlorination agents(possibly also only used temporarily
or for shock chlorination). In thisinstance, no correlation between
actual free available chlorine, DPD
measurement and amperometricmeasurement. DPD value up to 5
times too high.

Use free (gaseous) chlorine or chlorine frominorganic chlorine compounds.

Membrane defective

Replace membrane cap

Polarization not complete

Wait for the polarization time to elapse

Alien oxidizing agents

Analyze medium

Shunt in chlorine sensor

Replace sensor

Measuring chamber not closed

Refill and screw closed carefully

Air bubble outside in front of
membraneRemove air bubble, select a better installation
position if possible.

Air bubble inside membrane

Refill and screw closed so that it is air-free

Sensor fouled

Clean sensor

Sensor old

Replace sensor

Display value - - - -Slope too low

Chlorine value too highChlorine value too low

No change or subtle
change in display

Constant, incorrect
measured value

No current output signal

Endress+Hauser

Sensor defective (ref. lead)Replace sensor

Sensor does not immerse properlyor protection cap not removed

Check installation position, remove protection cap

Air pockets in assembly

Check assembly and orientation

Cable disconnected or
short-circuited

Disconnect cable and measure directly at device.

Output defective

See "Device-specific errors" section.

9

Diagnostics and troubleshooting

Liquiline CM442R/CM444R/CM448R

ProblemPossible cause

Tests and/or remedial measures

Fixed current output
signalCurrent simulation active

Switch off simulation.

Incorrect current output
signalTotal load in current loop too highMeasure the load and reduce it to the permitted
value if necessary (--> Technical data, Operating
Instructions "Commissioning").

EMC (interference coupling)

Check wiring. Identify and eliminate cause ofinterference.

Measurement with ion-selective sensors
ProblemPossible cause

Tests and/or remedial measures

Temperature value always
20 ˚C or incorrect– Temperature sensor notconnected or connected
incorrectly– Temperature sensor defective– Cable to temperature sensor
defective– Check temperature sensor and replace where
necessary– Replace the cable

Display values deviate
from reference
measurement

Incorrect calibration

Repeat the calibration.
Where necessary, check and repeat the calibration
with the reference device.

Electrode connected to the wrong
slot

Compare terminal assignment to setting ontransmitter

Electrodes fouled

Clean the electrodes.

Incorrect temperature measurement Check the temperature measured values of bothdevices.

No change or subtle
change in display

Measured value drift

Constant, incorrect
measured value

Temperature compensation

Check the settings for temperature compensation
and adjustment for both devices.

pH compensation (only forammonium), pH measurement

Check the settings and the pH measurement if
necessary.

– Electrodes fouled– Electrodes too old– Electrodes defective– Clean the electrodes– Replace membrane cap and electrolyte– Replace the electrodes

Reference of pH electrode defective

Replace the pH electrodeContamination of referenceelectrode or ion-selective electrodes

Application problem

Sensor does not immerse properlyor protection cap of the pH electrodenot removed

Check installation position, remove protection cap.

Air bubble in the electrode between Tap the electrolyte in the electrode towards themembrane and inner terminal leads membrane
Membrane cap or electrodedefective

10

Replace the membrane cap or electrode.

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Liquiline CM442R/CM444R/CM448R

Diagnostics and troubleshooting

ProblemPossible cause

Tests and/or remedial measures

Measuring chain
zero-point not stable andcannot be adjusted

Sensor does not immerse properlyor protection cap of the pH electrodenot removed

Check installation position, remove protection cap.

Air bubble in the electrode between Tap the electrolyte in the electrode towards themembrane and inner terminal leads membrane
Membrane cap or electrodedefective

Replace the membrane cap or electrode.

Electrodes contaminatedTest with new electrodes

Reference of pH electrode used

Replace the pH electrode

Electrode connected to the wrong
slot

Compare terminal assignment to setting ontransmitterAir bubbles in the electrodes

Tap the electrolyte in the electrode towards themembraneInterference on signal output cable

Check cable routing, route cable separately ifnecessary.

Interference potential in medium

Eliminate source of interference or ground medium
as close as possible to sensor.

Cable disconnected or
short-circuited

Disconnect cable and measure directly at device.

Output defective

See "Device-specific errors" section.

Fixed current output
signalCurrent simulation active

Switch off simulation.

Incorrect current output
signalTotal load in current loop too highMeasure the load and reduce it to the permitted
value if necessary (--> Technical data, Part 1).

Display fluctuates greatly

Fluctuations in measuredvalue

No current output signal

Turbidity, SAC and nitrate measurement
ProblemPossible cause

Tests and/or remedial measures

Sensor defective

Test with new sensor

Sensor cable disconnected

Check cable or cable extension.

Incorrect sensor connection

Check the connection at the input module (--> BA"Commissioning", "Wiring" section).

Electronics module defective

Replace the module.

No change or subtle
change in display

Sensor fouled

Clean the sensor.

Constant, incorrect
measured value

Device in impermissible operating
condition (does not respond when
key pressed)

Switch off device and switch it on again.

Display value - - - -Endress+Hauser

11Diagnostics and troubleshooting

Problem

Liquiline CM442R/CM444R/CM448R

Possible cause

Tests and/or remedial measures

Sensor not calibrated or incorrectly
calibrated

Calibration with original sample might be necessary
for concentration or solids content.

Sensor fouled

Clean sensor

Sensor installed in "dead zone" or air
pocket in assembly or flange

Check installation position, move sensor to area thatreceives good flow. Pay attention when mounting inhorizontal pipes

Incorrect sensor orientation

Align sensor:• Normal media:
Direct flow to measuring window• For high solids content:
Align measuring window at angle of 90˚ to flow

Incorrect sensor connection

Check the connection at the input module (--> BA"Commissioning", "Wiring" section).

Temperature sensor defective

Replace sensor

Interference on signal output cable

Check cable routing, route cable separately ifnecessary.

Irregular flow / turbulence / airbubbles / large solid particles

Select a better mounting location or reduceturbulence, use a large measured value damping
factor if necessary
Set gas bubble threshold to 100 %Cable disconnected or
short-circuited

Disconnect cable and measure directly at device.

Output defective

See "Device-specific errors" section.

Fixed current output
signalCurrent simulation active

Switch off simulation.

Incorrect current output
signalTotal load in current loop too highMeasure the load and reduce it to the permitted
value if necessary.

EMC (interference coupling)

Disconnect both output cables and measure directly
at device.

Air bubbles

Do not mount sensor above aeration discs

Implausible measured
value

Incorrect temperature
value

Fluctuations in measuredvalue

No current output signal

Value switches to zero andback to measured value

1.1.3 Device-specific errors
ProblemPossible cause

Tests and/or remedial measures

Dark display(only with optional
display)

No supply voltage

Check if supply voltage applied.

Display connector incorrectly
connected

Check. Must be inserted into RJ45 socket on basic
module.

Basic module defective

Replace basic module

12

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Liquiline CM442R/CM444R/CM448R

Diagnostics and troubleshooting

ProblemPossible cause

Tests and/or remedial measures

Values appear on display
but:– Display does notchange and / or
– Device cannot be
operated

Module not wired correctly

Check modules and wiring.

Impermissible operating system
condition

Switch off device and switch it on again.

