Colkan digital secondary availability

teksimple · 15th June 2006, 02:37

Grumble, grumble.

After busting my Mk 15.5 analog secondary for the fourth time, I have decided I do not want to wait much longer for a digital version.

If anyone sees delivery of their Colkan digital secondary, would you let me know? Last time I talked to Kane they were still working on the pricing and availability. Does anyone want to sell me theirs?

So, yes you are supposed to protect these things like your own balls. But these are supposed to be military, tough, aren't they? The last two times I killed the thing was coming back across the channel from Niihau to Kauai in average Hawaiian seas. My Rebreather was on my towboard behind my Waverunner, and the secondary was wrapped in a neoprene cold water bootie. But I doubt that this was a much bouncier ride than Navy divers would experience on their inflatables, right?

On those crossings my balls were just fine and they didn't have a thick layer of neoprene protecting them like my secondary did. Apparently jewelled movements are better for more peaceful waters sans the stiff trade winds and swells like Hawaii.

Bazza · 15th June 2006, 03:59

Mate Pm Koputai (Jason) he makes them for Colkan.

regards Baz

koputai · 15th June 2006, 10:18

Kent, as I said in the pm, there's no back door, they'll be ready soon, you can hand the fun tickets over to Col and have your very own!
You must have had bad luck with your analogue, I've had mine bouncing around various oceans on some very rough rides, hell, even on Bazza's boat, and it's never failed. In the Solomons a few years ago, our units were getting bounced at least three feet in the air and slammed onto the bottom of the boat with every wave for an hour and a half each trip. Neither the Mk nor any of the Inspo's suffered, amazingly.

Regards,
Jason.

Underwaterbear · 15th June 2006, 23:36

Quote:

In the Solomons a few years ago, our units were getting bounced at least three feet in the air and slammed onto the bottom of the boat with every wave for an hour and a half each trip. Neither the Mk nor any of the Inspo's suffered, amazingly.

IMHE I would expect that would bust the arse out of a rig like mine.

So Jas, if fitted to a prism does your unit make the trim pots in the head redundant?

Cheers
AB

koputai · 16th June 2006, 01:09

Quote: (Originally Posted by Underwaterbear)

So Jas, if fitted to a prism does your unit make the trim pots in the head redundant?

I wish it would, but unfortunately the trimpots are potted in the head and are in line with the secondary output so can't be bypassed. What you can do is just set them and forget them, then use the digital calibration from then on.

Cheers,
Jason.
http://www.deepdiving.net

Skipbreather · 16th June 2006, 02:57

Hi Kent,

Another alternative for either a temporary solution or as a spare: Mark Munroe (ppO2.com) built at one time some prototype boards for homebuilt MK15 secondaries. Giving him a buzz might be worth a try.

Alternatively, I made a smaller one (for my BMR500 w/ MK15 electronics) by using one of his remote battery 3 sensor boards as a starting point. I had to strip a few traces and place a few jumpers to reverse the board’s polarity to accommodate the bizarre + common of the MK series. Email me for pix if you want to try this route.

Very best,
Ken

dive2dive2000 · 16th June 2006, 17:17

Quote: (Originally Posted by Underwaterbear)

IMHE I would expect that would bust the arse out of a rig like mine.

So Jas, if fitted to a prism does your unit make the trim pots in the head redundant?

Cheers
AB

I own a PRISM. What are Trim pots, never heard that term before?

***caveseeker7*** · 16th June 2006, 17:28

Quote: (Originally Posted by dive2dive2000)

I own a PRISM. What are Trim pots, never heard that term before?

Ooops. Aka as calibration pot.

SteveL · 17th June 2006, 12:11

Just in case you guys dont know what this is all about go to

www.deepdiving.net and have alook -

Jas,

can you put a photo up of the back and maybe one with the port removed. Wondering how do you access the battery?

Im guessing the unit just screws into the centre section as a direct PnP for original ? I am guessing that as it displayes primary battery condition there is a link from the secondary port on the center section back through the horseshoe "circuit bit" and then back into the primary somehow? Just curious on this one -

What is the setpoint reading in some of the other pics I see - how does this work if the display is just the cell mV calibrated through the trim pots?

