[PSUBS-MAILIST] Heating elements

Sean T. Stevenson via Personal_Submersibles personal_submersibles at psubs.org
Thu Aug 6 08:48:39 EDT 2015


Are all of your electronics confined to sealed enclosures? Or are you struggling to keep the cabin humidity down?

You may have better luck condensing the moisture out with a cooling coil and draining it, rather than relying on heat to drive the %RH down, except in a truly sealed enclosure.  For enclosures that you don't need to open frequently, dessicants may suffice.

If you are only concerned about one or two specific components, you might look at aftermarket conformal coatings.  These can raise moisture tolerance to 100% RH non-condensing for many components.

Sean


On August 5, 2015 9:11:10 AM CDT, Lasse Schmidt via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>Hey guys,
>
>I´m looking for heating elements to mount in our electronic boxes and
>remote. Any pointers what to search for and where? I´m not even sure
>how they look like. 
>
>We have so far almost 250 dives with Malen this year, after the worst
>summer in decades with tons of rain in Sweden we´ll try to fight the
>moisture with some heating elements and a dehumidifier in the sub. The
>electronics does´t like to moisture for sure. All suggestions are super
>welcome.
>
>Cheers, Lasse
>
>
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