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Ammonia Gas Sensor: linear 4-20 mA signal.

The Model 4101-25 ammonia gas sensor module provides an industry standard linear 4-20 mA signal of Chlorine gas concentration with a range of 0 - 50 ppm [NH.sub.3]. This signal can interface with proprietary contollers or the user's own controller or DCS system. The model provides accurate measurement in the low ppm range and features field proven, reliable electrochemical sensor design, and self diagnostics. User-friendly design provides a low sensitivity check LED to inform the user when sensor replacement is due, false alarm avoidance features, and simple calibration. Applications range from detection of loss of refrigerant gas in food processing and pharmaceutical plants to area safety monitoring in various chemical plants. Sierra Monitor Corp., 1991 Tarob Ct., Milpitas, CA 95035.

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Publication:Laboratory Equipment
Article Type:Brief Article
Date:Aug 1, 2001
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