Microsensor MPM489W, Руководство по эксплуатации

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unobstructed and prevent mud and sand stopping up the
reference tube, especially water or other liquid. Otherwise, the
transmitter would be destroyed.
c) If the transmitter is mounted under thunder-lightning situation, we
suggest having an additional lightning-arrester in the cables.
7 Operation, Maintenance and Fault Diagnosis
7.1 Operation
The customer could operate the transmitter without adjustment.
Please be sure that the installation and electrical connection are correct
or not before operation.
Connect the excitation and operate.
The transmitter could work at once as soon as it is connected with
excitation, but the output signal could be more reliable after 30 minutes.
7.2 Maintenance
MPM489W level transmitter does not need to be maintained regularly,
but please pay attention to items as follow for better operating effect and
reliability.
a) Check wire connection is reliable or not, and the cable is broken
and old or not.
b) Clean the protection cap and diaphragm cavity periodically.
(take care!)
c) Don’t violently pull cables or poke the diaphragm with metal or