PureAire Monitoring Systems, Inc

- Toxic Gas Monitor



The Air check Ex Toxic Gas Monitor is a compact gas monitoring system that’s ideal for continuously monitoring toxic and in hazardous areas. The Air check Ex non-intrusive calibration allows sensor calibration in hazardous areas without area declassification. The only tool required is a small magnetic wand, designed to be carried on a technician’s key chain. It also allows true one-man calibration, which significantly reduces the labor and downtime commonly associated with gas detector maintenance and service. The instrument’s fault supervision circuitry continuously monitors for failed sensor cell and communication line breaks. Plus sensor cell operation is continuously supervised 24/7 and when used in conjunction with distributive control systems or PLC’s, provides immediate fault identification for a disconnected sensor cell. The Air check Ex is housed in a Nema 7 explosion proof enclosure and is available for Carbon Monoxide, IPA, H2, H2S and other toxic gases. Capable of monitoring ppm levels of toxic gas or % LEL levels of combustible gases, the Air check Ex is a perfect monitoring solution for providing worker protection in chemical plants, refineries and other areas requiring hazardous classifications.

  • CO, IPA, H2, H2S, and Other Toxic Gases
  • Dual Sensor Capability
  • Non-Intrusive One-man Calibration
  • Ex Proof Enclosure Div 1 & 2, Group B, C, & D
  • Local Digital Display with Bargraph & Trending
  • User Adjustable Dual Alarm Relays
  • 4-20 mA Analog Output
  • RS-480 Modbus Optional
  • NRTL CSA Approvals, ATEX Optional

One or Two Gas Monitoring
The PureAire Air check Ex electronics is capable of monitoring one gas or two different individual gases simultaneously with one transmitter. The Dual Sensor Configuration displays two-gas readings and outputs 4-20 mA outputs for each gas to remote controllers.

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