Boris course with Phil at Stoney

dave t · 19th April 2006, 11:06

Quote: (Originally Posted by CCR900)

The 'calibration factor', on the passive, is highly complicated and would take hours to explain! Alternatively you do your cailbration on the primary see the the PO2 readings and then compare them to the passive, you then adjust the passive to the primary. You can check the cell MV reading on the passive too but its very much a manaul flight option if your HUD and hand set go bye byes.

F
P.S. All ahndsets are reading off the same three cells, so by the primary adjusting during calibration so does the passive.

Err I dont know anything about the boris but how doeas the electronic calibration of the primary set the passive cal? Its not the cells that get calibrated its the output reading. because all cells have a slightly different mv output cal is needed to bring them all into line and tell the computer that 50mv = 1bar (example)

A trim pot is just a mechanical way of doing what the computer does electronically

Dave

CCR900 · 19th April 2006, 13:23

I should have known better than to open my mouth!!

What I was trying to say was, you calibrate your primary as you would say the Vision and then as an added support you take each value (knowning that you have not changed the ambient pressure nor cells) and set that value against the equal and opposite display on the other handset. The passive readings are dumb, they are not involved in any computed control of set point.

I must point out that they are no different from say your KISS handset, so you are welcome to calibrate on air on the day before but might I suggest you readings could be slightly different with your primary during your dive.

The idea is to give you another opportunity at looking at your PO2.

F

Drmike · 19th April 2006, 16:20

Phi, unlike the MK15 the secondary cal pots are 'exposed' not under a sealed plug so the manual cal of the passive is 'easier' than on a MK15 thats what I meant. Complete the primary electronic cal then manual adjust pots to match

Drmike · 30th April 2006, 07:42

After my course went straight to Red sea for 5 days on Boris.

Did some 80m+ dives and a few 100m ones.

observations so far;

1. Despite what I was told Boris does NOT weigh 32kg in its box...you have to take the backplate off if you want to fly it from uk (on the floor infront of check out

)
2. Hydrophobic membrane is a MUST unless you like caustic mouthwash
3. Be careful some badly fitted scrubber fins dont fall out when emptying fill
4. No auto setpoint switch makes it easy to forget to er increase and get more deco

5. Swims fine even on 3hour cont. swims with 2x12L stages and a camera
6. Easy to work on
7. Wet switch auto start gets annoying when cleaning or moving kit
8. With the little 2L tanks its easy to um er run out of O2 on big dives....

9. I love the electronics, the info you can see on the vr3 pages is really usefull.
10. Smooth internal bore hoses have significantly less gurgling and easier to clear than usual type

iani · 30th April 2006, 07:59

Quote: (Originally Posted by Drmike)

After my course went straight to Red sea for 5 days on Boris.

Did some 80m+ dives and a few 100m ones.

observations so far;

1. Despite what I was told Boris does NOT weigh 32kg in its box...you have to take the backplate off if you want to fly it from uk (on the floor infront of check out

)
<snip>

What did the unit weigh with the bp? was it dry?

Ian

Drmike · 30th April 2006, 08:26

Quote: (Originally Posted by iani)

What did the unit weigh with the bp? was it dry?

Ian

Dry. Without the plate it was 31.4kg IIRC the plate/harness was around 4kg

Drmike · 1st May 2006, 11:09

Pics uploaded to website

http://drmike.smugmug.com/gallery/1416936

decoweenie · 1st May 2006, 12:11

Quote: (Originally Posted by Drmike)

Pics uploaded to website

I must say the unit looks quite nice...

Oh boy, my wife would "gut me like a fish"...

Drmike · 1st May 2006, 12:15

Quote: (Originally Posted by decoweenie)

I must say the unit looks quite nice...

ha ha, and so it begins!

JonnyB · 1st May 2006, 12:16

Hey Mike, nice pics, though i am awaiting for one thing.

Mk or Boris?

/Jonny

19th April 2006, 11:06	#11 (permalink)
dave t Custom Title Allowed! 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: 613	Re: Boris course with Phil at Stoney Quote: (Originally Posted by CCR900) The 'calibration factor', on the passive, is highly complicated and would take hours to explain! Alternatively you do your cailbration on the primary see the the PO2 readings and then compare them to the passive, you then adjust the passive to the primary. You can check the cell MV reading on the passive too but its very much a manaul flight option if your HUD and hand set go bye byes. F P.S. All ahndsets are reading off the same three cells, so by the primary adjusting during calibration so does the passive. Err I dont know anything about the boris but how doeas the electronic calibration of the primary set the passive cal? Its not the cells that get calibrated its the output reading. because all cells have a slightly different mv output cal is needed to bring them all into line and tell the computer that 50mv = 1bar (example) A trim pot is just a mechanical way of doing what the computer does electronically Dave
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19th April 2006, 13:23	#12 (permalink)
CCR900 Custom Title Allowed! Current Rebreather/s: Ouroboros Other Rebreather/s: Inspiration Classic Inspiration Vision Join Date: Nov 2005 Location: England Posts: 331	Re: Boris course with Phil at Stoney I should have known better than to open my mouth!! What I was trying to say was, you calibrate your primary as you would say the Vision and then as an added support you take each value (knowning that you have not changed the ambient pressure nor cells) and set that value against the equal and opposite display on the other handset. The passive readings are dumb, they are not involved in any computed control of set point. I must point out that they are no different from say your KISS handset, so you are welcome to calibrate on air on the day before but might I suggest you readings could be slightly different with your primary during your dive. The idea is to give you another opportunity at looking at your PO2. F
(Offline)

