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WIKA operating instructions models LSO.06, LSO.25
13334603.01 09/2010 GB/D/F/E
7. Configuration
GB
7. Configuration
7.1 Setting of fail-safe direction with switch S1
Switch S1 is a wire-hook switch which may be shortened by soldering or permanent
opened by cutting the switch wire.
High alarm:
- S1 open,
- Signal relay released if sensor tip is immersed
Low alarm:
- S1 closed
- Signal relay released if sensor tip is dry
Factory setting: - S1 open
Fault effect to dry/immersed
Operating status S1
Yellow LED
immersed
Yellow LED
dry
Signal relay
Immersed
sensor tip in
medium with higher
refractive index
open
H
High alarm
flashing
off
released
closed
L
Low alarm
permanent on
off
energized
Dry
sensor tip in
medium with lower
refractive index
open
H
High alarm
off
permanent on
energized
closed
L
Low alarm
off
flashing
released
Tr
ans
-
ducer
75 high
Fuse
M20 x 1.5 or
M16 x 1.5
time delay on
time delay off
time delay
Supply
Failure
Signal