08-23-2022 10:27 AM
Hi,
I develop a connected electric radiator and I would like to install an IAQ sensor in this radiator to be able to give information on the air quality to the user.
So I bought a BME680 to do some testing. In my living room, I get an approximate constant value of 500 ppm, which is a good level of eCO2. Then, I simulated heating the radiator using a hair dryer, the measured eCO2 exploded around 2000 ppm, which is a bad CO2 level. You can see in the attached picture the stability of the eCO2 measured then the beginning and the end of the heating with the hair dryer.
So I wanted to know if the radiator heat could have an impact on the sensor or if it was just my hair dryer ? If it comes from external heat, do you think it possible to install an IAQ sensor in a radiator ?
Thank you very much for your time,
Best regards,
Steven
08-24-2022 08:04 AM
Hi Yang56,
The temperature around BME680 should not be overheated,otherwise it will affect the output of BSEC, and the actual ambient temperature should be measured.
BME680 HSMI document also mentioned it.
https://www.bosch-sensortec.com/media/boschsensortec/downloads/handling_soldering_mounting_instructi...
If you would like to install BME680 to radiator, you should ensure that radiator temperature will not be transmitted to the sensor from the structural design.
08-25-2022 11:40 AM
Hi,
Thank you for your reply ! The documents are also very interesting concerning the positioning on a PCB. I will carry out tests in real conditions to observe the behavior of the sensor and thus find this suitable position.
Steven
09-23-2022 09:17 AM
Welcome, Yang56.