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Re: WS-80 Ultrasonic Wind sensor array

December 22, 2019, 8:15 am
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It also surprised me a bit. I expected the heater to turn on automatically. However, there is such a recommendation in the manual:

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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 a 5V/1A power to the sensor heating element for melting
accumulated snow or ice, which can influence wind measurement accuracy
significantly.

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When outdoor temperature is above 10.0C ( 50.0F), it is forbidden to
feed power to the heating thermostat which can lead to permanent
damage due to excessive heat built up inside and cause unpredictable
damage to the system itself or data accuracy.

That's why I put the cord from the heater in the attic and I am going to plug it in if necessary, but I'm not at home all week, so I don't know if I can always predict the coming snowstorm. For now, we have nice weather without falling temperatures below freezing.
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Re: WS-80 Ultrasonic Wind sensor array

December 22, 2019, 8:15 am
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I use no smart items/assistants as I have no use for the, as I expect many others don't as well It leads me back to my first post regarding this; they should have implemented a way of controlling the heater via the temp sensor that comes with the WS-80.

Why make a product like this and expect the majority of people to go out and buy additional (expensive) items to get part of the hardware to work as intended? I may have just about understood if Ecowitt sold something separately to cover this, but they don't, which means you have to go somewhere else just to use it properly. Very silly.
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Re: WS-80 Ultrasonic Wind sensor array

December 22, 2019, 8:21 am
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Quote from: mark014 on Today at 11:15:37 AM
It also surprised me a bit. I expected the heater to turn on automatically. However, there is such a recommendation in the manual:

Quote
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 a 5V/1A power to the sensor heating element for melting
accumulated snow or ice, which can influence wind measurement accuracy
significantly.

Quote
When outdoor temperature is above 10.0C ( 50.0F), it is forbidden to
feed power to the heating thermostat which can lead to permanent
damage due to excessive heat built up inside and cause unpredictable
damage to the system itself or data accuracy.

Wow - that second paragraph says it all...

I'll give you an example; Many times the forecast has said that sub-zero temps are unlikely overnight here. You go to bed and wake up to find that the temp has gotten down below -3. So, if you decide to turn it on before you go to bed and then you go out for the day and forget to turn it off, and them temp goes above 10°C, you're stuffed!

Having no safety measures in place to stop that happening is just plain stupid.
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Re: newbie with some Ecowitt equipment and site placement questions

December 22, 2019, 9:09 am
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Quote from: safetythird on Today at 11:02:54 AM
Galfert, thanks very much for your reply. Yes, I was aware than all the sensors communicate on 868 not wifi but didn't realise it had greater penetration through walls that 2.4ghz, that might be very useful to know and might change my thoughts on where to site things.

In the first picture, you can see the telephone pole in the garden which is close to the house and I'm wondering whether I could mount the anemometer on that or if the trees would be affecting it. If not, then if I bought the separate sensors, I could put the rainguage on a fence post 30m from the house with the g1000 on a windowsill which should give suitable connection.

have to walk around and have another look at the place now I know the sensors might be able to be put closer to the house.

The important thing for the GW1000 if you opt for that solution is for that to have 2.4gHz Wifi connectivity if you wish to upload the data to ecowitt.net and/or other services like Weather Underground. You can always add  a HP2550 console for indoors later if you wish or use a Tablet and software like GW1000Live to view your data from the GW1000.
The GW1000 has very good sensitivity in reception for the various sensors that transmit the weather data to it, so you should be fairly OK for most of your proposed options, particularly if the GW1000 is by a window and has line of sight to its sensors. To be honest its fairly rare to have a perfect spot for your sensors and most usually have some form of compromise. If you find that the trees for instance are causing too much interference then you can always move the sensor later on. Another aspect to remember is that the installations are not install and forget. You will need to put them somewhere you can get to clean every few months (especially rain gauge) and for battery swaps.

