Hauber Elektronik HE205 Series, Manual

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HAUBER-Elektronik GmbH
25
18 Maintenance and repair
18.1 General notes
Repair and cleaning work on vibration monitoring units may only be performed
by an authorised specialist familiar with the safety regulations governing
handling electrical components.
Before repair and cleaning disconnect the monitoring unit from the power
supply! Separate plug connections must always be de-energized!
Immediately replace defective connection cables!
A defective vibration monitoring unit must be completely replaced!
The vibration monitoring unit HE205 is maintenance-free!
18.2 Troubleshooting Table
Fault Cause Action
No measured
value
(4-20 mA)
No power supply
Check power source and/or supply
Discontinuity in connecting cable Replace connecting cable
Fuse defective Replace fuse
Connection has incorrect polarity Connection of correct pole
Vibration monitoring unit faulty
Vibration Monitoring Unit
replace
Switching
contact doesn't
switch Wrong limit value set Set correct limit value
No power supply Check power source and/or supply
Discontinuity in connection Replace connecting cable
Fuse defective Replace fuse
Connection has incorrect polarity Connection of correct pole
Defective monitoring unit Replace monitoring unit
Incorrect
Reading
Vibration monitoring unit not
mounted in a friction-locked
manner
Mount vibration monitoring unit in a
friction-locked manner
Vibration monitoring unit installed
in wrong place
Install vibration monitoring unit in
correct place
EMC problems
See also Alternative earthing concept,
page 24.
Tab. 7: Troubleshooting Table