Description: Hydrogen Cynide Gas Monitoring System is used to determine PPM level for human or environment safety. This system is used for ambient monitoring, pulp and paper plants, stack monitoring, chemicals and petrochemical, refineries, acid alkalise and dyes manufacturing plants, chemicals processing plants, sewage plants and chemical storage area. This system is available in portable and wall panel mounted version, supported with microprocessor based technology along with long life electrochemical sensors. The system accepts input 4-20 mA/3-wire from toxic gas transmitter. The user is allowed to set the values for range, resolution, alarm set point, alarm control action. The user is allowed to do easy on-line field calibration from front keys. The system has programmable latch and non-latch facility for relays and LED indicator. The general features of the system includes the following : two independent set points individual with relay output, 1 fault relay for fail safe operation; all three relays have 1 NO/C/NC contact rated 230 V/5 A; non-isolated 4 to 20 mA retransmission output is available for PLC, DCS and any chart recorders. The system has optional RS-232/RS-485 serial port with Modbus RTU protocol for online PC based data monitoring.
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