I've got both po2 meters piggy backed on my
copis . never had a problem, well, so far anyway. Was very concerned about this in the beginning and almost went for a fourth cell. I'm monitoring my HUD as the primary, and use the handset to cross check po2 and track NDL/DL. While it's theoretically conceivable that current pollution could cross over at the molex I have yet to hear a good explanation of how that would happen. Most importantly, I have not heard of that actually happening. Questioning weather pollution from ingress or other shorts or malfunctions could subtly effect readings in a way that is not obvious is a good thing to think about. Certainly molex connectors are prone to leaking as a matter of course and food grade mineral oil seems imperative as a safeguard. Until I see otherwise, i'm confident that the chances of a charge effecting all three cell readings on both handsets in consistent ways such that I do not notice and bail out is so remote that it does not outway the value of such a configuration. Well, to say that i'm confident may be a bit misleading, i'm monitor my set up as if i'm expecting to catch it malfunctioning. Confidence and electronics don't tend to go too well together.
IMHO
g
Quote: (Originally Posted by
Dutchy)
In all honesty I think it depends on your dive profile. I can loose displays and simply abort my dive. What worries me more in this config is "a little bit" of short-circuiting. A completely short circuited circuit should be obvious. But what if its only a partial short circuit (e.g. brakish water ingres) ? In the best case displayed values are different or change quickly (once more obvious) but what if they all more or less deviate by the same offset?