03 flow figure – TeeJet LH 3000 User Manual
Page 10

LH 3000
OPERATING MANUAL
10
LH A
GRO
The effective wheel circumference is much dependent on tyre pressure, weigth,
ground conditions, etc. Therefore it is recommended to check the wheel
circumference frequently an write it on the supplied form for the various
implements.
Method 2:
Use this method when the speed sensor has been fitted at cardan or similar.
Here the monitor is used in normal operation (not incode mode).
1.
Measure a distance of 100 m.
2.
Drive the tractor to the “start” mark.
3.
Press “DISTANCE” for 5 seconds and the display will show 5 bars.
4.
Drive the measured 100 metres and stop exactly at the stop mark.
5.
Press “DISTANCE” again and the display shows the value to be encoded as
wheel circumference (to be encoded under SYSTEM 02).
03 FLOW FIGURE
The flow figure is number of 1/100 mm chemical through the flow meter pr
impulse. Calculation of flow figure:
Make the following calibration while the tractor is standing to avoid misreading on
the tank.
1.
Encode A “test” flow figure of:
Standard flow meter
= 2000
Low flow meter
= 1250
2.
Take in not less than 600 litres of clean water in the sprayer. (To one of the
marks).
3.
Check that the monitor’s litres counter is at 0.
4.
Spray out min. 500 litres.
OBS: Do not empty the tank, as this will disturb the measurements.
5.
Use the following formula to calculate the new flow figure:
Old flow figure X litres read on tank mark
New flow figure =
Litres displayed by monitor
OBS: for optimum accuracy when calibrating the flow meter weighing can be
recommended.