Settings, Grain loss adjustment, Grain loss alarm – TeeJet LH 500 User Manual
Page 17: Ha left, Speed calibration
LH
500
C
OMBINE MONITOR OPERATORS MANUAL
S
ETTINGS
SETTINGS
GRAIN LOSS ADJUSTMENT
This function is used to adjust grain loss to an appropriate level (50% of full
signal). The procedure for grain loss adjustment is as follows:
1. Adjust the combine settings as normal.
2. Find the maximum forward speed with an acceptable grain loss level.
3. Select the sieve sensor by pressing function key 1
(pos 8. 1
st
key from the left).
4. Using the ARROW UP and ARROW DOWN keys adjust the indicator level so
that the black bar is approx. half way up the column.
5. Note the value shown at the top of the column for future reference with the
current grain type.
6. Select the straw walker sensors by pressing function key 2
(pos 8. 2
nd
key from the left).
7. Repeat steps 4 and 5 for the straw walker sensor.
Grain loss adjustment should be carried out whilst harvesting and check
each time the grain being harvested is changed.
GRAIN LOSS ALARM
Encode whether the grain loss alarm is switched on or off.
The delay before the alarm sound when excessive losses occur is encoded in
seconds (standard = 5 seconds).
HA LEFT
Encode the area of the field before work commences. This area is used for
calculating END TIME and for the area left function described on page 13).
SPEED CALIBRATION
The procedure to automatically calibrate the forward speed sensor is as follows:
Step/Key Description
1
Measure a 100 metre stretch in the field and drive to the start mark.
2
Press this key from the speed calibration menu.
A START and STOP key will be shown.
3
Press the START key and drive the 100 metre stretch.
Stop exactly at the stop mark.
The LH 500 Combine monitor counts pulses whilst the machine is
driving.
4
Press the STOP key and the calibration procedure is finished.
If the calibration value (number of pulses per 100 m) is known then this can
encoded directly.
LH
A
GRO
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