Overview

Employing current and temperature to modulate (tunable) wavelength of laser accurately, it is able to scan the specific absorption peak of measured gas (no background gas absorption) and obtain its absorbed second harmonic. The gas concentration can be calculated according to broadening information and second harmonic.

LGT-680 laser gas analyzer integrates parts like transmitting unit, receiving unit and measuring room in a 19-inch 4U chassis while the analyzer itself has been installed in the 19-inch cabinet. Sample gas reaches measuring room after passing by sampling probe for filtering and water removal. Transmitting unit will emit laser with specific wavelength and has been frequency selectively absorbed by measured gas in the measuring room. The receiving unit can obtain concentration according to absorption information of laser spectrum.

Technical Parameters

Features

Common structure, convenient for integration

Strong anti-interference capacity, high measurement accuracy and small drift

Mutiple parameters display on one screen, fast response time

Stronger adaptability to working condition

Easy maintenance

Modular design, convenient to maintain

High measurement accuracy

Adopt wavelength modulation technology, with high measurement accuracy and stability