TeeJet LH 1200 - Manual (Page 16)

E NCODING THE LH 1200 LH 1200 O PERATORS & F ITTING MANUAL
16 LH A GRO
WHEEL CIRCUMFERENCE WITH MAGNETS FITTED TO THE WHEEL
Step Key Procedure
1 Make a mark on the field and on the tire on the wheel with
magnets fitted.
2 Drive slowly forward until the wheel has turned 10 times.
3 Make a mark on the field again.
4 Measure the distance between the 2 marks on the field and divide
this distance with 10 the result being the effective wheel
circumference.
5 Divide the effective wheel circumference with the number of
magnets fitted to the wheel.
6 Press the wheel circumference key and an >0< appears on the left
of the display indicating that "wheel circumference" has been
selected.
7 Encode the result (from steps 1 to 5) in centimetres using the
numerical keys.
8 The encoded value is stored automatically until another wheel
circumference is encoded; press any other key to leave this
encodement.
Example:
In the following example we assume that we use a tractor with a wheel
circumference of 400 cm and 4 magnets fitted to the wheel:
Measurement shows that the effective wheel circumference = 396,6 cm.
There are 2 magnets fitted so the wheel circumference needs to be divided by 4.
396,6 / 2 = 99,15 cm
Encode this as 99.