Vision Fail's again

Moray Brown

Folks, can anyone say if they've had this same problem. Dived last Thursday fine, two dives complete without problem. Friday put unit together as normal, went through test etc..... then display went dead and unit just alarmed. Couldn't turn off by handset, had to take apart and take out batteries before I could shut the thing up. No worries I thought, bad batteries. Put some new ones in, tested everything was ok before putting everything back together, all was fine. Put the head back in the scrubber, everything else back in place, then it happened again. Screen went blank, and had to take apart and get batteries out to stop it alarming....

Any ideas?

GraemeG

Hi Deep Star,

I had exactly the same issues a couple of weeks back. My Vision electronics were fine the night before I was planning to dive. The follow day just before the dive I switched on to Calibrate. No display and the buzzer kept sounding. The only way to switch off was to take out the batteries.

Out of interest, I did notice that I could get the unit to behave if I removed one of the batteries (B2) and then switched the Vision electronics on. Once running I could replace B2 and the unit ran fine. Obviously not an ideal solution!

Another thing to try is to take both batteries for 24hrs. I did this and it appeared to sort itself and the unit ran perfectly.

In the end I sent my unit back to AP and they replaced the electronics in the head. They didn't give any specific reason for the fault but feel happier knowing AP have looked at my unit.

Hope this helps.

I'm interested to know if this is a batch fault. I got my unit in March 06.

Cheers

Graeme

chunter

This sounds like the same problem I had. I'm starting to wish I had stuck with my classic electronics. It also annoys me that AP and Silent Diving aren't giving a good explaination for this problem. I got a VERY short email back from them telling me to send in my electronics.

Aloha,
Charlie

dave burke

hi
it may not be the same problem, but after just 10 hrs on unit both b1 + b2 went flat. these were new bats that came with unit. after putting new one into unit i got intouch with APD, nicky sent me a bat upgrade, which i downloaded and installed to the unit, i have now used these for7.53 hours and both b1 + b2 are still showing 3 bars
as i said it may not be the same,
but i do hope this is of some help
if not, sorry for wasting the time it has taken to read this
safe diving
dave

Quote: (Originally Posted by chunter)

This sounds like the same problem I had. I'm starting to wish I had stuck with my classic electronics. It also annoys me that AP and Silent Diving aren't giving a good explaination for this problem. I got a VERY short email back from them telling me to send in my electronics.

Aloha,
Charlie

fireman

I can't believe you folks trust your lives to these things...

rdmmdr

Fireman

Have Some Green For This One. I Was Waiting For Someone Else To Say What Has To Be Said About The Vision Electronics, They Are A Death Trap Waiting To Happen, And Everyone That Is Using The Vision Electronics Is A Beta Tester. All Visions Should Be Recalled. Scubapro Recall For The Mk20 Had A Problem With 7 Units Out Of 42,000 Made. They Recalled Everyone. Apd Has Never Recalled A Unit, Even When They Knew They Had Problems. And Don't Tell Me They Don't Know Who Has The Units Now.


I Don't Know How The Brit's Deal With This Kind Of Problem But In The States We Have Several Agencies That Handle This. I Think The Problem Is That No One Has Reported It To The Right Individuals. If Apd Cared For It's Customers They Would Have Recalled The Vision And Stood Behind The Handset Problem In The Classic.


Rick Miller

01RMB

Why is it that discussions that start out as identifying a problem degrade into a slanging match by people who have never dived the unit?

I am interested in finding out about the various ways rebreathers and in particular the Vision electronics could fail so that I may be able to recognise when something has gone wrong and to prepare for the eventuality if it does occur to me. This is one of the big reasons why I read Rebreatherworld BUT I do not find anything useful about the direction some of these threads end up going when the topic turns to bashing a manufacturer with little factual basis.

I only make comment on issues where I have had direct experience or am able to offer help in some way. I find the scare mongering about units that people do not know anything about over the top and boorish.

Sure there have been problems with the Inspiration and Evolution but rebreathers are complicated control systems operating in a hostile environment. There is a lot more built into this generation of rebreather than previous generations. As the systems get more complicated there is an increased level of failure potential which you need to consider. Units like the KISS have a lower failure risk since there are fewer systems that can fail but they still fail - no unit is immune. The critical issue is to always have a plan for the eventuality of a failure which is why we have contingency plans and practice bailout skills.

None of the rebreathers in production are fault free and all of them have areas where they could be improved. I welcome the identification of issues and the subsequent rectification since it helps to improve the unit. If there is a major failing in a unit I would think that the manufacturers will be the first to respond to prevent major litigation issues.

Manufacturers are listening and working to improve performance and reliability. I own an Evolution and have been using it for over 18 months now. In that time there has been some software updates which have made minor improvements but NONE of which I would considered life threatening. I am happy with the level of response from APD and am glad that the rebreather I dive is supported by an organisation with their level of development and testing.

I just wish people would choose to discuss issues without denigrating suppliers or other people.

__________________
Cheers
Rod

caveseeker7

Fireman, they probably don't.
Rick, while I pretty much agree with you, this ain't the thread for it.
Both of you, please either stay on topic or out of it.
Rod, have some green.

__________________
Cheers
Stefan



"Political Correctness is a doctrine, fostered by a delusional, illogical minority,
and rabidly promoted by an unscrupulous mainstream media,
which holds forth the proposition that it is entirely possible to pick up a turd by the clean end.!"

rdmmdr

Rod

You Have Been Lucky With Your Unit, And I Wish You Further Luck. But Your Unit Has Had Some Serious Issues That I Feel Where Dealt With Badly By The Factory.

Five Units Go To Sa And All Five Fail, Fact. Battery Bounce Issues, Fact. Screen Burn Issue, Fact. Handset Lockup, Fact. Battery Management Issue, Fact. Handset Case Cracking Issue,fact. Inapropriate Wire In The Harness, Fact. And Lets Go The The One That Is Near And Dear To My Heart, The Lets Screw You Over On The R-22d Vrs R-22bud Issue. Oh And Lets Not Forget The Lithium Battery Bombs In The Head.


Apd Has Never Recalled A Single Unit When They Know That The Have A Multitude Of Issues With Thier Units. They Do Not Stand Behind Thier Units, Else They Would Fix The Handset Cracking Issue For Free.

And You Say Because I Don't Dive One Of These Units, I Have No Right To Comment. I Would Not Dive One If You Paid Me To.


Mechanically, With The Exception Of The Adv, The Unit Seems To Be A Sound Unit. And The Adv Issue Is More Of A Pain Then A Danger.
But With A Hundred And Fifty Bucks And Home Depot I Can Make A Mechanically Good Unit.

Does It Look Good? Yes. Does It Work Good? Most Of The Time. but With Life Support Equipment Most Of The Time Is Not Good Enough.

rick

Moray Brown

Thanks mate, good response.