4�4 Customer-specific calibration. IFM PG2734

Factory setting Measuring range scaled

P = system pressure , MAW = initial value of the measuring range, MEW = final value of the measuring range

1 : [OU2] = [I]; 2 : [OU2] = [InEG]

In the set measuring range the output signal is between 4 and 20 mA ([OU2] = [I]) or between 20 and 4 mA ([OU2] = [InEG])�

It is also indicated:

• System pressure above the measuring range:

-Output signal 20 to 20�5 mA at [OU2] = [I]�

-Output signal 4 to 3�8 mA at [OU2] = [InEG]�

• System pressure below the measuring range:

-Output signal 4 to 3�8 mA at [OU2] = [I]�

-Output signal 20 to 20�5 mA at [OU2] = [InEG]�

4.4 Customer-specific calibration

The customer-specific calibration changes the curve of measured values compared to the real measured values (shifting / change of the gradient;

→ 9.4.6 [CAL]).

• Two calibration points can be defined (CP1, CP2)� The two points are independent of each other� They must be within the measuring range and not in the extended display range�

• The zero point calibration [COF] influences the calibration of the curve of measured values. Recommendation: set [COF] to 0 (→ 9.4.1 [COF]), then calibrate the curve of measured values�

After a change the calibration can be reset to factory setting (→ 9.5.2 [rES]).

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UK