FMT Swiss AG 23295, Руководство по эксплуатации

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Operating instructions for turbine flow meter
G
6.3 Calibration mode
The turbine flow meter has a fast and precise electronic calibration mode where you simply change the so-
called calibration factor (K FACTOR).
There are two calibration procedures you may choose from:
Simulated ope calibration (requiring actual output of liquid to be carried out).
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Direct calibration (simply changing the calibration factor).
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You may want to call up the calibration procedure for the following reasons (press the TOTAL button for
several seconds):
To display the valid calibration factor
■ ■
To reset the calibration factor pre-set at the factory (FACTORY K FACTOR) after calibration by the user
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To change the calibration factor using one of the two available calibration procedures
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During calibration, the registers on the LCD display - that normally show partial and total volumes of liquid
output - will take on new meanings.
During calibration, the meter cannot carry out normal output operation.
During calibration, the count of the absolute total volume of liquid having been output (non-resettable
total) will not increase.
Tip
The turbine flow meter is equipped with a non-volatile memory so that saved calibration data and
the total output amount will be stored for prolonged periods of time - even without power supply.
That means you don‘t have to re-calibrate after you have exchanged the batteries.
6.3.1 Displaying the valid calibration factor - resetting the factory calibration factor (if
necessary)
Go to default standby mode. Press the TOTAL button. The display shows the valid calibration factor.
Two situations are possible:
a) User never changed the calibration factor and/or user restored the factory calibration factor after
changing it: the display will show the following:
The word FACT (short for FACTORY) indicates that the valid calibration factor is the factor pre-set at the
factory.
b) If the user has changed the calibration factor, the display will show the new value
(in our example: 0.998)
The word USER indicates that the calibration factor currently used was entered by the user.