Shearwater on the PRISM

Chris · 30th March 2006, 03:42

Hi Guys
As I still have a dislike for the PRISM Analogue Secondary, it’s just too fragile for me. I am still looking for a replacement to making it digital.

There is one still on the cards for the ColKan Eagle due out in 07 that may well work but it only gives the readings for the three cells and ETA is still not available

SO

Now I have just been having a good read over the Shearwater handset information pertaining to the Kiss CCR's and it looks the goods and may well work nicely as a secondary on the PRISM.

So I am wondering how hard it would be to swap the existing secondary out and see if Bruce can recalibrate the Shearwater to the output of the SMI Cells of 16-22mv as oppose to the Kiss that is about 10mv? Or maybe I can just pull it back on Cal Pots already in the PRISM?

http://www.brucepartridge.com/thumbnails.php?album=2

Cheers
Chris

Jason Blackwell · 30th March 2006, 04:53

or just buy a meg?

or an Inspo, Evo, Opto, ???o......

sorry,

actually it is a good idea.

Chris · 30th March 2006, 05:00

Quote: (Originally Posted by Jason Blackwell)

or just buy a meg?

or an Inspo, Evo, Opto, ???o......

sorry,

actually it is a good idea.

Hi Jason
I am really enjoying diving the PRISM at the moment it is diving like a dream, I plan to pick up a Meg as a second unit early 2007, but I think the Shearwater handset would do wonders for the PRISM.

As for your other suggested units yes they are all fine beasts but for my money the Meg will be my next purchase.

Cheers
Chriso

silent running · 30th March 2006, 05:05

Howdy Chris, where does the power for the Shearwater display come from? Are there batteries in the handset? -Andy

Chris · 30th March 2006, 07:39

Quote: (Originally Posted by silent running)

Howdy Chris, where does the power for the Shearwater display come from? Are there batteries in the handset? -Andy

HI Andy
Yep batteries are in the handset.

Cheers
Chris

***caveseeker7*** · 30th March 2006, 07:51

Chris, I suggest you contact Bruce directly and see if the handset can be adapted to the HO cells. Another option would be the Divematics secondary that according to Tracy can be used (and has been on MK series RBs). Downside is that you'll loose battery and setpoint readouts and still only have a single cell on the display at a time. Which one is shown by a LED below. The display is backlit and the cell readout can be stopped on any cell to track response to gas or depth change. Battery is in the handset, too. For details you have to contact Divematics.

silent running · 30th March 2006, 07:56

Quote: (Originally Posted by Chris)

HI Andy
Yep batteries are in the handset.

Cheers
Chris

Gotcha. Then another benefit would be getting the deco info from the Shearwater handset. But what's the alg used in the Shearwater? I wonder how it would interpret the sensor input/SP info compared to the Prism controller? And how does it compare with your nice, independent deco computer alg? Whichever one you dive...
I saw a prototype SMI deco computer console at Beneath The Sea, which is O2 HP hose integrated. It had a nice, big RGBM driven display and good, solid feeling buttons. This is the short term solution to the proposed HUD/video integrated hockey puck which will replace the head cap. It will be the dog's bollocks for those looking for do-all capability in a very small package.
Me, I anticipate a continued retrograde to a more and more simple rig-no integrated anything and as little batteries/high current running my electronics as possible. Which means a decent deco stand alone computer + BT/tables and a nice, potted SP controller which is impervious to any depth sufferable by human tissue. -Andy

Chris · 30th March 2006, 08:11

Hi Stefan

Yep been in touch with Bruce he is having a look.

I dont like the Divematics I really want to be able to see all my cell outputs on the one screen.

Hi Andy

Alogorithim in the Shearwater is GF
I was not even thinking of the Setpoint/Battery Info from the head to the secondary, dont need them anyway, so no point plugging them into the Shearwater, would be nice if it could display them, but its not a show stopper for me.

Don't know about you but with over 12 months wait for a new PRISM, I am not holding my breath for any intergrated Deco or video HUD from SMI anytime soon.

And if Bruce can get working solution then why bother with the SMI one ?

Cheers
Chris

Micko · 30th March 2006, 08:50

Chris nice idea mate hope this works for you.

silent running · 30th March 2006, 09:20

Quote: (Originally Posted by Chris)

Hi Andy

Alogorithim in the Shearwater is GF
I was not even thinking of the Setpoint/Battery Info from the head to the secondary, dont need them anyway, so no point plugging them into the Shearwater, would be nice if it could display them, but its not a show stopper for me.

