Computer depth accuracy at shallow depths?

[jgoodstein]

I have a oceanic computer that is fantastic for my needs. When i go to depths of 15'+ it matches with my analog gauges and other computers... however at depths under 10' it seems to be all over the place.

Example: i was in my pool the other day and put it on the bottom of my 6 foot pool, it measured 8' at the shallow end of my pool (4.5') it measured 4'.. Just curious if i should have it serviced or if shallow depth calculations are not as accurate. Again anything over 10' it seems to be spot on.

 

[NCadiver]

What did your other computers read when they were next to the oceanic and remember salt water is heaver then fresh water.
And did you measure the pool depth.

 

[jgoodstein]

Never compared in shallow salt waters,I've compared at 15' safety stop and it matches other computers, checked deeper as well and it matches. Will check out this weekend in salt at shallow,, just through me for a bit of a loop in my pool.

 

[idocsteve]

I love my VT Pro AI wrist mounted computer but under 4 or 5 feet I just cannot trust the thing. Sometimes it doesn't even register that I'm doing a dive when at those depths. Sometimes I wonder what might happen if I run out of gas at 5 feet because it doesn't register on my computer!

I might have to make an emergency ascent and from a depth of 5 feet I could be in real trouble.

 

[fnfalman]

I love my VT Pro AI wrist mounted computer but under 5 feet I just cannot trust the thing. Sometimes it doesn't even register that I'm diving at those depths.

It's terrible. I can't tell if I'm going to run out of NDL or what.

 

[idocsteve]

It's terrible. I can't tell if I'm going to run out of NDL or what.

I know, right?!

I'll sometimes have a dream that I'm cruising along at about 4 feet and the nitrogen is creeping into my bloodstream and I don't even know it and then suddenly my dive computer is able to get a reading and it's in the red and I've violated my limits and I am forced to do an hour of deco at about 18". There I am trying to maintain my depth and my girlfriend wakes me up and says "You're doing that thing where you stand up in bed and raise one arm over your head and keep pressing your thumb and forefinger together as if you're trying to vent a BCD".

 

[vjanelle]

Some gauges are considered acceptable to have a accuracy rating of +/- 3'.

In other words, I wouldn't worry between 10' and 0'.. It could say 6' when you're at 3' and be perfectly acceptable.

 

[idocsteve]

Some gauges are considered acceptable to have a accuracy rating of +/- 3'.

In other words, I wouldn't worry between 10' and 0'.. It could say 6' when you're at 3' and be perfectly acceptable.

Until that boat with a 3.5 foot draft goes over your head (or through it)

 

[FritzCat66]

...I've violated my limits and I am forced to do an hour of deco at about 18".

I accidentally racked up that kind of deco time in my own hot tub one afternoon. I managed to scrape by without a chamber ride by doing some controversial in-water deco in the bathtub, but consider this another reason to not only keep that snorkel, but to get a really loooong one!

 

[idocsteve]

I accidentally racked up that kind of deco time in my own hot tub one afternoon. I managed to scrape by without a chamber ride by doing some controversial in-water deco in the bathtub, but consider this another reason to not only keep that snorkel, but to get a really loooong one!

I'm going to seriously advise you to consider some remedial hot tub training.