IM-P693-06 EMM Issue 1
15
LCS3050 Low Water Level Switch for two probes
5.3 Operation
Level probe 1
Test and diagnosis button
Level probe 2
Test and diagnosis button
LED alarm 1 /operating mode LED alarm 2 /operating mode
Diagnosis LED
Fig. 12
Operation
Activity Indication Function
Level probe(s) submerged.
Green LEDs for level probe 1/2
illuminated.
Output contacts are closed. Signal
outputs 1/2 open.
Alarm
Level probe(s) exposed, level below
low water level (LW).
Red LEDs for level probe 1/2 are
flashing.
De-energizing delay is running.
Signal outputs 1/2 are closed
instantaneously.
Red LEDs for level probe 1/2
illuminated.
Delay time has elapsed, output
contacts open. Signal outputs 1/2 are
closed.
Test channel 1 and 2
During operation:
Press key 1 or 2 and hold it down until
the end of the test, level switch must
react as if there was an alarm.
Red LEDs for level probe 1/2 are
flashing.
Alarm simulated in channel 1 or 2.
De-energizing delay is running.
Signal outputs 1/2 are closed
instantaneously.
Red LEDs for level probe 1/2
illuminated.
Delay time has elapsed, output
contacts open. Signal outputs 1/2 are
closed.
Test finished.
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