CO Clear
User Manual
Int. Approved
Document ref: ACO-810-28
October 2018
Page 17 of 24
Copyright © 2006 Analox Ltd. All Rights Reserved.
Commercial in Confidence
10
Calibration
The Analox CO
Clear
should be calibrated on a regular basis to maintain measurement
accuracy. It is recommended that a calibration should be performed every six months.
All calibration gases should be sourced locally, calibration gases change depending on the
variant, calibration gases are listed below.
In order to perform a calibration check, you will need the following equipment:
10.1
0 to 10ppm in nitrogen range calibration gases
Air and Nitrox Kit (for use with Analox CO
Clear
)
1)
Zero Gas, 20.9% O2 in N2 balance
2)
Span Gas, 10ppm CO/20.9% O2 in N2 balance
3)
Control valve
0 To 10ppm in helium range calibration gases
Heliox Kit (for use with Analox CO
Clear He
)
1)
Zero Gas, 20.9% O2 in He balance
2)
Span Gas, 10ppm CO/20.9% O2 in He balance
3)
Control valve
10.2
0 to 25ppm in nitrogen range calibration gases
Air and Nitrox Kit (for use with Analox CO
Clear
)
1)
Zero Gas, 20.9% O2 in N2 balance
2)
Span Gas, 20ppm CO/20.9% O2 in N2 balance
3)
Control valve
Connecting of the gas cylinder Correct flow rate
Содержание CO Clear
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