Pro N
2
Alarm nitrogen Analyzer
Nuvair
Page 13
www.nuvair.com
6.0 Powering on and warming up
Before powering on the unit, ensure the sensor is exposed to a gas mixture with the 21%
oxygen. This value corresponds to 79% nitrogen and 21% oxygen in ambient air. Be sure that
air flowing across the sensor is 21% oxygen (if using the default setting)
before
turning on
the analyzer.
Press the
“On/Off”
button and hold until the display shows “
ON
”. The “
Att
” (wait) message
will then be displayed for several seconds.
Perform calibration as described in Section 4.0.
Activate the alarm function by pressing the Press the
On/Off
and
Prog
buttons at the same
time until an arrow appears on the left side of the display.
If the nitrogen percentage of the gas flowing across the sensor during calibration, a
failed calibration is obtained and the wrong gas percentage will be displayed. Wrong
nitrogen analysis may lead to death.
6.1. Powering Off
At the home or gas reading screen, hold down the
“On/Off”
button for a couple of
seconds. The Analyzer will display
“OFF”
and then go blank.