Nuvair Open Voyager II, User Manual

Page: 23 / 48

Voyager II & Open Voyager II Nitrox System
Nuvair
Page
23 www.nuvair.com
14.3 Oxygen Analyzer Calibration
Gas production may be monitored with the Permeate Oxygen Analyzer before entering the HP
Compressor to obtain a rough estimate of %O
2
(+/- 2%); however, do not rely on this reading as an
indication of %O
2
at the HP Compressor outlet. Prior to pumping Nitrox into a Scuba cylinder or
Surface Supply System, it must be monitored with the Fill Oxygen Analyzer to obtain a precise
measurement of %O
2
(+/- 1%). Both Oxygen Analyzers must be calibrated prior to each use.
Oxygen Analyzers must be calibrated before each use. See Oxygen Analyzer manuals for
correct calibration procedures. Improper calibration of the Fill Oxygen Analyzer may result in
the use of incorrect Nitrox mixtures, which may cause serious injury or death to the diver
using the gas mixture.
At altitudes above sea level, a correction factor must be used when calibrating the Fill Oxygen
Analyzer may not be achievable. See Fill Oxygen Analyzer manual for correcting analyzer
readings at various altitudes. Improper calibration of the Fill Oxygen Analyzer may result in
the use of incorrect Nitrox mixtures, which may cause serious injury or death to the diver
using the gas mixture.
The Permeate Oxygen Analyzer supplies oxygen readings that can vary +/- 2% O
2
due to heat,
humidity, and pressure changes experienced in the Nitrox flow and therefore should only be
used for rough estimates of %O
2
. The Fill Oxygen Analyzer supplies more accurate oxygen
readings, /- 1% O
2
. For Scuba cylinder Nitrox fills, the user must always verify the final
fill with a third independent Oxygen Analyzer.
Calibration Knob
Permeate Oxygen Analyzer
Provides Rough Reading
Fill Oxygen Analyzer
Provides Precise Reading