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Manual
GA12
Therefore, the calibration procedure can be taken only as the last resort! Be sure
you are familiarised with the procedure and you have suitable equipped required for pres-
sure calibration.
To perform the pressure calibration the precise reference pressure sensor is re-
quired.
Drawing 34.
Pressure calibration screen.
The pressure calibration screen contains a table with the values:
Measured – current values of signal (uV) and pressure (Pa)
Stored – values of signal and pressure from the last pressure calibration
Below the table there is a reference pressure value. Press
Change
function key
to enter the reference pressure (measured with the precise, reference pressure sensor)
Follow the steps below to proceed with the calibration:
1. Enter the value of the reference pressure.
2. Supply the reference pressure to the analyser pressure inlet – wait until the
signals in columns Signal and Pa are stable.
3. Confirm the calibration by pressing OK function key.
3.3.7. Print?
Drawing 35.
Print? screen
26
