In answer to a couple of the questions: 1. 85C will be reported in whatever temperature scale units are requested. 2. OWFS rechecks all 85C readings 3 times automatically, but finally will report 85C if the sensor reads 85C consistently. 3. The wine cellar uses a DS18S20 in a plastic drinking straw with some GE RTV silicone sealant (from the hardware store) sealing the end. It's been immersed and functioning for 6 years now.
Maybe some static charge in the Vcc lead confused the sensor in the lightning storm? Paul Alfille On Wed, Mar 2, 2011 at 5:36 PM, Scott <[email protected]> wrote: > Ooops! > > I pulled the security off that gallery which should fix it. Try it again. > > -Scott > > > On 3/2/2011 4:29 PM, Eloy Paris wrote: >> Hi Scott, >> >> On 03/02/2011 05:18 PM, Scott wrote: >> >>> That's slick, but copper in aquariums is a big no-no. High-end >>> freshwater or saltwater reef aquarium inhabitants like corals and >>> invertebrates can not tolerate copper. >>> >>> I encased my sensors in epoxy to avoid water contact. Just solder up the >>> sensor, mix up some 2-part epoxy, and smear it over the chip and any >>> wire that will be in the water. I put on 2 "coats" just to sure it's >>> water proof. I've found it works well for sensing temperature - they >>> aren't pretty, but they track temps just fine. >>> >>> http://bytality.com/gallery/1-wire_setup/ >> "Sorry, but you are not authorized to view this page". Even tried using >> [email protected] but no worky :-( >> >>> As far as 85°C, my temp collection script takes a series of readings and >>> then tosses any that are outside a predefined distance from the average. >> I was thinking about implementing distance from previous reading but >> distance from average works too. >> >> I actually don't accept readings outside a range, and 85 is outside that >> range, so my RRDs did not get messed up when I was getting 85 C >> measurements for a while that day. And since 85 is outside the range I >> don't think I'll have to come up with a fancy way of recognizing a true >> 85 C reading ;-) >> >> Cheers, >> >> Eloy Paris.- >> >>> Granted, my aquarium should never hit anywhere near 85°C, but it got rid >>> of my errant readings. >>> >>> -Scott >>> >>> >>> On 3/2/2011 4:04 PM, nick wrote: >>>> Here are my water proof sensors using copper pipe and HMA, they have >>>> worked well so far. >>>> >>>> http://kiwi-hacker.blogspot.com/2011/01/new-soil-temperature-sensors.html >>>> >>>> >>>> >>>> On Wed, Mar 2, 2011 at 9:57 PM, Mick Sulley<[email protected] >>>> <mailto:[email protected]>> wrote: >>>> >>>> On Wed, 2011-03-02 at 09:18 -0600, Guil Barros wrote: >>>> > > Hhmmm. Interesting. Tips like these is exactly what I am >>>> after, so thanks a >>>> > > bunch for that. >>>> > > >>>> > > I like the idea of covering the sensor (or parts of the sensor >>>> and the PCB) >>>> > > with silicone. Do you remember what specific product you used >>>> (was it a >>>> > > spray, or just one of those tubes you buy at HomeDepot or >>>> Lowe's that you >>>> > > apply with a gun)? >>>> > >>>> > Yes, I just got a tube of silicone I had laying around the house >>>> and >>>> > encased the whole thing in it. If I remember the tech sheet >>>> correctly, >>>> > the newer DS18b20's are entirely waterproof (old ones had issues) >>>> so >>>> > you really only need to encase the leads. I did the whole thing >>>> as the >>>> > sensor is pulling the temp read off of the ground wire anyways so >>>> > might as well be safe. >>>> > >>>> I have several sensors out on the roof monitoring solar panels. I >>>> use 3 >>>> core 0.75mm high temperature cable, solder the DS18S20 to the end with >>>> small heat shrink sleeves over the pins, then use another heat shrink >>>> over the top and onto the outer of the cable, but filled it with epoxy >>>> resin, squeeze the air out, refill, etc, then when I thought all >>>> the air >>>> bubbles were out used a paint strip gun to shrink the sleeve. It is >>>> slow and very messy but I think I have got weather proof sensors as a >>>> result. >>>> >>>> >>>> > > I also like the idea of using wax. I obviously had not thought >>>> about it. I >>>> > > suppose that in that case you melt the wax (like from a >>>> candle) in a pot and >>>> > > then dip the PCB into it. Is that they way people would do it? >>>> > >>>> > I've