RPM sensor, hall effect, includes magnets

Hall effect RPM Sensor. Includes two small ceramic discs magnets. Registers pulse counts off of a magnet to measure rotational speed for wind turbine testing. Short pigtail leads attached.

Usage with Wind Data Logger

The RPM sensor can be connected to one of the anemometer channels as you would with a normal anemometer.

Your calibration values values for calculating RPM and total daily revolutions would be as follows:

(n = number of magnets used)

RPM:
Anemometer m (multiplier) = 60 / n
Anemometer b (offset) = 0

Total Daily Revolutions:
Counter m (multiplier) = 1 / n
Counter b (offset) = 0

Example: If you used Anemometer Channel 2 and two magnets, you could do the following:

Main Setup Menu > Anemometer Setup > Anemometer 2

AN_M2 = +0030.0000
AN_B2 = +0000.0000
Label2 = TURBINE RPM
AN2_UNIT = RPM


Main Setup Menu > Counter Setup > Counter 2

CNT_M2 = +0000.5000
CNT_B2 = +0000.0000
Label2 = TOTAL REVS
CNT2_UNIT = CNT