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Weather Station Hardware => Barani Design Weather Stations and Accessories => Topic started by: ivano on October 12, 2022, 01:30:10 PM
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Hello everybody,
I open this post to communicate, in agreement with the company, some important news of this brand much appreciated by the most advanced enthusiasts.
The Meteoshield Pro, which many of you will know, a product at the top of quality among the solar screens with natural ventilation, will benefit from an update with the new version, which has now arrived.
to the 3rd generation.
Nothing changes in the original project, which remains almost unchanged, the changes, almost invisible to an inattentive eye, concern the non-visible parts of the screen, i.e. the internal helicoids and the
lower black, further enlarged in size, with a new layout and a new "knurled" effect treatment that further improves performance in solar radiation conditions
reflected and in the possible internal reflections, especially in the early morning hours and when medium / large sensors are used.
Nothing else has been changed, the support bracket and sensor preparation remain identical to the previous version.
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Given the frequent use with Ecowitt probes in the EP version, the company has studied an ideal assembly for this type of probe that allows for the best performance and limiting the
need for accessories in the installation phase, at the following link the instructions and advice for this type of probe.
https://www.baranidesign.com/faq-articles/2022/8/01/how-to-properly-mount-an-ecowitt-temp-humidity-sensor-inside-the-meteoshield-pro (https://www.baranidesign.com/faq-articles/2022/8/01/how-to-properly-mount-an-ecowitt-temp-humidity-sensor-inside-the-meteoshield-pro)
Those who know the Meteoshield Pro well know that, precisely by virtue of its helical shape, it is able to guarantee high performance even in weak ventilation conditions (remember that the
natural ventilation is an important weapon in passive screens to reduce radiation errors) but there are boundary conditions, especially in certain types of installation and in certain areas and periods of the year,
in which natural ventilation is absent or so weak (less than 1 m / s) that it does not guarantee the minimum internal airflow sufficient for proper air exchange.
The ventilated version, which does NOT adopt the ducted sensor, was created precisely for this type of installation, it is a daytime ventilation, therefore it works only in the presence of solar radiation,
albeit minimal, and the power supply is guaranteed by the group of upper solar panels.
The start threshold of the fan is extremely low and its rotation intensity is strictly proportional to the intensity of the solar radiation.
In the absence of solar radiation, therefore at night or with a completely covered sky, or during precipitation, the fan will not operate allowing you to have the same performance as the
Passive Meteoshield Pro.
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Questa scelta è stata fatta per mantenere comunque elevate prestazioni e per evitare i problemi noti delle versioni con sensore intubato:
This choice was made to maintain high performance and to avoid the known problems of the versions with ducted sensor:
- possibility of overcooling in case of precipitation, high humidity, presence of fog
- inaccurate and unusable data in case of ventilation malfunction
P.S this article was written by Mauro Serenello. (Mauro63)
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Hope Barani makes replacement ventilators available aswell in their shop once this is for sale.
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Good evening everyone, first data from the tests at the station, good vision to everyone,
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[ You are not allowed to view attachments ] [tup]
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Report sheet of October: Tn/Tx/AVG
We can clearly see that the Pro3 is mostly the coldest in Tn and the warmest in Tx (less pronounced)
BR
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very soon new setup with the new sht45 probes from sensiron mounted carefully with the technical assistance of an EU friend :)
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very soon new setup with the new sht45 probes from sensiron mounted carefully with the technical assistance of an EU friend :)
Ooh where did you get the sensor chips and the probe casings? :-)
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Ooh where did you get the sensor chips and the probe casings? :-)
hello [tup] I just sent you a PM on your personal email box the one mentioned on your site :)
Have a great weekend
BR
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Good morning everyone, let's resume this topic, with yesterday's data of yesterday 13/01/2023, obviously to be taken with a grain of salt given the period, low solar radiation and low temperatures, they are not the best to make valid comparisons, but they are useful also these conditions to evaluate the behavior of the screens in all weather situations,
[ You are not allowed to view attachments ] good vision to all [tup]
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attn FR :grin:
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it would be interesting to know the heights in the sensors, in mine they are those recommended by barani, also by you?
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it would be interesting to know the heights in the sensors, in mine they are those recommended by barani, also by you?
](*,) well I would say maybe at random .....
but obvious also by us according to the instructions provided by Barani himself ==> max90-min85mm
and with the cap of our sht45 filter also the possibility of placing it 5 mm higher!
then we help ourselves with a 3D print gabarit to adjust ourselves with the various heights
x the Comet with the addition of a support to position the sensor vertically and centrally on the screen .....
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excellent,,, we go the old-fashioned way :grin: [ You are not allowed to view attachments ] but the height is always that, in the comet instead we are at 190mm, even in the rad-14 we are at the right height, looking at the photo you posted, I notice that you have different heights from the specifications, but being a test that's okay, let's go back on the subject, yesterday's report 01/14/2023 [ You are not allowed to view attachments ] ah I forgot, as regards the height in the meteoshield pro we have serious doubts that it is the most efficient height, we are trying other solutions and the results are encouraging, [tup]
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Summer time inbound! Got a wired FARS model up and running recently. Hoping to do some useful comparisons in the coming months.
For those interested, a little write up on controlling fan speed on the model: https://blog.meteodrenthe.nl/2023/04/28/controlling-fan-speed-on-a-barani-design-prototype-fars/
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Interesting reading.
Your PWM-setup with MOSFET certainly superior to my simple setup with switching transistor.
Worth trying!