TeeJet LH 1000 - Manual (Page 7)

LH 1000 O PERATORS & F ITTING MANUAL E NCODING THE LH 1000
LH A GRO 7
ENCODING THE LH 1000 (FUNCTION SET 1)
There are two figures that need to be encoded before the LH 1000 can be used. It
is important that the following are accurate as these are fundamental for correct
operation of the monitor.
WORKING WIDTH
The working width of the implement being used is encoded here:
Step Key Procedure
1 Press the working width key.
2 Encode the working width in centimetres using the numerical
keys. Ensure that overlaps are accounted for. If the working width
is unknown, then drive 5 bouts and measure the distance between
the first and the last, then divide the distance by 5.
3 The encoded value is stored automatically until another working
width is encoded; press any other key to leave this encodement.
FORWARD SPEED CALIBRATION (WHEEL CIRCUMFERENCE)
To ensure that the LH 1000 can accurately measure forward speed, which is also
used for area calculation, the wheel circumference must be measured and
encoded. The procedure for this is as follows:
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.