jhelmuth
Contributor
Wireless AI bothers me a bit, but I'm fine with my AI Uwatec SmartCOM. I've been lead to believe that the RF wireless AI can be problematic in steel shipwrecks, and when in close proximity to same type units.
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ZenSquirrel:I'm wondering if there is any hard data to support the opinion that digital SPG's fail more often than analog SPG's. It is a fact of scuba diving that the majority demographic is middle age males who supposedly don't trust technology. Is this just more distrust of "computers"?
DeepTrip:Thats probably one of the contributing factor against electronic SPG. I will try to comment from logical point of view.
1. Digital SPG requires battery, analog one doesn't
2. Digital SPG employs additional compartment to keep the electronic part and battery, another point of failure
3. My analog SPG was leaking in a dive. It didn't leak air, but water got into the display. I know I was gambling by using it for 2nd dive, but I'm sure the digital one won't survive the leak.
lairdb:Broadly though, the most common in-water mechanical SPG failure would seem to be stuck-at-3000; the most common digital SPG failures would seem to be total failure. There's a fairly make-able argument that the latter is much more immediately detectable and less likely to lead into an incident pit.
3dent:Well put, for comps in general.
WRT wireless, if a wireless comp lost comms it may continue to display the last known PSI/Bar, which would be an equivalent situation to a 'stuck-at-some-pressure' SPG. Either should be readily evident to an observant diver.[...]
However, I would expect any well-designed comp to realize that it hasn't updated, and give a warning to the diver.