We engineered electronics packages for these types of environment, from desert to arctic. Keys for success: 1- Inside of housing must be designed to route any condensation away from the electronics. Design ENCOURAGES condensation on normally cooler enclosure surfaces, not the electronics. 2- A compartment heater (actually a high wattage, low value resistor) is ALWAYS energized to keep interior air temperature and temperature of electronic assemblies slightly above exterior. 3- Compartment must be absolutely air tight so as not to allow breathing as atmospheric pressure changes. Condensation that occurs collects on housing and drains to bottom of enclosure. If cooling is required, it must be done with heat exchanger to avoid ingress of outside air. BTW, mission critical equipment was housed in nitrogen purged compartments, including conduit which is major source of humid air flow! We required that equipment stored during construction must have compartment heaters energized. So, it can be done. Ken ke4rg
-----Original Message----- From: [email protected] <[email protected]> On Behalf Of Dave Sublette Sent: Thursday, July 5, 2018 8:38 AM To: Elecraft Discussion List <[email protected]> Subject: [Elecraft] Equipment Storage and operation I should start with an apology to the group. Although I stand by what I said in a previous post, I feel that the way I expressed myself was in violation of decorum standards for this group. I am sorry for that. <snip> ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
