Air Check Advantage Carbonyl Sulfide Monitor

Air Check Advantage Carbonyl Sulfide Monitor

Item #: 99156


Product Summary

The Air Check Advantage Carbonyl Sulfide (COS) Monitor is a compact extractive gas sampling system designed for the continuous detection and measurement of toxic gas leaks. It is capable of sampling over distances of up to 100 feet (33 meters). The COS monitor is a single-point monitoring system built into a general-purpose, polycarbonate housing that may be wall-mounted. It’s designed to require as little space for installation as possible.

  • Detectable limits COS up to 50ppm
  • Detects low-range TLVs
  • Sampling pump with monitoring capabilities up to 100ft
  • 1-year warranty
  • User Selectable Dual Level Alarm and System Fault Relays
  • Digital display
  • 4-20mA analog output connects to PLC (Active)

The Air Check Advantage Carbonyl Sulfide Gas Monitor is ideal for facilities that require continuous monitoring and protection of personnel around semiconductor process tools. The built-in pump allows for monitoring up to 100 feet away and is perfect for use in valve manifold boxes or spaces that are not easily accessible. This monitor is well suited for environments such as semiconductor clean rooms where toxic gas is present.

Sampling Method Extractive Sample Draw
Gases Detected Carbonyl Sulfide (COS)
Range1 0 – 50ppm
Accuracy 0.5 ppm
Operating Temperature -0° to 50°C (0° to +30°C)
Sensor Type Disposable electrochemical cell
Sensor Life 2-3 years under normal conditions
Gas Concentration Indicator Built-in LCD Back-Lit Digital Display – Displays, Gas Name, ppm Concentration, AL1, AL2, System Fault Messages
Signal Outputs 4-20 mA Analog Output (Active)
Alarm Level 1 Yes
Alarm Level 2 Yes
Fault Yes
Sampling Distance2 100 ft
Sample Pump Electromagnetic DC Diaphragm Pump
Power Requirements 2.0 A 24 VDC
Width 10.0 in 254 mm
Height 6.5 in 165.1 mm
Depth 8.05 in 204.5 mm
Weight 10 lb (4.5 kg)
Enclosure Polycarbonate

1 Other ranges available, consult factory.
2 Longer sampling lengths are available, consult PureAire Monitoring Systems.

Additional Gas Monitor Accessories List Price
8 Channel Controller $3,355.00 US (P/N # 99196)
Horn and Strobe  $190.00 US (P/N # 42002)
Remote Display $435.00 US (P/N # 99091)

Low Annual Operation Cost
The PureAire Air Check Advantage Carbonyl Sulfide Monitor has a built-in, low-power pyrolizer, and long-life sample pump.

Connects to DCS and PLC Controls
The Air Check Advantage Carbonyl Sulfide Monitor transmits continuous gas concentration levels to any distributive control system, programmable logic controller, or PureAire’s proprietary single and multichannel controllers. The monitor can operate up to 1,000 meters, 0.6 miles from centralized distributive control systems.

COS Product Literature 

Air Check Advantage COS Manual 

Gases Detected with PureAire Monitors

Remote Digital Display p/n 99091


Horn/strobe 24VDC Red

horn and strobe


8-Channel Controller for Oxygen, Carbon Dioxide, or Toxic/Combustible Gas Monitors