18
For reliable function, the sensor housing must be
electrically connected to the counter-electrode
(grounding).
►
Use the housing connection (see drawing) and
a short piece of cable with a core cross section
of min. 1.5 mm
2
.
When using metal tanks, the tank wall serves as
the machine earth.
For plastic tanks, a counter-electrode must be pro-
vided, e.g. a metal plate inside the tank in parallel
with the probe. Adhere to minimum distances to the
probe.
