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Operating
6.2 Operation with potentiometer
Switchpoint setting - Interface detection
Typical interface application
•
•
1. Immerse probe in liquid A or in foam which should NOT be detected.
Ensure that liquid A or foam (which should NOT be detected) is covering the probe.
Liquid A or foam must have a lower dielectric constant than liquid B, which should be
detected.
①
②
2. Set switchpoint with potentiometer.
Note: 1 second after stopping to turn the potentiometer, the yellow LED blinks for a few
times, then stops blinking. This allows to identify the position of the potentiometer which
enables more easy service in case external technicians are contacted.
If LED white is off, turn clockwise until LED white is on.
Turn counter clockwise until LED white stops glowing.
The stated values assume that the distance of the probe to a metal wall is not smaller than
stated here Probe mounting distances - liquids (Page 17) and Probe mounting distances -
solids (Page 20) and that the Sensguard, see Options and accessories (Page 76) , is not
used.
Depending on the application and the required switchpoint, the number of turns can vary.
The sensitivity is now set so that liquid A or foam is NOT detected.
34
Ignoring liquid A/ detecting liquid B
Ignoring foam/ detecting liquid
Liquid A or foam
Liquid B
Turn further counter clockwise per chart below:
Dielectric constant of liquid A or foam
<= 10
> 10
On site calibration
Immerse probe in liquid A or foam
Number of turns
1
1/2
SITRANS LCS100 I/O Link Version
Operating Instructions, 05/2023, A5E52382716-AA
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