Author Topic: WS-2000 Dew Point went haywire  (Read 242 times)

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Offline RoverlandExpeditions

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WS-2000 Dew Point went haywire
« on: September 10, 2019, 10:34:09 AM »
My PWS is less than 1 month old. For the last 2 days, we've had some rain showers but nothing major. This morning I went to check my QC report and it looks like the dew point spiked on the first day of the rains. Not sure how related it is, but that's when it began. See the attached photo for the data. Any ideas? Bad sensor/array? What should/can I do about it? Thanks!
« Last Edit: September 10, 2019, 10:39:08 AM by RoverlandExpeditions »
Ambient Weather: WS-2000 / PM2.5 Sensor {26' AGL}
WU: https://www.wunderground.com/dashboard/pws/KMTBELGR54
CoCoRaHS: MT-GN-18 | Windy: https://www.windy.com/station/madis-F5999
CWOP/APRS: K8FLA | Weathercloud: https://app.weathercloud.net/d2462617535
Certified SKYWARN Spotter | Follow Me On Instagram: @RoverlandExpeditions

Online galfert

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Re: WS-2000 Dew Point went haywire
« Reply #1 on: September 10, 2019, 10:47:10 AM »
Sounds like a warranty replacement is the best action.
WS-2000 & WS-2902A | Ecowitt GW1000 | WeatherBridge (Meteobridge)
WU: KFLWINTE111  |  PWSweather: KFLWINTE111
CWOP: FW3708  |  AWEKAS: 14814
Windy: pws-f075acbe
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Offline Mandrake

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Re: WS-2000 Dew Point went haywire
« Reply #2 on: September 11, 2019, 04:40:14 AM »
I thought dew point was calculated from temperature and humidity (possibly also Barometric Pressure) on the console.
So I cant see the humidity values on your graphs and I suppose that part might have failed in your sensor array which would result in the Dew point calculation going wrong.
Is that correct?
Very Old Maplin N96Y/FO Weather station w/ Cumulus MX

Ecowitt HP2550A (IGUILDFO67)
Ecowitt GW-1000 (IGUILDFO68)
Ecowitt GW-1000 (Mk2) test environment
Ecowitt WH-51 Soil Moisture Sensor
Ecowitt WH-41 PM2.5 AQM Sensor
Ecowitt WS-80 Ultrasonic Anemometer

Offline RoverlandExpeditions

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Re: WS-2000 Dew Point went haywire
« Reply #3 on: September 11, 2019, 09:52:22 AM »
Temp, humidity (update, humidity crashed on 9/9 and is flatlining at 10%), baro are all working fine and are accurate (compared to local airport and other PWS' in the area). I called Ambient tech support yesterday and they said to pull the batteries from the array, cover the solar panel for an hour, reinsert the batteries and hold the reset button down for 1 minute and it should reset itself. I've done that and no change in condition. I thought the panel made the computations so I've also reset that to no change in condition. I'll be calling them back this morning for further instruction.
« Last Edit: September 11, 2019, 08:58:29 PM by RoverlandExpeditions »
Ambient Weather: WS-2000 / PM2.5 Sensor {26' AGL}
WU: https://www.wunderground.com/dashboard/pws/KMTBELGR54
CoCoRaHS: MT-GN-18 | Windy: https://www.windy.com/station/madis-F5999
CWOP/APRS: K8FLA | Weathercloud: https://app.weathercloud.net/d2462617535
Certified SKYWARN Spotter | Follow Me On Instagram: @RoverlandExpeditions

Online galfert

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Re: WS-2000 Dew Point went haywire
« Reply #4 on: September 11, 2019, 11:21:07 AM »
Your humidity sensor has crashed and it is now reporting the minimum humidity 10% it was designed to report and it has flat lined. It is my opinion that the outdoor array is bad.

In your WeatherSnoop program I would disable reporting to CWOP.
It is not proper etiquette to continue to upload knowing bad data to CWOP as it affects all your neighbor's analysis.

The same goes for AWEKAS but they will actually permanently block your bad sensor, so it is best to be proactive.

As for sending bad data to other sites WU, WeatherCloud, ...etc. Well since you don't actually affect your neighbors directly and there are so many poorly sited and configured stations on these other sites it is the wild wild west and anything is game. Still I think from a scientific point of view you also should not want bad data corrupting your historical analysis so it would be best to disable all until you are fixed.



« Last Edit: September 11, 2019, 11:22:44 AM by galfert »
WS-2000 & WS-2902A | Ecowitt GW1000 | WeatherBridge (Meteobridge)
WU: KFLWINTE111  |  PWSweather: KFLWINTE111
CWOP: FW3708  |  AWEKAS: 14814
Windy: pws-f075acbe
Weather Underground Issue Tracking
Tele-Pole

Offline RoverlandExpeditions

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Re: WS-2000 Dew Point went haywire
« Reply #5 on: September 11, 2019, 08:55:58 PM »
Thanks for the reminder about CWOP. I've gone ahead and halted the data uploads until this is resolved. A call back to tech support this morning and they will exchange the array under warranty. Just waiting for them shipping label to be emailed to me.
Ambient Weather: WS-2000 / PM2.5 Sensor {26' AGL}
WU: https://www.wunderground.com/dashboard/pws/KMTBELGR54
CoCoRaHS: MT-GN-18 | Windy: https://www.windy.com/station/madis-F5999
CWOP/APRS: K8FLA | Weathercloud: https://app.weathercloud.net/d2462617535
Certified SKYWARN Spotter | Follow Me On Instagram: @RoverlandExpeditions