Topic: SHT31 Humidity Calibration

[CW7491]

For those of you who use the SHT31 and some sort of software slope/offset calibration to deal with the well-documented biases, what kind of calibration setting have you found to work best?

[CW2274]

I feel luckier than most here due to my dry climate evidently helping mitigate the bias, so I've applied only a -2%. This works very well between ~7 and 93%, then the -2% begins reflecting itself on both ends.
All this depends on what sensor you happen to have as well, I've tested six 31's.

[hwcorder]

I only the use the 31 for temperature now but when I also used it for humidity I used the -2 setting in weather display which equates to -5% once you get down into the mid ranges. No offset was needed since it seems to hit 100% regularly. 

[ValentineWeather]

I'm using Cumulus which doesn't have the same options as WD which is superior with the slope adjustment.
 
With cumulus limited correction, I can drop humidity 1-3% midranges and still have the ability to reach 100%. Numbers I have plugged in are -4% humidity and use multiplier 1.050.

[mcrossley]

I'm using Cumulus which doesn't have the same options as WD which is superior with the slope adjustment.

I'll add a second order correction factor for Humidity (will work same as the current temperature correction) into the next build of MX.

[ValentineWeather]

I'm using Cumulus which doesn't have the same options as WD which is superior with the slope adjustment.

I'll add a second order correction factor for Humidity (will work same as the current temperature correction) into the next build of MX.

That would be awesome. Hopefully, I can painlessly switch to MX. I've never tried it out.
If we could shave 4-6% in the mid-range would be awesome and still reach 100%.