Endress+Hauser Liquiline CM442 User manual

BA445C/07/EN/13.10
71124073
Valid as of:
Software version 01.02.00
Operating Instructions
Liquiline CM442
Universal four-wire multichannel controller
Maintenance & diagnostics

About this manual
This manual describes all the tasks you must perform for maintenance, diagnostics and troubleshooting.
A description of the following is provided here:
• Maintenance
• "Diagnostics" menu
– Diagnostics list
– Logbooks
– System information
– Sensor information
– Simulation
– Systemtest/Reset
• Troubleshooting
• Accessories and spare parts
This manual does not include the following:
• Display/Operation
--> Operating Instructions BA444C "Commissioning"
• Basic setup
--> Operating Instructions BA444C "Commissioning"
• Setup/General settings
--> Operating Instructions BA450C "Operation&settings"
• Inputs
--> Operating Instructions BA450C "Operation&settings"
•Outputs
--> Operating Instructions BA450C "Operation&settings"
• Additional functions
--> Operating Instructions BA450C "Operation&settings"
• Calibration
--> Operating Instructions BA451C "Calibration"
• Expert
--> Internal Service Manual

Endress+Hauser
Table of contents
1 Maintenance. . . . . . . . . . . . . . . 4
1.1 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Diagnostics menu . . . . . . . . . . . 6
2.1 Diagnostics list . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Logbooks . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 System information . . . . . . . . . . . . . . . . . . 8
2.4 Sensor information . . . . . . . . . . . . . . . . . . . 9
2.5 Simulation . . . . . . . . . . . . . . . . . . . . . . . . 10
2.6 Systemtest/Reset . . . . . . . . . . . . . . . . . . . 11
3 Troubleshooting . . . . . . . . . . . 12
3.1 Troubleshooting . . . . . . . . . . . . . . . . . . . . 12
3.2 System error messages . . . . . . . . . . . . . . . 12
3.3 Process errors without messages . . . . . . . . 29
3.4 Device-specific errors . . . . . . . . . . . . . . . . 36
3.5 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.6 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.7 Software history . . . . . . . . . . . . . . . . . . . . 37
4 Accessories. . . . . . . . . . . . . . . 38
4.1 Weather protection cover . . . . . . . . . . . . . 38
4.2 Post mounting kit . . . . . . . . . . . . . . . . . . . 38
4.3 Measuring cable . . . . . . . . . . . . . . . . . . . . 38
4.4 Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.5 Additional functionality . . . . . . . . . . . . . . 41
4.6 Other accessories . . . . . . . . . . . . . . . . . . . 42
5 Spare parts . . . . . . . . . . . . . . . 43
Index . . . . . . . . . . . . . . . . . . . 46

Maintenance
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1 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, tem-
perature and contamination.
►De-energize the device before opening it.
►Power can be supplied to switching contacts from separate circuits. De-energize these circuits
before working on the terminals.
Take all the necessary precautions in time to ensure the operational safety and reliability of the entire
measuring point.
Maintenance of the measuring point comprises:
• Calibration
• Cleaning the controller, assembly and sensor
• Checking cables and connections
When performing any work on the device, bear in mind any potential impact this may have on the
process control system or on the process itself.
NOTICE
Electrostatic discharge (ESD)
Risk of damaging the electronic components
►Take personal protective measures to avoid ESD, such as discharging beforehand at PE or perma-
nent grounding with a wrist strap.
►For your own safety, only use genuine spare parts. With genuine parts, the function, accuracy and
reliability are also ensured after maintenance work.
1.1 Calibration
Sensors with Memosens protocol are calibrated at the factory.
Users must decide whether the process conditions present require calibration during initial
commissioning.
Additional calibration is not required in many standard applications.
Calibrate the sensors at sensible intervals depending on the process.
All information on calibration is provided in BA451C "Calibration".

