7 - Menu 3 Calibration
44
Menu 3.5 Tank gauge
General info
This menu item is only present if the HARDI Tank Gauge is fitted. For increased accuracy it is recommended to do the flow
calibration [3.2] before proceeding.
Present accuracy is up to +/- 25 litre. This is at the widest liquid surface area in the tank. The smaller the liquid surface area,
the more accurate the readout. The accuracy is also affected of the sprayer being level. Assume the height of hitch point
measured from the ground should be 550 mm, then readout of tank contents changes with the hight of the sprayer at the
hitch point. In the schematic an example of the difference in tank contents can be seen.
Menu 3.5.1 Adjustment
The correction factor for the specific gravity of the liquid sprayed can be
set.
Default value is 1.000.
For liquid fertilisers, the specific gravity may range up to 1.3 kg/L. The
value in this case would be 1.300.
Method
1. Press to change value.
2. Use and to move cursor to the figure to be changed.
3. Change figure by pressing and .
4. Repeat until all figures are correct. Confirm setting by pressing .
Height at hitch eye COMMANDER 3200 COMMANDER 4400 COMMANDER 6600
Actual content* 2800 litre 3900 litre 6000 litre
450 mm 2900 litre 4000 litre 6100 litre
500 mm 2950 litre 3950 litre 6050 litre
550 mm** 2800 litre*** 3900 litre*** 6000 litre***
600 mm 2750 litre 3850 litre 5950 litre
650 mm 2700 litre 3800 litre 5900 litre
*known amount of water measured with a calibrated flowmeter.
**specified height.
***Displayed contents at correct hitch height.
TANK GAUGE
Adjustment
3.5.1
ADJUSTMENT
Spec. grav. X.XXX
3.5.1.1
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