Yeah, that is why I mentioned that it was the internal site monitor temperature. Forrest knows almost exactly how far off it is from the ambient temperature.
On Mon, May 18, 2015 at 8:28 PM, Josh Luthman <[email protected]> wrote: > 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> >>> >>> >>> >>
