Stand-Alone Computer Based on Buhlmann w/GF?

PacketSniffer · 19th July 2006, 22:54

Since a dive computer (run by fixed PPO2) based on Buhlmann ZH-L16 w/Gradient Factors is not on the market at this time, does anyone have any information that a manufacturer is working on a product/firmware update?

Thanks,

Richard

Edit: I'm seeing what's available for serving as a backup to the onboard CCR deco electronics as well as for OC use.

-----------------------------------------------------

UPDATE July '06

Contrary to my first understanding, there are indeed a few dive computers (with fixed PPO2) based on the Buhlmann ZH-L16 algorithm with Gradient Factors that can be used in stand-alone mode (i.e., no rebreather connected). They are as follows:

Shearwater (Pictures are here)

Tachyon (Currently vaporware. Due out in October (in time for DEMA).)

.

Stephane · 19th July 2006, 23:04

Hi,

You have the Shearwater, the HS Explorer and maybe the VR3 (not sure of this one).

PacketSniffer · 19th July 2006, 23:55

Quote: (Originally Posted by Tino Corp.)

Hi,

You have the Shearwater, the HS Explorer and maybe the VR3 (not sure of this one).

Can the Shearwater be purchased for stand-alone use if I wanted to use it as a backup computer with GF??? That's what I'm talking about.

Hmm, I looked at the HS Explorer. I see that it does RGBM. I didn't see that it does GF. Is that a very new feature?

PacketSniffer · 20th July 2006, 00:13

Quote: (Originally Posted by Tino Corp.)

Hi,

You have the Shearwater, the HS Explorer and maybe the VR3 (not sure of this one).

Ahh, ok, I got to the Shearwater Yahoo message board. I see my answer there. Thanks!

bgpartri · 20th July 2006, 00:36

I have to apologize for my lame website. I have been working on a new site for the last few days and I hope to put it up by Monday.

It will provide a lot more information on the products and the company.

I am also incorporating the Yahoo FAQ list into a FAQ page on the web site.

***EBT*** · 20th July 2006, 00:52

the hummer head is also available in stand alone mode.

PacketSniffer · 20th July 2006, 00:53

Quote: (Originally Posted by bgpartri)

I am also incorporating the Yahoo FAQ list into a FAQ page on the web site.

Bruce,

Does the current Shearwater computer look like the one in the brochure that's on the site? I thought I saw some pics of some that had a stainless steel cover. They also looked more rectangular in the pics than square.

Thanks

bgpartri · 20th July 2006, 01:33

Yes, that is a current picture of the Shearwater. There are a lot more pictures on my picture website at http://www.brucepartridge.com

***jradomski*** · 20th July 2006, 02:14

Quote: (Originally Posted by EBT)

the hummer head is also available in stand alone mode.

without integrating into the loop the HH wound not be suitable.. It does not have a "programmed" constant po2.. and for OC use it doesn't have the capabilities to do a predictive ascent based on programmed gasses.. The predicted ascent (TTS) is based on the current gas.. It does support 10 gas switches and will give you the proper deco, but that was really designed for bailout use so the prediction is longer since subsequent richer gases are not taken into account.

PacketSniffer · 20th July 2006, 19:30

Quote: (Originally Posted by jradomski)

without integrating into the loop the HH wound not be suitable.. It does not have a "programmed" constant po2.. and for OC use it doesn't have the capabilities to do a predictive ascent based on programmed gasses.. The predicted ascent (TTS) is based on the current gas.. It does support 10 gas switches and will give you the proper deco, but that was really designed for bailout use so the prediction is longer since subsequent richer gases are not taken into account.

Joe,

I found info on the JM site that conflicts with your statement. Are you sure about it not having a fixed PPO2 while using stand-alone?

