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AT-2000 (V3)
Refrigerant Gas Analog Transmitters
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The PolyGard®1 Series is sunsetting and superseded by our next-generation PolyGard®2 — product availability is significantly limited.
Refrigerant gas transmitter with two-beam infrared sensor continuously monitors ambient air for the presence of hydrochlorofluorocarbon (HCFC) and hydrofluorocarbon (HFC) refrigerants. Integrated temperature and drift compensation yield high long-term stability and accuracy as well as target gas selectivity, with a recommended calibration interval of 5 years. Three-wire “sourcing” transmitter, field configurable for a current (0/4-20 mA) or voltage (0/2-10V) output, with overload and short circuit protection. NEMA 4X rating provides maximum protection from dust and water damage.
For leak detection in commercial and industrial cooling systems, with refrigerant gases (HCFC and HFC) as cooling agents. Flexible 18-28 VAC/DC power and industry standard current or voltage output signals, for easy installation and connection to local controllers, annunciators, or building automation systems.
- Continuous monitoring
- Dual-beam, non-dispersive infrared (NDIR) sensor for high selectivity and long-term reliability
- ± 20 ppm accuracy (± 40 ppm for 0-2000 ppm range)
- AC or DC powered
- (0)4-20 mA, (0)2-10 VDC output, selectable
- Life expectancy > 10 yrs.
- Calibration interval > 5 yrs.
- Modular plug-in technology
- high-impact polycarbonate NEMA 4X enclosure
- 1/2" conduit adapter included
- Two-stage relay output control, optional
- Two years material and workmanship,
12 months normal exposure for sensor element
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