Air check Ex Combustible Gas Monitor - Air check Ex

  • Air check Ex Combustible Gas Monitor
  • Air check Ex Combustible Gas Monitor
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• Sampling Method​: Diffusion cell​
• Accuracy​: ± 10% of reading​
• Operating Temperature: -25 to +122°F (-32 to +50°C)​
• Display: 3 ½ digit LCD digital display​
• Sensor Type: LEL catalytic bead​
• Sensor Life: 2 to 5 years under normal conditions
• Signal Outputs: 4-20 mA analog output​​

  • Model Number: Air check Ex
  • Data Sheet: Date Sheet File
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Product Specification

Air check Ex Combustible Gas Monitor

The Air check Ex is a compact gas monitoring system that's ideal for continuously monitoring toxic and corrosive gases 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 4 explosion proof enclosure and is available for hydrogen gas. Capable of monitoring the % LEL hydrogen, the Air check Ex is a perfect monitoring solution for providing worker protection in chemical plants, refineries and other areas requiring hazardous classifications.

Air check Ex Combustible Gas Monitor Features
• Non-Intrusive one-man calibration
• Ex proof enclosure
• Designed for Combustible gases
• Local digital display
• 4-20 mA analog output
• Long Life LEL catalytic sensor

Air check Ex Combustible Gas Monitor Specifications

Sampling Method
Diffusion cell
± 10% of reading
Operating Temperature
-25 to +122°F (-32 to +50°C)
3 ½ digit LCD digital display
Available Gases
Methane, Hydrogen LEL, Acetylene & other combustible gases available.
Sensor Type
LEL catalytic bead
Sensor Life
2 to 5 years under normal conditions
Signal Outputs
4-20 mA analog output
Power Requirements
24VDC 3 wire, (48 VDC 3 wire available for LEL and Hydrocarbon gases)
5.3 (W) x 6.125 (H) x 4.61 (D) inches; (135 x 156 x 117 mm)
4 lbs. (1.8 kg)
Enclosure Rating
Nema 4 explosion proof suitable for Class 1, Groups B,C, D
3ea. Alarm relays: Low and High level gas alarm and System fault
Modbus digital communications

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