Endress+Hauser Cerabar M - 10 Maintenance; 10.1 Cleaning Instructions

Maintenance Cerabar M, Deltabar M, Deltapilot M
220 Endress+Hauser
10 Maintenance
Deltabar M requires no maintenance.
For Cerabar M and Deltapilot M keep the pressure compensation and GORE-TEX
®
filter (1)
free from contamination.
A0028502
10.1 Cleaning instructions
Endress+Hauser offer flushing rings as accessories to clean process isolating diaphragms
without taking the transmitters out of the process.
For further information please contact your local Endress+Hauser Sales Center.
10.1.1 Cerabar M PMP55
We recommend you perform CIP (cleaning in place (hot water)) before SIP (sterilization in
place (steam)) for pipe diaphragm seals. A frequent use of sterilization in place (SIP) will
increase the stress on the process isolating diaphragm. Under unfavorable circumstances in
the long term view we cannot exclude that a frequent temperature change could lead to a
material fatigue of the process isolating diaphragm and possibly to a leakage.
10.2 Exterior cleaning
Please note the following points when cleaning the device:
• The cleaning agents used should not corrode the surface and the seals.
• Mechanical damage to the process isolating diaphragm, e.g. due to pointed objects, must
be avoided.
• Observe the degree of protection of the device. See the nameplate if necessary ( ä 8 ff).
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