Endress+Hauser Levelflex M FMP40, Operating Instructions Manual

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Levelflex M FMP40 with HART/4...20 mA Maintenance
Hauser 61
7 Maintenance
The Levelflex M measuring device requires no special maintenance.
7.1 Exterior cleaning
When exterior-cleaning the Levelflex M, always use cleaning agents that do not attack the surface
of the housing and the seals.
7.2 Repairs
The Hauser repair concept assumes that the measuring devices have a modular design and
that customers are able to undertake repairs themselves (see Chap. 9.4 "Spare Parts" Page 72).
Please contact Hauser Service for further information on service and spare parts.
7.3 Repairs to Ex-approved devices
When carrying out repairs to Ex-approved devices, please note the following:
• Repairs to Ex-approved devices may only be carried out by trained personnel or by
Hauser Service.
• Comply with the prevailing standards, national Ex-area regulations, safety instructions (XA) and
certificates.
• Only use genuine spare parts from Hauser.
• When ordering a spare part, please note the device designation on the nameplate. Only replace
parts with identical parts.
• Carry out repairs according to the instructions. On completion of repairs, carry out the specified
routine test on the device.
• Only Hauser Service may convert a certified device into a different certified version.
• Document all repair work and conversions.
7.4 Replacement
After a complete Levelflex M or electronic module has been replaced, the parameters can be
downloaded into the device again via the communication interface. As a prerequisite, the data have
to have been uploaded to the PC beforehand using FieldCare.
Measurement can continue without having to carry out a new calibration.
• You may have to activate linearization (see BA366F – "Description of Device Functions" on the
enclosed CD-ROM.)
• New interference echo suppression (see Basic Setup)
After a probe or the electronics have been replaced, a new calibration must be carried out. This is
described in the repair instructions.