19th April 2006, 16:20	#13 (permalink)
Drmike Custom Title Allowed! Current Rebreather/s: MK 15.X Ouroboros Other CCR Home Build Other Rebreather/s: Inspiration Classic Other CCR Home Build Join Date: Feb 2005 Posts: 3,104	Re: Boris course with Phil at Stoney Phi, unlike the MK15 the secondary cal pots are 'exposed' not under a sealed plug so the manual cal of the passive is 'easier' than on a MK15 thats what I meant. Complete the primary electronic cal then manual adjust pots to match __________________ Get a girlfriend you sad twat - a Rebreather is an unfaithful mistress - dont blind yourself to her faults just because she goes down on you
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30th April 2006, 07:42	#14 (permalink)
Drmike Custom Title Allowed! Current Rebreather/s: MK 15.X Ouroboros Other CCR Home Build Other Rebreather/s: Inspiration Classic Other CCR Home Build Join Date: Feb 2005 Posts: 3,104	Re: Boris course with Phil at Stoney After my course went straight to Red sea for 5 days on Boris. Did some 80m+ dives and a few 100m ones. observations so far; 1. Despite what I was told Boris does NOT weigh 32kg in its box...you have to take the backplate off if you want to fly it from uk (on the floor infront of check out ) 2. Hydrophobic membrane is a MUST unless you like caustic mouthwash 3. Be careful some badly fitted scrubber fins dont fall out when emptying fill 4. No auto setpoint switch makes it easy to forget to er increase and get more deco 5. Swims fine even on 3hour cont. swims with 2x12L stages and a camera 6. Easy to work on 7. Wet switch auto start gets annoying when cleaning or moving kit 8. With the little 2L tanks its easy to um er run out of O2 on big dives.... 9. I love the electronics, the info you can see on the vr3 pages is really usefull. 10. Smooth internal bore hoses have significantly less gurgling and easier to clear than usual type __________________ Get a girlfriend you sad twat - a Rebreather is an unfaithful mistress - dont blind yourself to her faults just because she goes down on you
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30th April 2006, 07:59	#15 (permalink)
iani Nefarious Activist Current Rebreather/s: Ouroboros Other Rebreather/s: Inspiration Classic Join Date: Feb 2005 Location: Middlesex, UK Posts: 334	Re: Boris course with Phil at Stoney Quote: (Originally Posted by Drmike) After my course went straight to Red sea for 5 days on Boris. Did some 80m+ dives and a few 100m ones. observations so far; 1. Despite what I was told Boris does NOT weigh 32kg in its box...you have to take the backplate off if you want to fly it from uk (on the floor infront of check out ) <snip> What did the unit weigh with the bp? was it dry? Ian
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30th April 2006, 08:26	#16 (permalink)
Drmike Custom Title Allowed! Current Rebreather/s: MK 15.X Ouroboros Other CCR Home Build Other Rebreather/s: Inspiration Classic Other CCR Home Build Join Date: Feb 2005 Posts: 3,104	Re: Boris course with Phil at Stoney Quote: (Originally Posted by iani) What did the unit weigh with the bp? was it dry? Ian Dry. Without the plate it was 31.4kg IIRC the plate/harness was around 4kg __________________ Get a girlfriend you sad twat - a Rebreather is an unfaithful mistress - dont blind yourself to her faults just because she goes down on you
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1st May 2006, 11:09	#17 (permalink)
Drmike Custom Title Allowed! Current Rebreather/s: MK 15.X Ouroboros Other CCR Home Build Other Rebreather/s: Inspiration Classic Other CCR Home Build Join Date: Feb 2005 Posts: 3,104	Re: Boris course with Phil at Stoney Pics uploaded to website http://drmike.smugmug.com/gallery/1416936 __________________ Get a girlfriend you sad twat - a Rebreather is an unfaithful mistress - dont blind yourself to her faults just because she goes down on you
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1st May 2006, 12:11	#18 (permalink)
decoweenie Crash Test Dummy Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Feb 2005 Location: Cairo Posts: 5,510	Re: Boris course with Phil at Stoney Quote: (Originally Posted by Drmike) Pics uploaded to website I must say the unit looks quite nice... Oh boy, my wife would "gut me like a fish"...
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1st May 2006, 12:15	#19 (permalink)
Drmike Custom Title Allowed! Current Rebreather/s: MK 15.X Ouroboros Other CCR Home Build Other Rebreather/s: Inspiration Classic Other CCR Home Build Join Date: Feb 2005 Posts: 3,104	Re: Boris course with Phil at Stoney Quote: (Originally Posted by decoweenie) I must say the unit looks quite nice... ha ha, and so it begins! __________________ Get a girlfriend you sad twat - a Rebreather is an unfaithful mistress - dont blind yourself to her faults just because she goes down on you
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1st May 2006, 12:16	#20 (permalink)
JonnyB Jonny The Hatch Current Rebreather/s: MK 15.X Titan Home Build Other Rebreather/s: Not Bought Yet Inspiration Classic Megalodon Sport Kiss Classic Kiss Home Build Join Date: Jan 2005 Location: Sweden (Stockholm)/Cyprus(Ayia Napa) Posts: 940	Re: Boris course with Phil at Stoney Hey Mike, nice pics, though i am awaiting for one thing. Mk or Boris? /Jonny __________________ A quote from Crazyduck - In remembering our own Rob Davies. "Outbound flight 777 heavy you are cleared for flight Due west into that warm red Texas sunset You have angels on your wings and divers memories on your six." Rest In Peace http://www.divetekcyprus.com http://www.diveccr.com
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