Pavone Systems MC 315 Series, Техническое руководство

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AN EXAMPLE OF CONFIGURATION/CALIBRATION
Theoretical Full Scale calibration of the MC 315 is performed by setting up the above parameters. This
procedure must be completed with zero point calibration as described below. The procedure ensures
good system accuracy if no mechanical issues exist (max. error <1% F.S.).
When the rESOLU selection is modified, full-scale calibration is automatically recalculated. No selections
incompatible with the calibration parameters or with the saved calibration are accepted.
A tank needs to be weighed. Its empty weight is 750 kg and its capacity is 1,000lt. It contains a product
with a specific gravity of 1.3 kg/ dm3 whose weight is to be read with a 0.2 kg display resolution.
Before starting configuration, ensure that the load cells are duly connected with the unit and that the
tank is empty. Then set the parameters.
Use:
No. 3 load cells with a 1000 Kg capacity
Sensitivity: 2.0015, 2.0008, and 1.9998 mV/V respectively (mean value= 2.0007 mV/V)
Select the following values for the configuration parameters:
L.C. CAP = 3000
L.C. SEn = 2.0007
SySt.FS = 1500
dEAd L. = 0
rESoLU = 0.2
Ensure that the value displayed in the SIGNAL parameter of the TEST menu matches with the tare of
the system according to the following proportion:
3000 : 2.0007 = 750 : X
where X is the signal’s value in mV/V corresponding to the theoretical value of the empty tank’s weight.
The value should be approximately 0.5 mV/V.
You can now proceed with calibration as described in the section below, or exit the configuration menu
while saving the entered data.
The unit should display the value corresponding to the weight of the empty tank (e.g. 756.8).
You can now access the configuration menu again to enter the value of weight read in the dEAd L
parameter and enter the value 756.8.
Exit the configuration menu again while saving the data.
For more accuracy, place sample weights or some pre-weighed material on a certified scale and cali-
brate as described in the next section.
EXITING THE CALIBRATION MENU
To exit the CAL Ib menu, press the
PRG
key until StorE? appears.
Press the key to store the new calibration and exit the set-up menu.