HIQUEL GmbH Page 2
Author: Peter Reiter File: HIQUEL_AppNote_TCL_1_E_R0100.doc
Translator: Markus Rindler Date: 05.07.2004 12:56
Conductivity and not conductive liquids
conductive liquids not conductive liquids
fresh/drinking water clean water
sea water gas
glycolic water oil
coffee brake fluid
alcohol
paraffin
whiskey
Measuring conductive liquids
Measuring conductive liquids is not as easy as measuring the resistance of ohmic resistors.
The liquids are not completely ohmic and you have to avoid a material wander.
The TCL considers these problems and uses a very small ac for resistance measuring.
Function description
Level control with one fill factor
Fill
Function:
The relay (R) is active as long as the fill
factor reaches S1.
PE
S1
C
LL
NN
15
16 18
16 18
A1 15
26 28
25
A2
25
26
28
CS1S2
TCL-230Vac
P
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