WIKA OLS-C20, Operating Instructions Manual

Page: 12 / 68

EN
31076041.03 08/2017 EN/DE/FR/ES
12 Operating instructions model OLS-C20
5.2 Electrical connection
The electrical connection of the switches can be found in the following
connection diagrams.
Electrical connection diagram
6. Faults
The following table contains the most frequent causes of
faults and the necessary countermeasures.
Faults Causes Measures
No function Failure in power supply Measure voltage, check
cable or plug connection
Despite a change in
level, no alteration
in the display and
no switching of the
output
Glass tip dirty Clean the glass tip
(introduce service intervals)
Glass tip too close to an
opposite surface
Increase the distance,
change the mounting
location
Glass tip defective Return to the manufacturer
Instrument responds
inversely
Wrong switching function
(normally open, normally
closed)
Replace instrument
Connector assignment
brown
green
white
Output
Load
24 V
0 V
Output
24 V
0 V
5. Commissioning, operation / 6. Faults