Implausible measured
values

Inputs defectiveFirst perform tests and take measures as outlined in"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
current value

Incorrect adjustment
Load too large

Check with integrated current simulation, connect
mA meter directly to current output.

Shunt / short to ground in current
loop
No current output signal

1.2

Basic module defective

Check with integrated current simulation, connect
mA meter directly to current output.

Diagnostic information on onsite display (optional)

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

1.3

Diagnostic information via web browser

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

1.4

Diagnostic information via fieldbus

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

1.5

Adjusting diagnostic information

1.5.1 Classification of diagnostics messages
More detailed information on the current diagnostics messages displayed is provided in the
DIAG/Diagnostics list menu.

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13

Diagnostics and troubleshooting

Liquiline CM442R/CM444R/CM448R

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– M = (Maintenance required) Action should be taken as soon as possible– 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.
1.5.2 Adjusting diagnostic behavior
All the diagnostics messages are assigned to specific error categories at the factory. Since othersettings 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.
ExampleThe 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").

Possible 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.

14

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Liquiline CM442R/CM444R/CM448R

Path:

Diagnostics and troubleshooting... /Extended setup/Diagnostics settings/Diag. behavior

Function

Options

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• On• Off

Error current

Info

You can deactivate or reactivate a diagnostics message
here.

Factory setting
Depends on the message

Deactivating means:• No error message in the measuring mode
• No error current at the current output

Options• On• Off

Decide whether an error current should be output at thecurrent output if the diagnostic message display isactivated.

Factory setting
Depends on the message
Status signal

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

Factory setting
Depends on the message
Diag. output

Options• NoneFactory setting
None

Cleaning program

Options• None• Cleaning 1• Cleaning 2• Cleaning 3• Cleaning 4

Before you can assign the message to an output, youmust first configure a relay output to "Diagnostics"(Menu/Setup/Outputs, assign the "Diagnostics" function
and set the Operating mode to "as assigned").
Decide whether the diagnostic message should trigger acleaning program.
You can define the cleaning programs under:
Menu/Setup/Additional functions/Cleaning.

Factory setting
None
Detail information

Endress+Hauser

Read only

Here you can find more information on the diagnostic
message and instructions on how to resolve theproblem.

15

Diagnostics and troubleshooting

1.6

Liquiline CM442R/CM444R/CM448R

Overview of diagnostic information

1.6.1 Device-specific, general diagnostics messages
No.

Message

Factory settings

Tests or remedial measures

Cat.

Diag.
on/offError
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

242

Software incomp.

F

On

On

243

Device error

F

On

On

Internal device error
1. Update the software
2. Contact the Service Department
3. Replace the backplane (Service)261

Electr. module

F

On

On

Electronics module defective
1. Replace the module
2. Contact the Service Department

263

Electr. module

F

On

On

Wrong kind of electronics module
1. Replace the module
2. Contact the Service Department284

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
firmware4. 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 isinterrupted.
--> Contact the Service Department (battery
replacement)

304

Module data

F

On

On

At least 1 module has incorrect configurationdata
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

373

Electr. temp.

M

On

Off

High electronics temperature--> Check ambient temperature and energy
consumption

16

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Liquiline CM442R/CM444R/CM448R

No.

Message

Diagnostics and troubleshooting

Factory settings

Tests or remedial measures

Cat.

Diag.
on/offError
current

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

461

Current exceeded

S

On

Off

Reasons• Sensor in air• Air pockets in assembly• Sensor fouled• Incorrect flow to sensor
Measures
1. Check sensor installation
2. Clean 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 Department502

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.

531

Logbook full

M

On

Off

2.
3.

532

License error

M

On

Off

--> Contact the Service Department

540

Parameter save

M

On

Off

Configuration saving has failed, --> repeat541

Parameter load

M

On

Off

Configuration successfully loaded

542

Parameter load

M

On

Off

Configuration loading has failed, --> repeat543

Parameter load

M

On

Off

Configuration loading aborted

544

Parameter reset

M

On

Off

Factory default successful

910

Limit switch

S

On

Off

Limit switch activatedEndress+Hauser

Save the logbook to the SD card and thendelete the logbook in the device
Set memory to ring memory
Deactivate logbook

17

Diagnostics and troubleshooting

No.

921

Message

Pump bracket

Liquiline CM442R/CM444R/CM448R

Factory settings

Tests or remedial measures

Cat.

Diag.
on/offError
current

F

On

On

The pump bracket is detected as open.
• Pump bracket open
• Reed contact defective-> Close the pump bracket-> Contact the Service Department

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 toinvalid.

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 anormal load is present.

971

Input low

S

On

On

Current input too low
At 4 to 20 mA, the input current is less than thelower 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 reset976

PFM value high

S

On

Off

977

PFM value low

S

On

Off

Pulse frequency modulation: output signal
exceeded/undershot. Measured value outside thespecified range.
Reasons: sensor in air, air pockets in assembly,
incorrect flow to sensor, sensor fouled
1. Clean sensor
2. Check plausibility
3. Adjust the PFM configuration.

990

Deviation limit

F

On

On

Redundancy: limit value of percentage deviation
exceeded991

CO2 conc. range

F

On

On

CO2 concentration (degassed conductivity)
outside the measuring range992

pH calc range

F

On

On

pH calculation outside the measuring range993

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

18

Endress+Hauser

Liquiline CM442R/CM444R/CM448R

Diagnostics and troubleshooting

1.6.2 Sensor-specific diagnostics messages
Abbreviations used for sensor types• P ... pH/ORP (general)– P (glass) ... glass electrode– P (ISFET) ... ISFET sensor• C ... Conductivity (general)– C (cond.) ... Conductive sensor– C (ind.) ... Inductive sensor• O ... Oxygen (general)– O (opt.) ... Optical sensor– O (amp.) ... Amperometric sensor• N ... Nitrate• T ... Turbidity and solids• S ... SAC• U ... Interface• I ... ISE• Cl ... ChlorineNo.

Message

Factory settings
Cat.

Diag. Error
current

Sensor type Tests or remedial measures

002

Sensor unknown

F

On

On

All

004

Sensor problem

F

On

On

All

005

Sensor data

F

On

On

All

Sensor data invalid
1. Check the firmware compatibility for thesensor and transmitter, load suitable
firmware if necessary
2. Reset the sensor to factory setting,disconnect the sensor and reconnect it
3. Update the transmitter date
4. Replace sensor

010

Sensor scanning

F

Off

On

All

Wait for initialization to be finished012

Writing data

F

On

On

All

Could not write sensor data
1. Repeat write process
2. Replace sensor

013

Sensor type

F

On

On

All

Replace sensor, making sure correct sensor
type is used018

Sensor not ready

F

On

On

All

Sensor communication blocked
1. Sensor fails tag check. Replace.
2. Internal software error. Contact Service
Department022

Temp. sensor

F

On

On

P, C, O, I, Cl

Temperature sensor defective
Replace sensor

Endress+Hauser

Replace sensor

19

Diagnostics and troubleshootingNo.

Message

Liquiline CM442R/CM444R/CM448R

Factory settings
Cat.

Diag. Error
current

Sensor type Tests or remedial measures

061

Sensor electr.

F

On

On

All

Sensor electronics defective
Replace sensor

062

Sensor connect.

F

On

On

All

1.
2.

