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+607-3537780
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Portable Laser Gas Detector for Landfill Monitoring

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Portable Laser Gas Detector for Landfill Monitoring

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 analyzer 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 ,NHin 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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