Kessel SonicControl Anleitung Für Einbau, Bedienung Und Wartung Seite 50

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4. Electrical connection
a Enter key/OK key
b Pilot lamp indicating readiness for operation
c Pilot lamp for malfunction message
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d Alarm key
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3 e Movement keys / direction keys
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f Back key/ESC key
g Display
h Mains power supply cable
i USB-Slot
j Connecting socket for potential-free
k Modem connection
l Connection for ultrasonic sensor
for moving through the program menu
switch contact / external signal generator
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