081

Initialization

F

On

On

All

Wait for initialization to be finished100

Sensor comm.

F

On

On

All

Sensor not communicating
1. Check sensor connection
2. Check sensor plug
3. Contact the Service Department

101

Sensor incompat.

F

On

On

All

1.
2.
3.

102

Calib. Timer

M

On

Off

All

Calibration interval elapsed. Measurement
can still take place.
Calibrate sensor

103

Calib. timer

M

On

Off

All

Calibration interval will elapse soon.
Measurement can still take place.
Calibrate sensor

104

Calib. validity

M

On

Off

All

Validity of last calibration expired.
Measurement can still take place.
Calibrate sensor

105

Calib. validity

M

On

Off

All

Validity of last calibration will expire soon.
Measurement can still take place.
Calibrate sensor

106

Sensor TAG

F

On

On

All

Sensor has invalid tag or tag group
1. Replace sensor
2. Use new sensor with identical design
3. Deactivate tag check

107

Calib. active

C

On

Off

P, C, O, I, Cl

Wait for calibration to be finished

108

Sterilization

M

On

Off

P, C, OSpecified number of sterilizations will soon bereached. Measurement can still take place.
Replace sensor

109

Sterilizat. cap

M

On

Off

O (amp.)Specified number of sterilizations for the cap
is reached. Measurement can still take place.
Replace membrane cap

110

Channel init.

F

On

On

All

Initialization of channel failed, operation is
not possible--> Contact the Service Department

20

Check sensor connection
Contact the Service Department

Update the sensor firmware
Replace sensor
Contact the Service Department

Endress+Hauser

Liquiline CM442R/CM444R/CM448R

No.

Message

Diagnostics and troubleshooting

Factory settings
Cat.

Diag. Error
current

Sensor type Tests or remedial measures

114

Temp.offset high

M

On

Off

115

Temp. offset low

M

On

Off

116

Temp. slope high

M

On

Off

117

Temp. slope low

M

On

Off

All except U Calibration alarm: Limit values fortemperature slope exceeded
All except U Sensor old or defective
1. Repeat calibration
2. Replace sensor

118

Sensor glass

F

On

On

P (glass)

119

Sensor check

M

On

Off

P (glass)

120

Sensor reference

F

On

On

P (glass)

121

Sensor reference

M

On

Off

P (glass)

122

Sensor glass

F

On

On

P (glass)

123

Sensor glass

M

On

On

P (glass)

124

Sensor glass

M

On

Off

P (glass)

125

Sensor glass

F

On

On

P (glass)

126

Sensor check

M

On

Off

P (glass)

Sensor condition check (SCC), poor sensor
condition
Glass membrane fouled or dry, junction
blocked
1. Clean sensor, regenerate
2. Replace sensor

127

Sensor check

M

On

Off

P (glass)

Sensor condition check (SCC), adequate
sensor condition

128

Sensor leakage

F

On

On

P (ISFET),O (amp.)

ISFET leak current alarm
Defective due to gate abrasion or damage
Replace sensor

Endress+Hauser

All except U Calibration alarm: Limit values fortemperature offset exceeded
All except U 1. Check temperature sensor
2. Replace sensor

Glass breakage warning, impedance of pH
glass too low
Measuring can continue until the alarm (118)
occurs.
1. Inspect sensor for hair-line cracks andbreakage
2. Check medium temperature
3. Replace sensor
Reference warning, impedance of reference
too low
Measuring can continue until the alarm (120)
occurs1. Check reference forclogging/contamination
2. Clean reference/junction
3. Replace sensor
Impedance limit values exceeded/undershot
Measuring can continue until the alarm (122,124) occurs.
1. Inspect sensor for hair-line cracks andbreakage
2. Check limit values and change where
necessary
3. Replace sensor

21

Diagnostics and troubleshootingNo.

Message

Liquiline CM442R/CM444R/CM448R

Factory settings
Cat.

Diag. Error
current

Sensor type Tests or remedial measures

129

Sensor leakage

F

On

Off

P (ISFET),O (amp.)

ISFET leak current warning
Measuring can continue until the alarm
occurs130

Sensor supply

F

On

On

P, O, I, Cl

Poor sensor power supply
1. Check sensor connection
2. Replace sensor

131

Sensor calib.

M

On

Off

O (opt.)132

Sensor calib.

M

On

Off

O (opt.)Limit values for sensor relaxation time
(fluorescence decay time)exceeded/undershot
Reasons: high oxygen content, incorrect
calibration
1. Repeat calibration
2. Replace sensor cap
3. Replace sensor

133

Sensor signal

F

On

On

O (opt.)No signal (fluorescence decay)
1. Replace sensor cap
2. Contact the Service Department

134

Sensor signal

M

On

Off

O (opt.)Low signal amplitude. Measurement can stilltake place.
1. Replace sensor cap
2. Contact the Service Department

135

Sensor temp.

S

On

On

O

136

Sensor temp.

S

On

On

O

Temperature outside specification
1. Check process
2. Check installation

137

Sensor LED

F

On

On

O (opt.)Sensor LED: no voltage
Contact the Service Department

138

Sensor LED

F

On

On

O (opt.)Sensor LED: no power
Contact the Service Department

140

Sensor check

F

On

On

O

Sensor range errors
Contact the Service Department

141

Polarization

F

On

On

C (cond.)Polarization warning
The measured value is distorted at highconductivity levels.
Use a sensor with a larger cell constant142

Sensor signal

F

On

On

C

No conductivity displayed
Reasons: sensor in air, sensor defective
1. Check installation
2. Replace sensor

143

Sensor check

F

On

Off

C

Sensor self-test error
1. Replace sensor
2. Contact the Service Department

144

Cond. out of rng

S

Off

On

C

Conductivity outside the measuring range
Use a sensor with a suitable cell constant22

Endress+Hauser

Liquiline CM442R/CM444R/CM448R

No.

Message

Diagnostics and troubleshooting

Factory settings
Cat.

Diag. Error
current

Sensor type Tests or remedial measures

146

Sensor temp.

S

Off

Off

C, N, T, S

Temperature outside specification
1. Check temperature
2. Check measuring chain
3. Replace sensor type

147

Sensor check

F

On

On

C (ind.)Coil transmission current too highReasons: transmission coil short-circuit,inductance too low
1. Replace sensor
2. Contact the Service Department

148

Sensor check

F

On

On

C (ind.)Coil transmission current too low
Reasons: transmission coil interrupted,
inductance too high
1. Replace sensor
2. Contact the Service Department

149

Sensor LED

F

On

On

T

Sensor LED error
1. Replace sensor
2. Contact the Service Department

151

Sensor buildup

F

On

On

T

Coating, high amount of fouling
1. Clean sensor
2. Replace sensor
3. Contact the Service Department

152

Sensor data

M

Off

Off

C (ind.)No calibration data
Perform air set calibration

153

Sensor failure

F

On

On

N, T, S

Sensor strobe lamp defective
Reasons: deterioration, end of operating life,mechanical interference/vibration
1. Replace sensor
2. Contact the Service Department

154

Sensor data

M

Off

Off

C

Factory calibration is used
Perform calibration

155

Sensor failure

F

On

On

N, T, S

Sensor defective
Error with analog evaluation
1. Replace sensor
2. Contact the Service Department

156

organ. pollution

M

On

On

N, T, S

Excessive organic fouling
Reasons: sensor fouling, high organic content,
incorrect orientation
1. Clean sensor
2. Install automatic cleaning
3. Check application

157

Filter change

M

On

Off

N, S

Optical filter must be replaced
Reasons: long period of operation, moisture insensor
1. Replace sensor
2. Contact the Service Department

Endress+Hauser

23

Diagnostics and troubleshootingNo.

