Model SA-2N4 gas detection systems are designed to detect and monitor toxic, oxygen and combustible gases in ambient air. Sampling is via diffusion. The design features compatibility with a full range of conventional sensor technologies; catalytic Pellisitors, electrochemical sensors, photo ionization detectors, non-dispersive infrared, a multi spectrum combustible gas detection sensor and MOS refrigerant gas detectors. Specific gas type is determined by installing one or two selected Model SA1 smart sensor modules. Each sensor module stores gas type, range of sensitivity and the last zero and span calibration data points.
All electronics are contained within a NEMA 4X weatherproof enclosure suitable for installation in both indoor and outdoor locations. Model SA-2N4 gas detectors feature non-intrusive calibration using a small magnet. The color graphic display provides simple and intuitive user interface with real time readings and full script service instructions. Device status is readily determined by screen color; green normal – no alarm condition, amber alarm level 1, red alarm level 2 and blue indicates a fault condition.