ArduinoGeneral

Problem with Infrared CO2 sensor (SEN0219)

userHead Account cancelled 2017-11-08 03:17:03 2682 Views1 Replies
I've bought SEN0219 and i'm using Arduino Uno. I got sample code from wiki.

It gives reasonable 300-500 ppm values at start but after couple minutes it raises to 2500-3000 ppm and i'm hard to believe that i dfrobot in that conditions with air condition.

It seems that after preheating time (around 3 minutes) it raises to that level, but that can't be correct value. What should i do?
2017-11-16 16:57:21 You can run the sensor for more than 24h, it will recalibrate after 24h. userHeadPic robert.chen