Thanks mate and well done - look forward to seeing one in the wild - looks to be a great beastie -

Steve L

ps I bet Timbo loved pumping the pot to 650m for the leak test -

silent running · 18th June 2006, 06:15

Quote: (Originally Posted by teksimple)

Apparently jewelled movements are better for more peaceful waters sans the stiff trade winds and swells like Hawaii.

Yes, especially the single jewled movements used in the MKs. The newer Prisms have a double jeweled movement which is a bit more robust. I just returned from a Komodo liveaboard with my Prism, got mighty bouncy in the RIB. Windy, off season. 350 hrs and no problems yet with the 2dry, always keep it clipped off resting on the wing, unit on it's back.
The Colkan digi gages look excellent though, might get one myself for a back up... -Andy

15th June 2006, 02:37	#1 (permalink)
teksimple Enlightened Alpinist Current Rebreather/s: MK 15.X Other Rebreather/s: Sport Kiss Classic Kiss Join Date: Apr 2005 Location: Back in Hawaii Posts: 503	Colkan digital secondary availability Grumble, grumble. After busting my Mk 15.5 analog secondary for the fourth time, I have decided I do not want to wait much longer for a digital version. If anyone sees delivery of their Colkan digital secondary, would you let me know? Last time I talked to Kane they were still working on the pricing and availability. Does anyone want to sell me theirs? So, yes you are supposed to protect these things like your own balls. But these are supposed to be military, tough, aren't they? The last two times I killed the thing was coming back across the channel from Niihau to Kauai in average Hawaiian seas. My Rebreather was on my towboard behind my Waverunner, and the secondary was wrapped in a neoprene cold water bootie. But I doubt that this was a much bouncier ride than Navy divers would experience on their inflatables, right? On those crossings my balls were just fine and they didn't have a thick layer of neoprene protecting them like my secondary did. Apparently jewelled movements are better for more peaceful waters sans the stiff trade winds and swells like Hawaii.
(Offline)

15th June 2006, 03:59	#2 (permalink)
Bazza New Member Current Rebreather/s: Inspiration Classic Inspiration Vision Evolution rEvo Other CCR Dolphin Other Rebreather/s: Prism Topaz Sport Kiss Classic Kiss MK 15.X rEvo Other CCR Dolphin Join Date: Feb 2005 Location: Australia Posts: 167	Re: Colkan digital secondary availability Mate Pm Koputai (Jason) he makes them for Colkan. regards Baz
(Offline)

15th June 2006, 10:18	#3 (permalink)
koputai Subsea Systems Current Rebreather/s: MK 15.X Other CCR Other SCR Other Rebreather/s: Not Bought Yet Other CCR Other SCR Join Date: Jul 2005 Location: Sydney, Australia Posts: 342	Re: Colkan digital secondary availability Kent, as I said in the pm, there's no back door, they'll be ready soon, you can hand the fun tickets over to Col and have your very own! You must have had bad luck with your analogue, I've had mine bouncing around various oceans on some very rough rides, hell, even on Bazza's boat, and it's never failed. In the Solomons a few years ago, our units were getting bounced at least three feet in the air and slammed onto the bottom of the boat with every wave for an hour and a half each trip. Neither the Mk nor any of the Inspo's suffered, amazingly. Regards, Jason.
(Offline)

15th June 2006, 23:36	#4 (permalink)
Underwaterbear A Prismer in Megland Current Rebreather/s: Prism Topaz Other Rebreather/s: Join Date: May 2005 Location: Seattle, WA Posts: 192	Re: Colkan digital secondary availability Quote: In the Solomons a few years ago, our units were getting bounced at least three feet in the air and slammed onto the bottom of the boat with every wave for an hour and a half each trip. Neither the Mk nor any of the Inspo's suffered, amazingly. IMHE I would expect that would bust the arse out of a rig like mine. So Jas, if fitted to a prism does your unit make the trim pots in the head redundant? Cheers AB
(Offline)

