Author Topic: Vantage Pro2 rain gauge problems  (Read 725 times)

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Offline KB9HGI

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Vantage Pro2 rain gauge problems
« on: May 26, 2019, 05:55:52 PM »
I have a problem with the rain gauge on my Vantage Pro 2 Fan Aspiration. The rain quit showing on my console. I went up on the tower and its not blocked and the buckets does move and clunk when you pour water but not showing anything on the console. Could it be that reed switch and how hard are they to swap out? I have swapped out my Super cap because it was leaking and would no longer hold a charge and was draining the battery. Now i need to get the rain gauge going again. I guess you would expect this after 15 years..lol

Offline Mattk

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Re: Vantage Pro2 rain gauge problems
« Reply #1 on: May 26, 2019, 06:14:44 PM »
I was reading well I until the 15 year bit .... yes it's getting on. At that age and without isolating and ISS issues then it could be 1 or several of, reed switch, cable, soldered connections or modular plug? 

Offline lightmaster

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Re: Vantage Pro2 rain gauge problems
« Reply #2 on: May 26, 2019, 06:34:18 PM »
Davis recently released a single spoon tipping bucket that works with all VP2s and would replace everything from the bucket up to (but not including) the transmitter PCB. If the issue is with any of that, and those are the most exposed parts and the moving parts, you'd be good. If not, then you know the problem is on the transmitter PCB which I would think is much less likely assuming all other data is getting to your console correctly.
« Last Edit: May 26, 2019, 07:24:03 PM by lightmaster »

Offline CW2274

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Re: Vantage Pro2 rain gauge problems
« Reply #3 on: May 26, 2019, 07:09:57 PM »
Davis recently released a single spoon tipping bucket that works with all VP2s and would replace everything from the bucket up to the transmitter PCB.
For the sake of the OP, your statement and link you provided are contradictory. All that is replaced is the tipping mechanism as pictured, not "everything from the bucket to the PCB".

Offline lightmaster

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Re: Vantage Pro2 rain gauge problems
« Reply #4 on: May 26, 2019, 07:29:50 PM »
Davis recently released a single spoon tipping bucket that works with all VP2s and would replace everything from the bucket up to the transmitter PCB.
For the sake of the OP, your statement and link you provided are contradictory. All that is replaced is the tipping mechanism as pictured, not "everything from the bucket to the PCB".

Is that more explicitly stated now? I said up to the PCB, but I didn't mean the PCB itself. Tipping spoon, Reed switch, wire, RJ11 connector are all replaced.

Also, my impression from forum posts is that it is as accurate as the previous 2 spoon bucket, if not more accurate, and more forgiving of imbalance than the 2 spoons version.
« Last Edit: May 26, 2019, 07:46:51 PM by lightmaster »

Offline CW2274

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Re: Vantage Pro2 rain gauge problems
« Reply #5 on: May 26, 2019, 07:35:22 PM »
Holy crap, chill out. I just wanted to make sure the OP wasn't confused. Damn...

Offline lightmaster

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Re: Vantage Pro2 rain gauge problems
« Reply #6 on: May 26, 2019, 07:50:10 PM »
Holy crap, chill out. I just wanted to make sure the OP wasn't confused. Damn...

Apologies. Painting outside in 95 degree sunlight and heat's got my temper up...

I read your message as that you were implying I was attempting to deceive the OP when I was just trying to be helpful.

Offline CW2274

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Re: Vantage Pro2 rain gauge problems
« Reply #7 on: May 26, 2019, 08:07:08 PM »
Holy crap, chill out. I just wanted to make sure the OP wasn't confused. Damn...
I read your message as that you were implying I was attempting to deceive the OP
:eek: No, of course not... It just seemed a little confusing, at least to me (frankly, not surprising anymore).

