@wtc-peg wrote:
1) Could you advice me for a domestic product that I could put close from the sensor (ie: somes tens of cm below) to get IAQ higher than 300, fror about 3 or 4 hours ? I tried with smelty polyester resins (expecting for "embeded styren" to act), but I never get more than 200 or 250 IAQ and even it was decreasing after some hours and my resin was still very smelty...
If you are using the standard IAQ output, I believe the observed behaviour could be explained by the self-calibration process. The IAQ output learns from the air quality history, and automatically adjusts its settings so that 25IAQ corresponds to typ. "good air" observed, and 250IAQ to typ. "bad air". Therefore if you expose the sensors to bad air for several hours during your tests, you could be observing the IAQ output learning and adjusting to it. To confirm this, you could have a look at the sIAQ output, that will probably show much larger IAQ values during the same period.
@wtc-peg wrote:
2) On the curves below the sensor is outside fro 2 days, during last night humidity climbed a little and then the IAQ climbed up to 250 without any apparent reason (outside). In the morning even if humidity decreases the IAQ stays at th same level. Do you have any idea of what I could do wrong ?
Seeing raw sensor data (i.e. raw temp, humidity and gas values) could possibly give us a hint here, but without knowing the environmental conditions, we cannot tell from the graph alone what is causing this behavior, it could as well be due to some compounds in the outside air during the test.
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