Air check 
Advantage
Ex Acrylonitrile Monitor
Features
- Detects Acrylonitrile at TLV levels
- “Smart” sensor electronics continuously checks sensor, flow and system status
- Built-in user selectable local dual level alarms with relay output
- Local gas concentration digital display 4-20 mA analog output
- Low cost renewable sensor cell
- Enhanced self-diagnostics capability decreases downtime and maintenance costs
The Air check
Ex Acrylonitrile
Monitor is a compact, extractive continuous gas
monitoring system designed to monitor in hazardous
areas. The system uses our proprietary renewable
electrochemical sensor cell combined with a long
life pyrolizer to provide extremely sensitive and
specific Acrylonitrile monitoring. Unlike traditional
LEL solid-state detectors, the Air
check
Ex pyrolizer
technology is extremely sensitive and capable of
detecting parts-per-million concentrations of Acrylonitrile
at TLV levels without being affected by humidity
or other environmental conditions.
The heart of the monitoring system is a long life
pyrolizer designed to convert Acrylonitrile to
an electrochemically active gas detected on PureAire’s
renewable sensor cell. And the low cost renewable
sensor cell offers the lowest annual preventative
maintenance materials at about $75 per year for
electrolyte replacement. The Air check
Ex electronics,
pyrolizer, sample pump and sensor cell are housed
in a weather and explosion-proof enclosure suitable
for installation in Class 1, Division 1, Group
B.C and D hazardous areas.
The instrument’s “smart” circuitry continuously monitors
sensor cell status and sampling system performance.
Continuous sensor cell operation is transmitted
via 4-20mA signal to PureAire controllers, PLC’s
or remote alarm systems. Should a system error
occur, the Air check
Ex outputs
a specific mA signal to remote alarm/control systems
to immediately alert control room personnel.
Low Annual Operation Cost
The PureAire Air check
Ex has
the lowest annual maintenance costs of any gas
monitoring system on the market. PureAire’s Renewable
Sensor cells are easily recharged with electrolyte
right in the field at approximately 20% of the
cost of disposable sensor cell type systems. Recharge
costs typically run about $35.00 per sensor every
6 months. Combined with our built-in, low power
pyrolizer, and long life sample pump, the Air
check
Ex 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
Ex Acrylonitrile
Monitor is 24VDC powered and transmits continuous
gas concentration levels to any distributive control
system, programmable logic controller or PureAire’s
proprietary single and multichannel controllers.
The Air check
Ex Monitor
can be operated remote up to 1,000 meters, 0.6
miles from centralized distributive control systems.
Intrinsically Safe Corrosive Gas Monitor
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A new gas monitoring system designed to detect and measure low levels of methyl bromide and methyl iodide is available from PureAire Monitoring Systems. Extremely sensitive and high specific, the PureAire Air Check Advantage is capable of detecting parts-per-million concentrations of gases traditionally monitored at LEL levels...
Explosion-Proof Monitor for Combustible Gases
An explosion-proof monitoring system for the detection and measurement of Methane, (CH4) hydrogen (H2), and other combustible gases is available from PureAire Monitoring Systems. Designed specifically for use in Class I, Division 1, Group B, C, and D hazardous areas, the PureAire Air Check Ex Monitoring System is ideal for leak detection and surveillance in chemical plants, refineries, and other locations where explosive or flammable gases may be present.