Pro CO
2
TM
Carbon Dioxide Analyzer
NUVAIR Rev.02.14.12
Page
6
Pro CO
2
Carbon Monoxide Analyzer Manual
2.1. Controls
2.2. Display
2.3. Alarm
The Analyzer includes an audible alarm that is activated when the Sensor reaches 199 ppm
CO
2
or user programmed level. The alarm will not clear until the concentration of CO
2
drops
below user programmed level.
2.4. Sensor
The Analyzer uses an NDIR “non-dispersive infra red” CO
2
Sensor to measure CO
2
content in
gases. The Sensor is disposable and user-replaceable, with a life expectancy of up to 24
months depending on usage. The Sensor is designed for use at atmospheric pressure (0 P.S.I.).
The gas mixture to be analyzed must be regulated accordingly, and any potential for pressure or
vacuum must be avoided.
2.5. Batteries
One 9-volt battery provides power. The battery is located inside the Analyzer and is user-
replaceable. The battery should be removed any time the Analyzer will be stored without use
for extended periods of time. Screen will blink alternately from “000” to “bAt” at start up when
battery is low. We also offer a 110/230v electric option.
Digital
Display
On/Off Button
Low Battery
Indication
Adjust Button
“Cal” on older
models
Relay
Output
Program Button
CarbonDioxide
Reading
0 – 2000 ppm
In 1 ppm
increments
