ArduinoGeneral

Analog CO2 Gas Sensor

userHead Private Ltd Implantaire Technologies (I) 2016-08-05 21:48:36 7255 Views2 Replies

Hi,

I'm working on the Gravity CO2 Sensor with Arduino Mega 2560. I ran the sample https://wiki.dfrobot.com/sen0159 from the sensor wiki. i got the readings around 9000ppm - 10000ppm in an indoor room. How do i calibrate this sensor for 
1. ZERO_POINT_X 
2. ZERO_POINT_VOLTAGE 
3. MAX_POINT_VOLTAGE 
4. REACTION_VOLTGAE.
Please help me out. I'm stuck.

2026-03-09 15:42:02

Hi There,

Plz read the FAQ on wiki for the calibration method. But it requires a commercial CO2 meter which can tell CO2 density first (like this one https://www.ebay.com/itm/Extech-Desktop-Indoor-Air-Quality-CO2-Monitor-CO100-IAQ-Health-Temp-Humidity-/391113945766?hash=item5b103532a6:g:4TQAAOSw5VFWQ1z2 ), or you won't have the chance to calibrate it.

userHeadPic Leff
2016-08-06 02:29:21 What is the sensitivity of this sensor? in ppm userHeadPic Private Ltd Implantaire Technologies (I)