Air check Advantage Benzene Gas Monitor


Item #: SH-2250FWD

Product Summary

The Air check Advantage Benzene Gas Monitor is a compact, extractive gas monitoring system that’s ideal for continuously and remotely monitoring gas cabinets, process tools, scrubber systems, and other areas where maintenance access may be limited or undesirable. Featuring a long life pyrolizer and sample pump, this reliable hazardous gas detection system significantly reduces the labor and downtime commonly associated with gas detector maintenance and service.

The instrument’s “smart” circuitry continuously monitors sensor cell status and sampling system performance. Continuous sensor cell operation is transmitted via 4-20 mA signal to PureAire controllers, PLC’s or remote alarm systems. Should a system error occur, the Air check Advantage outputs a 2 mA signal to remote alarm/control systems to immediately alert control room personnel.

The heart of the system is a smart renewable sensor cell linked to a compact pyrolizer. Sample is drawn through the pyrolizer where Benzene is thermally decomposed and converted into another gas that is more easily detected electrochemically. Unlike competitive Benzene detectors, which measure at the percent LEL levels, the Air check Advantage measures at the PPM levels.

  • Detects Benzene at PPM Levels
  • Enhanced Self-diagnostic Capability Decreases Downtime and Maintenance Costs
  • “Smart” Sensor Electronics Continuously Checks Sensor and System Status
  • Built-in User Selectable Local Dual Level Alarms with Relay Output
  • Local Digital Display
  • 4-20 mA Analog Output
Sampling MethodExtractive Sample Draw
Gases DetectedBenzene (C6H6)
Range10 – 10 ppm
Accurancy± 10 %
Operating Temperature-20 to +50 ºC
-4 to +122 ºF
Sensor TypeDisposable Electrochemical Sensor
Sensor Life3 years under Normal Conditions
Gas Concentration IndicatorBuilt-in LCD Digital Display, Back Lit
Displays, Gas Name, ppm Concentration, AL1, AL2, System Fault Messages
Signal Outputs4-20 mA Analog Output
Alarm Level 1 – SPDT AC 125 V, 0.3 A max
Alarm Level 2 – SPDT DC 30 V, 1.0 A max Resistive Load
Fault – SPDT Fail Safe
Sampling Distance2100 ft
33 m
Sample PumpElectromagnetic DC Diaphragm Pump
Power Requirements2.0 A
24 VDC
Width10.0 in
254 mm
Height7.0 in
178 mm
Depth7.0 in
178 mm
Weight8.0 lb
3.62 kg
EnclosureIP 65 Nema 4X Wall Mounted
Optional ExtrasEnclosure: Class 1, Div 1, Group B, C & D Explosion Proof

1 Other ranges available, consult factory.
2 Longer sampling lengths available, consult factory.

Ease of Use
PureAire uses a sophisticated built-in CPU that is flexible to provide users with a full featured monitor. Designed with a joystick to adjust dual level, user selectable alarm relays there are no pots to adjust. Combined with our built-in, low power pyrolizer, and long life sample pump, the Air check Advantage will lower your annual operation costs. When compared to competitive gas monitors, it will pay for itself in just a few years.

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

Air Check Advantage Pyrolizer Manual (PDF, 831KB)

Cell Data-Sheet Benzene (PDF, 31KB)