Maintenance
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1.2 Cleaning
1.2.1 Controller
Only clean the front of the housing with commercially available cleaning agents.
The front is resistant to the following as per DIN 42 115:
• Ethanol (short periods)
• Diluted acids (max. 2% HCl)
• Diluted bases (max. 3% NaOH)
• Soap-based household cleaners
NOTICE
Prohibited cleaning agents
Damage to the housing surface or housing seal
►For cleaning purposes, never use concentrated mineral acids or bases.
►Never use organic cleaners such as benzyl alcohol, methanol, methylene chloride, xylene or
concentrated glycerol cleaner.
►Never use high-pressure steam for cleaning purposes.
1.2.2 Digital sensors
1. If an error occurs or the maintenance schedule stipulates that the sensor has to be replaced, use a
new sensor, or a sensor that has been precalibrated in the laboratory.
A sensor is calibrated in the laboratory under optimum external conditions, thereby ensuring
better quality of measurement.
2. Remove the sensor to be serviced and install the new sensor.
3. You must perform calibration if you use a sensor that is not precalibrated.
4. The sensor data are automatically accepted by the transmitter. A release code is not required.
5. Measurement is resumed.
6. Take the used sensor back to the laboratory. In the laboratory you can get the sensor ready for
reuse while ensuring the availability of the measuring point.
– Clean the sensor. For this purpose, use the cleaning agent specified in the sensor manual.
– Inspect the sensor for cracks or other damage.
– If no damage is found, regenerate the sensor. Where necessary, store the sensor in a
regeneration solution (--> sensor manual).
– Recalibrate the sensor for reuse.
1.2.3 Assemblies
Refer to the assembly operating manual for information on servicing and troubleshooting the assembly.
The assembly operating manual describes the procedure for mounting and disassembling the assembly,
replacing the sensors and seals, and contains information on the material resistance properties, as well
as spare parts and accessories.

Diagnostics menu
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2 Diagnostics menu
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"
Last diagnostics message recorded
All the other functions in the Diagnostics menu are described in the following chapters.
2.1 Diagnostics list
All the current diagnostics messages are listed here.
A time stamp is available for each message. Furthermore, the system also displays the configuration and
description of the message as saved in "Menu/Setup/General settings/Diagnostics/Device behavior".
2.2 Logbooks
Types of logbooks
• Logbooks physically available (all apart from the overall logbook)
• Database view of all logbooks (=overall logbook)
Logbook Visible in Max.
entries
Can be
disabled1)
1) Data in brackets means this depends on the overall logbook
Logbook
can be
deleted
Entries
can be
deleted
Can be
exported
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 logbook All events 125 No No No Yes
Data logbook Data logbooks 150,000 Yes Yes Yes Yes
Debugging logbook Only accessible with the special
activation code (Service)
1000 Yes No Yes Yes

Diagnostics menu
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You can view your data logbook entries graphically on the display ("Show plot").
You can also adapt the display to suit your individual requirements:
• If you press the navigator button in the graphic display, you are given additional options such as the
zoom function and x/y movement of the graph.
• Furthermore, you can also define a cursor. If you select this option, you can move along the graph
with the navigator and view the logbook entry (data stamp/measured value) in text form for every
point in the graph.
Diagnostics/Logbooks
Function Options Info
All events Chronological list of all the logbook entries, with information
on the type of event.
Show Events are displayed Select a particular event to display more detailed
information.
Go to date User input
•Gotodate
•Time
Use this function to go directly to a specific time in the list. In
this way, you avoid having to scroll through all the
information. The complete list is always visible, however.
Calibration events Chronological list of the calibration events.
Show Events are displayed Select a particular event to display more detailed
information.
Go to date User input
•Gotodate
•Time
Use this function to go directly to a specific time in the list. In
this way, you avoid having to scroll through all the
information. The complete list is always visible, however.
Delete all entries Action You can delete all the calibration logbook entries here.
Configuration events Chronological list of the configuration events.
Show Events are displayed Select a particular event to display more detailed
information.
Go to date User input
•Gotodate
•Time
Use this function to go directly to a specific time in the list. In
this way, you avoid having to scroll through all the
information. The complete list is always visible, however.
Delete all entries Action You can delete all the calibration logbook entries here.
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
•Gotodate
•Time
Use this function to go directly to a specific time in the list. In
this way, you avoid having to scroll through all the
information. The complete list is always visible, however.
Delete all entries Action You can delete all the calibration logbook entries here.

