Hauber 10943, Руководство по эксплуатации

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HAUBER-Elektronik GmbH
19
1 Machine earth
2 The shield of the Ex i cable is on the po-
tential of the housing via Pin 5 of M12
connector
3 Do not earth the shield
4 Evaluation unit
(measuring device, PLC, etc.)
5 Power supply
6 Hauber Ex i sensor
7 Isolating amplifier
8 Potentially explosive atmospheres of
zones 1 and 21 / 2 and 22
9 Area not at risk
15 Maintenance and repair
15.1 General notes
Repair and cleaning work on vibration monitoring units may only be performed
by an authorised specialist familiar with the safety regulations governing hand-
ling electrical components.
Replace defective cables immediately!
A defective vibration monitoring unit must be completely replaced.
The vibration monitoring unit HE100 is maintenance-free.
15.2 Fault resolution table
Fault Cause Action
No measured
value
(4-20 mA)
No voltage supply
Check voltage source and/or supply
cable
Connection cable interrupted Replace connection cable
Fuse defective Replace fuse
Connection has incorrect polarity Establish correct connection polarity
Vibration monitoring unit defective
Replace vibration control unit
Incorrect
measurement
value
Vibration monitoring unit not fric-
tion-locked.
Mount vibration monitoring unit in a fric-
tion-locked manner.
Vibration monitoring unit mounted
in wrong position.
Mount vibration monitoring unit in correct
position.
EMC prob-
lems
For further information, see chapter "Al-
ternative earthing concept
” on page 18.
Tab. 8: Fault resolution table