Liquisys M CCM223/253 Repair
Endress+Hauser 107
10.4 Replacing the central module
Generally, when a central module has been replaced, all data which can be changed
are set to the factory setting.
If possible, note the customized settings of the device, such as:
• Calibration data
• Current assignment, main parameter and temperature
• Relay function selections
• Limit value/controller settings
• Cleaning settings
• Monitoring functions
• Interface parameters
Proceed as described below if a central module is replaced:
1. Disassemble the device as explained in the "Dismantling the panel-mounted
instrument" or "Dismantling the field instrument" section.
2. Use the part number on the central module to check whether the new module has
the same part number as the previous module.
3. Reassemble the device with the new module.
4. Put the device back into operation and check the basic functions (e.g. measured value
and temperature display, operation via keyboard).
5. Read the serial number (“ser-no.”) off the nameplate of the device (e.g.
6A345605G00) and enter this number in fields E115 (1st digit = year, one-digit (6
in the example)), E116 (2nd digit: month, one-digit (A in the example)), E117 (digits
3-6 cons. number, four-digit (3456 in the example)).
In the field E118, the complete number is displayed again so you can check it is
correct.
You can only enter the serial number for new modules with the serial number 0000.
This can only be done once! For this reason, make sure the number entered is correct
before you press ENTER to confirm!
If an incorrect code is entered, the additional functions are not enabled. An incorrect
serial number can only be corrected at the factory!
1. Press ENTER to confirm the serial number or cancel the entry to enter the number
again.
2. If available, enter the release codes for the Plus Package and/or Chemoclean in the
"Service" menu.
3. Check the Plus Package release (e.g. by opening the function group CHECK / Code P)
or the Chemoclean function.
4. Make the customized device settings again.
10.5 Return
The product must be returned if repairs or a factory calibration are required, or if the
wrong product was ordered or delivered. As an ISO-certified company and also due to legal
regulations, Endress+Hauser is obliged to follow certain procedures when handling any
returned products that have been in contact with medium.
To ensure swift, safe and professional device returns, please read the return procedures
and conditions at www.endress.com/support/return-material.
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