Diagnostics menu
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2.3 System information
Diagnostics/Logbooks
Function Options Info
Data logbooks Chronological list of the data logbook entries.
Show Events are displayed Select a particular event to display more detailed
information.
Show plot Graphic display of the logbook
entries
The entries are displayed according to your settings in the
General settings/Logbooks menu.
Go to date User input
•Gotodate
•Time
Use this function to go directly to a specific time in the list. In
this way, you avoid having to scroll through all the
information. The complete list is always visible, however.
Delete all entries Action You can delete all the calibration logbook entries here.
Save logbooks Options
• All event logbooks
• Calibration logbook
• Diagnostic logbook
• Configuration logbook
• HW version logbook
• Version logbook
Use this function to save the logbook to an SD card. You can
then open the file you saved (.csv) at the PC and process it in
MS-Excel for example.
Insert the SD card into the controller card reader and select
the logbook to be saved.
File format 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 further1).
You can import the FDM files into Fieldcare and archive
them so they are tamper-proof.
1) CSV files use international number formats and separators. Therefore they must be imported into MS Excel as external data
with the correct format settings. If you double-click the file to open it, the data are only displayed correctly if MS Excel is
installed with the US country setting.
The file name is made up of the "Logbook ident" (Menu/Setup/General settings/Logbooks), an abbreviation for the
particular logbook and a time stamp.
Diagnostics/System information
Function Options Info
Device tag Read only Individual device tag, --> "General settings"
Order code Read only You can order identical hardware with this code.
This code changes on account of changes to the hardware
and you can enter the new code you received from the
manufacturer here1).
To find out what device version you have, enter the order code in the search screen at the following address:
www.products.endress.com/order-ident

Diagnostics menu
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2.4 Sensor information
Select the channel you want from the list of channels.
Information in the following categories is displayed:
• Sensor state
Extreme conditions to which the sensor has been exposed up to now, e.g. min./max. temperatures
• 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
Orig. order code ext. Read only Complete order code resulting from the product structure.
This code changes on account of changes to the hardware
and you can enter the new code here.
Serial number Read only The serial number allows you to access device data and
documentation on the Internet:
www.products.endress.com/device-viewer
Software version Read only Current version
SD card Read only
•Total
• Free memory
Total memory and space available
System modules
Depends on the electronics
module available, e.g.:
Base
Read only
•Description
• Serial number
•Ordercode
• Hardware version
• Software version
This information is provided for every electronics module
available. Specify the serial numbers and order codes when
servicing, for example.
Sensors
Depends on the sensors
connected
Read only
•Description
• Serial number
•Ordercode
• Hardware version
• Software version
This information is provided for every sensor available.
Specify the serial numbers and order codes when servicing,
for example.
Save system information
Save to SD card File name assigned
automatically (includes a time
stamp)
The information is saved on the SD card in a "sysinfo"
subfolder. The csv file can be read and edited in MS Excel for
example.
1) Provided you give the manufacturer all the information about changes to the hardware.
Diagnostics/System information
Function Options Info

Diagnostics menu
10 Endress+Hauser
• General information
Sensor identification information
The specific data that are displayed depends on what sensor is connected.
2.5 Simulation
You can simulate values at inputs and outputs for testing purposes:
• Current values at current outputs
• Measured values at inputs
• Relay contact opening or closing
Diagnostics/Simulation
Function Options Info
Current output x:y Simulation of an output current
This menu appears once for each current output.
Simulation Options
•On
•Off
Factory setting
Off
If you simulate the value at the current output, this is
indicated on the display by a simulation icon in front of the
current value.
Current 2.4 to 23.0 mA
Factory setting
4 mA
Set the desired simulation value.
Alarm relay
Relay x:y
Simulation of a relay state
This menu appears once for each relay.
Simulation Options
•On
•Off
Factory setting
Off
If you simulate the relay state, this is indicated on the display
by a simulation icon in front of the relay display.
State Options
•Low
•High
Factory setting
Low
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.
Meas. inputs Simulation of a measured value
This menu appears once for each measuring input.
Channel : parameter
Sim. main value Options
•On
•Off
Factory setting
Off
If you simulate the measured value, this is indicated on the
display by a simulation icon in front of the measured value.

