Pavone Systems DAT11, Техническое руководство

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CONFIGURATION/CALIBRATION EXAMPLE
Set the parameters listed above to perform theoretical calibration of the Full Scale of the DAT 11. This
procedure must be completed with calibration of the zero-point as described later on. The procedure
ensures good precision of the system (maximum error <1% FS) when there are no mechanical problems.
When you change the rESOLU selection, calibration of the full-scale is automatically recalculated. Selec-
tions incompatible with the calibration parameters or with the calibration value saved in the memory
are not accepted.
A tank must be weighed, of an unladen weight of 750 Kg and capacity 1000 litres, containing a product
with specific weight 1.3 Kg/dm3 the weight of which needs to be read with a display resolution 0.2 Kg.
Before proceeding with configuration it is required to ensure the load cells are connected correctly to
the unit and the tank is empty, the parameters may then be set.
Use:
3 load cells 1000 Kg capacity
Sensitivity respectively 2.0015, 2.0008 and 1.9998 mV/V (average value = 2.0007 mV/V)
Set the following figures in configuration parameters:
L.C. CAP = 3000
L.C. SEn = 2.0007
SySt.FS = 1500
dEAd L. = 0
rESoLU = 0.2
Ensure the value read in parameter
S1GNAL
of the menu TEST corresponds to the tare weight of the
system according to the following proportion:
3000:2.0007=750:X
Where X is the value of the signal expressed in mV/V corresponding to the theoretical value of the
empty tank weight- The value should be about 0.5 mV/V
At this stage one may proceed with calibration described in the following paragraph or exit the con-
figuration menu saving the data entered.
The instrument should indicate the value corresponding to the unladen tank weight (e.g. 756.8).
It is possible to enter the configuration menu again and enter the value of the weight read in parameter
dEad L
and enter 756.8
Exit the configuration menu again after saving the data.
For greater precision arrange sample weights or pre-weighed material on a certified scale and proceed
with calibration as described in the following paragraph.