Very high indications for the PurpleAir monitor!
Posted: Thu Feb 16, 2023 3:58 pm
Μeteobridge shows excessively high values for the PurpleAir device, when these (values) are greater than ~40µg/m3.
Ie. while for values smaller than 40μg/m3 it reads the channel A, for above ~40µg/m3 the values in the Raw Sensor Data do not correspond to channel A or B. Especially when the values are quite high, then there is an even greater deviation from the values displayed by PurpleAir on the map her,at the same time.
For example at 20:47 while the meteobridge shows 124µg/m3(1.jpg), on the PurpleAir map the corresponding value is 84.11 µg/m3(2.jpg)!
Ie. Raw Data on the PurpleAir map is in deviation from the Raw Sensor Data of meteobridge at the exact same time points, for values >~40µg/m3
A idea would be in the configuration of the device to be able to choose the channel A or B and which will display the values in the Raw Sensor Data. This way the problem might be fixed.
Platform: Raspberry Pi 4 Model B
SW Version: Meteobridge 5.5 (Feb 11 2023, build 2908), FW 1.3
Ie. while for values smaller than 40μg/m3 it reads the channel A, for above ~40µg/m3 the values in the Raw Sensor Data do not correspond to channel A or B. Especially when the values are quite high, then there is an even greater deviation from the values displayed by PurpleAir on the map her,at the same time.
For example at 20:47 while the meteobridge shows 124µg/m3(1.jpg), on the PurpleAir map the corresponding value is 84.11 µg/m3(2.jpg)!
Ie. Raw Data on the PurpleAir map is in deviation from the Raw Sensor Data of meteobridge at the exact same time points, for values >~40µg/m3
A idea would be in the configuration of the device to be able to choose the channel A or B and which will display the values in the Raw Sensor Data. This way the problem might be fixed.
Platform: Raspberry Pi 4 Model B
SW Version: Meteobridge 5.5 (Feb 11 2023, build 2908), FW 1.3