A short chaotic synthesis of my IDA-71 modifications

Corallaro · 19th June 2007, 09:54

Hi Guys

A short chaotic synthesis of my IDA-71 modifications

Giovanni

Corallaro · 19th June 2007, 09:55

For internal hydraulics i use Rilsan PA 11 4x2 hoses (44 bar) with AIGNEP push in fittings (only 15 bar)
For the diluent line use also a manifold solded in original diluent rigid hose
NOTE
i use also the 1/2 of original quick/disconnect with exernal diluent/bailout tank
internally i have the two srubbers and 1,3 litres O2 bottle and 1,3 litres diluent bottle (the old original external bottle)

PHOTOS

01 internal hydraulics
02 O2 hydraulics
03 particular of diluent input trough the sensor holder

Corallaro · 19th June 2007, 09:56

a) as a first stage i use the classic APEKS DS4 with cap to fix IP
b) as filter i use a McMastercarr Filter 10 micron
c) as orifice i use the .003 orifice from the same company that makes them for jetsam.
d) as "OR VALVE" (to protect orifice) i use a Clippard MJSV-1

PHOTOS

01 orifice in AIGNEP push in fitting
02 the semi complete system
03 the filter

Corallaro · 19th June 2007, 09:57

the front view with the manual add diluent and oxygen with a couple of Clippard MJV-2 push valve

the external diluent tank hydraulics:
The second port of quick disconnect is completely removed, i use only the first port.
And, in a normal first stage i connect the single port quick disconnect + an overpressure valve.

Corallaro · 19th June 2007, 09:58

The Electronic

I use three (3) oxygen sensor "Analitical Instruments PSR-11-75D"
and three (3) cheap "3-1/2D LCD Digital Panel Meter PM 438"

i subst the original r2 with one of 430 ohm and set the solded jumper for decimals.

no load resistor

i see that the "PM 438" have the important function of "LO BAT" and in "lo bat" the reading is more Ok..
another LED Diplay that i used for experiment when the battery is low give higher value then real whit risk of hipoxia

Corallaro · 19th June 2007, 10:00

as weights i prefer to use some low profile weights of full lead.
more weight little volume, to save the counterlung volume
the total weight is 5,75 kg

Corallaro · 19th June 2007, 10:00

and in the end, the pressure pot and a particular of solded manifold with old hoses

PS

excuse me for my english....

paulraymaekers · 19th June 2007, 10:54

hello, very nice!! especially the lead weights!!

but be careful with the swagelok valves: you will find they block open very easaly if you don't change the spring intenally!!

paul

Corallaro · 19th June 2007, 11:17

Hi Paul....

about the mod of clippard can you tell me the model or type of new spring and how i mount it?

in the clippard there are two spring
one "internal" for return of button and
other under the valve in "external" position

i think to add a new spring externally on the spring under the valve

can you send me a photo of modded clippard?

many thanks

Giovanni

Nad · 19th June 2007, 12:45

What's about the hoses? Dolphin?

Nad

19th June 2007, 10:54	#8 (permalink)
paulraymaekers rEvo's daddy Current Rebreather/s: rEvo Other CCR Home Build Other Rebreather/s: rEvo Other CCR Home Build Join Date: May 2005 Location: belgium Posts: 1,638	Re: A short chaotic synthesis of my IDA-71 modifications hello, very nice!! especially the lead weights!! but be careful with the swagelok valves: you will find they block open very easaly if you don't change the spring intenally!! paul __________________ www.rEvo-rebreathers.com .... the earth is flat, Elvis is alive, and radial scrubbers give longer dwell time than axials...
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19th June 2007, 11:17	#9 (permalink)
Corallaro IDA-71,IDA-76,NaubosAR90 Current Rebreather/s: Other CCR Other Rebreather/s: Not Bought Yet Other CCR Join Date: Oct 2006 Location: Italia - Sicilia Posts: 248	Re: A short chaotic synthesis of my IDA-71 modifications Hi Paul.... about the mod of clippard can you tell me the model or type of new spring and how i mount it? in the clippard there are two spring one "internal" for return of button and other under the valve in "external" position i think to add a new spring externally on the spring under the valve can you send me a photo of modded clippard? many thanks Giovanni
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19th June 2007, 12:45	#10 (permalink)
Nad Rebel to the Bone Current Rebreather/s: Ouroboros Other CCR Other Rebreather/s: Not Bought Yet Inspiration Classic Other CCR Join Date: Mar 2005 Location: Europe Posts: 1,014	Re: A short chaotic synthesis of my IDA-71 modifications What's about the hoses? Dolphin? Nad __________________ The Impossible is often the Untried
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