4.8
Optical low rinse-aid sensor (optional)
The optical low rinse-aid sensor consists of a transmitter diode and
a receiver diode.
A light beam is transmitted from the transmitter diode to the receiver
diode via a prism. If the dispenser is full, the light beam in the prism is
scattered. The received signal is weaker than the transmitted one.
If the dispenser is empty, the light beam in the prism is reflected. The
received signal is the same as the transmitted signal.
The module evaluates the received signal and the refill indicator LED
is actuated.
A
= Transmitter
diode
B
= Receiver
diode
C
= Prism
202_58300000104305_ara_en_b – 02.11.a
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