13 - Testing and fine tuning
13.2
Testing speed transducer
BROWN wire to positive of 12 volt battery.
BLACK wire to negative.
BLUE wire to multimeter.
1. Connect negative from multimeter to negative of battery.
2. Set multimeter to DC volt.
3. Bring a metallic object within 1/8” to 3/16” (3 to 5 mm) from the transducer. This will register 1.4 +/- 0.2 volt and the
diode will turn on.
4. By removing the object, this will register 12.0 +/- 1.0 volt. Diode is OFF.
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