METHOD ENSURING SERVICEABILITY OF GAS ANALYZER Russian patent published in 2004 - IPC

FIELD: measurement technology, equipment testing serviceability of gas analyzers operating at increased positive and low negative environmental temperatures. SUBSTANCE: thermoelectric Peltier's module is anchored on electrochemical cell. Temperature- sensitive elements are positioned on electrochemical cell and in path of air flow. Temperatures of electrochemical cell and gas are measured and temperature difference processed by information processor, controller and amplifier generates controlling action proportional to direction and current through Peltier's module which is sent to thermoelectric Peltier's module. The latter heats or cools electrochemical cell depending of direction of current. Technical result of invention lies in ensured serviceability of gas analyzer at low temperatures up to -50 C and high temperatures up to +60 C. EFFECT: ensured serviceability of gas analyzer.