Key Features
- Detects R22, R134a, R404A, R507A, and other CFC / HFC / HCFC gases
- Continuous monitoring of refrigeration system relief valves
- Industry standard 4-20 mA output
- Durable and long life solid-state sensor
- Corrosion, weather, and chemical resistant transmitter enclosure
- Temperature compensation for harsh environments from -46°F to +140°F
- Sensor and preamp in one assembly - only one cable required
- 0-1% (0-10,000 ppm) with a 50% (5000 ppm) deadband
- Innovative sensor housing allows for simple & low cost sensor replacement
- New design allows for easy calibration from inside the enclosure
The GG-VL2-R utilizes a rugged solid state sensor technology for fast leak
detection and long life. The standard
detection range of the GG-VL2-R provides real-time continuous monitoring
of refrigerant leaks in your high-pressure relief vent header.
High concentrations of refrigerant
gases in your vent line are usually
indications of a leaking valve or system
overpressure. This could mean costly
repairs or plant downtime, not to mention loss of refrigerant. Early detection
can save money and protect equipment and personnel.
The GG-VL2-R sensor provides an industry standard 4-20 mA output signal
compatible with most gas detection
systems and PLCs. Expect long sensor
life and no zero-signal drift over time.
Minimum maintenance requirements
include only a calibration twice per
year.
Applications
- Refrigeration System Vent Lines (outdoor installations only)
Benefits
- Low cost
- Rugged and reliable
- Easy to calibrate
- Simple sensor replacement
- Typical sensor life 5 years
The GG-VL2-R sensor is designed for
outdoor mounting at 3’ to 5’ above
the roof line on the relief discharge
to atmosphere. The 1⁄2” pipe nipple
of the supplied mounting kit should
be welded or threaded to the relief
discharge.
The 304 stainless steel enclosure
provides excellent corrosion protection against any type of weather.
Every transmitter circuit board is
sealed forever in potting compound,
protecting electronic components and
copper tracing from corrosion. Built-in
temperature compensation helps prevent false alarms during the coldest of
winters and hottest of summers. The
life of the sensor is minimally affected
by exposure to refrigerant gases.
The GG-VL2-R is intended to be a “leak
detector” and not an instrument for
calculating refrigerant loss due to the
non-linear characteristics of the solid state sensor technology.
R507A 1% is one of the few halo carbons that is easily obtainable. Since
the GG-VL2-R sensor element has similar sensitivities to most halo carbons,
we recommend using R507A 1% as
calibration gas.
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