i´m neu in this forum :) and need help.
I want to measure the concentration of VOC Gas in a test chamber and bought the sensor Figaro TGS 2602. After fixing it on the arduino i´ve got the value (without calibration) 1022 then nothing more. The sensor staid at that value.
Question: 1- Why is the value so high? 2- Why does the sensor not react anymore? (afther blowing on it) 3- How can do the calibration? i´ve already red the datasheet, but i´m not understanding it 4- the sensor is very hot, why?
thanks for the answers