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844E Sprayer Control
Speed Step 4 - Confi rming Speed Sensor Installation
Magnetic Wheel Sensor
After your wheel or proximity sensor is installed and once the 844 console is installed and powered up, you
can test the speed sensor installation. Connect the wheel speed or proximity sensor to the sensor cable, and in
turn connect the sensor cable to the 844 console. When the connection is made, rotate the wheel on which the
magnets are installed. If using a proximity sensor, you will be sensing metal objects and not magnets. Each time a
magnet (metal object for proximity sensor) passes the sensor a red LED (orange LED for proximity sensor) on the
back of the sensor will light. The LCD display on the console will also indicate a speed as the sensor receives and
sends electronic pulses.
Radar
If you are using a radar speed sensor it should be connected to the speed sensor connector on the sensor
end cable. An adapter cable will be necessary when using most radars and are available through your TeeJet
Technologies dealer. The 844 will automatically sense if the speed sensor is a wheel speed, proximity type or
radar type sensor during calibration. The 844 is automatically adapted to most brands of radar speed sensors
provided that the appropriate adapter cable is used. If using a radar sensor, the 844 will display
rAd
during the
calibration procedure.