Hi!
"There’s a built-in thermostat inside the anemometer sensor to control the power supply for the heat plate, which will automatically turn on below 0°C (30°F) and automatically turn off above 10°C (50°F)."
Where exactly did you find this?
It would really be nice but in the WS80-doc there's still said:
There’s a built-in heat plate in the 6-in-1 sensor package body, if the lowest temperature at your place is below -3°C, or 26.6°F, and the weather is mostly snowy or rainy, then you may need to activate the heater by supplying an external 5V/1A power to the sensor heating element for melting accumulated snow or ice, which can influence wind measurement accuracy significantly.
Ah!
I finally found this in the HP2553-manual.
Are other WS80s now sold in this bundle (newer hardware revision) or is the manual for the WS80 simply outdated?
I agree: I would like this behavior!
Regards, Oliver
In my perception both statements are correct, not contradictory and not excluding each other.
#1 (blue) describes what happens when the heater is "switched on", i.e. connected to a power providing source and certain conditions are met.
#2 (red) describes what it the reason why you should have it connected ("switched on").
(in order to avoid that at either T <= -3°C or snow on the top of the WS80 will affect the accuracy of the measurement, you should have the heater switched on [switch on meaning have in electrically powered], either all the time or when such weather conditions are to be expected - it will then (#1) already at <= 0°C turn the heater on and keep in on until the temperature rises again above 10°C).
#2 is not very explicit regarding the behaviour of the thermostat - but still correct. It doesn't say that you have to wait until temperature drops below -3°C to switch on the heater; it means to say, let me paraphrase, if you live in a place where the temperature drops below -3°C at any time, you better use/activate the heater by connecting it to a power source. There are places where this never occurs - so the heater needs no power supply as it wouldn't be needed and the thermostat will never switch the heater on.
Maybe Ecowitt could, in a Manual update, combine both statements
By the way, my missing power supply, which had been part of my WS80 order but was somehow missing, is meanwhile on its way from China. ETA first week of January 2021.
The cable from the WS80 to the power supply came but the transformer + plug was missing. Took two months.
Maybe they are even building the power supplies for Europe only on demand, like the 868 MHz sensors.
