Testing the speed sensor

General

Testing the speed sensor
  • Check the position of the magnet and sensor.
  • Here, a maximum distance of 4 mm between sensor tip and magnet should not be exceeded. In addition to this, the magnet and sensor should be aligned at right angles and in a line.
    --> If the components are correctly positioned, you can disconnect the sensor from the instrument
  • Set the multimeter to continuity test and hold both wires of the sensor to the measuring tips. Now hold a magnet in front of the sensor tip.
    --> The multimeter should now indicate continuity (resistance towards zero). 
  • Then carry out the counter test and check the continuity without the magnet.
    --> No continuity should be indicated here (resistance towards infinity).
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