Diagnostics menu
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2.6 Systemtest/Reset
Main value Depends on the sensor
Factory setting
Depends on the sensor
Set the desired simulation value.
Sim. temperature Options
•On
•Off
Factory setting
Off
If you simulate the temperature measured value, this is
indicated on the display by a simulation icon in front of the
temperature.
Temp. value -50.0 to +250.0 ˚C
(-58.0 to 482.0 ˚F)
Factory setting
20.0 ˚C (68.0 ˚F)
Set the desired simulation value.
Diagnostics/Systemtest/Reset
Function Options Info
Device reset Options
•OK
•ESC
Restart and keep all the settings
Factory default Options
•OK
•ESC
Restart with factory settings
Settings that have not been saved are lost.
Power supply Display
• Supply Voltage 1V2
• Supply Voltage 3V3
• Supply Voltage 12V5
• Supply Voltage 24V
• Temperature
Diagnostics/Simulation
Function Options Info

Troubleshooting
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3 Troubleshooting
3.1 Troubleshooting
The transmitter continuously monitors its own functions.
If a diagnostics message occurs, the display alternates between the diagnostics message and the measu-
red value in the measuring mode.
The color of the display background changes to red if a diagnostics message for error category "F" occurs.
3.2 System error messages
System error messages are the controller diagnostics messages that are output on the display or via
the current output.
1. See the Diagnostics menu for details on the error message. Follow the instructions to rectify the
problem.
2. If this does not help:
a. Using the message number shown on the display, locate the diagnostics message in the error
tables in this manual. Ignore the letters indicating the Namur error category.
b. Follow the troubleshooting instructions provided in the last column of the error tables.
3. Contact the Service Department if you cannot rectify the error yourself. Only cite the error
number.
3.2.1 Classification of diagnostics messages
More detailed information on the current diagnostics messages displayed is provided in the
DIAG/Diagnostics list menu.
In accordance with Namur specification NE 107, the diagnostics messages are characterized by:
• Message number
• Error category (letter in front of the message number)
–F= Failure. A malfunction has been detected.
The measured value of the specific channel is no longer reliable. The cause of the malfunction is
to be found in the measuring point. Any controller connected should be set to manual mode.
–M = Maintenance required. Action may have to be taken soon.
The device stills measures correctly. Immediate measures must not be taken. However, proper
maintenance efforts would prevent a possible malfunction in the future.
–C = Function check. (No error)
Maintenance work is being performed on the device. Wait until the work has been completed.
–S = Out of specification. The measuring point is being operated outside specifications.
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.

Troubleshooting
Endress+Hauser 13
3.2.2 Adjusting the device behavior
All the diagnostics messages are assigned to specific error categories at the factory. Since other settings
might be preferred depending on the application, error categories and the effect errors have on the
measuring point can be configured individually. Furthermore, every diagnostics message can be
disabled.
Example
The controller returns diagnostics message 531 "Logbook full". You want to change this message so that
an error is not indicated on the display for example.
1. Go to:
– Menu/Setup/General settings/Diagnostics/Device behavior
for device-specific diagnostics messages (as in this example)
– Menu/Setup/Inputs/../Diagnostics settings/Diag. behavior
for sensor-specific diagnostics messages.
2. Select the diagnostics message and press the navigator button.
3. Decide:
a. Should the message be deactivated?
b. Do you want to change the error category?
c. Should an error current be output?
d. Do you want to trigger a cleaning program?
4. Deactivate the message, for example (Diagnostics message to "Off").
Configuration options
This branch, along with the same functions, can be found in different "Extended setup" menus.
The list of diagnostic messages displayed depends on the path selected. There are device-specific
messages, and messages that depend on what sensor is connected.
Path: ... /Extended setup/Diagnostics settings/Diag. behavior
Function Options Info
List of diagnostic messages Select the message to be changed. Only then can you make
the settings for this message.
Diag. code Read only
Diagnostic message Options
•On
•Off
Factory setting
Depends on the message
You can deactivate or reactivate a diagnostics message here.
Deactivating means:
• No error message in the measuring mode
• No error current at the current output
Error current Options
•On
•Off
Factory setting
Depends on the message
Decide whether an error current should be output at the
current output if the diagnostic message display is activated.

