The system consists of a centralized controller linked to individual gas detectors/transmitters. Concentration from each connected detector is displayed in either bargraph or numerical format on an easy to read local LCD display and is also output as an RS-485 digital signal. Gas concentrations that exceed user-programmed alarm levels are indicated locally and may also be output to auxiliary alarm/control systems via dedicated alarm relays. Loss of sensor signals and other instrument error conditions activate a local channel status LED and a common system fault relay.
<%=company%>, Suite 57, 5420 Newport Dr., Rolling Meadows, IL 60008. Tel: 847-788-8000; Fax: 847-788-8080