seen it done for potting electronics on ROV's. In that case >>>> they >>>> > had the electronics in a small plastic enclosure and just filled >>>> the >>>> > enclosure with wax when done. >>>> > >>>> > > I also found about "conformal coating" while doing some >>>> searches last night. >>>> > > Guess that is the official name of what I am after. There are >>>> products to do >>>> > > conformal coating, although nothing you can find at your local >>>> hardware >>>> > > store, which is why I'd prefer to go with one of the two >>>> methods you >>>> > > mentioned. >>>> > >>>> > I think thats what Hobby-Boards uses, might be worth sending >>>> them an email. >>>> > >>>> > -------------------- >>>> >>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> Free Software Download: Index, Search& Analyze Logs and other IT >>>> data in >>>> Real-Time with Splunk. Collect, index and harness all the fast >>>> moving IT data >>>> generated by your applications, servers and devices whether >>>> physical, virtual >>>> or in the cloud. Deliver compliance at lower cost and gain new >>>> business >>>> insights. http://p.sf.net/sfu/splunk-dev2dev >>>> _______________________________________________ >>>> Owfs-developers mailing list >>>> [email protected] >>>> <mailto:[email protected]> >>>> https://lists.sourceforge.net/lists/listinfo/owfs-developers >>>> >>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> Free Software Download: Index, Search& Analyze Logs and other IT data in >>>> Real-Time with Splunk. Collect, index and harness all the fast moving IT >>>> data >>>> generated by your applications, servers and devices whether physical, >>>> virtual >>>> or in the cloud. Deliver compliance at lower cost and gain new business >>>> insights.http://p.sf.net/sfu/splunk-dev2dev >>>> >>>> >>>> _______________________________________________ >>>> Owfs-developers mailing list >>>> [email protected] >>>> https://lists.sourceforge.net/lists/listinfo/owfs-developers >>> >>> >>> ------------------------------------------------------------------------------ >>> Free Software Download: Index, Search& Analyze Logs and other IT data in >>> Real-Time with Splunk. Collect, index and harness all the fast moving IT >>> data >>> generated by your applications, servers and devices whether physical, >>> virtual >>> or in the cloud. Deliver compliance at lower cost and gain new business >>> insights. http://p.sf.net/sfu/splunk-dev2dev >>> >>> >>> >>> _______________________________________________ >>> Owfs-developers mailing list >>> [email protected] >>> https://lists.sourceforge.net/lists/listinfo/owfs-developers >> >> ------------------------------------------------------------------------------ >> Free Software Download: Index, Search& Analyze Logs and other IT data in >> Real-Time with Splunk. Collect, index and harness all the fast moving IT data >> generated by your applications, servers and devices whether physical, virtual >> or in the cloud. Deliver compliance at lower cost and gain new business >> insights. http://p.sf.net/sfu/splunk-dev2dev >> _______________________________________________ >> Owfs-developers mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/owfs-developers > > > > ------------------------------------------------------------------------------ > Free Software Download: Index, Search & Analyze Logs and other IT data in > Real-Time with Splunk. Collect, index and harness all the fast moving IT data > generated by your applications, servers and devices whether physical, virtual > or in the cloud. Deliver compliance at lower cost and gain new business > insights. http://p.sf.net/sfu/splunk-dev2dev > _______________________________________________ > Owfs-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/owfs-developers > ------------------------------------------------------------------------------ Free Software Download: Index, Search & Analyze Logs and other IT data in Real-Time with Splunk. Collect, index and harness all the fast moving IT data generated by your applications, servers and devices whether physical, virtual or in the cloud. Deliver compliance at lower cost and gain new business insights. http://p.sf.net/sfu/splunk-dev2dev _______________________________________________ Owfs-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/owfs-developers
