Piusi K900, Installation Manual And Use

Page: 14 / 29

41
/124
41
/56
EN
This manual is the property of PIUSI S.p.A. Any reproduction, even partial, is forbidden.
Translated from Italian
8 CALIBRATION
FOREWORD
K900 is supplied with a factory calibration that ensures precise measuring in most
operating conditions. Nevertheless, when operating close to extreme conditions, such
as for instance:
*
with fluids close to acceptable range extremes (such as low-viscosity antifreeze)
*
in extreme flow rate conditions (close to minimum or maximum acceptable values)
8.1 DEFINITIONS
Calibration fac-
tor or “K Factor”
this is the multiplication factor applied by the system to the electrical pulses received,
to transform these into measured fluid units
Factory K Factor: Factory-set default factor. It is equal to 1,000.
This calibration factor ensures utmost precision in the following operating conditions:
Fluid DIESEL (EN590)
Temperature: 20°C
Flow rate: 50-255 litres/min
Even after any changes have been made by the user, the factory K factor can be
restored by means of a simple procedure.
K900 is also compatible with HVO / XTL paraffinic: EN 15940
User K Factor Customized calibration factor, meaning modified by calibration.
8.2 CALIBRATION PROCEDURE
Why calibrate? 1 Display the currently used calibration factor:
2 Return to factory calibration (Factory K Factor) after a previous calibration by the user
3 Change the calibration factor using one of the two previously indicated procedures
FOREWORD Two procedures are available for changing the Calibration Factor:
1
In-Field Calibration, performed by means of a dispensing operation
2 Direct Calibration, performed by directly changing the calibration factor
In calibration mode, the partial and total dispensed quantities indicated on the display screen take on different
meanings according to the calibration procedure phase. In calibration mode, the meter cannot be used for normal
dispensing operations. In “Calibration” mode, the totals are not increased
ATTENTION The meter features a non-volatile memory that keeps the data concerning calibra-
tion and total dispensed quantity stored for an indefinite time, even in the case of
a long power break; after changing the batteries, calibration need not be repeated.