Message

Liquiline CM442R/CM444R/CM448R

Factory settings
Cat.

Diag. Error
current

Sensor type Tests or remedial measures

158

Sensor check

F

On

On

N, T, S

Invalid measured value
1. Check sensor power supply
2. Restart device
3. Contact the Service Department

159

Sensor check

F

On

On

N, T, S

Uncertain measured value
Reasons: sensor fouling, incorrect application
1. Clean sensor
2. Check application

160

Sensor data

F

On

On

N, T, S, Cl

No calibration data
Reasons: data deleted
1. Select other data record
2. Use factory calibration
3. Contact the Service Department

161

Filter change

F

On

Off

N, T, S

Filter change necessary
Reasons: long period of operation, moisture insensor
1. Replace sensor
2. Contact the Service Department

162

Install.factor

M

On

Off

C (ind.)163

Install.factor

M

On

Off

C (ind.)Installation factor exceeded/undershot, alarm
Reason: distance between wall and sensor too
small (< 15 mm)
1. Check pipe diameter
2. Clean sensor
3. Calibrate sensor

164

Sensor data

M

Off

Off

C

No temperature calibration data
Factory calibration is used
1. Check process
2. Check sensor, replace if necessary

168

Polarization

S

On

Off

C (cond.)Polarization warning
The measured value is distorted at highconductivity levels.
Use a sensor with a larger cell constant

169 - 170:
Warning issued by hours of operation monitoring system. Measurement can still take place.
1. Replace sensor
2. Adjust monitoring limit
3. ÜDeactivate monitoring
169

Operating time

M

On

Off

S

Operating hours, conc. > 200 mg/l

170

Operating time

M

On

Off

S

Operating hours, conc. < 50 mg/l

171

Lamp change

M

On

Off

N, T, S

Need to change lamp
1. Replace sensor
2. Contact the Service Department

172

Echo lost

F

On

On

U

Echo signal lost24

Endress+Hauser

Liquiline CM442R/CM444R/CM448R

No.

Message

Diagnostics and troubleshooting

Factory settings
Cat.

Diag. Error
current

Sensor type Tests or remedial measures

173

Sludge level

F

On

On

U

Incorrect interface measurement
Replace sensor

174

Turbid. failure

F

On

On

U

Incorrect turbidity measurement.
Replace sensor

175

Wiper failure

F

On

On

U

Wiper not working. Clean or replace sensor.

176 - 199:
Warning issued by hours of operation monitoring system. Measurement can still take place.
1. Replace sensor
2. Adjust monitoring limit
3. ÜDeactivate monitoring
176

Operating time

M

On

Off

Cl

Operating hours > 100 nA

177

Operating time

M

On

Off

Cl

Operating hours > 20 nA

178

Operating time

M

On

Off

Cl

Operating hours > 15 ˚C

179Operating time

M

On

Off

P

Operating hours > 300 mV

180

Operating time

M

On

Off

P

Operating hours < -300 mV

181

Operating time

M

On

Off

O (opt.)Operating hours < 25 μS

182

Operating time

M

On

Off

O (opt.)Operating hours > 40 μS

183

Operating time

M

On

Off

O (amp.)Operating hours > 10 nA (COS51D)

184

Operating time

M

On

Off

O (amp.)Operating hours > 30 nA (COS22D)

185

Operating time

M

On

Off

O (amp.)Operating hours > 40 nA (COS51D)

186

Operating time

M

On

Off

O (amp.)Operating hours > 160 nA (COS22D)

187

Operating time

M

On

Off

C

Operating hours > 80 ˚C, 100 nS/cm

188

Operating time

M

On

Off

C, O

Operating hours < 5 ˚C

189

Operating time

M

On

Off

O

Operating hours > 5 ˚C

190Operating time

M

On

Off

O

Operating hours > 25 ˚C

191

Operating time

M

On

Off

O, I, Cl

Operating hours > 30 ˚C

192

Operating time

M

On

Off

O, I

Operating hours > 40 ˚C

193

Operating time

M

On

Off

P, C, OOperating hours > 80 ˚C

194Operating time

M

On

Off

P

Operating hours > 100 ˚C

195

Operating time

M

On

Off

C

Operating hours > 120 ˚C

196Operating time

M

On

Off

C

Operating hours > 125 ˚C

197

Operating time

M

On

Off

C

Operating hours > 140 ˚CEndress+Hauser

25

Diagnostics and troubleshootingNo.

Message

Liquiline CM442R/CM444R/CM448R

Factory settings
Cat.

Diag. Error
current

Sensor type Tests or remedial measures

198

Operating time

M

On

Off

C

Operating hours > 150 ˚C

199Operating time

M

On

Off

All except U Total operating hours

215

Simul. active

C

On

Off

All

Simulation active
End simulation by changing to measuring
mode

408

Calib. aborted

M

Off

Off

P, C, O, I, Cl

Calibration aborted

500

Sensor calib.

M

On

Off

All

Calibration aborted, main measured value
fluctuates
Reasons: sensor too old, sensor occasionallydry, calibration value not constant
1. Check sensor
2. Check calibration solution

501

Sensor calib.

M

On

Off

All except U Calibration aborted, temperature measured
value fluctuates
Reasons: Sensor too old, sensor occasionallydry, temperature of calibration solution notconstant
1. Check sensor
2. Regulate calibration solution
temperature

505 - 522:
Limit values of calibration monitoring system exceeded/undershot. Measuring can continue if a warning is issued.
Possible reasons: sensor old or defective, reference blocked, calibration solution too old or contaminated
1. Check sensor, replace if necessary
2. Check calibration solution, replace if necessary
3. Repeat calibration
505

Sensor calib.

M

On

Off

P, O, I, Cl

Max. zero point warning

507

Sensor calib.

M

On

Off

P, O, I, Cl

Min. zero point warning509

Sensor calib.

M

On

Off

P, O, I, Cl

Min. slope warning

511

Sensor calib.

M

On

Off

P, O, I, Cl

Max. slope warning

513

Zero Warn

M

On

Off

O (amp.), Cl

Zero point warning

515

Sensor calib.

M

On

Off

P (ISFET)Max. operating point warning

517

Sensor calib.

M

On

Off

P (ISFET)Min. operating point warning

518

Sensor calib.

M

On

Off

P, O, I, Cl

Delta slope warning

520

Sensor calib.

M

On

Off

P, O, I, Cl

Delta zero point warning

522

Sensor calib.

M

On

Off

P (ISFET)

Delta operating point warning

26

Endress+Hauser

Liquiline CM442R/CM444R/CM448R

No.

Message

Diagnostics and troubleshooting

Factory settings
Cat.

Diag. Error
current

Sensor type Tests or remedial measures

523

Sensor calib.

M

On

On

C

524

Sensor calib.

M

On

On

C

526

Sensor calib.

