How come the temperature is different on the console than on the app/dashboard when they both get data from the same 5 and 1 sensor?

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Temperature discrepancy.. dashboard vs console.
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Austin Ward

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Posted 4 months ago

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George D. Nincehelser

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You might have a "calibration" applied on either your console or myAcurite.

Also, the dashboard updates every 5 minutes.  The console updates temperature every 36 seconds.  That could introduce a little reading mismatch.
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clifton Liles

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My guess would be timming.   That is, one of them has gotten an update and the other has not.  
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Austin Ward

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I am new to this as of this week. But I have seen the difference all day today... and the difference between the teo seemed to increase as the day heated up. Thank you for your reply. Any other ideas?
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Austin Ward

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So I did change the calibration on the dashboard back to zero... I had changed it a bit as it was off a degree.... it is closer now. But will this persist? I think it is odd that one sensor will give two readings.... why is there a need for a calibration when the data comes from one source. Just a bit confused.
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Austin Ward

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One other question. By the way thankyou all for your help. I understand that it sends wind data to the console every 18 seconds... what if a wind gust hits it in the middle of that 18 second window and not on the 18th second... do I miss the high wind reading of the gust?
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George D. Nincehelser

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The sensor can only give one reading.  It will only be altered if you have entered a calibration in myAcurite (which will only show on myAcurite) or on your console (which will only show on your console).

If you happen to be using the PC Connect software for reporting to the internet, calibrations made within the PC Connect software WILL be reported to myAcurite and to wunderground.

On to wind readings...

18 seconds is the reporting rate.  It actually has nothing to do with the wind speed sampling.

The 5n1 calculates the wind speed by counting the number of cup rotations in a 4-second window.  At the 18-second reporting interval, it reports the highest wind speed it has encountered for that interval.
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Austin Ward

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Then I would assume that it takes this cup count over 4 seconds four different times within the 18 second window and averages those 4 cup counts. And then sends that number to the console. Am I correct?
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George D. Nincehelser

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That's a reasonable interpretation, but you have to wonder what happens in those other two seconds.  ;)

It may be that the 4-second window is "sliding" across the 18-second interval rather than being "fixed", but the documentation isn't clear.

The 4-second window was described in the early 5n1 data sheets, but I've lost my copy.
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George D. Nincehelser

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I scrounged around the internet and found a copy of that datasheet.

I've put it in my dropbox and it should be available at this link if you're interested.

https://www.dropbox.com/s/khxzm1d49j565bt/Five-in-One-Professional-Weather-Station-Specifications.pd...
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Austin Ward

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Thanks!
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Austin Ward

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Referencing this document.... the wind peak speed value is based over highest wind value over last hour.....sooooo is this the highest displayed value based on the cup rotation during 4 seconds of the 18 seconds..... or the highest cup speed over 60 minutes not based on the " 4 second rule" .... haha
(Edited)
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George D. Nincehelser

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Wind peak speed is just a function of that particular display.  It's not a measured value from the 5n1 sensor.

That peak speed would be based on the highest 18-second report in the past hour.
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Austin Ward

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Ugghhh... alright. Thanks man.