The ETG 6900 P portable laser gas detector, based on Tunable Diode Laser Spectrometry (TDLS), is designed to provide solutions to challenges in landfill emission monitoring and process control.
This technology offers advantages like precise optical, contact-less measurements; target gas selectivity; and sub ppm-level detectivity, says the company.
TDLS allows for a 0.1 nm narrow bandwidth diode laser beam to scan across an absorption band of the target gas, performing a high-resolution near-infrared absorption measurement.
Electronic lock-in technology enables the separation of 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 analyser can be used for measurement of the concentration of CH4, CO2 and NH3 in sample gases.
Other features of the gas detection analyser include zero and span calibration, low cost-of-ownership, and Ethernet and USB remoting.
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