If you are interested in the GW1002 package then the manual can be found here:
http://www.ecowitt.com/upfile/201909/GW1002%20Manual.pdf

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Re: WS-80 Ultrasonic Wind sensor array

December 22, 2019, 3:17 pm
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Nevertheless, the WS-68 sensor better shows the subtle changes in the weakest wind, with the data updated on the console less frequently - every 16.5 seconds.

In the same calm weather, the WS68 sensor returns following wind speed values: 2.9, 2.2, 1.8, 1.4, 1.1, 0.7, 0.4 km/h.
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Re: WS-80 Ultrasonic Wind sensor array

December 22, 2019, 3:41 pm
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So in effect a wash. .75 MPH delta vs 14 seconds lag in update.
Seems like WS68 has WS80 beat.
Thanks
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Re: Misol - Fine Offset oem. - Humidity sensor gone mad; any alternative replacement

December 22, 2019, 6:15 pm
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Re: Misol - Fine Offset oem. - Humidity sensor gone mad; any alternative replacement

December 22, 2019, 6:25 pm
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Wouldn't temp with no shield typically start  out lower at dawn after cooling faster than sensor in a shield overnight because of faster at night radiational cooling ?
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Re: Misol - Fine Offset oem. - Humidity sensor gone mad; any alternative replacement

December 22, 2019, 7:05 pm
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I think not. The the sensor without a shield would not necessarily cool faster. Because it would be more exposed to radiant thermal mass energy (heat) from the proximity of the building structure, foundation (floor) and because of the possible greenhouse effect of a roof. So in this case it is the location that is the critical issue, not an unshielded sensor.
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Re: WS-80 Ultrasonic Wind sensor array

December 22, 2019, 11:56 pm
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Quote from: Mapantz on Yesterday at 11:21:07 AM
I'll give you an example; Many times the forecast has said that sub-zero temps are unlikely overnight here. You go to bed and wake up to find that the temp has gotten down below -3. So, if you decide to turn it on before you go to bed and then you go out for the day and forget to turn it off, and them temp goes above 10°C, you're stuffed!

Having no safety measures in place to stop that happening is just plain stupid.

How about a smart flug and IFTTT?
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Re: Misol - Fine Offset oem. - Humidity sensor gone mad; any alternative replacement

December 23, 2019, 12:13 am
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Re: WS-80 Ultrasonic Wind sensor array

December 23, 2019, 12:33 am
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Quote from: fkapp on Yesterday at 06:41:20 PM
So in effect a wash. .75 MPH delta vs 14 seconds lag in update.
Seems like WS68 has WS80 beat.
Thanks

I don't understand that reasoning?
So a sensor that reads down to a much lower level in terms of sensitivity and updates far quicker is worse than the traditional cup sensor?
I have seen days here where my Tri-Wing sensor has been recording zero wind as its so light and my WS80 has been happily recording 1-2Mph wind.
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Re: WS-80 Ultrasonic Wind sensor array

December 23, 2019, 2:49 am
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About ws80 heater question, I hope this can be useful  ;)
Mauro

 [ You are not allowed to view attachments ]
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New with a Froggit WH3000SE, DP1500 and DP50 and have some questions

December 23, 2019, 3:51 am
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Hi all! I recently created this tipic: https://www.wxforum.net/index.php?topic=38259 asking for help regarding a new weather station to replace my complete Netatmo weather station as i had some issues with it.

I've now recieved and installed this set: https://www.froggit.de/product_info.php?info=p422_dp1500-wi-fi-wetterserver-usb-dongle-inkl--3-x-dp50---wh3000se-all-in-one-aussensensor.html and so far i like it! Even though the setup was okay easy, it wasn't as easy and intuitive as my Netatmo station, but the data is updated much more frequently and if its more precise i would much rather prefer this one (as that was my main issue with Netatmo, readings were all over the place). Thanks for the recommendation Mandrake!