Don't know about you but with over 12 months wait for a new PRISM, I am not holding my breath for any intergrated Deco or video HUD from SMI anytime soon.

And if Bruce can get working solution then why bother with the SMI one ?

Cheers
Chris

Dr. Chris, no doubt that waiting for an SMI integrated deco option would be a longshot. I was refering to the idea that the Shearwater might give a different interpretation of the cell output, from a software, averaging standpoint-how does it interpret the raw Mv's into digits-than the Prism SP controller. That's all. If the SP controller or solenoid took a dump, it would still be able to get you out of the water, no doubt. -Andy

30th March 2006, 03:42	#1 (permalink)
Chris Go Nude Or Go Home Current Rebreather/s: Megalodon Other Rebreather/s: Inspiration Classic Megalodon Prism Topaz Sport Kiss Join Date: Feb 2005 Location: Perth, Western Australia Posts: 609	Shearwater on the PRISM Hi Guys As I still have a dislike for the PRISM Analogue Secondary, it’s just too fragile for me. I am still looking for a replacement to making it digital. There is one still on the cards for the ColKan Eagle due out in 07 that may well work but it only gives the readings for the three cells and ETA is still not available SO Now I have just been having a good read over the Shearwater handset information pertaining to the Kiss CCR's and it looks the goods and may well work nicely as a secondary on the PRISM. So I am wondering how hard it would be to swap the existing secondary out and see if Bruce can recalibrate the Shearwater to the output of the SMI Cells of 16-22mv as oppose to the Kiss that is about 10mv? Or maybe I can just pull it back on Cal Pots already in the PRISM? http://www.brucepartridge.com/thumbnails.php?album=2 Cheers Chris __________________ Megalodon Sorb and Sensors whilst in Australia www.divetub.com.au Diving & Photography @ www.uwphotog.com Last edited by Chris : 30th March 2006 at 07:47.
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30th March 2006, 04:53	#2 (permalink)
Jason Blackwell Bloody Rebreathers! Current Rebreather/s: Inspiration Classic Sport Kiss Optima Dolphin Ray Other Rebreather/s: Not Bought Yet Inspiration Vision Evolution Classic Kiss Dolphin Ray Join Date: Feb 2005 Location: Brisbane, Queensland, AUSTRALIA Posts: 361	Re: Shearwater on the PRISM or just buy a meg? or an Inspo, Evo, Opto, ???o...... sorry, actually it is a good idea. __________________ Jason Blackwell TDI Instructor Trainer #1358 Optima...Inspiration/Evolution...KISS...and what is next??? www.divedivedive.com.au OZTeK '09 March 2009 Sydney, Australia www.diveoztek.com.au
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30th March 2006, 05:00	#3 (permalink)
Chris Go Nude Or Go Home Current Rebreather/s: Megalodon Other Rebreather/s: Inspiration Classic Megalodon Prism Topaz Sport Kiss Join Date: Feb 2005 Location: Perth, Western Australia Posts: 609	Re: Shearwater on the PRISM Quote: (Originally Posted by Jason Blackwell) or just buy a meg? or an Inspo, Evo, Opto, ???o...... sorry, actually it is a good idea. Hi Jason I am really enjoying diving the PRISM at the moment it is diving like a dream, I plan to pick up a Meg as a second unit early 2007, but I think the Shearwater handset would do wonders for the PRISM. As for your other suggested units yes they are all fine beasts but for my money the Meg will be my next purchase. Cheers Chriso __________________ Megalodon Sorb and Sensors whilst in Australia www.divetub.com.au Diving & Photography @ www.uwphotog.com
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30th March 2006, 05:05	#4 (permalink)
silent running Mature mouth breather Current Rebreather/s: Prism Topaz Other Rebreather/s: Join Date: Jun 2005 Location: U.S.A. Brooklyn, New York Posts: 1,836	Re: Shearwater on the PRISM Howdy Chris, where does the power for the Shearwater display come from? Are there batteries in the handset? -Andy
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30th March 2006, 07:39	#5 (permalink)
Chris Go Nude Or Go Home Current Rebreather/s: Megalodon Other Rebreather/s: Inspiration Classic Megalodon Prism Topaz Sport Kiss Join Date: Feb 2005 Location: Perth, Western Australia Posts: 609	Re: Shearwater on the PRISM Quote: (Originally Posted by silent running) Howdy Chris, where does the power for the Shearwater display come from? Are there batteries in the handset? -Andy HI Andy Yep batteries are in the handset. Cheers Chris __________________ Megalodon Sorb and Sensors whilst in Australia www.divetub.com.au Diving & Photography @ www.uwphotog.com
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30th March 2006, 07:51	#6 (permalink)
