Vision solenoid timing

Forest Diver · 6th January 2007, 11:35

Hi all,
I have an Inspiration vision and have noticed that the solenoid fires for short bursts quite frequently - during the initial pre-breathe can be every other breath.

I have read and re read the manual and it states that there should be a 6 second delay between it firing.

I have rung Nikky at AP and was told that the 6 second delay was dropped on the last software update so the solenoid fires whenever the setpoint drops sufficently to prompt addition of O2.

Just looking for a second opinion have any of you noticed this??

NB love the unit...

CharlieT · 6th January 2007, 12:26

First welcome to an excellent site

If you've spoken to Nicky at AP, why isn't her correct explanation enough for you?

The software change she mentioned was one of a number of revisions.

Charlie

Skeletor · 6th January 2007, 12:28

To set your mind at rest, mine does exactly the same, and I'm still alive

***jradomski*** · 6th January 2007, 13:13

This brings up an interesting question.. Since APD changed the solenoid firing did they redo the CE testing for that function?? Since setpoint maintenance is a required test for Rebreather CE certification..

Allan_o · 6th January 2007, 13:34

hey Joe.
Interesting question.
Drop ap a mail and ask them.

regards Allan

CharlieT · 6th January 2007, 13:36

Quote: (Originally Posted by jradomski)

This brings up an interesting question.. Since APD changed the solenoid firing did they redo the CE testing for that function?? Since setpoint maintenance is a required test for Rebreather CE certification..

This issue is directly connected to the original question?

If you're worried, I'm sure Nicky or Martin will be delighted to answer your question

Since there seems to be so much doubt expressed on this site about the AV of CE, I don't care either way.

Charlie

***jradomski*** · 6th January 2007, 14:06

Quote: (Originally Posted by CharlieT)

This issue is directly connected to the original question?

If you're worried, I'm sure Nicky or Martin will be delighted to answer your question

Since there seems to be so much doubt expressed on this site about the AV of CE, I don't care either way.

Charlie

I'm not worried in the least..
APD has always seemd to be resposive to its customer's needs..

This thread just got me thinking what changes a manufacturer could do without having to retest..

dave t · 6th January 2007, 14:16

I think the CE requirements regarding setpoint is its acuracy not how its achieved.

There are a lot of people knocking the CE mark and some say its biased towards one particular rebreather, well that may or may not be true but the point is when the CE test was devised there was only one rebreather on the market. whether you belive the validity or not at least it shows scientific data to back up the performance claims by the manufacurer.

Personally I would feel happier diving a rebreather that has some data testing than none at all. A bunch of guys diving a Rebreather and saying "well we all did x hours on that scrubber and no one had any problems so it must be ok for x hours" is not proper testing.

On the downside the CE mark does hinder development by gifted engineers who's only weakness is lack of dosh to fund their project with

just my opinion

Dave

Forest Diver · 6th January 2007, 18:58

Quote: (Originally Posted by CharlieT)

First welcome to an excellent site

If you've spoken to Nicky at AP, why isn't her correct explanation enough for you?

The software change she mentioned was one of a number of revisions.

Charlie

Thanks Charlie and to all the other who have answered - my mind is now set at rest.

I was 99% happy with the answer given by Nicky. I have have had a factory tour and was extremely impressed by the professionalism of Martin and his staff - this was two years ago and was a considerable factor in my choice of unit.

Nevertheless I always try to validate information especailly if the person giving information is not truly independant. I hope asking this question is not seen as offensive, it certainly isn't meant to be any sort of disrespect but this is my life support equipment and I want to certain what I am being told is correct.

***jradomski*** · 7th January 2007, 01:40

Quote: (Originally Posted by dave t)

I think the CE requirements regarding setpoint is its acuracy not how its achieved.
Dave

Agreed,
The testing has 2 parameters, 1 was error from chosen setpoint and the other was the maxim drop allowed during an ascent, allowing for 1 minute to return after a constant depth is achieved..

But if you change the alg at all, It is Different and by the spirit of the regs probably requires retesting..

6th January 2007, 11:35	#1 (permalink)
Forest Diver New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Join Date: Aug 2006 Location: Gloucestershire Posts: 20	Vision solenoid timing Hi all, I have an Inspiration vision and have noticed that the solenoid fires for short bursts quite frequently - during the initial pre-breathe can be every other breath. I have read and re read the manual and it states that there should be a 6 second delay between it firing. I have rung Nikky at AP and was told that the 6 second delay was dropped on the last software update so the solenoid fires whenever the setpoint drops sufficently to prompt addition of O2. Just looking for a second opinion have any of you noticed this?? NB love the unit...
(Offline)

6th January 2007, 12:26	#2 (permalink)
CharlieT Custom Title Allowed! Current Rebreather/s: Inspiration Vision Other Rebreather/s: Join Date: Nov 2005 Location: London Posts: 449	Re: Vision solenoid timing First welcome to an excellent site If you've spoken to Nicky at AP, why isn't her correct explanation enough for you? The software change she mentioned was one of a number of revisions. Charlie
(Offline)

6th January 2007, 12:28	#3 (permalink)
Skeletor The 4th King Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Feb 2005 Location: Purgatory Posts: 47	Re: Vision solenoid timing To set your mind at rest, mine does exactly the same, and I'm still alive __________________ Un-shallow Seating Receptacle
(Offline)