M

On

Off

C

Invalid cell constant, max./min. value or
lower/upper warning value reached
1. Calibrate sensor
2. Replace sensor

528

Sensor calib.

M

On

Off

C

534

Sensor calib.

M

On

Off

Cl

Set limit for electrolyte consumption isreachedMeasurement can still take place.
1. Replace the electrolyte
2. Clear the electrolyte consumption
counter

535

Sensor check

M

On

Off

O (amp.), Cl

Specified number of cap calibrations isreachedMeasurement can still take place.
Replace sensor cap

550

Process temp.

S

On

On

C

551

Process temp.

S

On

On

C

Process temperature above/below
concentration table– Process value outside specification– Incomplete table--> Extend table

552

Process conduc.

S

On

On

C

553

Process conduc.

S

On

On

C

554

Process conc.

S

On

On

C

555

Process concent.

S

On

On

C

Process conductivity above/below
concentration table– Process value outside specification– Incomplete table--> Extend table
Process concentration above/below
concentration table– Process value outside specification– Incomplete table--> Extend table

556

Process temp.

S

On

On

C

557

Process temp.

S

On

On

C

Process temperature above/below
compensation table– Process value outside specification– Incomplete table--> Extend table

558

Process conduc.

S

On

On

C

559

Process conduc.

S

On

On

C

Process compensation above/below
compensation table– Process value outside specification– Incomplete table--> Extend table

Endress+Hauser

27

Diagnostics and troubleshootingNo.

Message

Liquiline CM442R/CM444R/CM448R

Factory settings
Cat.

Diag. Error
current

Sensor type Tests or remedial measures

560

Proc.cond.comp

S

On

On

C

561

Proc.cond.comp

S

On

On

C

Conductivity compensation above/below
compensation table– Process value outside specification– Incomplete table--> Extend table

720

Membrane change

M

On

Off

I

Replacement of the membrane cap necessary
1. Replace membrane cap
2. Reset the timer

722

Sensor reference

F

On

On

P

Alarm: Reference membrane impedance toolow.
1. Check sensor, replace if necessary
2. Check and correct the reference limit
value

723

Sensor reference

M

On

Off

I

Warning: Reference membrane impedance
too low. Measurement can continue until thealarm.
1. Check sensor, replace if necessary
2. Check and correct the reference limit
value

724

Sensor reference

F

On

On

I

Alarm: Reference membrane impedance too
high.
1. Check sensor, replace if necessary
2. Check and correct the reference limit
value

725

Sensor reference

M

On

Off

I

Alarm: Reference membrane impedance toohigh. Measurement can continue until thealarm.
1. Check sensor, replace if necessary
2. Check and correct the reference limit
value

771

Lamp change

F

On

Off

N, T, S

Lamp change alarm• Configured operating hours have beenreached-> Replace the lamp-> Contact the Service Department

841

Operating range

S

Off

Off

All

Process value outside operational range
1. Check application
2. Check sensor

842

Process value

S

Off

Off

P

843

Process value

S

Off

Off

P

Process limit value exceeded/undershot
Reasons: sensor in air, air pockets inassembly, incorrect flow to sensor, sensor
defective
1. Change process value
2. Check measuring chain
3. Change sensor type

28

Endress+Hauser

Liquiline CM442R/CM444R/CM448R

No.

Message

Diagnostics and troubleshooting

Factory settings
Cat.

Diag. Error
current

Sensor type Tests or remedial measures

844

Process value

S

Off

Off

N, T, S

Measured value outside specified range
Reasons: sensor in air, air pockets inassembly, incorrect flow to sensor, sensor
defective
1. Increase process value
2. Check measuring chain
3. Change sensor type

904

Process check

F

On

On

All

Stagnating measuring signal
Reasons: sensor in air, sensor fouling,
incorrect flow to sensor, sensor defective
1. Check measuring chain
2. Check sensor
3. Restart device

914

USP/ EP alarm

M

On

Off

C

915

USP / EP warning

M

On

Off

C

USP limit values exceeded
Check process

934

Process temp.

S

Off

Off

All except U Process temperature high
1. Do not increase temperature
2. Check measuring chain
3. Change sensor type

935

Process temp.

S

Off

Off

All except U Process temperature low
1. Do not reduce temperature
2. Check measuring chain
3. Change sensor type

942

Process value

S

Off

Off

All except U Process value high
1. Do not increase process value
2. Check measuring chain
3. Change sensor type

943

Process value

S

Off

Off

All except U Process value low
1. Do not decrease process value
2. Check measuring chain
3. Change sensor type

944

Sensor range

S

On

Off

S

Measurement at the margin of sensor's
dynamic range.
Reasons: Changes in the process to a higher
or lower measuring range.
1. Check application
2. Use sensor suited to the measuring
range of the application

983

Sensor ISE check

F

On

On

I

Electrode or membrane defective
1. Check electrode, replace if necessary
2. Check membrane cap, replace ifnecessary

984

Process temp.

S

On

On

I

Temperature outside specification
1. Check process temperature
2. Check measuring chain

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Diagnostics and troubleshootingNo.

Message

Liquiline CM442R/CM444R/CM448R

Factory settings
Cat.

Diag. Error
current

Sensor type Tests or remedial measures

985

Sensor Interface

F

On

On

I

Sensor interface error
1. Check plug
2. Check cable, replace if necessary

987

Calib. req.

M

On

On

I

Electrode change--> Calibration required

1.6.3 Configuration options for troubleshooting
The table only lists the diagnostics messages that depend on your settings in the menu. The
path where you can change the settings is specified in the table.
The sensor type is also indicated in the path if the message only applies to one type of sensor.
All other settings affect several sensor types.
No.

Path to software function

102

Menu/Setup/Inputs/Extended setup/Calib. settings/Calibration timer

103

Menu/Setup/Inputs/Extended setup/Calib. settings/Calibration timer/Calibration timer

104

Menu/Setup/Inputs/Extended setup/Calib. settings/Calib. expiration date/Alarm limit

105

Menu/Setup/Inputs/Extended setup/Calib. settings/Calib. expiration date/Warning limit

108

Menu/Setup/Inputs/Extended setup/Diagnostics settings/Sterilizations/Warning limit

109

Menu/Setup/Inputs/Oxygen (amp.)/Extended setup/Diagnostics settings/Number of cap sterilizations/Warning
limit

122

Menu/Setup/Inputs/pH Glass/Extended setup/Diagnostics settings/Glass impedance (SCS)/Lower alarm limit

123

Menu/Setup/Inputs/pH Glass/Extended setup/Diagnostics settings/Glass impedance (SCS)/Lower warning limit

124

Menu/Setup/Inputs/pH Glass/Extended setup/Diagnostics settings/Glass impedance (SCS)/Upper alarm limit

125

Menu/Setup/Inputs/pH Glass/Extended setup/Diagnostics settings/Glass impedance (SCS)/Upper warning limit

126

Menu/Setup/Inputs/pH Glass/Extended setup/Diagnostics settings/Sensor Condition Check

127

Menu/Setup/Inputs/pH Glass/Extended setup/Diagnostics settings/Sensor Condition Check

145

Menu/Setup/Inputs/Extended setup/Diagnostics settings/Delta slope/Alarm limit

157

Menu/Setup/Inputs/Nitrate/Extended setup/Diagnostics settings/Limits operating hours/Filter change

168

Menu/Setup/Inputs/Cond c/Extended setup/Polarization detetected

169

Menu/Setup/Inputs/SAC/Extended setup/Diagnostics settings/Limits operating hours/Operation > 200 mg/l

170

Menu/Setup/Inputs/SAC/Extended setup/Diagnostics settings/Limits operating hours/Operation < 50 mg/l

176

Menu/Setup/Inputs/Chlorine/Extended setup/Diagnostics settings/Limits operating hours

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Diagnostics and troubleshooting

No.

