Features
- Suitable for remote sampling to 100 feet
- No maintenance Zirconium cell
- No calibration required
- 3 year warranty
- No drift to environmental or temperature changes
- 10 + year Sensor life
- Local display
- 4-20 mA analog output.
- Built-in flow sample pump
- Built-in user adjustable alarms & relays
- Optional built-in audio horn
The Air check O2 Deficiency Monitor is a compact sample draw gas monitoring system that’s ideal
for the continuous monitoring of inert gas storage areas, confined spaces, and other locations where
low oxygen levels may pose a hazard to personnel. Unlike electrochemical sensor cells the Air
check’s zirconium oxygen cell provides stable readings even in areas where temperature and humidity
levels are changing. The PureAire Air check O2 Deficiency Monitor is suitable for either indoor or
outdoor use.
The heart of the monitoring system is a long lasting zirconium sensor, which responds to low oxygen
conditions within seconds and provides accurate and linear concentration readings over the entire
measurement range. PureAire’s zirconium O 2 sensor cell will operate continuously for 10 or more
years and requires an absolute minimum of maintenance. There are no zero or span calibration pots to
adjust and when compared to disposable type sensors, our long life zirconium O 2 sensor can save up
to $475 annually and will pay for itself in just over 3 years!
The monitor’s built-in pump is ideal for continuously monitoring oxygen levels in remote confined
spaces or under floor areas where inert gases are used. The Air check O2 Sample Draw Monitor
does not drift or loose sensitivity when the weather or temperature changes. The electronics are
housed in a NEMA 4 general purpose wall mounted weather resistance housing.
Connects to DCS and PLC Controls
The Air check O2 Deficiency Monitor uses an exclusive Current Limiting Zirconium Oxide Oxygen
sensor that never requires a reference gas. Unlike concentration type zirconium cells that must have a
reference gas, PureAire’s O 2 monitor can operate in 100% nitrogen environments. Capable of
detecting percent oxygen levels, the current limiting O 2 sensor operates at a lower temperature than
competitive concentration type cells. The average life of PureAire’s O 2 sensor is over 10 years in most
environments.
PureAire’s Oxygen Sensor Cell
The Air check O2 Deficiency Monitor uses an exclusive Current Limiting Zirconium Oxide Oxygen
sensor that never requires a reference gas. Unlike concentration type zirconium cells that must have a
reference gas, PureAire’s O 2 monitor can operate in 100% nitrogen environments. Capable of
detecting percent oxygen levels, the current limiting O 2 sensor operates at a lower temperature than
competitive concentration type cells. The average life of PureAire’s O 2 sensor is over 10 years in most
environments.
The Air check O2 Deficiency Monitor never needs calibration. The earth is a wonderful source of
calibrated oxygen and under ambient levels; PureAire’s O2 monitor is continuously being challenged to
20.9%. There are no zero or span adjustments to make; the only optional response test required is to
subject the O2 system to nitrogen periodically.
O2 Monitor System Features
The Air check O2 Deficiency Monitor never needs calibration. The earth is a wonderful source of
calibrated oxygen and under ambient levels; PureAire’s O 2 monitor is continuously being challenged to
20.9%. There are no zero or span adjustments to make; the only optional response test required is to
subject the O 2 system to nitrogen periodically.