Seeking help with the speed probe
Thread Content
How to wire the AI-TEK speed probe model 70085-1010-330? For example, with three signal wires – white, black, and yellow-green – what type of signals are they?
There should be a wiring diagram. Public, power supply, signal
The description of what the colored lines corresponding to it are for should be in that blurred English text at the end of the probe in the photo.
Black and white are the signal wires, while yellow and green are connected to the chassis ground
The two wires that show resistance when measured with a multimeter are the signal sources; it shows whether the yellow-green wires are connected to the enclosure.
This is Variable Reluctance, which is what people commonly refer to as a reluctance-type speed sensor. Yellow-green is the EARTH LEAD grounding wire, while black and white are the signal wires.