Path to software function

178

Menu/Setup/Inputs/Oxygen (amp.)/Extended setup/Diagnostics settings/Number of cap sterilizations/Alarm
limit

179

Menu/Setup/Inputs/Extended setup/Diagnostics settings/Limits operating hours/Operation > 300 mV

180

Menu/Setup/Inputs/Extended setup/Diagnostics settings/Limits operating hours/Operation < -300 mV

181

Menu/Setup/Inputs/Extended setup/Oxygen (opt.)/Diagnostics settings/Limits operating hours/Operation <
25 μs

182

Menu/Setup/Inputs/Oxygen (opt.)/Extended setup/Diagnostics settings/Limits operating hours/Operation >
40 μs

183

Menu/Setup/Inputs/Oxygen (amp.)/Extended setup/Diagnostics settings/Limits operating hours/Operation >
15 nA

184

Operating time

185

Menu/Setup/Inputs/Oxygen (amp.)/Extended setup/Diagnostics settings/Limits operating hours/Operation >
50 nA

186

Operating time

187

Menu/Setup/Inputs/Cond c/Extended setup/Diagnostics settings/Limits operating hours/Operation > 80°C <100nS/cm

188

Menu/Setup/Inputs/Extended setup/Diagnostics settings/Limits operating hours/Operation < 5°C

190

Menu/Setup/Inputs/Extended setup/Diagnostics settings/Limits operating hours/Operation > 25°C

192

Menu/Setup/Inputs/Extended setup/Diagnostics settings/Limits operating hours/Operation > 40°C

193

Menu/Setup/Inputs/Extended setup/Diagnostics settings/Limits operating hours/Operation > 80°C

194

Menu/Setup/Inputs/Extended setup/Diagnostics settings/Limits operating hours/Operation > 100°C

195

Menu/Setup/Inputs/Extended setup/Diagnostics settings/Limits operating hours/Operation > 120°C

196

Menu/Setup/Inputs/Extended setup/Diagnostics settings/Limits operating hours/Operation > 125°C

197

Menu/Setup/Inputs/Extended setup/Diagnostics settings/Limits operating hours/Operation > 140°C

198

Menu/Setup/Inputs/Extended setup/Diagnostics settings/Limits operating hours/Operation > 150°C

199

Menu/Setup/Inputs/Extended setup/Diagnostics settings/Limits operating hours/Operating time

505

Menu/Setup/Inputs/Extended setup/Diagnostics settings/Zero point/Upper warning limit

507

Menu/Setup/Inputs/Extended setup/Diagnostics settings/Zero point/Lower warning limit

509

Menu/Setup/Inputs/Oxygen (amp.)/Extended setup/Diagnostics settings/Slope/Lower warning limit

511

Menu/Setup/Inputs/Oxygen (amp.)/Extended setup/Diagnostics settings/Slope/Upper warning limit

513

Menu/Setup/Inputs/Oxygen (amp.)/Extended setup/Diagnostics settings/Zero point/Warning limit

515

Menu/Setup/Inputs/pH ISFET/Extended setup/Diagnostics settings/Operating point/Upper warning limit

517

Menu/Setup/Inputs/pH ISFET/Extended setup/Diagnostics settings/Operating point/Lower warning limit

518

Menu/Setup/Inputs/Extended setup/Diagnostics settings/Delta slope/Warning limit

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Diagnostics and troubleshooting

Liquiline CM442R/CM444R/CM448R

No.

Path to software function

520

Menu/Setup/Inputs/Extended setup/Diagnostics settings/Delta zero point/Warning limit

522

Menu/Setup/Inputs/pH ISFET/Extended setup/Diagnostics settings/Delta operating point/Warning limit

842

Menu/Setup/Inputs/Redox/Extended setup/Diagnostics settings/Redox-Meas value/Upper alarm limit

843

Menu/Setup/Inputs/Redox/Extended setup/Diagnostics settings/Redox-Meas value/Lower alarm limit

904

Menu/Setup/Inputs/Extended setup/Diagnostics settings/Process Check System

934

Menu/Setup/Inputs/Extended setup/Diagnostics settings/Limits operating hours

935

Menu/Setup/Inputs/Extended setup/Diagnostics settings/Limits operating hours

942

Menu/Setup/Inputs/Redox/Extended setup/Diagnostics settings/Redox-Meas value/Upper warning limit

943

Menu/Setup/Inputs/Redox/Extended setup/Diagnostics settings/Redox-Meas value/Lower warning limit

1.7

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.

1.8

Diagnostics list

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

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1.9

Diagnostics and troubleshooting

Event logbook

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

Visible inMax.
entriesCan bedisabled
1)

Logbook
can bedeletedEntriescan bedeletedCan beexported

Overall logbook

All events

1000

Yes

No

Yes

No

Diagnostics logbook

Diagnostic events

250

(Yes)

No

Yes

Yes

Calibration logbook

Calibration events

75

(Yes)

No

Yes

Yes

Operation logbook

Configuration events

250

(Yes)

No

Yes

Yes

Version logbook

All events

50

No

No

No

Yes

Hardware version
logbookAll events

125

No

No

No

Yes

Data logbook

Data logbooks

150,000

Yes

Yes

Yes

Yes

Debugging logbook

Only accessible with thespecial activation code
(Service)

1000

Yes

No

Yes

Yes

1)

Data in brackets means this depends on the overall logbook

1.9.2 Menu Logbooks
Diagnostics/Logbooks
Function

Options

All events

Info
Chronological list of all the logbook entries, withinformation on the type of event.

Show

Events are displayed

Select a particular event to display more detailed
information.

Go to date

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

Events are displayed

Select a particular event to display more detailed
information.

Calibration eventsShow

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Chronological list of the calibration events.

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Diagnostics/Logbooks
Function

Options

Info

Go to date

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

Delete all entries

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

Delete all entries

ActionYou 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.

Go to date

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

Delete all entries

ActionYou 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 suchas 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 thegraph 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 1:
– A small cross marks the currently selected graph for which the zoom can be changed or acursor used, for example.
– In the context menu (press the navigator button), you can select the other graph. You canthen 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.

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Diagnostics and troubleshooting

Fig. 1: Simultaneous display of two graphs, the upper one is "selected"

a0016688

Diagnostics/Logbooks
Function

Options

Info

Data logbooks

Chronological list of the data logbook entries.

Data logbook 1 <Logbook
name>This submenu is available for each data logbook that you
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 thelogbook entries

The entries are displayed according to your settings in
the General settings/Logbooks menu.

Select 2nd plot

Selecting another datalogbookYou can view a second logbook at the same time as thecurrent one.

Go to date

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

Delete all entries

ActionYou can use this to delete all data logbook entries.

