• P D Enterprises

HYDROGEN SULPHIDE GAS MONITORING

P D Enterprises manufactures pollution and process monitoring system for hydrogen sulphide gas, either in process stream or ambient air to detect PPM level for human/environments safety. The gas detection instrument is available in portable, wall mounting or panel mounting versions with latest user-friendly micro-controller technology with long life electrochemical sensors. It accepts input 4-20 mA/3-wire from toxic gas transmitter. The range, resolution, alarm setpoint, alarm control action are programmable by users. Features: very high accuracy of 0.25% with software linearisation; easy on-line field calibration by user from front keys; programmable latch and non-latch facility for relays and LED indication; two independent set points individual with relay output, one fault relay for fail safe operation - all three relays have 1 NO/C/NC contact rated 230 V/5 A; non-isolated 4-20 mA retransmission output is available for PLC, DCS and any chart recorders; optional RS-232/RS-485 serial port with Modbus RTU protocol for online PC based data monitoring. It is very useful for chemical processing plants, ambient air monitoring, sulphur recovery, plants, gas pipe lines, drilling rigs, gas plants, pulp and paper mills, heavy water plants, stack monitoring, sewage treatment plant, etc.