Liquisys M CPM223/253 Diagnostics and troubleshooting
Endress+Hauser 79
7 Diagnostics and troubleshooting
7.1 Troubleshooting instructions
The transmitter constantly monitors its functions itself. If an error occurs which the device
recognizes, this is indicated on the display. The error number is shown below the display of
the main measured value. If more than one error occurs, you can call these up with the
MINUS key.
Refer to the "System error messages" table for the possible error numbers and remedial
measures.
Should a malfunction occur without any transmitter error message, please refer to the
"Process-specific errors" or the "Device-specific errors" tables to localize and rectify the error.
These tables provide you with additional information on any spare parts required.
7.2 System error messages
You can display and select the error messages with the MINUS key.
Error
no.
Display Tests and/or remedial measures Alarm contact Error current Autom.
cleaning start
PROFIBUS
Status
Facty User Facty User Facty User pH Temp
E001 EEPROM memory error 1. Switch device off and then on again.
2. Load device software compatible
with the hardware (with optoscope,
see "Optoscope service tool" section).
3. Load measurement-parameter
specific device software.
4. If the error persists, send in the
device for repair to your local
Endress+Hauser subsidiary or
replace the device.
Yes No — —
1)
0C 0C
E002
Instrument not calibrated,
calibration data invalid, no
user data invalid
(EEPROM error),
instrument software not
suitable to hardware
(controller)
Yes No — —
1
0C 0C
E003 Download error
Invalid configuration. Repeat download,
check optoscope.
Yes No No 0C 0C
E004
Instrument software
version not compatible
with module hardware
version
Load software compatible with
hardware
Load measurement-parameter specific
device software.
Yes No No 0C 0C
E007
Transmitter malfunction,
instrument software not
compatible with
transmitter version
Yes No — —
1
0C 0C
E008
SCS alarm:
Glass electrode: glass
breakage
ISFET: leakage current >
400 nA
Check glass electrode for glass breakage
or hair-line cracks;
Inspect electrode plug-in head for
moisture and dry if necessary;
Check medium temperature.
Replace ISFET.
Yes No No 0C 80
E010
Temperature sensor
defective, not connected
or short-circuited
Check temperature sensor and
connections; check device and
measuring cable with temperature
simulator if necessary.
Check correct option selected in field
A5.
Yes No No 80 0C
E029
SCS reference electrode
warning
Error dedected during sensor self test.
Check sensor. If necessary, replace it.
Yes No — 0C 0C
E030
SCS reference electrode
warning
Check reference electrode for
contamination and damage; clean
electrode.
Yes No No 0C 80
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