TeeJet 814 Programming And Operating Manual page 6

Manual Calculation
To manually calculate the proper value for Wheel Speed Sensor pulses, you need to know the
circumference of the wheel to which the sensor is mounted. It can be measured by marking
the tire and measuring the distance covered as that mark makes one full revolution.
Then use the following formula:
, 3
Wheel
Use the Up or Down keys to adjust the value. Press the Pro key to validate the value and
advance to the next programming step.
Note: The wheel calibration should be repeated if you are changing to another wheel
diameter. If a radar calibration number is to be entered manually, the Clr key must be
pressed so that the r is displayed with the calibration number
Auto calibration
The speed sensor can be automatically calibrated by driving 300ft. The console will
automatically detect a RADAR sensor (if used).
To start the auto calibration procedure, press simultaneously on the Up and Down keys.
The display now will show :
Now you have to drive to the starting point of the 300ft distance. Push the Up key to start
counting speed pulses. Drive 300ft and press Up key again to stop the pulse counting.
Note: During the pulse counting the Speed Indication LED will be flashing.
Press the Up key when crossing the end point of the 300ft course. The number now on the
display is the number of pulses corresponding to 300ft.
To accept the value and advance to the next step press the Pro key.
A radar speed sensor will be indicated with an "r" on the display e.g.
TeeJet 814 Sprayer Monitor
×
600 # magnets on wheel
Circumfere nce in
Start auto cal
Drive300ft 176
223 puls/300ft
Drive300ft r 11
Programming and Operating Manual (V1.00)
, 3 600
=
e . g .
inches 30
×
4
=
480
Page 6 of 15