Description: Explosion proof gas monitor has been introduced with CMRI certificate for gas groups IIA and IIB with CMRI certified gas detectors type FLP-I (CMRI certificate No: CMRI/TC/H680 dated 20/06/95). The material is LM- 6 and has a facility to hook up five gas detectors (flameproof) at a maximum distance of 350 metre away. Both gas detectors and enclosures are certified IS 2148-1981 and IS2147-1962 (for IP-55) and can be safely installed in hazardous areas for long life. Controller has analogue as well as digital readout facilities of concentration of gases with facility to have alarm (audio/visual) for three different pre-calibrated levels. Calibration is done on imported calibration equipment and has test and reset switches with output to the recorder and NO/NC contacts for annunciation panels. Microprocessor-based digital controller units are also available with 4-20 mA output and all other facilities for detection of gases like chlorine, SO2, oxygen, LPG, ammonia, alcohol vapours and various explosive and toxic poisonous gases. Normal operation is 110 or 230 AC with battery backup facility.
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