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10
8 Operation
In case of power failure or interruption of the operating voltage all settings remain�
Operating indicators
Current flow below the display range�
Current flow below the switch point�
Current flow corresponds to the switch point�
Current flow above the switch point�
Current flow above the display range�
Interference indicators
The display goes OFF briefly
(LEDs go off when a button is
pressed)
If the sensor is permanently locked, the active
LEDs go off briefly when a button is pressed. (→
7�5)�
After approx� 0�6 seconds the last operating status
is indicated�
All LEDs are flashing red
Automatic adjustment not successful� The switch
point is outside the measuring range�
► Check flow and mounting, if necessary repeat
adjustment (→ 7.3).
Display OFF
(no LED lights):
Operating voltage too low (< 19 V) or failed�
► Ensure correct voltage supply�
Explanation of symbols:
LED lights green
LED lights orange
LED lights red
LED flashes