*caveseeker7* Who loves ya, baby Current Rebreather/s: Sport Kiss Other Rebreather/s: Prism Topaz Join Date: Jan 2005 Location: Too far from Neverland Posts: 5,498	Re: Shearwater on the PRISM Chris, I suggest you contact Bruce directly and see if the handset can be adapted to the HO cells. Another option would be the Divematics secondary that according to Tracy can be used (and has been on MK series RBs). Downside is that you'll loose battery and setpoint readouts and still only have a single cell on the display at a time. Which one is shown by a LED below. The display is backlit and the cell readout can be stopped on any cell to track response to gas or depth change. Battery is in the handset, too. For details you have to contact Divematics. __________________ 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.!" Last edited by caveseeker7 : 31st March 2006 at 01:08.
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30th March 2006, 07:56	#7 (permalink)
silent running Mature mouth breather Current Rebreather/s: Prism Topaz Other Rebreather/s: Join Date: Jun 2005 Location: U.S.A. Brooklyn, New York Posts: 1,836	Re: Shearwater on the PRISM Quote: (Originally Posted by Chris) HI Andy Yep batteries are in the handset. Cheers Chris Gotcha. Then another benefit would be getting the deco info from the Shearwater handset. But what's the alg used in the Shearwater? I wonder how it would interpret the sensor input/SP info compared to the Prism controller? And how does it compare with your nice, independent deco computer alg? Whichever one you dive... I saw a prototype SMI deco computer console at Beneath The Sea, which is O2 HP hose integrated. It had a nice, big RGBM driven display and good, solid feeling buttons. This is the short term solution to the proposed HUD/video integrated hockey puck which will replace the head cap. It will be the dog's bollocks for those looking for do-all capability in a very small package. Me, I anticipate a continued retrograde to a more and more simple rig-no integrated anything and as little batteries/high current running my electronics as possible. Which means a decent deco stand alone computer + BT/tables and a nice, potted SP controller which is impervious to any depth sufferable by human tissue. -Andy Last edited by silent running : 30th March 2006 at 08:11.
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30th March 2006, 08:11	#8 (permalink)
Chris Go Nude Or Go Home Current Rebreather/s: Megalodon Other Rebreather/s: Inspiration Classic Megalodon Prism Topaz Sport Kiss Join Date: Feb 2005 Location: Perth, Western Australia Posts: 609	Re: Shearwater on the PRISM Hi Stefan Yep been in touch with Bruce he is having a look. I dont like the Divematics I really want to be able to see all my cell outputs on the one screen. Hi Andy Alogorithim in the Shearwater is GF I was not even thinking of the Setpoint/Battery Info from the head to the secondary, dont need them anyway, so no point plugging them into the Shearwater, would be nice if it could display them, but its not a show stopper for me. Don't know about you but with over 12 months wait for a new PRISM, I am not holding my breath for any intergrated Deco or video HUD from SMI anytime soon. And if Bruce can get working solution then why bother with the SMI one ? Cheers Chris __________________ Megalodon Sorb and Sensors whilst in Australia www.divetub.com.au Diving & Photography @ www.uwphotog.com
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30th March 2006, 08:50	#9 (permalink)
Micko Custom Title Allowed! Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Dec 2005 Location: perth Posts: 114	Re: Shearwater on the PRISM Chris nice idea mate hope this works for you.
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30th March 2006, 09:20	#10 (permalink)
silent running Mature mouth breather Current Rebreather/s: Prism Topaz Other Rebreather/s: Join Date: Jun 2005 Location: U.S.A. Brooklyn, New York Posts: 1,836	Re: Shearwater on the PRISM Quote: (Originally Posted by Chris) Hi Andy Alogorithim in the Shearwater is GF I was not even thinking of the Setpoint/Battery Info from the head to the secondary, dont need them anyway, so no point plugging them into the Shearwater, would be nice if it could display them, but its not a show stopper for me. Don't know about you but with over 12 months wait for a new PRISM, I am not holding my breath for any intergrated Deco or video HUD from SMI anytime soon. And if Bruce can get working solution then why bother with the SMI one ? Cheers Chris Dr. Chris, no doubt that waiting for an SMI integrated deco option would be a longshot. I was refering to the idea that the Shearwater might give a different interpretation of the cell output, from a software, averaging standpoint-how does it interpret the raw Mv's into digits-than the Prism SP controller. That's all. If the SP controller or solenoid took a dump, it would still be able to get you out of the water, no doubt. -Andy
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