Hardi HC 6500, Instruction Book, Page: 53 / 92

7 - Menu 3 Calibration
7.11
Menu 3.5.3 Select factory calibration
This menu may have been set up by your HARDI® service center.
Selection can only be done with no water in the tank. See “Menu 3.5.4
Offset at empty MainTank” to check if empty.
The prerequisites for accuracy of the level, when selecting the factory
calibration is:
Level sprayer; When mounted to the tractor, the sprayer should be level.
Check if level by placing a level on the frame of the COMMANDER
sprayer as follows:
COMMANDER 4400: Underside of the frame.
COMMANDER 6600: Upperside of the frame (Important as frame is not
parallel).
Height of hitch point when mounted to tractor; The height of hitch
point measured from the ground should be 21.7” (550 mm). Measured
tank contents changes with the height of the sprayer at the hitch point.
In the following chart, an example of the difference in tank contents can
be seen.
μ ATTENTION! If one of the prerequisites is not fulfilled, then refer to “Menu 3.5.2 Custom calibration of Tank gauge” to
make a custom calibration of the tank gauge.
Menu 3.5.4 Offset at empty MainTank
In menu [3.5.4.1 TankGauge Offset] read out the frequency (Hz) at
empty tank. If the tank is completely empty, then press # to accept the
frequency. In case the main tank is not empty, this menu can only be
used to 3.5.4.1 TankGauge Offset correct the empty-frequency if it is
known to the user.
Height at hitch eye COMMANDER 4400 COMMANDER 6600
Actual content* 1030 gal. (3900 liter) 1585 gal. (6000 liter)
17.7” (450 mm) 1057 gal. (4000 liter) 1611 gal. (6100 liter)
19.7” (500 mm) 1043 gal. (3950 liter) 1598 gal. (6050 liter)
21.7” (550 mm)** 1030 gal. (3900 liter)*** 1585 gal. (6000 liter)***
23.6” (600 mm) 1017 gal. (3850 liter) 1572 gal. (5950 liter)
25.6” (650 mm) 1004 gal. (3800 liter) 1559 gal. (900 liter)
*known amount of water measured with a calibrated flowmeter.
**specified height.
***Displayed contents at correct hitch height.
3.5.3 Select factory calibration
>> 3.5.3.01 Custom calibration of gauge
3.5.3.02 NCM 3200 factory calibration
3.5.3.03 NCM 4400 factory calibration
3.5.3.04 NCM 6600 factory calibration
3.5.3.05 NCM 9000 factory calibration
3.5.3.06 Alpha 2500 factory calibration
3.5.3.07 Alpha 3500 factory calibration
3.5.3.08 Alpha 4100 factory calibration
3.5.3.09 Alpha 3000 factory calibration
Empty tank for automatic registration of zero-point of tank
sensor
3.5.4.1 TankGauge Offset
0
Hz
Actual frequency. Accept if empty. Or key in recorded empty-
frequency