Now to my questions:

  • Is there any app that lets me add widgets to my Android homescreen containing the weather stations data?
  • I assume DP50 sensor can be used outside as well?
  • Using Wunderground, can i change the units on wind speed?
  • The WH3000SE sensor array seems to have a small solar panel on it. Will this charge the batteries if i insert rechargable ones or what is that for?
  • Is there a way i can see the remote sensors (WH3000SE, DP50 etc.) signal strenght and battery status?
  • Can you recommend any apps to use with this?
  • How do i change which sensors are uploaded to wunderground?
  • Whats the best compatible weather cloud service to use with these sensors? Its compatible with Wunderground, Weathercloud and WOW out of the box as far as i undderstand it
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Re: Misol - Fine Offset oem. - Humidity sensor gone mad; any alternative replacement

December 23, 2019, 4:04 am
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Re: New with a Froggit WH3000SE, DP1500 and DP50 and have some questions

December 23, 2019, 4:22 am
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OK, in order!
1. No app that provides widgets yet, but I am sure that will come.
2. Yes, can be used outside but if in an exposed position we recommend that you purchase the additional davis screen from Ecowitt to place it in.
3. I am pretty sure that you can change the units you measure/display
4. No, the sensor array uses a super capacitor to power the array and the batteries are for when the capacitor is depleted (ie Nighttime or dark winter days). So no rechargeables, we recommend that you use lithium AA cells for the sensor array.
5. Yes, you can see this on the Console in settings and also in the WS-View app sensor ID page. Though not all sensors report battery status I think.
6. GW1000Live is the latest app to use on Android to view the GW1000 data. Otherwise if you have a raspberry Pi, you can use a number of app to read the GW1000 such as CumulusMX and WeatherDisplay and WeeWx
7. Only the primary sensor array gets uploaded to Wunderground
8. Ecowitt.net is the best as that records and displays all available data you have.

Hope that helps
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Re: WS-80 Ultrasonic Wind sensor array

December 23, 2019, 4:39 am
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I'm actually quite pleased to see that this is becoming a thing. The ultrasonic wind sensor was one of the reasons i fell for Netatmo back in the day, but their solution is so imprecise, that it was downright unusable for me.

Since i just got my froggit weather station its great to hear that this can be connected to the DP1500 if i understand it correctly.

Could be interesting to compare this to the Netatmo anemometer that i aldready have.
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Re: New with a Froggit WH3000SE, DP1500 and DP50 and have some questions

December 23, 2019, 4:53 am
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1. Although not a widget, I set a home screen icon shortcut with Chrome on Android. It looks like an app in this regard and quickly gets me to Ecowitt.net. There is also the WU app you can install for main sensors. The WU app is currently in the middle of a redesign. You can also try the GW1000live app that is also in development by Brian of Weather-Display.
2. You already have an outdoor sensor for temperature. Not very many cases where you would need a second outdoor sensor....unless you had an outdoor area that would have a different temperature than the normal outdoor ambient temperature. Ecowitt has a radiation shield part you can use RS-00001
3. In WU you can click on the gear icon on the top right and then select °F or °C and it will change all units between imperial and metric.
4. The batteries are only used when the super capacitor is insufficient (on really cloudy days)
8. Although Ecowitt.net is the only directly supported service that will show you all your sensors there is a way to add to your station to get these sensors to show up in other places. You can use a Meteobridge and then license it for Ambientweather.net  and then all the sensors show up there. Ambientweather.net is like Ecowitt.net very much in look and feel as they are cut from the same cloth. But Ambientweather.net has some added API features where it will integrate with Alexa and Google Assistant and other 3rd party software. You can also use software like Cumulus MX, Weather-Display to see your sensors.

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Re: Misol - Fine Offset oem. - Humidity sensor gone mad; any alternative replacement

December 23, 2019, 8:06 am
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Re: Misol - Fine Offset oem. - Humidity sensor gone mad; any alternative replacement

December 23, 2019, 8:14 am
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Well I suppose a one time calibration is not out of order.

If you make a calibration offset of 2°C and then it tracks perfectly at all times of the day through different weather then that is what is required. But if you put in an offset of 2°C and then you notice that on nights and cool days that the temperature reading is 2°C too low then perhaps better sensor siting and shield protection might be a better solution. But I will say that every location is different and you should not be comparing yourself to neighbors. Empirical testing requires that you use another verifiable thermometer at your location.
 
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