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7 Installation
7.1.8
Detection of pollution degree
Using detection of the pollution degree, the user can be notified of any deposits or adhesions that build
up in order to initiate further maintenance measures in good time. The function signals whether pollution
has been detected depending on the set trigger threshold (low, medium, high). In this case, "low" rep-
resents a low level of adhesions.
7.1.9
Auto-calibration
The capacitive level switch calibrates independently and continuously using the auto-calibration func-
tionality.
While the auto-calibration routine is being carried out, the output signals remain in the state they were in
before it was carried out. The routine takes 15 ms.
The operator must take this time for positioning the level switch into account during the design, especially
in the case of overfill safeguards, to prevent the plant from overflowing or running dry, for example.
If the auto-calibration function is faulty, the sensor switches to the safe operating state and the status
display turns red. The safe operating state is defined as the opposite signal to the original state at a
switching point. Both outputs open when configuring two switching points (for example, anti-valent elec-
trical circuit).
chapter 6 "Electrical connection", Page 22
An error status is transmitted when using digital transmission with IO-Link.
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