Piusi K900 METER 3in BSP F0049900B Инструкция онлайн [49/60] 865689

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Translated from Italian

LONG RESET KEY KEYING

K900 is informed that the calibration procedure is ﬁnished. Before doing this, make

sure the DISPLAYED factor is the ACTUAL factor

Indicated value Real value

K900 calculates the new USER K FACTOR ; this calculation could require a few sec-

onds, depending on the correction to be made.

During this operation the arrow disappears but the CAL indication remains.

If this operation is performed aer operation (5), without changing the indicated value,

the USER K FACTOR would be the same as the FACTORY K FACTOR, thus it is ig-

nored.

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

NO OPERATION

K900 stores the new calibration factor and is ready

for dispensing, applying the newly deﬁned USER K FACTOR.

I2.3 DIRECT MODIFICATION OF K FACTOR

This procedure is especially useful to correct a “mean error” obtainable on the basis of several performed

dispensing operations. If normal K900 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).