Key Features
- Explosion-proof enclosure for classified areas
- Hydrogen sulfide selective electrochemical sensor technology
- 0-50 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 OSHA/NIOSH levels for personnel protection
- No false alarms from interference gases
- Real-time continuous monitoring for early leak detection
The GG-H2S-EXP is designed for detection of hydrogen sulfide vapors in hazardous areas. The standard detection
range of 0-50 ppm provides real-time
continuous monitoring of concentrations accurately down to 5 ppm with no
false alarms.
The GG-H2S-EXP utilizes a proven
hydrogen sulfide specifc electrochemical sensor for detecting poisonous H2S
gas concentrations. No false alarms
due to cross-sensitivities from other
gases, and no false alarms from temperature or humidity fluctuations.
The GG-H2S-EXP provides an industry
standard linear 4/20 mA output signal
proportional to ppm concentration
of hydrogen sulfide. Long sensor life
with minimal span adjustment can be
expected in most applications. The
sensor is designed for simple calibration and the sensor head is easily field
replaceable.
Applications
- Sewer Gas Monitoring
- Petroleum Refineries
- Paper Mills
- Tanneries
Benefits
- Low cost explosion protection
- No false alarms from interference gases
- Simple operation & calibration
Hydrogen sulfide gas is slightly heavier
than air and will tend to accumulate
in low-lying areas in poorly ventilated
spaces. 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 no higher
than 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 H2S sources.
The GG-H2S-EXP is intended for horn/
strobe and ventilation activation, and
is also useful for alarm outputs such as
phone dialers 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.