30-09-2017, 20:14
(30-09-2017, 11:27)JT118 Wrote: Both sensors seem to be able to measure a bigger range of 0-5000ppm, quite how this is decided I am not sure; but I am sure Werk has built this decision into the code if that is the way the range decision is made.
Currently the code doesn't do any change to the default measure range of the sensor, so each sensor is at its default values, which I think its 0-5000ppm.
Some time ago, I did some tests trying changing the measure range of my MH-Z19, to 0-2000, but I never reached any conclusion, as the measured values apparently haven't changed. Honestly I haven't had enough time to return to my researches with the MH-Z19. So, this is an open field for investigation...