"you disconnect the cable leading to the Head, Cap the Fischer Bulkhead Connector, and go diving Open Circuit with your Dive Computer still strapped to your wrist...
You now have not only a CCR Controller/Computer, but a perfectly viable OC Dive Computer (or fixed ppO2 CCR Computer) to take with you should you choose to leave your Inspiration® back on the boat!"

http://www.rebreather.us/Hammerhead/Hammerhead2.htm
(The text is located alongside the last picture on the page.)

Thanks,

Richard

19th July 2006, 22:54	#1 (permalink)
PacketSniffer ~~~~~ #417 ~~~~~ Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Jun 2006 Location: Houston Posts: 437	Stand-Alone Computer Based on Buhlmann w/GF? Since a dive computer (run by fixed PPO2) based on Buhlmann ZH-L16 w/Gradient Factors is not on the market at this time, does anyone have any information that a manufacturer is working on a product/firmware update? Thanks, Richard Edit: I'm seeing what's available for serving as a backup to the onboard CCR deco electronics as well as for OC use. ----------------------------------------------------- UPDATE July '06 Contrary to my first understanding, there are indeed a few dive computers (with fixed PPO2) based on the Buhlmann ZH-L16 algorithm with Gradient Factors that can be used in stand-alone mode (i.e., no rebreather connected). They are as follows: Shearwater (Pictures are here) Tachyon (Currently vaporware. Due out in October (in time for DEMA).) . __________________ Far better it is to dare mighty things, to win glorious triumphs, even though checked by failure, than to take rank with those poor spirits who neither enjoy much nor suffer much, because they live in the gray twilight that knows not victory or defeat. Last edited by PacketSniffer : 21st July 2006 at 23:44.
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19th July 2006, 23:04	#2 (permalink)
Stephane Stéphane Acounis Current Rebreather/s: rEvo Other Rebreather/s: rEvo Join Date: Nov 2005 Location: Nantes - France Posts: 788	Re: Stand-Alone Computer Based on Buhlmann w/GF? Hi, You have the Shearwater, the HS Explorer and maybe the VR3 (not sure of this one). __________________ Stéphane
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19th July 2006, 23:55	#3 (permalink)
PacketSniffer ~~~~~ #417 ~~~~~ Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Jun 2006 Location: Houston Posts: 437	Re: Stand-Alone Computer Based on Buhlmann w/GF? Quote: (Originally Posted by Tino Corp.) Hi, You have the Shearwater, the HS Explorer and maybe the VR3 (not sure of this one). Can the Shearwater be purchased for stand-alone use if I wanted to use it as a backup computer with GF??? That's what I'm talking about. Hmm, I looked at the HS Explorer. I see that it does RGBM. I didn't see that it does GF. Is that a very new feature? __________________ Far better it is to dare mighty things, to win glorious triumphs, even though checked by failure, than to take rank with those poor spirits who neither enjoy much nor suffer much, because they live in the gray twilight that knows not victory or defeat.
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20th July 2006, 00:13	#4 (permalink)
PacketSniffer ~~~~~ #417 ~~~~~ Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Jun 2006 Location: Houston Posts: 437	Re: Stand-Alone Computer Based on Buhlmann w/GF? Quote: (Originally Posted by Tino Corp.) Hi, You have the Shearwater, the HS Explorer and maybe the VR3 (not sure of this one). Ahh, ok, I got to the Shearwater Yahoo message board. I see my answer there. Thanks! __________________ Far better it is to dare mighty things, to win glorious triumphs, even though checked by failure, than to take rank with those poor spirits who neither enjoy much nor suffer much, because they live in the gray twilight that knows not victory or defeat.
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20th July 2006, 00:36	#5 (permalink)
bgpartri CEO-Shearwater Current Rebreather/s: Megalodon Other Rebreather/s: Inspiration Classic Sport Kiss Classic Kiss Titan Join Date: Apr 2005 Location: Vancouver, Canada Posts: 423	Re: Stand-Alone Computer Based on Buhlmann w/GF? I have to apologize for my lame website. I have been working on a new site for the last few days and I hope to put it up by Monday. It will provide a lot more information on the products and the company. I am also incorporating the Yahoo FAQ list into a FAQ page on the web site. __________________ http://www.shearwaterresearch.com Good judgment comes from experience. Experience comes from bad judgment.
