Author Topic: Davis bucket calibration  (Read 4535 times)

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Offline ValentineWeather

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Re: Davis bucket calibration
« Reply #100 on: August 14, 2017, 11:38:17 AM »
Does it have to be cemented into the ground?

Looks like it from photo. The TE for sure is cemented but you supply pipe also.
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Offline Bashy

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Re: Davis bucket calibration
« Reply #101 on: August 17, 2017, 02:08:33 AM »
1st decent rain amount since fiddling, it looks like i am now about +10% per 10mm against the 4" manual
I will dial about back a smidge or 2 once it stops raining, least its making up for all the time its been too low lol :D
Kind regards
Bashy

Offline jgentry

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Re: Davis bucket calibration
« Reply #102 on: August 30, 2017, 05:57:48 PM »
Finally got my RainWise rain gauge installed. I decided not to get the RainWise mount because it's too costly. So with the help of my step father, we did some rednecking...
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Offline jgentry

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Re: Davis bucket calibration
« Reply #103 on: August 30, 2017, 06:03:10 PM »
I used a yellow mark to show where RainWise had a "gold ball" or whatever you want to call it in the middle hole. The directions didn't say anything about it but I just removed it after the gauge recorded over 16" today with a peak rain rate of 72"/h. when in reality I had .66" today. Lol
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Offline CW2274

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Re: Davis bucket calibration
« Reply #104 on: August 30, 2017, 06:10:44 PM »
Finally got my RainWise rain gauge installed. I decided not to get the RainWise mount because it's too costly. So with the help of my step father, we did some rednecking...
Looks good. Hopefully no rain shadow from the ISS and all, but you'll soon find out with the Coco there.
If you want to "spruce" it up some, I'd cut all that excess cable off, it'll look much cleaner and less worry with cable wear from the wind moving it around.
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Offline CW2274

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Re: Davis bucket calibration
« Reply #105 on: August 30, 2017, 06:12:14 PM »
"gold ball" or whatever you want to call it in the middle hole.
:?:
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Offline ValentineWeather

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Re: Davis bucket calibration
« Reply #106 on: August 30, 2017, 07:19:23 PM »
I used a yellow mark to show where RainWise had a "gold ball" or whatever you want to call it in the middle hole. The directions didn't say anything about it but I just removed it after the gauge recorded over 16" today with a peak rain rate of 72"/h. when in reality I had .66" today. Lol

Something's not right for sure. Only time I've seen readings like that wiring was getting wet somewhere. There's a goldish cotter pin  holding the strainer down cut don't recall a ball on it.
Randy, the Aviator is my father in 1963 with his Indian bike

Offline CW2274

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Re: Davis bucket calibration
« Reply #107 on: August 30, 2017, 07:29:44 PM »
OK, now I see. He superimposed a yellow mark over the cotter pin, I though his came with this feature, hence my  :?:.
His high readings certainly do indicate a short though...
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Offline floodcaster

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Re: Davis bucket calibration
« Reply #108 on: August 30, 2017, 09:29:07 PM »
I'm definitely not a DIY electronics guy but I did get my RW connected to my VP2+ recently as well, with many thanks to CW2274 and Valentine Wx for the great info. Connecting directly to the existing RW wire nuts made for an easy task. But I seem to recall having issues until I remembered to disconnect the RW counter. Can't tell in the pic if the counter is connected (and powered), so not sure if this could be causing the erroneous rain data. Otherwise, aside from a possible short already mentioned, maybe it was bouncing in the wind?

In any case, hope you find a solution. I'm very happy having replaced my original tipping bucket with the RW one.
Bill


Offline jgentry

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Re: Davis bucket calibration
« Reply #109 on: August 30, 2017, 09:40:12 PM »
If there is a short in the wiring, where would it be and why? 
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Offline ValentineWeather

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Re: Davis bucket calibration
« Reply #110 on: August 30, 2017, 09:45:42 PM »
I'm definitely not a DIY electronics guy but I did get my RW connected to my VP2+ recently as well, with many thanks to CW2274 and Valentine Wx for the great info. Connecting directly to the existing RW wire nuts made for an easy task. But I seem to recall having issues until I remembered to disconnect the RW counter. Can't tell in the pic if the counter is connected (and powered), so not sure if this could be causing the erroneous rain data. Otherwise, aside from a possible short already mentioned, maybe it was bouncing in the wind?

In any case, hope you find a solution. I'm very happy having replaced my original tipping bucket with the RW one.

Yes good idea not to have the counter hooked up also. I've also found exposed wire tends to short out with water. I had an issue with my TE recently and went out and sprayed wiring with water hose and it started going nuts so replaced line. I think it was just in splice but went ahead and replaced everything.
Randy, the Aviator is my father in 1963 with his Indian bike

Offline jgentry

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Re: Davis bucket calibration
« Reply #111 on: August 30, 2017, 10:00:21 PM »
I'm definitely not a DIY electronics guy but I did get my RW connected to my VP2+ recently as well, with many thanks to CW2274 and Valentine Wx for the great info. Connecting directly to the existing RW wire nuts made for an easy task. But I seem to recall having issues until I remembered to disconnect the RW counter. Can't tell in the pic if the counter is connected (and powered), so not sure if this could be causing the erroneous rain data. Otherwise, aside from a possible short already mentioned, maybe it was bouncing in the wind?

