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EN
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MC
BOX
1.5 ETL
Translated from Italian
Provides access to another submenu that offers the following
two alternative flow meter calibration methods: DIRECT
CALIBRATION and CALIBRATION BY DISPENSING
DIRECT CALIBRATION
The DIRECT calibration method allows the calibration factor (K
FACTOR) to be changed directly
This method of calibration can be used when you want to correct
the calibration factor by a known percentage in order to compen-
sate for a mean error on the basis of one or more fluid dispensing
operations
Calibraton
submenu
CALIBRATION BY DISPENSING
The DISPENSING calibration method allows the flow meter to be
calibrated by dispensing fuel into a SAMPLE CONTAINER
This calibration method is faster and more practical, and it does not call
for mathematical calculations
The calibration flow can be interrupted and resumed freely, and can be
considered to be terminated when the level is visible in the graduated
area of the sample container
To calculate the new K FACT value always start from the K FACT value
currently in use
Eg if the current calibration factor is 1.0120
(value obtained following a prior calibration because it is different from the
initial default value of 10000) and you find that:
¦ the flow meter gives a reading that is 1.5% higher than the "true" value on
average; a new K FACT value able to compensate for this mean error can be
calculated as follows: K FACT (new) = 1.0120 * [1 – (1.5/100)] = 0.9968;
¦ the flow meter gives a reading that is 0.8% lower than the "true" value on
average; a new K FACT value able to compensate for this mean error can be
calculated as follows: K FACT (new) = 1.0120 * [1 – (0.8/100)] = 1.0200.
NOTE
