Author Topic: Where is my Dew Point?  (Read 377 times)

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Offline Waimarie

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Where is my Dew Point?
« on: January 30, 2020, 02:43:47 PM »
Been running Cumulus MX since I got the new station and all looks good, except Dew point constantly reads zero.  All other readings/gauges are where I would expect them.    Ecowitt.net and Weathercloud show it fine, it's just Cumulus MX.

Can anyone suggest why this is happening and how i can fix it?  Thanks

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Fine Offset WH3081 (Deceased)
Mi.Sol  WH2900C
Ecowitt GW 1000 915MHz
Ecowitt GW 1000 433MHz
Ecowitt WH31
Ecowitt WH51
Ecowitt WH57
WU: IFEATH6
WOW: 910486001



Offline mcrossley

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Re: Where is my Dew Point?
« Reply #1 on: January 30, 2020, 03:01:41 PM »
What station do you have?
Mark

Offline waiukuweather

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Re: Where is my Dew Point?
« Reply #2 on: January 30, 2020, 03:27:08 PM »
GW1000 I would suggest as Ecowitt is mentioned

Offline Waimarie

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Re: Where is my Dew Point?
« Reply #3 on: January 30, 2020, 03:43:57 PM »
GW1000 I would suggest as Ecowitt is mentioned

Kiwi genius at work there!  WH2900C through a GW1000

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« Last Edit: January 30, 2020, 06:59:55 PM by Waimarie »
Fine Offset WH3081 (Deceased)
Mi.Sol  WH2900C
Ecowitt GW 1000 915MHz
Ecowitt GW 1000 433MHz
Ecowitt WH31
Ecowitt WH51
Ecowitt WH57
WU: IFEATH6
WOW: 910486001



Offline Waimarie

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Re: Where is my Dew Point?
« Reply #4 on: January 31, 2020, 01:48:45 AM »
******DING!********

I had a moment of brilliance :lol:

Looked through the settings and there it was .... a tick box for Cumulus to calculate the dew point :oops:

Box ticked, dew point now revealed [tup]

 [ You are not allowed to view attachments ]
Fine Offset WH3081 (Deceased)
Mi.Sol  WH2900C
Ecowitt GW 1000 915MHz
Ecowitt GW 1000 433MHz
Ecowitt WH31
Ecowitt WH51
Ecowitt WH57
WU: IFEATH6
WOW: 910486001



Offline mcrossley

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Re: Where is my Dew Point?
« Reply #5 on: January 31, 2020, 05:59:53 AM »
OK, that will do it, but the GW1000 should be providing a dew point value.
Could you turn on data logging for a few minutes and then send me the corresponding log file?
Mark

Offline galfert

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Re: Where is my Dew Point?
« Reply #6 on: January 31, 2020, 08:56:30 AM »
I noticed the same problem when I tested Cumulus MX with my GW1000. The only way to get Dew Point was to have Cumulus MX calculate it. I can confirm that the GW1000 does send Dew Point via the local API from having read the API documentation and worked with the API myself. I didn't think much of this issue at the time because I thought it was just a developer programming choice for whatever reason.
Ecowitt GW1000 | Meteobridge (WeatherBridge)
WU: KFLWINTE111  |  PWSweather: KFLWINTE111
CWOP: FW3708  |  AWEKAS: 14814
Windy: pws-f075acbe
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Offline mcrossley

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Re: Where is my Dew Point?
« Reply #7 on: January 31, 2020, 09:24:42 AM »
@galfert Likewise, if you could send me a log with the data logging switched on I'll take a look. I don't have any sensors for my GW1000 I have to test against, so some errors are not obvious.

The code is there to decode dew point, but it obviously isn't working for some reason. If I thought it didn't send the data, then I would have CMX automatically enabling the "calc it myself" option.
Mark

Offline Waimarie

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Re: Where is my Dew Point?
« Reply #8 on: January 31, 2020, 06:43:45 PM »
Could you turn on data logging for a few minutes and then send me the corresponding log file?

I would, if I could work out how to.  I see "Data Logs" in the menu bar but not how to turn on, and then what file do I need to send?

Ian in NZ, (but still a Cheshire boy)
Fine Offset WH3081 (Deceased)
Mi.Sol  WH2900C
Ecowitt GW 1000 915MHz
Ecowitt GW 1000 433MHz
Ecowitt WH31
Ecowitt WH51
Ecowitt WH57
WU: IFEATH6
WOW: 910486001



Offline mcrossley

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Re: Where is my Dew Point?
« Reply #9 on: February 01, 2020, 04:52:27 AM »
Under Settings | Station Settings | Options
Enable "Data logging"
Let it run for a few minutes, then switch it off again.
Send me the latest log file in the "MXdiags" folder.
Cheers
Mark

 

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