11
Variation of the density factor of the product delivered
When distributing products other than water (e.g. liquid fertilis-
ers) the values read by means of the blade or turbine flow-
meter may be inaccurate, causing errors on distribution. To
overcome this problem, it is possible to modify a density factor
which acts as multiplier on the values read by the flow-meter.
N.B.: The ARAG ORION model flow-meter is unaffected by this
problem.
Density factor programming menu
This menu is accessed from the main display screen by
pressing the
key for one second.
Use the
keys to locate on menu 3.0 shown on the left.
To modify the value of the density factor, press
and use the
modification keys (in the example, the factor is 1.00 ).
Press
to confirm the value and exit or
to exit without
modifying.
Automatic density calibration
The automatic density calibration procedure is carried out as
follows:
1)
Fill the tank with a known quantity of water
2)
Reset the field data (page 14)
3)
Distribute the product (page 16)
4)
Calculate the amount of liquid distributed
5)
Press
to access the programming mode
6)
Select menu 3.0
7)
Perform the calibration
Calibration is started by pressing the
key beside the word
GAL
(fig.8).
The screen shows the amount of liquid counted by the compu-
ter (in the example 2546 litres) during the last distribution, with
the density value currently memorised.
Press the
key beside the word
rEAL
, and enter the quantity
of liquid actually delivered during the treatment: the computer
will calculate and memorise the new density factor.
Fig.9
Automatic density calibration
Fig.8
Density factor programming
menu
