Sensor tester – Great Plains PM300 Assembly Instructions User Manual
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Great Plains Mfg., Inc.
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MODEL
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SERIAL
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e24
(360 CO
UNT APR)
02 0019
2010 03
1. Assemble the Sensor Tester together with the
Application Rate Sensor Adapter.
Sensor Tester -
for testing fan speed sensors on air drills.
The Sensor Tester (part # AE6602) can be used in conjunction with the Application Rate Sensor
Adapter (part # AE2607) to verify the operation of the hall effect fan speed sensor.
Note: The Seed Tube Sensor Tester operates on a 9 volt battery that is accessible through a door
in the back of the case. Make sure the battery is good before replacing a sensor.
Refer to Figure 21
2. Locate the hall effect sensor the supplies the fan speed
signal to the monitoring system. This will be the wiring
harness coming out of the screen on the fan assembly.
3. Follow the harness until it connect to the monitor harness. Disconnect the harness and
connect the assembly made in step one to the sensor lead.
4. If the sensor is still mounted in the fan assembly, any motion of the fan should cause the
sensor to create a pulse that will make the tester “beep”. If the sensor has been removed,
waving a metallic object like a screwdriver should produce the same result.
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Sensor Tester -
for testing ground speed sensors on NTA3007/907.
The Sensor Tester (part # AE6602) can be used in conjunction with the Application Rate
Sensor Adapter (part # AE2607) to verify the operation of the ground speed sensor on
NTA3007/907 air drills.
Refer to Figure 20
3. Disconnect the sensor lead from the harness and connect the assembly
made in step one to the sensor.
Note: The Seed Tube Sensor Tester operates on a 9 volt battery that is accessible through a door
in the back of the case. Make sure the battery is good before replacing a sensor.
4. This ground speed sensor will create 360 pulses per revolution of its input shaft. Every
pulse created will case the sensor tester to “beep” if the sensor is functioning properly.
1. Assemble the Seed Sensor Tester together with the
Application Rate Sensor Tester Adapter.
2
2. Locate the wiring harness coming out of the ground speed
sensor. On NTA3007/907 drills, this can be found on the
end of the small ground drive wheel on the left hand side.
Follow the lead until you find the three pin connection at
the working set master harness.
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Fig. 21
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Fig. 20
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