WIKA OLS-C01 Mode D'emploi page 17

6. Faults
Faults
No function
Despite a change in
level, no alteration in the
display and no switching
of the output
Instrument responds
inversely
Instrument obviously does
not respond or responds
too slowly on a level
change (model OLS-C29)
CAUTION!
Physical injuries and damage to property and the
environment
If faults cannot be eliminated by means of the listed
measures, the instrument must be taken out of operation
immediately.
▶
Ensure that pressure is no longer present and protect
against accidental commissioning.
▶
Contact the manufacturer.
▶
If a return is needed, please follow the instructions
given in chapter 8.2 "Return".
WIKA operating instructions optoelectronic level switches, models OLS-C
Causes
Failure in power
supply
Glass tip dirty
Glass tip too close to
an opposite surface
Glass tip defective
Wrong switching
function (normally
open, normally closed)
Relay connections
inverted
(model OLS-C29)
Switching delay
Measures
Measure voltage, check
cable or plug connection
Clean the glass tip
(introduce service
intervals)
Increase the distance,
change the mounting
location
Exchange the glass tip
(model OLS-C29) or
return to the manufacturer
Replace instrument
Change relay
connections over
Wait for delay time
EN
17