Start auto cal – TeeJet 814-AB Airblast Sprayer Monitor User Manual

Page 6

814-AB Sprayer Monitor

Programming and Operating Manual US 9/98

Page 6 of 15

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:

480

600

Inches

nce

Circumfere

Wheel

MagnetsOn

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 (see below).

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 :

Start auto cal

Now you have to drive to the starting point of the 300ft distance. Push the Up key to start
counting speed pulses as you cross the start point. Drive 300ft and press the Up key again to
stop the pulse counting.

Drive300ft 176

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.

223 puls/300ft

Depress the

key to accept the value and advance to the next program step.