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Author Topic: Rain .2mm off  (Read 237 times)

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Offline otronics

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Rain .2mm off
« on: October 15, 2018, 11:18:21 PM »
Hi.

Using a Davis Vantage Vue with Weather Display.

My Davis display is showing .2mm higher rainfall than WD.

ie/ Davis is showing 3.4mm rainfall for the day, WD is showing 3.2mm.

Any idea why and how to correct this?

Thanks.

Offline mihec

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Re: Rain .2mm off
« Reply #1 on: October 16, 2018, 02:53:32 PM »
You probably have the “dew in gauge” enabled in WD. With this option enabled, the first rain 0.2 mm is ignored.

Offline otronics

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Re: Rain .2mm off
« Reply #2 on: October 16, 2018, 04:19:37 PM »
You probably have the “dew in gauge” enabled in WD. With this option enabled, the first rain 0.2 mm is ignored.

Do you know where this option is?

I've had a look around and can't find it.

Thanks.

Offline teal

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Re: Rain .2mm off
« Reply #3 on: October 16, 2018, 06:22:41 PM »
  Hi, control panel,then units & other settings, then rainfall setup, then tick the third box down (ignore first rain of the day(dew in gauge).

  teal.

Offline otronics

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Re: Rain .2mm off
« Reply #4 on: October 17, 2018, 01:00:56 PM »
Found it although the option was not ticked.

Any more ideas?

Thanks.

Offline Martyn

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Re: Rain .2mm off
« Reply #5 on: October 17, 2018, 02:32:56 PM »
As a thought, was it raining around midnight? If the PC clock is behind the Vue console clock by good margin, then a bucket tip may have been registered past midnight on the Vue but before midnight in WD, this will be a likely explanation if the monthly totals match in WD and on the Vue console.

"Control panel -> offsets and initial rain" is where you can adjust rain totals.
Martyn,
Bristol, UK

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Offline otronics

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Re: Rain .2mm off
« Reply #6 on: October 19, 2018, 09:34:05 PM »
Hi.

It wasn't raining around midnight.

The clocks are set correctly (the PC is synced to an NTP server).

The other day, the totals matched!

I will keep an eye on it.

Thanks.