On Sunday, October 4, 2020 at 10:32:46 AM UTC-7, Chris Schram wrote: > > I have an 11-year-old Davis Vantage Vue with a USB data-logger plugged > into a Raspberry Pi3B. Everything works well except... > > The sensor suite, which has been out in years of all kinds of weather, > besides being pretty filthy, is crapping out in its temperature/humidity > readings when it starts getting hot during the day. It recovers when the > temperature drops sufficiently. > > I have a 11+ year old VP2 and can validate that it's pretty trivial to swap in a new sensor. I had to take my unit completely apart when I added a daytime FARS to it earlier this year. Totally a piece of cake to do. Just soak the plastic pieces in hot water and all the junk scrubs right off of it. The plastic will be a little discolored after all those years, but it'll be in fine shape. The temp/humidity sensor is super easy to access and replace.
Only blood pressure item was lining up the various plates and screwing the shield back to the base of the rain collector platform. I have to admit making up some new words trying to align things while reassembling the pieces :-) For a vendor I'd highly recommend Scientific Sales or Scaled Instruments. I've bought parts from each, and both were 'excellent' to do business with. https://www.scientificsales.com/7346-070-Replacement-Temp-Hum-board-for-Davis-VP2-p/7346.070.htm - under 50 bucks for the sensor https://www.scaledinstruments.com/shop/davis-instruments/parts/vantage-pro2-parts/temperature-and-humidity-sensor-parts/davis-7346-070-pro2-digital-temperature-humidity-sensor-sensiron-sht31/ for the other vendor Note the disclaimer on the second link about the newer sensors from Davis being a little different from the old ones, so you need to put in an offset on the console after you replace it. The Davis docs are typically really good, so that should be straightforward. I have never updated any firmware since I got my station in Jan-2009 and nothing bad has happened. If it ain't broke don't fix it :-) -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/8f3d87fa-5dd5-498f-b2f7-23a6ef1775c9o%40googlegroups.com.
