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:: 10 XSTREAM

USER MANUAL :: 

ENGLISH

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figures (hypercapnia) minimal. Inhalation resistance is in-

credibly low and unaffected by depth and breathing pattern 

Because of the unique Poseidon valve technology, there is 

no need for external adjustments. 

Xstream is fitted with the new ergonomic mouthpiece Posei-

don AIR, with asymmetrical lugs for the most comfortable 

bite. 

All  diaphragms  are  protected  so  that  a  strong  current  or 

using  a  scooter  or  tug  does  not  affect  either  inhalation  or 

exhalation. 

A  minimal  number  of  moving  parts,  coupled  with 

thermodynamic  engineering,  ensures  the  safe  use  in  an 

extremely cold environment.

XSTREAM 1:ST STAGE

The  first  stage  is  a  balanced  rolling  diaphragm  ball  valve 

producing extreme leaktightness.

Conventional  designs  are  sensitive  to  wear,  misalignment, 

and manufacturing precision. A ball always finds its correct 

place.

Combined with the 2nd stage, the enormous capacity of the 

1st  stage  make  the  regulator  meet  the  EN  250  breathing 

performance  requirements  even  at  as  low  as  16  bar  (232 

psi) cylinder pressure. This means that you gain an extra 34 

bar (493 psi) of gas compared to most other regulators!

The  Xstream  construction  requires  less  o-rings  than  any 

other  regulator.  Except  for  sealing  the  blind  screws  (3-4), 

there  is  just  1  sealing  o-ring  (semi-static)  in  the  bottom-

mounted versions and 2 in the side mounted.

The hose routing is developed to be optimised for a redun-

dant system, using two regulators. The HP ports are positio-

ned to accommodate the use of gas monitoring computers 

e.g. first stage mounted HP sender/receive units.

Patented

Xstream 180° Model

Xstream 90° Model

Xstream 2nd stage

Summary of Contents for XSTREAM

Page 1: ...USER MANUAL ENGLISH XSTREAM...

Page 2: ...0 s The same ideas motivate us now The name Poseidon represents constant development and improvement of diving equipment where everything is positioned correctly and everything functions even in the m...

Page 3: ...Type approvement certificate no 020341 020342 and 020343 is issued by SGS United Kingdom Ltd Unit 202b Worle Parkway Weston super mare BS22 6WA United Kingdom Notified body number 0120 Production qua...

Page 4: ...ng greater than 21 oxy gen up to 50 Enriched Air Nitrox IP Interstage pressure the pressure existing between the 1st stage and the 2nd stage valve HP High pressure the pressure inside the SCUBA cylind...

Page 5: ...oxy gen content than 99 95 by volume Xstream Deep models only for use with air or Trimix with a maximum oxygen content of 21 and a maximum Helium content of 77 Xstream Dive and octopus only for use wi...

Page 6: ...r than 18 m 59 ft or in overhead environment requires special train ing regarding practices equipment physical and medical understanding This manual assumes the reader has some basic knowledge in thos...

Page 7: ...must be used exclusively with Nitrox or Oxygen and should be kept O2 clean at all times If a Oxygen Deco or Duration regulator is contaminated or used with a contaminated fill then the regulator must...

Page 8: ...medical effects or even death if used incorrectly Use recognised tables for oxygen exposure Xstream Oxygen EN 144 3 Deco Deco EN 144 3 is approved for oxygen service directly from the box i e it is cl...

Page 9: ...if it gets lost during the operation the regulator will continue to function but must only be used for immediate ascent In case of a malfunction in the 1st stage causing excessive intermediate pressur...

Page 10: ...extreme leaktightness Conventional designs are sensitive to wear misalignment and manufacturing precision A ball always finds its correct place Combined with the 2nd stage the enormous capacity of the...

Page 11: ...r of 0 C 32 F for at least 10 minutes and after wards still be completely unaffected DEEP DEEP90 1 ST STAGE TRIMIX AIR All materials in Xstream Deep are chosen and tested to be optimised for Helium an...

Page 12: ...d NVR levels less than ASTM G63 Level C 50 mg m2 hydrocarbons The Xstream Oxy90 1st stage is only used on the Mk VI Discovery Rebreather The Xstream Deco was discontinued in 2005 DURATION DURATION EN...

Page 13: ...e gas by as much as 12 C 22 F under certain conditions Using a long hose requires some basic knowledge in its use and routing to take the full advantages Poseidon does not recommend the use of hose pr...

Page 14: ...nnection areas with your fingers since fingerprints are a combustible con tamination OXYGEN ALERT PRE DIVE The procedure described below only describes the manner in which the regulator is assembled a...

Page 15: ...n the knob back half turn When the 2nd stage is pressurised and the servo mechanism engages a maximum of 3 litres of gas vents from the 2nd stage Slow opening of the cylinder valve is the best way to...

Page 16: ...ck for the regulator being used The mouth region can become numb from cold and you risk loosing the regulator DIVING What is most distinctive about the Xstream is that it is easy to use there aren t a...

Page 17: ...that the pro tective cap is free from water and debris then mount the protective cap onto the connection The regulator should not be stored in direct sunlight and or at high temperatures Make sure it...

Page 18: ...stream neck strap surgical cord Poseidon Jetstream 2nd stage and hose EN 250 Poseidon Jetstream 1st stage EN 250 All CE marked or EN 250 designated cylinder valves Yoke clamp All CE marked approved pr...

Page 19: ...t gas mix Always follow established calculation methods and mixing procedures for mixing a breathable gas These are not des cribed herein WARNING WARNING Approved gas mixes for Xstream Deep If air is...

Page 20: ...4351 psi Cold water perfor mance Exceeding EN 250 requirements for cold water use Approvals Type Approved acc to EU Direc tive Personal Protective Equipment 89 686 EEC Applicable Performan ce Standard...

Page 21: ...gical cord Silicone Dismountable w o tools Yes Anatomic Mouthpiece Poseidon AIR 1st stage Flowrate l min 4000 l min 141 scfm Nominal inter stage pres 8 5 bar 123 psi Anti Freeze protec tion Built in T...

Page 22: ...22 XSTREAM USER MANUAL ENGLISH M I S C E L L A N E O U S EXPLODED VIEWS With over pressure valve built in to the 1st stage No over pressure valve built in to the 1st stage...

Page 23: ...of the cylinder capa city The diagram above show a calculated graph for Work of Breathing in Joules litre at Qaverage 62 5 litres min The equation behind it is extracted from hundreds of tests from wh...

Page 24: ...regula tor free flows breaking the surface Check the cracking pressure see sec tion 6 2 If the crack ing pressure is too low it i n c r e a s e s the risk for free flow Have the re gulator cor rectly...

Page 25: ...room environment made up by materials chosen to expose lowest possible risk x failure effect product and are tested and approved for oxygen use It is strictly prohibited to use the Poseidon Xstream O...

Page 26: ...ised service loca tions Look for the POSEIDON Authorised Service Center sign SERVICE CENTER AUTHORIZED Because of the robustness and simplicity of the Xstream construction the amount of servicing is k...

Page 27: ...uct are prohibited Modifications can impair the function of the regulator and transfers the responsibility to the person who does the mo dification Adding decals and other outer means for oxygen Nitro...

Page 28: ......

Page 29: ...421 08 V stra Fr lunda SWEDEN t 46 0 31 7342900 f 46 0 31 7342901 www poseidon se Art no 4695 ISSUE 040924 3 WE INTEND TO CONTINUE TO PRODUCE DIVING EQUIPMENT AS LONG AS A SINGLE DROPOFWATERREMAINSINT...

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