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5.5.1 Entering the calibrated level
1 Select menu 3.2 to view the existing reading from the 0
2
analyser.
2 Using the and keys enter one of the following as applicable:
•the purity of the calibration gas,
•the purity reading from the independent analyser,
•Oxygen content of the compressed air (20.9%).
3 Press to send the calibration level to the O
2
analyser.
On successful completion of the calibration the new O
2
reading will be shown on the bottom line of
the display as shown. Return the calibration ball valve back to its original position and remove the
regulated calibration gas supply or independent analyser as applicable.
If the calibration is not successful the original reading from the analyser will be loaded. Should this occur repeat the above steps.
4 Select menu 3.1 and disable the O
2
Alarm Over-ride. When returning to the main operating menu,
“CAL” will be shown on the top line of the display. This will remain for a period of twenty minutes after
the calibration. Throughout this time period the O
2
alarm will be overridden to allow the sensor to
return to the required level.
3.2 O2 Calibration
= 4.95%
3.2 O2 Calibration
= 5.00%
3.2 O2 Calibration
Please Wait...
3.2 O2 Calibration
= 5.00%
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