That probe is a lot warmer than the enclosure. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On May 18, 2015 10:23 PM, "Jeremy" <[email protected]> wrote:
> The coldest that I saw INSIDE our enclosures this year (accordint to > SiteMonitor internal temperature) was 0-C (32-F). Last year was much > colder but back then I was using the APC for temperature and backup, and > that graph data has all been deleted. I can't say for sure if the > temperature in the box was lower, but I doubt it would go too far below 32 > with all the equipment and batteries in the boxes. > > On Mon, May 18, 2015 at 8:14 PM, Adam Moffett <[email protected]> wrote: > >> Wouldn't the simple answer be to offer the device and SD card as >> separate items? Then on your site you say, "If you want to have storage >> with the same industrial temperature range as the rest of my product line >> then buy this card, or supply your own at your own risk." >> >> Everybody selling fiber to the radio with an SFP slot does it that way. >> I always buy their SFP module. >> >> >> On 5/18/2015 10:09 PM, Forrest Christian (List Account) wrote: >> >> What is the lowest temperature that each of you would normally expect >> to see in your enclosures? >> >> The reason I'm asking is that I'm in the process of developing up a few >> new products. >> >> To date, all of the packetflux products are designed with components >> rated -40 to +85C (I.E way cold to way hot). I'd like to retain this >> rating, but I'm running into a minor snag: >> >> For storage, I'm planning on integrating a SD card (probably microSD) in >> a socket. I only need a GB or so, and SD card memory is inexpensive at >> that range. >> >> Unfortunately, all the reasonably priced SD cards are only rated down >> to about -25C or -13F. which are about ~$3 in qty. "Industrial >> temperature range" ones which are good down to -40C/F are available but >> they add at least $30 to the cost for non-name brand, and even more for >> known brands. When you're talking about a $100 end-user price, a $30 1GB >> SD card seems excessive - and probably isn't even possible if I want to >> meet the $100 price with some margin. >> >> So, I'm currently playing the 'what options do I have' game. I hate >> to ship a product only rated down to -25C/-13F, but I know for at least a >> large chunk of my customer base they never see below this temperature, >> especially when you add a watt of power dissipation in the case with the >> device. Which leads me back to my original question: What's the lowest >> temperature most people would expect to see inside their enclosures. >> >> -- >> *Forrest Christian* *CEO**, PacketFlux Technologies, Inc.* >> Tel: 406-449-3345 | Address: 3577 Countryside Road, Helena, MT 59602 >> [email protected] | http://www.packetflux.com >> <http://www.linkedin.com/in/fwchristian> >> <http://facebook.com/packetflux> <http://twitter.com/@packetflux> >> >> >> >