16th June 2006, 01:09	#5 (permalink)
koputai Subsea Systems Current Rebreather/s: MK 15.X Other CCR Other SCR Other Rebreather/s: Not Bought Yet Other CCR Other SCR Join Date: Jul 2005 Location: Sydney, Australia Posts: 342	Re: Colkan digital secondary availability Quote: (Originally Posted by Underwaterbear) So Jas, if fitted to a prism does your unit make the trim pots in the head redundant? I wish it would, but unfortunately the trimpots are potted in the head and are in line with the secondary output so can't be bypassed. What you can do is just set them and forget them, then use the digital calibration from then on. Cheers, Jason. http://www.deepdiving.net
(Offline)

16th June 2006, 02:57	#6 (permalink)
Skipbreather Reads the fine print Current Rebreather/s: Megalodon Home Build Other Rebreather/s: Not Bought Yet MK 15.X Home Build Join Date: Mar 2005 Location: Chicago, Illinois, USA Posts: 557	Re: Colkan digital secondary availability Hi Kent, Another alternative for either a temporary solution or as a spare: Mark Munroe (ppO2.com) built at one time some prototype boards for homebuilt MK15 secondaries. Giving him a buzz might be worth a try. Alternatively, I made a smaller one (for my BMR500 w/ MK15 electronics) by using one of his remote battery 3 sensor boards as a starting point. I had to strip a few traces and place a few jumpers to reverse the board’s polarity to accommodate the bizarre + common of the MK series. Email me for pix if you want to try this route. Very best, Ken
(Offline)

16th June 2006, 17:17	#7 (permalink)
dive2dive2000 PRISM DIVER & LUVIN IT! Current Rebreather/s: Prism Topaz Other Rebreather/s: Join Date: Feb 2005 Location: Long Island, NY Posts: 788	Re: Colkan digital secondary availability Quote: (Originally Posted by Underwaterbear) IMHE I would expect that would bust the arse out of a rig like mine. So Jas, if fitted to a prism does your unit make the trim pots in the head redundant? Cheers AB I own a PRISM. What are Trim pots, never heard that term before? __________________ Safe Diving, Martin
(Offline)

16th June 2006, 17:28	#8 (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: 5,462	Re: Colkan digital secondary availability Quote: (Originally Posted by dive2dive2000) I own a PRISM. What are Trim pots, never heard that term before? Ooops. Aka as calibration pot. __________________ 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.!"
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17th June 2006, 12:11	#9 (permalink)
SteveL Custom Title Allowed! Current Rebreather/s: MK 15.X Other Rebreather/s: Inspiration Classic Join Date: Nov 2005 Location: Sydney Australia Posts: 222	Re: Colkan digital secondary availability Just in case you guys dont know what this is all about go to www.deepdiving.net and have alook - Jas, can you put a photo up of the back and maybe one with the port removed. Wondering how do you access the battery? Im guessing the unit just screws into the centre section as a direct PnP for original ? I am guessing that as it displayes primary battery condition there is a link from the secondary port on the center section back through the horseshoe "circuit bit" and then back into the primary somehow? Just curious on this one - What is the setpoint reading in some of the other pics I see - how does this work if the display is just the cell mV calibrated through the trim pots? Thanks mate and well done - look forward to seeing one in the wild - looks to be a great beastie - Steve L ps I bet Timbo loved pumping the pot to 650m for the leak test -
(Offline)

18th June 2006, 06:15	#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: 1,833	Re: Colkan digital secondary availability Quote: (Originally Posted by teksimple) Apparently jewelled movements are better for more peaceful waters sans the stiff trade winds and swells like Hawaii. Yes, especially the single jewled movements used in the MKs. The newer Prisms have a double jeweled movement which is a bit more robust. I just returned from a Komodo liveaboard with my Prism, got mighty bouncy in the RIB. Windy, off season. 350 hrs and no problems yet with the 2dry, always keep it clipped off resting on the wing, unit on it's back. The Colkan digi gages look excellent though, might get one myself for a back up... -Andy
(Offline)

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