And since the card is going to be trapped in a similarly sized enclosure with slightly more power consumption, it's probably a good indication.
On Mon, May 18, 2015 at 8:31 PM, Jeremy <[email protected]> wrote: > 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> >>>> >>>> >>>> >>> > -- *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>
