Key Features
- Explosion-proof enclosure for classified areas
- Nitrogen dioxide selective electrochemical sensor technology
- 0-10 ppm factory range
- Electronics potted to eliminate internal corrosion
- Industry standard 24VDC, linear 4-20 mA output
- Operating temperature from -4°F to +122°F
- Accurately monitor NO2 levels for personnel protection
- No false alarms from interference gases
- Real-time continuous monitoring for early leak detection
The GG-NO2-EXP is designed for detec-
tion of nitrogen dioxide vapors in haz-
ardous areas. The standard detection
range of 0-10 ppm provides real-time
continuous monitoring of concentra-
tions accurately down to 1 ppm with no
false alarms.
The GG-NO2-EXP utilizes a proven
nitrogen dioxide specifc electrochemi-
cal sensor for monitoring toxic levels
produced by diesel-powered heavy
engines and other sources. No false
alarms due to cross-sensitivities from
other gases, and no false alarms from
temperature or humidity fluctuations.
The GG-N02-EXP provides an industry
standard linear 4/20 mA output signal
proportional to ppm concentration
of nitrogen dioxide. Long sensor life
with minimal span adjustment can be
expected in most applications. The
sensor is designed for simple calibra-
tion and the sensor head is easily field
replaceable.
Applications
- Truck docks
- Maintenance garages
- Loading bays
- Diesel Engine Test Benches
- Tunnels
- Air Monitoring
Benefits
- Low cost explosion protection
- No false alarms from interference gases
- Simple operation & calibration
Nitrogen dioxide is heavier than air
and will tend to accumulate in lowlying areas in poorly ventilated rooms.
For optimum personnel protection
(representative concentration reading
that an employee
would be exposed to), mount the sensor at a height in the breathing zone
of the employees. It would typically
be about 4 to 5 feet off the ground,
which also allows easy access. As a
general rule of thumb, try to mount
sensors within 30 feet of potential NO2
sources.
The GG-NO2-EXP is intended for horn/
strobe and ventilation activation, and
is also useful for alarm outputs such
as phone dialers, bay doors and other
alarm functions.
Typical sensor element life is 3 years,
with minimal cross-sensitivity to
other gases. Field replaceable sensor element keeps long term maintenance simple and low cost. Every
circuit board is potted to completely
eliminate corrosion to the electronic
components and copper tracing on
the circuit board. An explosion-proof
aluminum enclosure houses the transmitter.