Portable/Field Testing

  • Portable Laser Gas Analyser for Landfill CH4, NH3 and CO2 Monitoring

Portable Laser Gas Analyser for Landfill CH4, NH3 and CO2 Monitoring

Nov 06 2017 Read 1149 Times

Landfill Gas (LFG) is the product of microbiological decomposition of land-filled waste. The bacteria thrive under anaerobic conditions and turn complex organic compounds found in waste matter into primarily Methane and Carbon Dioxide, LFG is approximately 50-55% methane and 40-45% carbon dioxide.

The ETG 6900 P a portable Laser Gas Detection (LGD), based on Tunable Diode Laser Spectrometry (TDLS), provides a solution to many gas detection challenges in landfill emission monitoring and process control. This technology offers unique advantages like precise optical, contact-less measurements, excellent target gas selectivity and sub ppm-level detectivity.

The TDLS technology-enhanced for gas detection, where a 0.1 nm narrow bandwidth diode laser beam is scanned across an absorption band of the target gas, performing a high-resolution near-infrared absorption measurement. Electronic lock-in technology allows separating the gas absorption information from electro-optical system information, leading to a detection method eliminating the need for a physical reference channel.and offering continuous sensor status monitoring. The ETG 6900 P thus present a clear alternative to current sub-optimal detection solutions and combine precise with high target gas selectivity, calibration-free operation, low-cost-of-ownership and easy use by the customer.

The ETG 6900 P analyser is powered by Li- ion battery and can be used without AC power supply. It can be used for measurement of the concentration of CH4 ,CO2 ,NH3 in sample gases.

Main features are : Very fast CH4 ,CO2 ,NH3 detection,Sample pump inside, Portable in robust case, Zero & Span Calibration, Continuous sensor status monitoring, Low cost-of-ownership, Touch Screen monitor, Ethernet and USB Remoting, Modbus, Profibus, Ethernet output, Arm processor based, Digital Input/output, Some Applications are; Natural gas networks, Landfill surface emissions, Momentary leaks of methane.

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