BTW, I know all about the heat and what comes with it... ;)

Offline WheatonRon

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Re: Vantage Pro2 rain gauge problems
« Reply #8 on: May 26, 2019, 08:40:13 PM »
I have a problem with the rain gauge on my Vantage Pro 2 Fan Aspiration. The rain quit showing on my console. I went up on the tower and its not blocked and the buckets does move and clunk when you pour water but not showing anything on the console. Could it be that reed switch and how hard are they to swap out? I have swapped out my Super cap because it was leaking and would no longer hold a charge and was draining the battery. Now i need to get the rain gauge going again. I guess you would expect this after 15 years..lol

After 15 years—swap out the rain tipper and don’t mess soldering in a new reed switch—you got your money’s worth. As I stated elsewhere in this Forum, the new spoon tipper is a small improvement over the two bucket version you have but it is better solution than trying to put a bandage on a 15 year old system.  Ryan at Scaled Instruments has the new tipper for about $49 plus shipping. If you have the money, I would also consider buying a whole new ISS that has the new spoon tipper in it thereby updating the other components in the system too. OR, if you are an optimist (some would say crazy) you could wait for a VP3 to arrive!

If you don’t like my suggestions above, you can call Davis support and they may mail you a new reed switch for free (they did for me on my then 10 year old VP2 system) and yes a soldering iron and patience is all you need. Will that fix the problem? Who knows. In my situation, it didn’t fix my issue. I had to replace the rainbase including a new tipper system.
« Last Edit: May 26, 2019, 10:41:05 PM by WheatonRon »
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Offline KB9HGI

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Re: Vantage Pro2 rain gauge problems
« Reply #9 on: May 27, 2019, 12:32:49 AM »
Im looking  at this new single tipping spoon from the link someone posted above. Do you just unbolt the other and bolt this one in its place and then just plug it into the transmitter?

Offline Mattk

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Re: Vantage Pro2 rain gauge problems
« Reply #10 on: May 27, 2019, 01:28:18 AM »
The assembly clips in, just need to make sure when "unclipping" the bucket assembly the fittings are not stressed too far. Apart from that just plugs straight in.

Offline lightmaster

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Re: Vantage Pro2 rain gauge problems
« Reply #11 on: May 27, 2019, 01:30:14 AM »
By "unclipping", he means prying with a flathead screwdriver, just make sure you don't break the clips. I took mine off to clean before and its a pain in the rear to remove IMHO.

Offline CW2274

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Re: Vantage Pro2 rain gauge problems
« Reply #12 on: May 27, 2019, 02:01:20 AM »
I took mine off to clean before and its a pain in the rear to remove IMHO.
Yeah, you ain't kiddin' there. Now that I use the RW bucket with the ISS, I've removed the old bucket and tipping mechanism from the ISS and it was all I could do to seemingly not break it, and I didn't really even care if I did, but still preferred not to and eventually got it out without snapping off a clip.

Offline lightmaster

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Re: Vantage Pro2 rain gauge problems
« Reply #13 on: May 27, 2019, 02:15:49 AM »
I took mine off to clean before and its a pain in the rear to remove IMHO.
Yeah, you ain't kiddin' there. Now that I use the RW bucket with the ISS, I've removed the old bucket and tipping mechanism from the ISS and it was all I could do to seemingly not break it, and I didn't really even care if I did, but still preferred not to and eventually got it out without snapping off a clip.

A little silicone spray lube helped me, just a tiny bit to make the plastic slide easier.

Offline txweather.org

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Re: Vantage Pro2 rain gauge problems
« Reply #14 on: May 27, 2019, 08:52:11 AM »
Just curious... Why is this new? The Vantage Vue has been using a single tipping spoon. SO the Vue is more accurate than the superior VP2?

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Offline lightmaster

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Re: Vantage Pro2 rain gauge problems
« Reply #15 on: May 27, 2019, 09:26:45 AM »
Just curious... Why is this new? The Vantage Vue has been using a single tipping spoon. SO the Vue is more accurate than the superior VP2?

The Vue's rain collector is 18 in˛, compared to the VP2's 33 in˛, so the VP2 will inherently be more accurate.

