Graco 127650, Инструкция по эксплуатации

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14 M0303
EN
K CALIBRATION
K1 WHY CALIBRATE?
NOTICE When working in extreme operating or flow conditions, (close
to minimum or maximum acceptable range values), it may be
a good idea to calibrate in the field, in the real conditions in
which the meter has to work..
K2 DEFINITIONS
CALIBRATION FAC-
TOR OR
“K FACTOR”
Multiplication factor applied by the system to the electrical pulses received, to
transform these into measured fluid unit .
FACTORY K
FACTOR
Factory-set default factor. It is equal to 1,000. This calibration factor ensures ut-
most precision in the following operating conditions:
Fluid water/urea solution
Temperature: 20°C
Flow rate: 15 - 45 ltr/min - 4-12 gpm
Even after any changes have been made by the user, the factory k factor can be
restored by means of a simple procedure.
USER K FACTOR: Customized calibration factor, meaning modified y calibration.
K3 KEY
LEGEND CALIBRATE MEANS PERFORMING ACTIONS ON THE METER KEYS. BELOW IS THE
LEGEND OF THE SYMBOLS USED TO DESCRIBE THE ACTIONS TO BE PERFORMED
SHORT
PRES-
SURE OF
CAL KEY
CAL
LONG
PRESSURE
OF cal
KEY
CAL CAL CAL
short
pressure
of reset
key
RESET
long
pressure
of reset
key
RESET RESET RESET
K4 CALIBRATION MODE
Why calibrate? 1 Display the currently used calibration factor:
2 Return to factory calibration (Factory K Factor) after a previous cali-
bration by the user
3 Change the calibration factor using one of the two previously indi-
cated 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
diff erent 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
NOTE The meter features a non-volatile memory that keeps the
data concerning calibration 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.