ISA Expo 2006: Combustible, toxic monitors in IR, catalytic bead versions


Machine Control & Discrete Sensors

Model 5100-02-IT combustible gas sensor module from Sierra Monitor features catalytic bead technology and provides interface via 4-20 ma, Modbus RS-485, or proprietary Sentry bus.

Houston, TX and Milpitas, CA —Sierra Monitor will show new IT Series combustible gas sensor modules and two-wire 4501 Series toxic gas sensor modules at ISA Expo 2006. IT Series combustible gas sensor modules are available using either infrared (5100-28-IT) or catalytic bead (5100-02-IT) technology and provide interface via 4-20 mA, Modbus RS-485, or the company's proprietary Sentry bus. Intelligent modules are said to be designed to provide the due diligence expected in hazardous areas.

Features include long-term calibration interval for reduced maintenance. Catalytic bead version is FM-approved with a 6-mo calibration frequency. An integral LED scrolling, easy-to-read display has a magnet operated menu for showing gas status and providing non-intrusive calibration. Integral alarm relays may be supplemented by higher amperage control relays in the same enclosure.

Click here to learn more about the IT Series on the Sierra Monitor Web site.

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