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Hall effect crankshaft or camshaft position sensor. We've tested this with our 6.75" and 8.25" trigger wheels. We were able to get a rock solid reading at over 19,200 RPM, which is as fast as our test rig could spin the trigger wheel. Runs off 5 to 24 volts, and gives a nice square wave so there's no variable voltage issues. Has a 12 inch long, 3 wire pigtail. Here's what the wires do:
Red - Supply voltage; connect to either VREF or 12 volt switched power.
White - Output signal. On a MegaSquirt, connects to pin 24. We just set our MegaSquirt up for the VR conditioner and it works great. V3.0 MicroSquirts can also do this, but older MicroSquirts will need to use the Hall effect input.
Black - Ground.
If you have the newest revision of our wiring harness, you can just tee the red wire on the sensor into the red harness wire, and the black and white wires connect to the respective black and white wires inside the sheilded RPM input wire. Red to red, black to black, white to white - simple and easy to remember.
Watch a video of the sensor in action:
Specifications
Operating voltage: 4.75 to 24 volts
Maximum overvoltage and reverse voltage: +27 to -25 volts
Maximum output current: 20 mA
Maximum frequency: 15 kHz
Temperature range: -40 to +125 degrees C
Maximum air gap: 5 mm
The dimensions on the above drawing are in mm. 3D PDF also available.
Note: We also carry a threaded body version - see this link. |