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Diagnostics and troubleshooting

Liquiline CM442R/CM444R/CM448R

Diagnostics/Logbooks
Function

Options

Info

Options
• CSV
• FDM

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

Save logbooks
File format

All data logbooks
Data logbook 1 to n
All event logbooks
Calibration logbook
Diagnostic logbook
Configuration logbook
HW version logbook
Version logbook

The action commences assoon as the option is
selected

Use this function to save the logbook to an SD card.

‣ Insert the SD card into the device card reader andselect the logbook to be saved.

The file name is made up of the "Logbook ident" (Menu/Setup/General settings/Logbooks), an abbreviation forthe particular logbook and a time stamp
1)

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

1.10 Simulation
You can simulate values at inputs and outputs for testing purposes:• Current values at current outputs• Measured values at inputs
Diagnostics/Simulation
Function

Options

Current outputx:ySimulation

Info
Simulation of an output current
This menu appears once for each current output.

Options• On• Off

If you simulate the value at the current output, this isindicated on the display by a simulation icon in front of
the current value.

Factory setting
Off
Current

2.4 to 23.0 mA

Set the desired simulation value.

Factory setting
4 mA

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Diagnostics and troubleshooting

Diagnostics/Simulation
Function

Options

Alarm relay
Relay x:y
Simulation

Info
Simulation of a relay stateThis menu appears once for each relay.

Options• On• Off

If you simulate the relay state, this is indicated on thedisplay by a simulation icon in front of the relay display.

Factory setting
Off
State

Options• Low• HighFactory setting
Low

Meas. inputs

Simulation of a measured value
This menu appears once for each measuring input.

Channel : parameterSim. main value

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

Options• On• Off

If you simulate the measured value, this is indicated on
the display by a simulation icon in front of the measured
value.

Factory setting
Off
Main value

Depends on the sensor

Set the desired simulation value.

Factory setting
Depends on the sensor
Sim. temperature

Options• On• Off

If you simulate the temperature measured value, this isindicated on the display by a simulation icon in front of
the temperature.

Factory setting
Off
Temperature-50.0 to +250.0 ˚C(-58.0 to 482.0 ˚F)

Set the desired simulation value.

Factory setting
20.0 ˚C (68.0 ˚F)

1.11 Reset measuring instrument
Diagnostics/Systemtest/Reset
Function
Device reset

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Options

Info

Options• OK• ESC

Restart and keep all the settings

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Diagnostics and troubleshooting

Liquiline CM442R/CM444R/CM448R

Diagnostics/Systemtest/Reset
Function

Options

Info

Factory default

Options• OK• ESC

Restart with factory settings
Settings that have not been saved are lost.

Power supply

Read only• Digital Supply 1: 1.2V
• Digital Supply 2: 3.3V
• Analog Supply: 12.5V• Sensor Supply: 24V• Temperature

Detailed list of power supply to instrument.
The actual values can vary without a malfunction
being present.

1.12 Device information
1.12.1 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 thehardware 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 thehardware. You must enter this yourself.

Serial number

Read only

The serial number allows you to access device data anddocumentation on the Internet:
www.products.endress.com/device-viewer

Software version

Read only

Current version

Read only• Description• Serial number• Order code
• Hardware version• Software version

This information is provided for every electronics
module available. Specify the serial numbers and ordercodes when servicing, for example.

System modules
Depends on the electronics
module available, e.g.:
Base

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Diagnostics and troubleshooting

Diagnostics/System information
Function

Options

Info

Read only• Description• Serial number• Order code
• Hardware version• Software version

This information is provided for every sensor available.
Specify the serial numbers and order codes whenservicing, for example.

Sensors
Depends on the sensors
connected

1)

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

1.12.2 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.
temperatures1)• 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.

1.13 Firmware history
Date

VersionChanges to software

07/2013 01.04.00 Original firmware

1)

Documentation: edition
BA01225C/07/EN/01.13
BA01227C/07/EN/01.13
BA00450C/07/EN/17.13
BA00451C/07/EN/16.13
BA00486C/07/EN/02.13

Not available for all sensor types.

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39

Maintenance2

Liquiline CM442R/CM444R/CM448R

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 thesecircuits before working on the terminals.

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.

2.1

Calibration

Sensors with Memosens protocol are calibrated at the factory.
Users must decide whether the process conditions present require calibration during initialcommissioning.
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 BA00451C "Calibration".

2.2

Cleaning

2.2.1 External display (in installed state)
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

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Maintenance

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 orconcentrated glycerol cleaner.
‣ Never use high-pressure steam for cleaning purposes.
2.2.2 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.

2.
3.
4.
5.
6.

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.
Remove the sensor to be serviced and install the new sensor.
You must perform calibration if you use a sensor that is not precalibrated.
The sensor data are automatically accepted by the transmitter. A release code is not
required.
Measurement is resumed.
Take the used sensor back to the laboratory. In the laboratory you can get the sensor readyfor 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 aregeneration solution (--> sensor manual).
– Recalibrate the sensor for reuse.

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

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Repair

Liquiline CM442R/CM444R/CM448R

3

Repair

3.1

Spare parts

Fig. 2: Spare parts: You can find the names of spare parts and their order numbers in the following table.

42a0020679

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Liquiline CM442R/CM444R/CM448R

RepairNOTICE
Damaged cable resulting from careless maintenance or repair work
‣ Take care when replacing defective cables, particularly if pulling them out of a cable duct
‣ Use a junction box preferably, which then constitutes a stationary connection to the cabinet.
Item

Kit CM44x

Order number

1

Kit CM442R• Control cabinet installation housing, complete

71222273

2

Kit CM44x/CM44xR: electronics module backplane• Backplane complete• To be replaced only by Endress+Hauser Service

71101457

3

Kit CM444R/448R• Control cabinet installation housing, complete

71222276

4

Kit CM44x/CM44xR: electronics module extension backplane• Extension backplane complete• To be replaced only by Endress+Hauser Service

71141366

5, 11

Kit CM44xR• Set of covers for protection against contact

71222282

9

Kit CM442: basic module BASE-L 24V AC/DC• Basic module 24V AC/DC complete• End cover (item 8)• Instructions for spare parts kit CM44x

71100607

Kit CM442: basic module BASE-H 230V AC• Basic module 230V AC, complete• End cover (item 8)• Instructions for spare parts kit CM44x

71100611

Kit CM444/CM448: basic module BASE-E• Basic module, complete• End cover (item 8)• Connecting cable for connecting to a EPS-H or EPS-L power unit
• Instructions for spare parts kit CM44x

71141336

Kit CM44x: terminal set, basic module71107452

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43Repair

Liquiline CM442R/CM444R/CM448R

Item

Kit CM44x

Order number

6, 7, 8, 10

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

71111053

Kit CM44x/CM44xR: terminal set, extension module AOR

71107453

Kit CM44x/CM44xR: extension module 2R (2 relays)• Extension module 2R complete• Instructions for spare parts kit CM44x

71125375

Kit CM44x/CM44xR: extension module 4R (4 relays)• Extension module 4R complete• Instructions for spare parts kit CM44x

71125376

12

44

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

71155581

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

71135632

Kit CM44x/CM44xR: extension module 4AO (4 x 0/4 to 20 mA)• Extension module 4AO complete• Instructions for spare parts kit CM44x

71135633

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

71155582

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

71135638

Kit CM44x/CM44xR: terminal set, extension module DIO

71219784

Kit CM44x/CM44xR: extension module 2DS (2 x digital sensor)• Extension module 2DS complete• Instructions for spare parts kit CM44x

71135631

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

71135639

Kit CM44x/CM44xR: extension module 485 (Ethernet configuration)• Extension module 485 complete• With activation code extendable to PROFIBUS DP or Modbus RS 485 or
Modbus TCP• Instructions for spare parts kit CM44x

71135634

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

71155583

Kit CM444R/8R: DIN rail power unit
• DIN rail power unit 110 to 230 VAC• DIN rail power unit 24 VDC• 71222277• 71222279

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Liquiline CM442R/CM444R/CM448R

3.2

RepairReturnThe 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 isobligated 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 sitewww.services.endress.com/return-material

3.3

Disposal

The device contains electronic components and must therefore be disposed of in accordancewith 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 battery
disposal regulations.