Troubleshooting
14 Endress+Hauser
3.2.3 Device-specific, general diagnostics messages
Status signal Options
• Maintenance (M)
• Out of specification (S)
• Function check (C)
• Failure (F)
Factory setting
Depends on the message
The messages are divided into different error categories in
accordance with NAMUR NE 107.
--> BA445C "Maintenance & diagnostics"
Diag. output Options
•None
• Alarm relay
• Relay 1 to n (depends on
the device version)
Factory setting
None
You can use this function to select an output to which the
diagnostic message should be assigned.
You first have to configure a relay output before being able to
assign the message to an output (Menu/Setup/Outputs,
assign "Diagnostics" function and set Operating mode to "as
assigned").
An alarm relay is always available, regardless of the device version. Other relays are optional.
Cleaning program Options
•None
• Cleaning 1
• Cleaning 2
• Cleaning 3
• Cleaning 4
Factory setting
None
Decide whether the diagnostic message should trigger a
cleaning program.
You can define the cleaning programs under:
Menu/Setup/Additional functions/Cleaning.
Detail information Read only Here you can find more information on the diagnostic
message and instructions on how to resolve the problem.
No. Message Factory settings Tests or remedial measures
Cat. Diag.
on/off
Error
current
202 Selftest active C On Off Wait for self-test to be finished
215 Simul. active C On Off Simulation active
216 Hold active C On Off Output values and status of the channel are on hold
241 Internal error F On On Internal device error
1. Update the software
2. Contact the Service Department
3. Replace the backplane (E+H Service)
242 Software incomp. F On On
243 Internal error F On On
261 Electr. module F On On Electronics module defective
1. Replace the module
2. Contact the Service Department
Path: ... /Extended setup/Diagnostics settings/Diag. behavior
Function Options Info

Troubleshooting
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262 Module connect. F On On Electronics module not communicating
1. Check the module, replace it if necessary
2. Contact the Service Department
263 Electr. module F On On Wrong kind of electronics module
1. Replace the module
2. Contact the Service Department
284 Firmware update M On Off Update completed successfully
285 Update error F On On Firmware update failed
1. Repeat update
2. SD card error --> use another card
3. Incorrect firmware --> repeat with suitable
firmware
4. Contact the Service Department
302 Battery low M On Off Buffer battery of real time clock is low
The date and time are lost if the power is interrupted.
--> Contact the Service Department (battery
replacement)
304 Module data F On On At least 1 module has incorrect configuration data
1. Check the system information
2. Contact the Service Department
305 Power consum. F On On Total power consumption too high
1. Check installation
2. Remove sensors/modules
306 Software 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
371 Intern Voltage F On On
373 Electr. temp. M On Off High electronics temperature
--> Check ambient temperature and energy
consumption
374 Sensor check F On Off No measurement signal from sensor
1. Check sensor connection
2. Check sensor, replace if necessary
401 Reset to default F On On Factory reset is performed
406 Param. active C On Off --> Wait for configuration to be finished
407 Diag. active C Off Off --> Wait for maintenance to be finished
412 Writing backup M On Off --> Wait for the write process to be finished
413 Reading backup C On Off --> Wait
No. Message Factory settings Tests or remedial measures
Cat. Diag.
on/off
Error
current

Troubleshooting
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460 Curr. under-run F On On Reasons
• Sensor in air
• Air pockets in assembly
•Sensorfouled
• Incorrect flow to sensor
Measures
1. Check sensor installation
2. Clean sensor
3. Adjust assignment of current outputs
461 Current overrun F On On
502 No text catalog F On On --> Contact the Service Department
503 Language change M On Off Language change failed
--> Contact the Service Department
530 Logbook at 80% M On Off 1. Save the logbook to the SD card and then delete
the logbook in the device
2. Set memory to ring memory
3. Deactivate logbook
531 Logbook full M On Off
532 License error M On Off --> Contact the Service Department
910 Limit switch S On Off Limit switch activated
963 Parameter save M On Off Configuration saving has failed, --> repeat
965 Parameter load M On Off Configuration successfully loaded
966 Parameter load M On Off Configuration loading has failed, --> repeat
967 Parameter load M On Off Configuration loading aborted
969 Parameter reset M On Off Factory default successful
971 Parameter reset M On Off Factory default failed
972 Input > 20 mA M On Off Current output range exceeded
973 Input < 4 mA M On Off Current output range undershot
974 Diag. confirmed C Off Off User has acknowledged the message displayed in the
measuring menu.
990 Deviation limit F On On Redundancy: limit value of percentage deviation
exceeded
991 CO2 conc. range F On On CO2concentration (degassed conductivity) outside
the measuring range
992 pH calc range F On On pH calculation outside the measuring range
993 rH calc range F On On rH calculation outside the measuring range
994 Dual cond range F On On Dual conductivity outside the measuring range
No. Message Factory settings Tests or remedial measures
Cat. Diag.
on/off
Error
current

