Chemtron science lab supplies a simple inexpensive unit. Model csl: dga-7045 is one of the analyser which is used for transformer oil dissolved gas analysis. Working of the analyser can be given as follows:the system consists of gas extraction unit to extract the gases from the transformer oil. The oil is stirred during extraction under vacuum at a temperature of 80ºc to 90ºc by employing a magnetic stirrer. The volume of gas is measured. Some of the features of this analyser include: model csl: dga-7045 is specially tailored for this analysis. It consists of fid and tcd detectors with suitable columns such that methane, ethane, ethylene, etc., are separated out and detected by fid, co and co2 is converted in to methane by methanator unit and detected by fid. Hydrogen is detected through tcd using argon as carrier gas. With unique system design and integration software the whole operation and complete analysis is completed in 15 minutes. Calibration gas standards required for the unit comes in two mixtures one having hydrocarbons and the other having hydrogen co and co2. Csl provide complete system with calibration gases, carrier gas along with gas extraction unit and chromatographic unit.
