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faulty temperature reading

Discussion and questions about Cumulus weather station software version 1. This section is the main place to get help with Cumulus 1 software developed by Steve Loft that ceased development in November 2014.
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sm7ovk
Posts: 9
Joined: Mon 21 Nov 2011 1:16 pm
Weather Station: WM918
Operating System: Windows XP
Location: Sweden

faulty temperature reading

Post by sm7ovk »

Hi,
in October last year my WM918 had a temperature reading of 51.5degrees Celsius. This isn't "possible" were I live and we have never had this hot, especially not in October... This has only happened once - have anybody else seen this? Hardware fault as a water leak?
Would it be possible to filter this type of spikes in the software? After all if several readings before and after are very much lower or higher then this type of spike should be sorted out, (?).

Regards
Jens
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steve
Cumulus Author
Posts: 26672
Joined: Mon 02 Jun 2008 6:49 pm
Weather Station: None
Operating System: None
Location: Vienne, France
Contact:

Re: faulty temperature reading

Post by steve »

Cumulus does have a spike removal facility, but it only applies to La Crosse and Fine Offset stations, because those are the only stations that I have ever seen produce spikes - and they do so regularly.

I could consider adding spike removal to the WM918, but I can't see me getting around to it for some time, as I have so much to do already, the WM918 is obsolete, and after all you have only had this happen once.
Steve
sm7ovk
Posts: 9
Joined: Mon 21 Nov 2011 1:16 pm
Weather Station: WM918
Operating System: Windows XP
Location: Sweden

Re: faulty temperature reading

Post by sm7ovk »

Thanks for fast reply. No hurry, it has only happened once.
I have had some strange gust too, but nothing to worry about. I'll check my installation too since I have long cables and the are reconnected at two places from my tower down to the WM918/computer.

Another thing about the temperature, my outdoor temperature readout seems to be about 2 degrees higher than actual. It hasn't always been like this so something might have happened with the sensor, (?). Is it possible to trim in the software?

Regards and Happy New Year!
Jens
Last edited by sm7ovk on Wed 02 Jan 2013 8:16 pm, edited 1 time in total.
User avatar
steve
Cumulus Author
Posts: 26672
Joined: Mon 02 Jun 2008 6:49 pm
Weather Station: None
Operating System: None
Location: Vienne, France
Contact:

Re: faulty temperature reading

Post by steve »

sm7ovk wrote:Another thing about the temperature, my outdoor temperature seems to be about 2 degrees higher than actual. It hasn't always been like this so something might have happened with the sensor, (?). Is it possible to trim in the software?
You can use the calibration settings to apply an offset and/or a multiplier.
Steve
sm7ovk
Posts: 9
Joined: Mon 21 Nov 2011 1:16 pm
Weather Station: WM918
Operating System: Windows XP
Location: Sweden

Re: faulty temperature reading

Post by sm7ovk »

OK, thanks - I'll try that!
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