Troubleshooting
Endress+Hauser 17
3.2.4 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 ... Chlorine
No. Message Factory settings Sensor type Tests or remedial measures
Cat. Diag. Error
curren
t
002 Sensor unknown F On On All Replace sensor
004 Sensor problem F On On All
005 Sensor data F On On All
010 Sensor init. F On On All Wait for initialization to be finished
012 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
used
018 Sensor not ready F On On All Sensor communication blocked
1. Sensor fails tag check. Replace.
2. Internal software error. Contact Service
Department
022 Temp. sensor F On On P, C, O, I, Cl Temperature sensor defective
Replace sensor
061 Sensor electr. F On On All Sensor electronics defective
Replace sensor
062 Sensor connect. F On On All 1. Check sensor connection
2. Contact the Service Department
081 Initialization F On On All Wait for initialization to be finished

Troubleshooting
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100 Sensor comm. F On On All Sensor not communicating
1. Check sensor connection
2. Check sensor plug
3. Contact the Service Department
101 F On On All 1. Replace sensor
2. Contact the Service Department
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, O Specified number of sterilizations will soon be
reached. 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
114 Temp.offset high M On Off All except U Calibration alarm: Limit values for temperature
offset exceeded
1. Check temperature sensor
2. Replace sensor
115 Temp. offset low M On Off All except U
116 Temp. Calib M On Off All except U Calibration alarm: Limit values for temperature
slope exceeded
Sensor old or defective
1. Repeat calibration
2. Replace sensor
117 Temp. slope low M On Off All except U
No. Message Factory settings Sensor type Tests or remedial measures
Cat. Diag. Error
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Troubleshooting
Endress+Hauser 19
118 Sensor glass F On On P (glass) Glass breakage warning, impedance of pH glass
too low
Measuring can continue until the alarm (118)
occurs.
1. Inspect sensor for hair-line cracks and
breakage
2. Check medium temperature
3. Replace sensor
119 Sensor glass M On Off P (glass)
120 Sensor reference F On On P (glass) Reference warning, impedance of reference too
low
Measuring can continue until the alarm (120)
occurs
1. Check reference for clogging/contamination
2. Clean reference/junction
3. Replace sensor
121 Sensor reference M On Off P (glass)
122 Sensor glass F On On P (glass) Impedance limit values exceeded/undershot
Measuring can continue until the alarm (122,
124) occurs.
1. Inspect sensor for hair-line cracks and
breakage
2. Check limit values and change where
necessary
3. Replace sensor
123 Sensor glass F 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 condi-
tion
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) ISFET leak current alarm
Defective due to gate abrasion or damage
Replace sensor
129 Sensor leakage F On Off P (ISFET) ISFET leak current warning
Measuring can continue until the alarm occurs
130 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.) Limit values for sensor relaxation time (fluores-
cence decay time) exceeded/undershot
Reasons: high oxygen content, incorrect
calibration
1. Repeat calibration
2. Replace sensor cap
3. Replace sensor
132 Sensor calib. M On Off O (opt.)
No. Message Factory settings Sensor type Tests or remedial measures
Cat. Diag. Error
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Troubleshooting
20 Endress+Hauser
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 still take
place.
1. Replace sensor cap
2. Contact the Service Department
135 Sensor check F On On O Temperature outside specification
1. Check process
2. Check installation
136 Sensor check F On On O
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 high
conductivity levels.
Use a sensor with a larger cell constant
142 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 On C Sensor self-test error
1. Replace sensor
2. Contact the Service Department
144 Cond. out of rng F On On C Conductivity outside the measuring range
Use a sensor with a suitable cell constant
146 Sensor temp. S On 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 high
Reasons: 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
No. Message Factory settings Sensor type Tests or remedial measures
Cat. Diag. Error
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