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The key word I used is "partially" to refer to one of the ways you can flood a separate battery compartment dive computer. This can go on for days unnoticed because tap water is used to pressure test (only harm caused at this point is the discharge of the battery at a faster rate). However, when...

BillP, The Bergeon pressure tester is a two-stage (or two-phase) tester. First, you pressurize the computer in the upper part of the cylinder which contains air and after a couple of minutes, without depressurizing the vessel, you dunk the computer in the water filling the lower part of the...

Yeah. Dielectric fluids aside and sealed battery compartments notwithstanding. Dmaziuk, If you test a sealed battery compartment dive computer in a standard pressure pot you can still partially flood the battery compartment and don't realize it, just to learn you flooded it a few days after...

The old Uwatec models (as the old Beauchats and even one of the first Mares) where (or are) filled with mineral oil. Due to their size, the only way to withstand the pressure exerted over the display side of the case and not collapsing (remember F (force) = P (pressure) x Area) is to allow the...

JamesBon92007: Unfortunately sometimes the depth sensor fails to render the dive computer useless. True, this happens across the whole spectrum of brands and models but there is a particular brand in which this is reported more frequently than in the others. To your point, there is nothing you...

Giffenk: Concur with the depth you use for pressure testing your dive computer. Unless the client has a special requirement we waterproof every dive computer, transmitter and dive watch we service to 165 feet (50 meters). For that, we use Bergeon 5555/10 pressure tester designed to prevent...

I am not a chemical engineer but to me, the positive contacts in your computers were victims of corrosion and totally disintegrated. I'm guessing here but some tap water might have gotten into the battery compartments when the computers were pressure tested. But the really destructive corrosion...

You can get them in Battery Junction for $ 3.95 a piece: Duracell 7K67-BPK J Type 6V Alkaline Home Medical Battery - 1 Piece Retail Card

BillP, sorry to hear that. You can certainly trace what happened to re-using the "old" Orings. Every dive computer manufacturer that I know states (particularly for the "user replaceable battery" models): "use a new Oring when replacing the battery". People in this forum even brag about having...

JB69, Sorry to bring you bad news. The poor design of the attachment of Mares Smart to its strap, in my opinion, rules out any adaptation to use a NATO strap. I have just reconstructed the case of one Mares Smart (was literally ripped apart) to allow screwing back one side of its strap and...

Cranegury: Sent.

Rred has just provided a more detailed (and updated) description about the two or three existing methods to pair the output of a sensor and its corresponding electronic circuit. But the bottom line is the same: if you replace a sensor in a dive computer (or try to use the guts of one with the...

I know this is an old thread but, since I used to be an electronic engineer in a previous life, I feel compelled to give my two cents: 1. I suspect Milk got a hold of a Cobra pressure sensor, went ahead and replaced the one in his computer to find out, afterwards, that the new pressure sensor...

Abigail: Sent.

truckinboz0: Sent

Yes.

Gamera: Your dive log is gone after changing the battery.

Augusto: We specialize in changing batteries on all dive computers brands and models. Suunto is one brand we service more often and I concur with Shurite7 that the Stinger is not precisely battery user-friendly. We offer fast turnaround and very reasonable prices (that includes pressure testing...

I personally own an OC1. From the symptoms you describe and after having replaced twice the battery (which is equivalent to have reset your computer the same number of times), I am afraid the electronic module of your OC1 is fried. Probably makes sense to look into an Aqualung i450 and get...

Lshulan: If you provide me with your email I'll send you a copy of the Omni Pro dive computer User Manual.