Author Topic: Apogee, Davis, Meteohelix, netamo weather station  (Read 1103 times)

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Offline raffaello.dimartino

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Apogee, Davis, Meteohelix, netamo weather station
« on: January 16, 2019, 11:52:00 AM »
Just for sharing...my setup to compare various solar radiation shields



From left to right: Davis, Apogee ventilated, meteohelix from Barani design, SIAP (with netatmo module).

http://www.kwos.org/comparison/

Offline Old Tele man

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Re: Apogee, Davis, Meteohelix, netamo weather station
« Reply #1 on: January 16, 2019, 10:00:42 PM »
...and, your comparison results are?
SYS: Davis VP2 Vue/WL-IP & Envoy8X/WL-USB;
DBX2 & DBX1 Precision Digital Barographs
CWOP: DW6988 - 2 miles NNE of Cortaro, AZ
WU - KAZTUCSO202, Countryside

Offline CW2274

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Re: Apogee, Davis, Meteohelix, netamo weather station
« Reply #2 on: January 16, 2019, 10:11:08 PM »
Unless it's the goal of the comparison, the Apogee is aspirated, all the others are passive.

Offline raffaello.dimartino

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Re: Apogee, Davis, Meteohelix, netamo weather station
« Reply #3 on: January 17, 2019, 12:41:54 AM »
Oh it's not a one shot comparison, it's a continuous comparison, day by day.
The apogee is ventilated but you can decide the power on the ventilation and you can also decide the speed of ventilation.
I use the apogee like reference.

With solar radiation major then 400w/mq and wind near 0 km/h you begin to see the differfence between the screens.
Thanks to the specific construction of the meteohelix usually is only 1 degree more the full working ventilated apogee, the Davis and the netatmo (in the SIAP screen) usually is more then 2 degrees then the apogee.

Some other graph in the past is here: http://www.kwos.org/weather/weewx/Compare/

Offline jimmy1913

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Re: Apogee, Davis, Meteohelix, netamo weather station
« Reply #4 on: May 07, 2019, 08:47:35 PM »
I live in South East Indiana and have a Barani shield with a Nimbus Ultra thermometer probe in it,compared to the Davis VP2 aspirated it is dead on it in accuracy after 4 months of observations!

 

anything