Our full technical support staff does not monitor this forum. If you need assistance from a member of our staff, please submit your question from the Ask a Question page.


Log in or register to post/reply in the forum.

Inaccurate R. M. Young 50202 / 50203 Syphon Precipitation Gauge readings


mesocyclone Oct 20, 2020 06:22 PM

Hi,

Does anyone have any experience using the RM Young 50202 syphon precipitation gauge?  We are field testing a few units purchased from Campbell Scientific for several months, but our results have thus far have been abysmal.

The gauge claims an accuracy of +/- 1 mm on the manufacturer's datasheet [does not state if it is with respect to the entire collection capacity of 50mm or .... ? ].  However, we don't get anywhere near that compared to our co-located standard rain gauge readings.

Our tests show this model under-reports precipitation events on the order of -7% to -20% per precipitation event.  This make the gauge unusable.

Does anyone have any thoughts, comments, suggestions, experience with this gauge?

Thanks.


JDavis Oct 21, 2020 03:36 PM

Are you using a wind screen?

That gauge has a bigger cross section, so wind errors could be more than on a smaller rain gage. 


mesocyclone Oct 21, 2020 09:13 PM

No, we are not using any wind screen / alter shield for the gauge.

The manufacturer has not indicated that it is required in the documentation and photos of the gauge installation do not show any sheild.

Also, please note this gauge has a catchment diameter of only 113 mm (4.4 in) / catchment area of 100 cm2 (15.5 in2) which is narrower compared to many other gauges

This gauge has inferior performance to other, cheaper (e.g. low end tipping bucket) gauges we have tested concurrently - and those do not have a sheild installed either.


ratketyree Nov 15, 2023 09:07 AM

We are not protecting the gauge from the wind or utilizing an alter shield.

The instructions and photographs of the gauge's installation do not mention a shield being used, nor do they show one being used. wordle today


Evelynn Mar 17, 2024 02:51 PM

Let me share a little discovery that brightened up my academic journey. I stumbled upon a review https://essay-reviews.com/ultius-review of Ultius on this fantastic website, and let me tell you, it was like finding a hidden gem. The review wasn't just a rundown of features; it was a glimpse into the real experiences of users. It felt like peeking behind the curtain and seeing the platform for what it truly is.


acupe Apr 28, 2024 09:22 PM

Hello folks, I'd like to tell you about https://slotscity.ua/ , which stands out as a premier online casino with its comprehensive range of games and excellent customer service. The platform is secure, offering peace of mind alongside great entertainment. Their commitment to providing a diverse gaming experience with slots, table games and more ensures that there's always something new to discover and enjoy.


AvaCarter Oct 26, 2024 03:27 PM

This post is under review.


Thary2002 Oct 28, 2024 06:56 PM

This post is under review.

Log in or register to post/reply in the forum.