Air check O2 Sample Draw Monitor

Air check O2 Sample Draw Monitor

  • Suitable for Remote Sampling to 100 ft
  • No Maintenance Zirconium Cell
  • No Calibration Required
  • 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
Price   $2095.00
  • Features

    The Air check O2 Sample Draw 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 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 O2 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 O2 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 4X general purpose wall mounted weather resistance housing.

  • Specifications
    Sampling Method Sample Draw
    Gases Detected Oxygen (O2)
    Range 0 - 25 % O2
    -40 to +122 ºF
    Accuracy ± 1 % of Full Scale
    Operating Temperature -40 to +55 ºC
    Display 3/4" LCD Digital Display, Back Lit
    Sensor Type Long life zirconium oxide sensor cell
    Sensor Life > 10 years under Normal Conditions
    Signal Outputs 4-20 mA Analog Output
    Dual Level Alarm Relay Contacts
    Power Requirements 24 VDC
    700 mA
    Width 7.0 in
    178 mm
    Height 5.0 in
    127 mm
    Depth 5.0 in
    127 mm
    Weight 4.0 lb
    2.0 kg
    Enclosure1 Nema 4X Wall Mount General Purpose
    Required Calibration None
    No Zero or Span Pots Supplied
    Optional Extras Signal Output: Built-in Horn
    1 Not intended for explosive atmospheres
  • Advantages

    Connects to DCS and PLC Controls

    The Air check O2 Sample Draw Monitor is 24 V DC powered and transmits continuous oxygen concentration levels to any distributive control system, programmable logic controller or PureAire’s proprietary single and multichannel controllers. The Air check O2 Monitor also has dual user selectable alarm relays for activating remote horns and strobes. The monitor can be operated remote up to 1,000 meters, 0.6 miles from centralized distributive control systems.

    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 O2 monitor can operate in 100 % nitrogen environments. Capable of detecting percent oxygen levels, the current limiting O2 sensor operates at a lower temperature than competitive concentration type cells. The average life of PureAire’s O2 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 is available in many different configurations. PureAire uses a sophisticated built-in CPU that is flexible to provide users with a low cost basic display only monitor or a full featured monitor with dual level, user selectable alarm relays. When supplied with built-in alarm relays, the Air check program continuously monitors electronics, sensor cell and sample flow status. Fault information is sent to the mA output, alarm relay and front panel LED.