HOME   NEWS

DOG-4 Gas Analyzer


Application

DOG-4 Differential Optical Gas Analyzer is intended for continuous automated monitoring of nitrogen oxide NO and sulfur dioxide SO2 in exhausts of thermal power plants operating on natural gas, coal and black oil.

 

Principle of operation

Operation of the instrument is based on measurement of differential absorptionof UV radiation. DOG-4 gas analyzer is installed in immediate proximity to a smoke flue and connected to it via sample preparation system.

Current values of NO and SO2, concentration are indicated on a liquid crystal display (as digits) and go to linear output of the instrument (as standard linear output current). 

 

Merits

High NO and SO2 selectivity, high reliability, lamp UV source, microprocessor control, automatic monitoring, calibration with reference gas mixtures, usability.