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UK
5.2.5 Probes for different tank heights
• The unit can be installed in tanks of different sizes� Probes in different lengths
are available� To adapt to the tank height, each probe can be shortened�
The minimum probe length is 10 cm, the maximum probe length is 160 cm�
• Probe and housing can be rotated without restriction� This enables easy
installation and orientation of the head of the unit after installation�
5.2.6 Safe state
• If a fault is detected or if the signal quality is below a minimum value, the
outputs pass into the "safe state"� For this case, the response of the outputs
OUT1���OUT3 can be set via the parameters [FOU1]���[FOU3]
(→ 10.5.5 Response of the outputs in case of a fault)
�
The response of the output OUT-OP (overflow prevention) is fixed: it
opens
in case of a fault�
• Temporary loss of signal (caused e�g� by turbulence or foam formation) can be
suppressed for OUT1���OUT3 by using a delay time
delay time after signal loss)� During the delay time the last measured value is
"frozen":
-If the measured signal is received again in sufficient strength within the delay
time, the unit continues to work in normal operation�
-If the measured signal is not received again in sufficient strength within the
delay time, the outputs pass into the safe state�
Also the timing of the OUT-OP output is fixed:in case of a fault, it opens
without delay