In any case, hope you find a solution. I'm very happy having replaced my original tipping bucket with the RW one.

Yes good idea not to have the counter hooked up also. I've also found exposed wire tends to short out with water. I had an issue with my TE recently and went out and sprayed wiring with water hose and it started going nuts so replaced line. I think it was just in splice but went ahead and replaced everything.

I do not have the counter hooked up to the wire. I left the wiring there just in case I ever needed to calibrate the gauge using the counter. So I'm guessing water is getting into the rj11 phone line?
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Offline CW2274

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Re: Davis bucket calibration
« Reply #112 on: August 30, 2017, 10:01:25 PM »
If there is a short in the wiring, where would it be and why?
Where? Literally anywhere along the stretch. Why? Did you guys accidentally nick/cut the wiring while installing? Mine shorted due to critters chewing through it. If it is shorting, each time it shorts counts as 0.01", that'll get to 16" in a hurry, mine was like 34" before I noticed it. #-o
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Offline jgentry

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Re: Davis bucket calibration
« Reply #113 on: August 31, 2017, 10:39:40 AM »
Maybe the phone line I'm using is bad and needs replacing but here are some pics of how it's hooked together. Maybe y'all can spot something that's wrong. So far, I can't see anything wrong with the phone line wire itself.
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Offline ValentineWeather

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Re: Davis bucket calibration
« Reply #114 on: August 31, 2017, 10:56:33 AM »
Maybe the phone line I'm using is bad and needs replacing but here are some pics of how it's hooked together. Maybe y'all can spot something that's wrong. So far, I can't see anything wrong with the phone line wire itself.

Yellow/green to one side, Red the other black isn't used but I would keep dry anyway.
What happens when you tip the bucket does it do a single count each time or go nuts?
I would just use the phone line for now until you figure out what's wrong so undo the counter wire altogether. If the counter wire ends were getting wet this may have caused the problem.
If you are getting single counts on each tip do a hose test spray over entire phone line and see if it goes nuts.
Randy, the Aviator is my father in 1963 with his Indian bike

Offline CW2274

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Re: Davis bucket calibration
« Reply #115 on: August 31, 2017, 03:42:08 PM »
Maybe the phone line I'm using is bad and needs replacing but here are some pics of how it's hooked together. Maybe y'all can spot something that's wrong. So far, I can't see anything wrong with the phone line wire itself.

Yellow/green to one side, Red the other black isn't used but I would keep dry anyway.

Yes, in the pic I see that he's cut the yellow and used black in it's place. Now whether that fixes the problem...
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Offline jgentry

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Re: Davis bucket calibration
« Reply #116 on: August 31, 2017, 07:59:04 PM »
Thanks for the help and advice gang! Ended up eliminating the excess phone line wire and got rid of the original black wire that connects to the counter. So far I believe that it has resolved the problem.
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Offline CW2274

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Re: Davis bucket calibration
« Reply #117 on: August 31, 2017, 08:01:11 PM »
 =D>
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Offline ValentineWeather

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Re: Davis bucket calibration
« Reply #118 on: August 31, 2017, 09:49:08 PM »
I'm definitely not a DIY electronics guy but I did get my RW connected to my VP2+ recently as well, with many thanks to CW2274 and Valentine Wx for the great info. Connecting directly to the existing RW wire nuts made for an easy task. But I seem to recall having issues until I remembered to disconnect the RW counter. Can't tell in the pic if the counter is connected (and powered), so not sure if this could be causing the erroneous rain data. Otherwise, aside from a possible short already mentioned, maybe it was bouncing in the wind?

In any case, hope you find a solution. I'm very happy having replaced my original tipping bucket with the RW one.

Nice, It works just as well as the TE gauge at 1/4 the price.

Quote from: jgentry
link=topic=32420.msg331431#msg331431 date=1504223944
Thanks for the help and advice gang! Ended up eliminating the excess phone line wire and got rid of the original black wire that connects to the counter. So far I believe that it has resolved the problem.

Good deal
Randy, the Aviator is my father in 1963 with his Indian bike

Offline jgentry

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Re: Davis bucket calibration
« Reply #119 on: August 31, 2017, 11:30:58 PM »
I'm definitely not a DIY electronics guy but I did get my RW connected to my VP2+ recently as well, with many thanks to CW2274 and Valentine Wx for the great info. Connecting directly to the existing RW wire nuts made for an easy task. But I seem to recall having issues until I remembered to disconnect the RW counter. Can't tell in the pic if the counter is connected (and powered), so not sure if this could be causing the erroneous rain data. Otherwise, aside from a possible short already mentioned, maybe it was bouncing in the wind?

In any case, hope you find a solution. I'm very happy having replaced my original tipping bucket with the RW one.

Nice, It works just as well as the TE gauge at 1/4 the price.

Quote from: jgentry
link=topic=32420.msg331431#msg331431 date=1504223944
Thanks for the help and advice gang! Ended up eliminating the excess phone line wire and got rid of the original black wire that connects to the counter. So far I believe that it has resolved the problem.

Good deal

Awesome!
Davis Vantage Pro2. SHT 31. WU: KXALJEMI2 & KALTHORS2 CWOP: C6353 & C6358