Maintenance; Exterior Cleaning; Repair; Repairs To Ex-Approved Instruments - Endress+Hauser Fieldbus Levelflex M FMP43 Operating Instructions Manual

Levelflex M FMP43 with FOUNDATION Fieldbus
Endress+Hauser
7

Maintenance

The Levelflex M measuring instrument requires no special maintenance.
7.1

Exterior cleaning

When cleaning the Levelflex M, always use cleaning agents that do not attack the surface of the
housing and the seals.
7.2

Repair

The Endress+Hauser repair concept assumes that the measuring instruments have a modular design
and that customers are able to undertake repairs themselves (see Chap. 9.4 "Spare Parts"
→ Page 86). Please contact Endress+Hauser Service for further information on service and spare
parts.
7.3

Repairs to Ex-approved instruments

When carrying out repairs to Ex-approved instruments, please note the following:
• Repairs to Ex-approved instruments 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 instrument 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 instrument.
• Only Endress+Hauser Service may convert a certified instrument 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 instrument again via the communication interface. To do so, the data have to
have been uploaded to the PC beforehand using the FieldCare.
Measurement can continue without having to carry out a new calibration.
• You may have to activate linearization (see BA245F – "Description of Instrument 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