01-05-2022 05:11 PM - edited 01-05-2022 05:12 PM
We have about 100 dustsensores with a Bosch BME280 as RH/BP and T sensor for sensing ambient conditions. After a while (some months) and a long period of high humidity, the humidity value gets stuck to 100% for some time. After a while the RH drops back to "normal". Still after a while and after beeing stuck on 100% for serveral times the RH signal drops to 0% and no response from the RH signal anymore. What could this be. We operate within the conditions written in the specs.What could this be??
01-06-2022 03:10 AM
From your description "Still after a while and after beeing stuck on 100% for serveral times the RH signal drops to 0% and no response from the RH signal anymore.", we couldn't see that RH signal drops to 0% and no response from your picture. Could you describe this part again? Thanks.
01-07-2022 03:40 PM - edited 01-07-2022 03:42 PM
Dropping to 0% is not visible in this graph. We havent had a BME280 that recovered after going to 0%.
01-11-2022 03:09 AM
Hello woffels,
As we couldn't see it from your test result, could your reproduce your feedback and provide some test data?
01-12-2022 12:02 PM
In the attachment you can find the data. Each minute datapoint is the average of the 60 measurement within that minute. As you can see, the signal of the faulty bme drifts away (up). The healthy bme is a sensor that is about 300 m away from the faulty and i suspect that this one is also drifting away.