Schele Electronic GA-S1, Руководство пользователя

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Portable analyzer 9 of 18
GA-S1
Version 2015
6. Calibration
Please carry out the calibration only outdoors, since the effluent gas can be a health risk for
every person located in a closed room.
Like in chapter 5: Control procedure you have to use calibrating gas to calibrate the analyzer. During
calibration two calibration points are set for both sensors (O
2
and CO
2
), “low” and “high”.
Sensor Point Used medium Value
O
2
Low Calibrating gas (i.e. nitrogen) 0,0%
High Fresh air 20,9%
CO
2
Low Fresh air 0,04%
High Calibrating gas (CO
2
) 5,0%
From these calibration points a linear gradient emerges which offers a reliable measurement.
For a reliable measurement, please observe the minimum warm-up time in the lower right
corner of the display until
“READY” is displayed in the lower left corner.
6.1 Calibrating the O
2
sensor with zero % - gas (nitrogen)

Open calibration menu by pressing function key F2 (CALIB)

For O
2
sensor press function key F2 (O2)

Press function key F3 (REF 0%)

Connect nitrogen (zero gas O
2
=0% N
2
=100%), see image 1 or 2

Press function key F4 (NEXT)
o
Calibration can be interrupted by pressing function key F1 (EXIT)

If the measured value is stable, save the value with function key F4 (SAVE)

To stop the calibration press function key F1 (EXIT)