Low Rinse-Aid Sensor - Jenn-Air JDB9600AW Technical Education

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Low rinse-aid sensor

The optical low rinse-aid sensor consists of a transmitter diode and
a photo transistor.
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.
1 Receiver diode
2 Prism
3 Transmitter diode
1 Receiver diode
2 Prism
If the dispenser is empty, the light beam in the prism is reflected.
The received signal is the same as the transmitted signal.
The received signal is analysed and displayed via the power
electronics.
3 Transmitter diode