actual_thb0_hum_abs variable with wrong values

[wfpost]

Does actual_thxx_hum_abs stand for absolute humidity?
If so, I wonder if it is either not implemented or showing wrong values, because no matter of what rel. humidity my sensors are displaying the ...hum_abs are always on 0.7 :unsure:

But shouldn´t absolute humidity not show the grams of water per cubic meter?

Any explanation or help appreciated.
Thanks

[admin]

yes, it should be gramm of water per cubic meter air.

I changed the formula, so please give the next update a try.

[wfpost]

thanks.

I updated to 4.3 and saw the change which looked good, but today with the really first summer day here in Southern Germany humidity reading are as follows:

Rel. Luftfeuchtigkeit: 48%
Abs. Luftfeuchtigkeit: 10.2 g/m³

Compared with
Yesterday readings:
Rel. Luftfeuchtigkeit: 92%
Abs. Luftfeuchtigkeit: 9.2 g/m³

there must be still an error with the maths, because lower rel.hum should correspond with lower water in grams/m³.

e.g. the exported data to wswin show for today average of
Rel. Luftfeuchtigkeit: 36%
Abs. Luftfeuchtigkeit: 8.66 g/m³

[sevenless]

Is that necessarily true? Surely you could have a cold day with very high humidity that has less actual vapor in the air than a hot day with relatively low humidity due to the way vapor, pressure and temperature are related.

Without knowing the temperature at the time of the above data points we can't make a judgment.

See the table here for instance and compare +25C at 50% RH (11.5 g/m^3 abs) to +10C at 90% RH (8.5 g/m^3 abs).