Maintenance - Endress+Hauser Fieldbus Levelflex M FMP43 Operating Instructions Manual

Levelflex M FMP43 with FOUNDATION Fieldbus
Endress+Hauser
7

Maintenance

The Levelflex M measuring device requires no special maintenance.
Exterior cleaning
When cleaning the Levelflex M, always use cleaning agents that do not attack the surface of the
housing and the seals.
Repair
The Endress+Hauser repair concept assumes that the measuring devices have a modular design and
that customers are able to undertake repairs themselves. Spare parts are contained in suitable kits.
They contain the related replacement instructions. All the spare parts kits which you can order from
Endress+Hauser for repairs to the Levelflex M are listed with their order numbers on → ä 86 and
88. Please contact Endress+Hauser Service for further information on service and spare parts.
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
Endress+Hauser Service.
• Comply with the prevailing standards, national Ex-area regulations, safety instructions (XA) and
certificates.
• Only use genuine spare parts from Endress+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
individual test on the device.
• Only Endress+Hauser Service may convert a certified device into a different certified version.
• Document all repair work and conversions.
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. To do so, the data have to have
been uploaded to the PC beforehand using the ToF Tool.
Measurement can continue without having to carry out a new calibration.
• You may have to activate linearization (see BA245F – "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.
Maintenance
77