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31076041.02 09/2015 EN/DE/FR/ES
EN
WIKA operating instructions optoelectronic level switches, models OLS-C
Switching delay and blink codes for model OLS-C29
The model OLS-C29 switch features a pre-programmed switching
delay of 1 s (optional are other times, up to 12 s), after which time the
signal relay's state changes.
This acts to suppress fast changes in the switching status, e.g. with
bubbling or wave effects in the tank. The functional check can be
carried out in-situ via the built-in LEDs.
Their blink codes are given in the following table.
Operating state
LED
Relay
Switching on
blinks 3 x
deactivated
Wetted
(sensor in the optically denser
medium)
goes on 2 x per second
activated
Dry
(sensor in the optically less
dense medium)
goes off 2 x per second
deactivated
Error
blinks 5 x per second
deactivated
6. Faults
The following table contains the most frequent causes of
faults and the necessary countermeasures.
5. Commissioning, operation / 6. Faults
