DUCON Technologies - MIP Division

Cems Questionnaire

	Measurement Uncertainty CO2 /H2 O ± 0.2%; other gases ± 2ppm or ±2% of measurement (whichever is the greater). Measurement Temperature (Flue gas) Dew point to 600°C (below dewpoint by arrangement) Measurement Units Ppm (vol), mg/m3; mg/Nm3; kg/h, tones/annum by arr angement Display • via pc running SmartCOM software • real-time data • historical trend data • diagnostic data • diagnostic trend data • calibration data • operating parameters • set-up menus • summary reports • on-line support via MODEM Outputs Analogue up to 8 x 4-20mA (Located in SCU) 200V common mode isolation 500 ohms max. Load; Fully configurable for parameter, span, zero and response time Logic up to 8 x volt-free contacts (located in SCU) SPCO rated at 50V/1A Inputs Analogue 1 x 4-20mA for process gas temperature 1 x 4-20mA for remote O2 measurement Serial Port For connection to bi-directional 4-wire data bus (located in Station terminating at the CDC when installed as part Control unit) of an integrated emission monitoring (IEM) system Ambient Temperature All units are designed to operate in ambient temperatures of -10°C to +45°C (up to 60°C by arrangement). Extreme climatic conditions may require further protection Enclosures All units are sealed to IP65 (NEMA 4) standards and are suitable for outdoor installation Power Requirements Power Supply Unit 110 or 240V AC 50-60Hz single phase 600VA Sample Line 110-240V AC; 50-60Hz single phase; 150VA per meter Purge Gas Requirements Compressed air/N2 Clean and dry to -20C. Normal operation 0.5 l/sec Calibration (10 minutes) 10 l/min Download PDF
The G-CEM4100 is a hot extractive analyzer using infrared absorption spectroscopy to measure up to seven gases in a single self-contained chamber unit. The conventional extractive systems require sampled gases to be cleaned and dried to a very high purity prior to analysis invariably resulting in a elaborate sampling system requiring high maintenance. Model G-CEM4100 draws gases through a coarse filter probe and transports to the measurement chamber via a short heated sample hose-without elaborate conditioning
Multiple gases in one Analyzer Minimal sampling required Suitable for mass emissions analysis Fully compliant to 40CFR60 and 75 Remote MODEM/Web access
No chillers, pumps or sampling system required Most suitable for analysis of water soluble gases by hot-wet technique like ammonia Water vapor also measured to compensate for true EPA Mass emissions data Low cost NDIR on-stack continuous monitoring for 7 gases in one analyzer most suitable high temperature process or flue gas Simple installation with only ONE module, NEMA 4X Analyzer and sample and Cal gas connections
Summary Specification Measurements Main measurement channels (1-7) Any combination of up to seven gases from CO/CO2 /NO/NO2 /SO2 /HCl/UHC/H2 O Measurement Limits (maximum) CO2 /H2 O 50% (vol); SO2 50000 ppm (vol) Others 6000 ppm (vol) Measurement Spans CO/NO/NO2 /SO2 /HCl/UHC selectable up to 9,999vpm; CO2 /H2 O selectable up to 99% Note that although very low spans can be configured, this should not be done without consideration of the measurement uncertainty.

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