Piusi K600 - Direct Modification of K Factor

14 /20
Use, maintenance and calibration
M0147E
7
CALCAL
CAL
CAL
SHORT/LONG CAL key keying
The indicated value changes in the direction indicated by the arrow
- one unit for every short CAL key keying
- continually if the CAL key is kept pressed. The speed increase rises by keeping
the key pressed. If the desired value is exceeded, repeat the operations from
point (6).
8
RESET
RESET
RESET
LONG RESET key keying
The Meter is informed that the calibration procedure is
finished.
Before performing this operation, make sure the
INDICATED value is the same as the REAL value.
The Meter calculates the new USER K FACTOR ; this
calculation could require a few seconds, depending on the
correction to be made
ATTENTION: If this operation is performed aer action (5),
without changing the indicated value, the USER K FACTOR
would be the same as the FACTORY K FACTOR, thus it is
ignored.
Indicated value
Real value
9
NO OPERATION
At the end of the calculation, the new USER K FACTOR is shown for a few seconds,
aer which the restart cycle is repeated to finally achieve standby condition.
IMPORTANT: From now on, the indicated factor will become the calibration
factor used by the Meter and will continue to remain such even aer a baery
change
10
NO OPERATION
The Meter stores the new work calibration factor and is ready to begin dispensing,
using the USER K FACTOR that has just been calculated..
7.2.3 DIRECT MODIFICATION OF K FACTOR
If normal Meter operation shows a mean percentage error, this can be corrected by applying to the currently
used calibration factor a correction of the same percentage. In this case, the percentage correction of the
USER K FACTOR must be calculated by the operator in the following way
New cal. Factor = Old Cal Factor * ( )
100 - E%
100
EXAMPLE
Error percentage found: E% - 0.9 %
CURRENT calibration factor: 1.000
New USER K FACTOR: 1.000 * [(100 – ( - 0.9))/100] = 1.000 * [(100 + 0.9)/100] = 1.009
If the Meter indicates less than the real dispensed value (negative error) the new calibration factor must be
higher than the old one as shown in the example. The opposite applies if the Meter shows more than the
real dispensed value (positive error).
ACTION DISPLAY
1 NONE
METER in Standby.
2
CALCAL
CAL
LONG CAL KEY KEYING
Meter enters calibration mode, shows “CAL” and displays the calibration factor
being used instead of the partial. The words “Fact” and “User” indicate which of
the two factors (factory or user) is currently being used.
3
RESET
RESET
RESET
LONG RESET KEY KEYING
The Meter shows “CAL” and the zero partial total.
Meter is ready to perform in-field calibration by dispensing – see previous
paragraph.