The new IR4000 Infrared Combustible Gas Detection System from General Monitors (USA) is a scalable plant safety solution with voting. The system’s IR4000M Multi-Point Monitor can connect up to eight IR400 Point IR Gas Detectors and read their status with one command, one detector at a time. The IR4000M can also calibrate, gas check and zero each IR400 sensor with a single command, reducing the cycle time for routine maintenance.
The IR4000M is highly versatile. The monitor incorporates a display, relay module and a data concentrator in an explosion-proof enclosure and magnetic interface, which permits installation and calibration in hazardous locations.  Optional 8-Amp relays expand system functions, reducing the need for integration with other controllers.  HART and Modbus permit the device to convey device IDs, concentration readings, and time-stamped diagnostic, maintenance, and warning and alarm records to the control room.
The versatile IR4000 System is suitable for a wide range of hazardous industry processes and plant applications: Â LNG/LPG processing and storage, electric power generation plants, oil and gas production platforms, petrochemical refining, compressor stations, aerospace facilities and wastewater treatment. Â The system is certified by FM, CSA, ATEX, CE Marking and IECEx for worldwide application and is also suitable for use in SIL 2 environments.
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