Offline txweather.org

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Re: Vantage Pro2 rain gauge problems
« Reply #16 on: May 27, 2019, 09:34:14 AM »
Just curious... Why is this new? The Vantage Vue has been using a single tipping spoon. SO the Vue is more accurate than the superior VP2?

The Vue's rain collector is 18 in˛, compared to the VP2's 33 in˛, so the VP2 will inherently be more accurate.

Ah! So just adopted the single tipping spoon.

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Offline johnd

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Re: Vantage Pro2 rain gauge problems
« Reply #17 on: May 27, 2019, 10:05:49 AM »
Just curious... Why is this new? The Vantage Vue has been using a single tipping spoon. SO the Vue is more accurate than the superior VP2?

Well, maybe, but only if the tipping mechanism were the sole important factor. The biggest issue with the Vue tends to be its typically high mounting location where wind effects on rain catch are inevitably worse.
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Online ValentineWeather

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Re: Vantage Pro2 rain gauge problems
« Reply #18 on: May 27, 2019, 01:57:53 PM »
At 20 seconds in the video, it talks about the single tipper and how easily it can become overwhelmed by water. If anyone is getting accurate rain measurements using a single spoon tipper it's just pure luck IMO, maybe between wind vibration and overcounting it somehow gets in the ballpark.
 
I'll say it again, the only reliable automatic rain gauge is solidly mounted on a ground base or post. Not dangling in the air on a pole vibrating and swaying in the wind. This is by far my biggest beef with Davis designed stations.

Most any magnetic switch rain gauges can be converted to the Davis stations for reliability. Just cut off the Davis plug and splice in. Yellow/green and red separate... I use the cheap $78 rainwise 111 8" diameter gauge and it's pretty accurate out of the box. I also have my own calibrator to make sure and tweak to 5" per hour rate, this follows my 8" NWS style gauge very closely. \

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Offline CW2274

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Re: Vantage Pro2 rain gauge problems
« Reply #19 on: May 27, 2019, 02:36:50 PM »
Just cut off the Davis plug and splice in.
I didn't even bother to splice mine, too much trouble and then had to worry about making it water tight. So, I went to Ace, picked up 50' of phone cable with the jacks attached, cut off one end and used the same supplied wire nuts to attach where the stock counter was wired to.

Offline WheatonRon

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Re: Vantage Pro2 rain gauge problems
« Reply #20 on: May 27, 2019, 04:14:00 PM »
From another thread I just posted:

Today’s rain event that lasted 1hour and 15 minutes. Shortly after noon.

Gauges about six inches off the ground—no fence or trees nearby on solid support (gauges within 10 inches of each other):

CoCo gauge 1.50 inches
VP2 with new tipper 1.53 inches
VP2 with old tipper 1.55 inches

VP2 with old tipper on a fence post about 6 feet off the ground, some trees nearby—1.20 inches—about 30 feet away from above gauges.

Conclusions? I am confused, but pleasantly surprised with the VP2s by the CoCo gauge.
« Last Edit: May 28, 2019, 11:05:24 PM by WheatonRon »
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Offline KB9HGI

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Re: Vantage Pro2 rain gauge problems
« Reply #21 on: June 04, 2019, 11:42:56 AM »
UpDate: I called Davis they saidit was the Reed switch and they sent me several and some magnets. Was not a hard task so I got the new reed switch it and Yeah it works again.

Offline WheatonRon

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Re: Vantage Pro2 rain gauge problems
« Reply #22 on: June 04, 2019, 12:33:24 PM »
UpDate: I called Davis they saidit was the Reed switch and they sent me several and some magnets. Was not a hard task so I got the new reed switch it and Yeah it works again.

Did they charge you for the new stuff?
Davis VP2 with SHT31 (3 complete VP2 systems—2 with a daytime fan and 1 that has a 24 hour fan); CWOP--CW5020, FW3075 and FW4350; WU--KILWHEAT17, KILWHEAT36 and KILWHEAT39; WeatherCloud.net; CoCoRaHS--IL-DP-132; and Weatherlink 2.0