EL3000 CONTINUOUS GAS ANALYZERS | OI/EL3000-EN REV. D 195
Calibration of pressure sensor
If the reading of the built-in pressure sensor differs from the
actual air pressure, the pressure sensor can be recalibrated.
Note
• When measuring non-flammable sample gases, the pressure
sensor can be connected to the sample gas output line via an
external T-piece. In this case, when calibrating the pressure
sensor, the sample gas flow must be interrupted so that the
sample gas pressure does not falsify the pressure reading.
• After calibration of the pressure sensor, zero point and final
point must be checked and recalibrated if necessary.
• The pressure sensor cannot be calibrated while an automatic
calibration is in progress.
Calibrating the pressure sensor
1. Select the ‘Air pressure’ menu item.
2. Set the pressure set point.
3. Start adjustment.
4. Calibration in progress.
5. Press OK to return to the display of measured value.
Status Signal
While calibrating the pressure sensor, the ‘Function check’ status
signal is active, see Status Signals on page 166.
Device test
Menu Path
‘ Maintenance / Diagnosis / Test Functions /
Device Test’
Figure 109: Menu ‘Device Test’
Display Test
Figure 110: Display test
Test:
On the indicator, a gray level field runs horizontally from right
to left over which a text box moves.
The display test is terminated by pressing any button.
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