O2 IP on Inspo?

Nick Kay · 14th February 2007, 16:08

Hi all

What is the Interstage Pressure for the O2 cylinder on the Inspo?

My belief is that its 7.5B and this is absolute, not relative to ambient???

Thanks

***jradomski*** · 14th February 2007, 17:15

Quote: (Originally Posted by Nick Kay)

Hi all

What is the Interstage Pressure for the O2 cylinder on the Inspo?

My belief is that its 7.5B and this is absolute, not relative to ambient???

Thanks

7.0 to 7.5 bar GUAGE

Nick Kay · 14th February 2007, 19:30

Quote: (Originally Posted by jradomski)

7.0 to 7.5 bar GUAGE

Sorry to be thick, but does that mean absolute or above ambient, i.e. at (say) 30m would the delivery pressure be 7.5B or 11.5B ?

jhaaja · 14th February 2007, 19:33

Quote: (Originally Posted by Nick Kay)

Sorry to be thick, but does that mean absolute or above ambient, i.e. at (say) 30m would the delivery pressure be 7.5B or 11.5B ?

At 30m it would be 11,5Bar. The IP is not fixed on Inspo.

JH

***jradomski*** · 14th February 2007, 23:38

Quote: (Originally Posted by Nick Kay)

Sorry to be thick, but does that mean absolute or above ambient, i.e. at (say) 30m would the delivery pressure be 7.5B or 11.5B ?

the pressure is set on the surface.. guage is absolute less surface.. the regs are depth compensating and this difference will be maintained.. it should always be 7-7.5 bar above ambient.. but the reg really isnt linear and it will generally creep up a bit..

jptaylor9 · 15th February 2007, 08:18

Quote: (Originally Posted by jradomski)

it should always be 7-7.5 bar above ambient.. but the reg really isnt linear and it will generally creep up a bit..

Isn't this why non-environmentally sealed 1st stages are recommended? Or do they just creep more?

Nick, the O2 IP on the KISS is fixed & isn't depth compensated.

***jradomski*** · 15th February 2007, 14:57

Quote: (Originally Posted by jptaylor9)

Isn't this why non-environmentally sealed 1st stages are recommended? Or do they just creep more?

Nick, the O2 IP on the KISS is fixed & isn't depth compensated.

enviromentally sealed stages creep more than enviromentally exposed regs...

I have never had any trouble with sealed stages but I always set my IP to 7 bar and use good batteries.. A potential problem comes into play where the battery doesnt have enough power to open the solenoid but appears to have enough voltage normally..so the solenoid fails to operate and doesnt generate a battery alarm..

make sure the IP is checked/adjusted with 50 bar in the cylinder.. on a full cylinder (above 170 bar) the IP may increase by up to 1 bar....

14th February 2007, 16:08	#1 (permalink)
Nick Kay New Member Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Aug 2006 Location: UK Posts: 29	O2 IP on Inspo? Hi all What is the Interstage Pressure for the O2 cylinder on the Inspo? My belief is that its 7.5B and this is absolute, not relative to ambient??? Thanks
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14th February 2007, 17:15	#2 (permalink)
*jradomski* Moderator Current Rebreather/s: Inspiration Classic Sport Kiss Optima rEvo Other CCR Home Build Other Rebreather/s: Inspiration Vision Evolution Megalodon Classic Kiss rEvo Other CCR Home Build Join Date: Mar 2005 Location: "Da" Bronx Posts: 2,897	Re: O2 IP on Inspo? Quote: (Originally Posted by Nick Kay) Hi all What is the Interstage Pressure for the O2 cylinder on the Inspo? My belief is that its 7.5B and this is absolute, not relative to ambient??? Thanks 7.0 to 7.5 bar GUAGE __________________ 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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14th February 2007, 19:30	#3 (permalink)
Nick Kay New Member Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Aug 2006 Location: UK Posts: 29	Re: O2 IP on Inspo? Quote: (Originally Posted by jradomski) 7.0 to 7.5 bar GUAGE Sorry to be thick, but does that mean absolute or above ambient, i.e. at (say) 30m would the delivery pressure be 7.5B or 11.5B ?
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14th February 2007, 19:33	#4 (permalink)
jhaaja Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Mar 2005 Location: Finland Posts: 884	Re: O2 IP on Inspo? Quote: (Originally Posted by Nick Kay) Sorry to be thick, but does that mean absolute or above ambient, i.e. at (say) 30m would the delivery pressure be 7.5B or 11.5B ? At 30m it would be 11,5Bar. The IP is not fixed on Inspo. JH
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14th February 2007, 23:38	#5 (permalink)
*jradomski* Moderator Current Rebreather/s: Inspiration Classic Sport Kiss Optima rEvo Other CCR Home Build Other Rebreather/s: Inspiration Vision Evolution Megalodon Classic Kiss rEvo Other CCR Home Build Join Date: Mar 2005 Location: "Da" Bronx Posts: 2,897	Re: O2 IP on Inspo? Quote: (Originally Posted by Nick Kay) Sorry to be thick, but does that mean absolute or above ambient, i.e. at (say) 30m would the delivery pressure be 7.5B or 11.5B ? the pressure is set on the surface.. guage is absolute less surface.. the regs are depth compensating and this difference will be maintained.. it should always be 7-7.5 bar above ambient.. but the reg really isnt linear and it will generally creep up a bit.. __________________ 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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15th February 2007, 08:18	#6 (permalink)
jptaylor9 Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Inspiration Classic Join Date: Feb 2005 Location: London, UK Posts: 318	Re: O2 IP on Inspo? Quote: (Originally Posted by jradomski) it should always be 7-7.5 bar above ambient.. but the reg really isnt linear and it will generally creep up a bit.. Isn't this why non-environmentally sealed 1st stages are recommended? Or do they just creep more? Nick, the O2 IP on the KISS is fixed & isn't depth compensated.
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15th February 2007, 14:57	#7 (permalink)
*jradomski* Moderator Current Rebreather/s: Inspiration Classic Sport Kiss Optima rEvo Other CCR Home Build Other Rebreather/s: Inspiration Vision Evolution Megalodon Classic Kiss rEvo Other CCR Home Build Join Date: Mar 2005 Location: "Da" Bronx Posts: 2,897	Re: O2 IP on Inspo? Quote: (Originally Posted by jptaylor9) Isn't this why non-environmentally sealed 1st stages are recommended? Or do they just creep more? Nick, the O2 IP on the KISS is fixed & isn't depth compensated. enviromentally sealed stages creep more than enviromentally exposed regs... I have never had any trouble with sealed stages but I always set my IP to 7 bar and use good batteries.. A potential problem comes into play where the battery doesnt have enough power to open the solenoid but appears to have enough voltage normally..so the solenoid fails to operate and doesnt generate a battery alarm.. make sure the IP is checked/adjusted with 50 bar in the cylinder.. on a full cylinder (above 170 bar) the IP may increase by up to 1 bar.... __________________ 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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