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Accessories

4

Liquiline CM442R/CM444R/CM448R

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.

4.1

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

4.2

Sensors

4.2.1 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

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Ceragel CPS71D• pH sensor with Memosens technology• Twin-chamber reference system and integrated bridge electrolyte• 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
4.2.2 Enamel pH electrodes
Ceramax CPS341D• pH electrode with pH-sensitive enamel• For the toughest requirements in terms of precision, pressure, temperature, sterility andoperating life
• Order as per product structure (--> Online Configurator,
www.products.endress.com/cps341d)• Technical Information TI468C/07/EN
4.2.3 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• Twin-chamber reference system and integrated bridge electrolyte• Order as per product structure (--> Online Configurator, www.products.endress.com/cps72d)• Technical Information TI374C/07/EN

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Orbipac CPF82D• Redox compact sensor for installation or immersion operation in industrial water andwastewater• 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
4.2.4 pH-ISFET sensors
Tophit CPS471D• Sterilizable and autoclavable ISFET sensor with Memosens technology• For food and pharmaceutical industry, process engineering, water treatment andbiotechnology• 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
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
4.2.5 Combined pH/ORP sensors
Memosens CPS16D• Combined pH/ORP sensor for process technology, with dirt-resistant PTFE diaphragm• With Memosens technology• Order as per product structure (--> Online Configurator, www.products.endress.com/cps16d)• Technical Information TI00503C/07/EN

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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
4.2.6 Inductive conductivity sensors
Indumax CLS50D• Inductive conductivity sensor with very good resistance properties for standard, Ex andhigh-temperature applications• Memosens protocol• Order as per product structure (--> Online Configurator, www.products.endress.com/cls50d)• Technical Information TI182C/07/EN
4.2.7 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 TI109C/07/EN
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

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4.2.8 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 TI413C/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
4.2.9 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
4.2.10 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
4.2.11 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

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4.2.12 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
4.2.13 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

4.3

Additional functionality

4.3.1 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
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

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Kit 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. This requires anadditional activation code which can be ordered separately (→ ä 52).
• 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
4.3.2 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
Kit CM442R: Activation code for 2nd digital sensor input• Order No. 71114663

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Kit CM444R/CM448R: 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

4.4

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

4.5

Other accessories

4.5.1 External display
Graphic display• For installation in door or casing of control cabinet• Order No. 71185295
Service display• Portable, for commissioning• Order No. 71185296
4.5.2 SD card
SD card• Industrial Flash Drive, 1 GB
• Order No. 71110815

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Index

A

E

Accessories
Activation codes . . . . . . . . . . . . . . . . . . . . . . 52
Extension modules . . . . . . . . . . . . . . . . . . . . 51
Measuring cable . . . . . . . . . . . . . . . . . . . . . . 46
SD card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Activation codes . . . . . . . . . . . . . . . . . . . . . . . . 52

Error categories . . . . . . . . . . . . . . . . . . . . . . . . 13
Event logbook . . . . . . . . . . . . . . . . . . . . . . . . . 33
Extension modules . . . . . . . . . . . . . . . . . . . . . 51

C

Logbooks . . . . . . . . . . . . . . . . . . . . . . . . . . 33–36

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Cleaning
Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . 41
External display . . . . . . . . . . . . . . . . . . . . . . 40
Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Cleaning assemblies . . . . . . . . . . . . . . . . . . . . . 41
Cleaning display . . . . . . . . . . . . . . . . . . . . . . . . 40
Cleaning sensors. . . . . . . . . . . . . . . . . . . . . . . . 41

D
Device behavior. . . . . . . . . . . . . . . . . . . . . . . . . 14
Device information . . . . . . . . . . . . . . . . . . . . . . 38
Device test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Device-specific errors . . . . . . . . . . . . . . . . . . . . 12
Diagnostic information
Fieldbus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Onsite display . . . . . . . . . . . . . . . . . . . . . . . . 13
Web browser . . . . . . . . . . . . . . . . . . . . . . . . 13
Diagnostic message
Classification. . . . . . . . . . . . . . . . . . . . . . . . . 13
Device behavior, adjusting . . . . . . . . . . . . . . 14
Device-specific . . . . . . . . . . . . . . . . . . . . . . . 16
Pending message . . . . . . . . . . . . . . . . . . . . . 32
Sensor-specific . . . . . . . . . . . . . . . . . . . . . . . 19
Settings for troubleshooting. . . . . . . . . . . . . 30
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Device test/reset. . . . . . . . . . . . . . . . . . . . . . 37
Event logbook . . . . . . . . . . . . . . . . . . . . . . . . 33
Sensor information. . . . . . . . . . . . . . . . . . . . 39
Simulation. . . . . . . . . . . . . . . . . . . . . . . . . . . 36
System information . . . . . . . . . . . . . . . . . . . 38
Diagnostics list . . . . . . . . . . . . . . . . . . . . . . . . . 32

54

F
Fieldbus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Firmware history . . . . . . . . . . . . . . . . . . . . . . . 39

L
M
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Measuring cable . . . . . . . . . . . . . . . . . . . . . . . 46

O
Onsite display . . . . . . . . . . . . . . . . . . . . . . . . . 13

P
Pending diagnostic message . . . . . . . . . . . . . . 32
Process error
Chlorine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
pH/ORP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Process errors . . . . . . . . . . . . . . . . . . . . . . . 4–11
Conductivity. . . . . . . . . . . . . . . . . . . . . . . . . . 6
ISE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Oxygen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Turbidity, SAC and nitrate . . . . . . . . . . . . . 11

R
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Liquiline CM442R/CM444R/CM448R

S
SD card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Sensor information. . . . . . . . . . . . . . . . . . . . . . 39
Sensors
Chlorine . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Conductivity, conductive . . . . . . . . . . . . . . . 49
Conductivity, inductive. . . . . . . . . . . . . . . . . 49
Enamel pH electrodes . . . . . . . . . . . . . . . . . 47
Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
ISE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Nitrate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
ORP sensors . . . . . . . . . . . . . . . . . . . . . . . . . 47
Oxygen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
pH glass electrodes. . . . . . . . . . . . . . . . . . . . 46
pH-ISFET . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
SAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Turbidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
System information . . . . . . . . . . . . . . . . . . . . . 38

T
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . 4–32

W
Web browser . . . . . . . . . . . . . . . . . . . . . . . . . . 13

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