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20th July 2006, 00:52	#6 (permalink)
*EBT* Apprentice Luddite Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Feb 2005 Location: UK, Brighton Posts: 2,109	Re: Stand-Alone Computer Based on Buhlmann w/GF? the hummer head is also available in stand alone mode. __________________ Eagles May Soar, but weasels don't get sucked into jet engines! RBW Terms of service
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20th July 2006, 00:53	#7 (permalink)
PacketSniffer ~~~~~ #417 ~~~~~ Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Jun 2006 Location: Houston Posts: 437	Re: Stand-Alone Computer Based on Buhlmann w/GF? Quote: (Originally Posted by bgpartri) I am also incorporating the Yahoo FAQ list into a FAQ page on the web site. Bruce, Does the current Shearwater computer look like the one in the brochure that's on the site? I thought I saw some pics of some that had a stainless steel cover. They also looked more rectangular in the pics than square. Thanks __________________ Far better it is to dare mighty things, to win glorious triumphs, even though checked by failure, than to take rank with those poor spirits who neither enjoy much nor suffer much, because they live in the gray twilight that knows not victory or defeat.
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20th July 2006, 01:33	#8 (permalink)
bgpartri CEO-Shearwater Current Rebreather/s: Megalodon Other Rebreather/s: Inspiration Classic Sport Kiss Classic Kiss Titan Join Date: Apr 2005 Location: Vancouver, Canada Posts: 423	Re: Stand-Alone Computer Based on Buhlmann w/GF? Yes, that is a current picture of the Shearwater. There are a lot more pictures on my picture website at http://www.brucepartridge.com __________________ http://www.shearwaterresearch.com Good judgment comes from experience. Experience comes from bad judgment.
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20th July 2006, 02:14	#9 (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: 3,113	Re: Stand-Alone Computer Based on Buhlmann w/GF? Quote: (Originally Posted by EBT) the hummer head is also available in stand alone mode. without integrating into the loop the HH wound not be suitable.. It does not have a "programmed" constant po2.. and for OC use it doesn't have the capabilities to do a predictive ascent based on programmed gasses.. The predicted ascent (TTS) is based on the current gas.. It does support 10 gas switches and will give you the proper deco, but that was really designed for bailout use so the prediction is longer since subsequent richer gases are not taken into account. __________________ 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.
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20th July 2006, 19:30	#10 (permalink)
PacketSniffer ~~~~~ #417 ~~~~~ Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Jun 2006 Location: Houston Posts: 437	Re: Stand-Alone Computer Based on Buhlmann w/GF? Quote: (Originally Posted by jradomski) without integrating into the loop the HH wound not be suitable.. It does not have a "programmed" constant po2.. and for OC use it doesn't have the capabilities to do a predictive ascent based on programmed gasses.. The predicted ascent (TTS) is based on the current gas.. It does support 10 gas switches and will give you the proper deco, but that was really designed for bailout use so the prediction is longer since subsequent richer gases are not taken into account. Joe, I found info on the JM site that conflicts with your statement. Are you sure about it not having a fixed PPO2 while using stand-alone? "you disconnect the cable leading to the Head, Cap the Fischer Bulkhead Connector, and go diving Open Circuit with your Dive Computer still strapped to your wrist... You now have not only a CCR Controller/Computer, but a perfectly viable OC Dive Computer (or fixed ppO2 CCR Computer) to take with you should you choose to leave your Inspiration® back on the boat!" http://www.rebreather.us/Hammerhead/Hammerhead2.htm (The text is located alongside the last picture on the page.) Thanks, Richard __________________ Far better it is to dare mighty things, to win glorious triumphs, even though checked by failure, than to take rank with those poor spirits who neither enjoy much nor suffer much, because they live in the gray twilight that knows not victory or defeat.
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