6th January 2007, 13:13	#4 (permalink)
*jradomski* Moderator Current Rebreather/s: Inspiration Classic Sport Kiss Optima rEvo Other CCR Other Rebreather/s: Inspiration Vision Evolution Megalodon Classic Kiss rEvo Other CCR Join Date: Mar 2005 Location: "Da" Bronx Posts: 3,115	Re: Vision solenoid timing This brings up an interesting question.. Since APD changed the solenoid firing did they redo the CE testing for that function?? Since setpoint maintenance is a required test for Rebreather CE certification.. __________________ Joe Radomski CCR Trimix Instructor Trainer ANDI Instructor Trainer Director #10 All posts are personal opinions and DO NOT reflect any affiliated agency unless specifically stated.
(Offline)

6th January 2007, 13:34	#5 (permalink)
Allan_o New Member Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Dec 2005 Location: Copenhagen Denmark Posts: 81	Re: Vision solenoid timing hey Joe. Interesting question. Drop ap a mail and ask them. regards Allan
(Offline)

6th January 2007, 13:36	#6 (permalink)
CharlieT Custom Title Allowed! Current Rebreather/s: Inspiration Vision Other Rebreather/s: Join Date: Nov 2005 Location: London Posts: 449	Re: Vision solenoid timing Quote: (Originally Posted by jradomski) This brings up an interesting question.. Since APD changed the solenoid firing did they redo the CE testing for that function?? Since setpoint maintenance is a required test for Rebreather CE certification.. This issue is directly connected to the original question? If you're worried, I'm sure Nicky or Martin will be delighted to answer your question Since there seems to be so much doubt expressed on this site about the AV of CE, I don't care either way. Charlie
(Offline)

6th January 2007, 14:06	#7 (permalink)
*jradomski* Moderator Current Rebreather/s: Inspiration Classic Sport Kiss Optima rEvo Other CCR Other Rebreather/s: Inspiration Vision Evolution Megalodon Classic Kiss rEvo Other CCR Join Date: Mar 2005 Location: "Da" Bronx Posts: 3,115	Re: Vision solenoid timing Quote: (Originally Posted by CharlieT) This issue is directly connected to the original question? If you're worried, I'm sure Nicky or Martin will be delighted to answer your question Since there seems to be so much doubt expressed on this site about the AV of CE, I don't care either way. Charlie I'm not worried in the least.. APD has always seemd to be resposive to its customer's needs.. This thread just got me thinking what changes a manufacturer could do without having to retest.. __________________ Joe Radomski CCR Trimix Instructor Trainer ANDI Instructor Trainer Director #10 All posts are personal opinions and DO NOT reflect any affiliated agency unless specifically stated. Last edited by jradomski : 6th January 2007 at 14:09.
(Offline)

6th January 2007, 14:16	#8 (permalink)
dave t RBW Member Current Rebreather/s: Inspiration Classic Inspiration Vision Evolution Sport Kiss Classic Kiss Dolphin Ray Azimuth Home Build Other Rebreather/s: Dolphin Ray Azimuth Home Build Join Date: May 2005 Location: UK Posts: 674	Re: Vision solenoid timing I think the CE requirements regarding setpoint is its acuracy not how its achieved. There are a lot of people knocking the CE mark and some say its biased towards one particular rebreather, well that may or may not be true but the point is when the CE test was devised there was only one rebreather on the market. whether you belive the validity or not at least it shows scientific data to back up the performance claims by the manufacurer. Personally I would feel happier diving a rebreather that has some data testing than none at all. A bunch of guys diving a Rebreather and saying "well we all did x hours on that scrubber and no one had any problems so it must be ok for x hours" is not proper testing. On the downside the CE mark does hinder development by gifted engineers who's only weakness is lack of dosh to fund their project with just my opinion Dave
(Online)

6th January 2007, 18:58	#9 (permalink)
Forest Diver New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Join Date: Aug 2006 Location: Gloucestershire Posts: 20	Re: Vision solenoid timing Quote: (Originally Posted by CharlieT) First welcome to an excellent site If you've spoken to Nicky at AP, why isn't her correct explanation enough for you? The software change she mentioned was one of a number of revisions. Charlie Thanks Charlie and to all the other who have answered - my mind is now set at rest. I was 99% happy with the answer given by Nicky. I have have had a factory tour and was extremely impressed by the professionalism of Martin and his staff - this was two years ago and was a considerable factor in my choice of unit. Nevertheless I always try to validate information especailly if the person giving information is not truly independant. I hope asking this question is not seen as offensive, it certainly isn't meant to be any sort of disrespect but this is my life support equipment and I want to certain what I am being told is correct.
(Offline)

7th January 2007, 01:40	#10 (permalink)
*jradomski* Moderator Current Rebreather/s: Inspiration Classic Sport Kiss Optima rEvo Other CCR Other Rebreather/s: Inspiration Vision Evolution Megalodon Classic Kiss rEvo Other CCR Join Date: Mar 2005 Location: "Da" Bronx Posts: 3,115	Re: Vision solenoid timing Quote: (Originally Posted by dave t) I think the CE requirements regarding setpoint is its acuracy not how its achieved. Dave Agreed, The testing has 2 parameters, 1 was error from chosen setpoint and the other was the maxim drop allowed during an ascent, allowing for 1 minute to return after a constant depth is achieved.. But if you change the alg at all, It is Different and by the spirit of the regs probably requires retesting.. __________________ Joe Radomski CCR Trimix Instructor Trainer ANDI Instructor Trainer Director #10 All posts are personal opinions and DO NOT reflect any affiliated agency unless specifically stated.
(Offline)

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode