Rebreather BCD User Manual
Rebreather BCD User Manual Chapter 1
Page 1
The Rebreather BCD
The rebreather BCD is the rst of its kind and features include integrated exchangeable lungs,
weight system and the Poseidon individual patch system. The rebreather BCD is constructed to
the highest quality and durability using ballistic nylon*, YKK zippers and hand crafted detailing.
Material
Premium black version in Nylon 1680. 3 color versions in red, blue and grey made in Cordura
1000. YKK Waterproof Zippers. Inator with stainless steel mechanism.
Technical features
Integrated Counter Lungs, Integrated weightpockets, case for crotch strap,
velcro for patches or gauntlet.
Approvals/Certications
The BCD are approved according to the EU Directive for Personal Protective Equipment,
89/686/EEC and meets or exceed the requirements of: EN 1809:1997.
Type examination certicate number
6403 A/09/16 PSA (Revision 1)
Issued by;
DEKRA EXAM GmbH
Persönliche Schutzausrüstungen, Gasmessgeräte
Adlerstraße 29 * 45307 Essen
Germany
Notied body number 0158.
Poseidon Diving Systems AB is certied according to ISO 9001
Text, photographs and gures copyright © 2008-2012 by Poseidon Diving Systems AB.
ALL RIGHTS RESERVED. Manual Version 1.0 - February 2012.
Rebreather BCD User Manual Chapter 1
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WARNING:
Read user’s manual before use.
This is not a lifejacket: it does not guarantee a head up position of the
wearer at the surface.
Safe use of this product requires instruction in buoyancy control from a
certied instructor.
Inspect all components of this product for proper operation,
damage, wear or leakage before each use.
Do not inhale gases from inside bladder.
Rinse with fresh water thoroughly and drain after use.
Store partially inated.
The information tag attached to the BCD (under the zipper next to the
symbol) contains the above information and shall not be removed from
the bladder.
Diving is a strenuous physical activity. Its difculty may be increased by
conditions such as cold water, poor visibility, hard work, and increased
depth. Always try to exercise prudent judgement when determining
whether or not to dive. Never dive when tired or in poor health.
Check that weights can be dropped off freely. If BCD integrated weights
are not used, make absolutely sure the weight belt is not entangled when
put on. If it is entangled it can be prevented from dropping off freely, and
your emergency ascent can be jeopardised.
WARNING:
You must be familiar with the procedure to drop weights in case of an
emergency ascent.
Practice this procedure prior to your rst use of your BCD in a perfectly
safe environment, i.e. in conned water which is not deeper than 3
meters.
Modications of the product beyond what is described in this manual
are prohibited.
Modications can impair the function of the BCD, and transfers the
responsibility to the person who does the modication.
Maximum load on any stainless steel D-rings is 1500 N, please refer to
technical data/Manufacturers approval.
Before use of the BCD in any conguration, you must have proper dive
training and hold a certicate for diving from a recognised training organisation. As part of this training, you must have learnt how to establish
neutral buoyancy, how to adjust the amount of ballast weights, safe
descent and ascent techniques, inating and deating a BCD, donning
and dofng both above and under the surface. With your new BCD you
must practice these procedures again, and adjust the amount of ballast
weights you may be used to.
Retain this manual for your reference. Review this manual periodically,
and prior to diving.
Improper use, or misuse, of this harness or buoyancy compensator
could result in serious injury or even death.
Diving deeper than 50m the requirement of EN 1809 for time to completely inate bladder will be exceeded.
Rebreather BCD User Manual Chapter 1
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Functional Overview
Integrated Counter Lung
MDV
Manual Deation Valve. A manually operated valve which
permits deation of the BCD. This includes the APRV:s,
the shoulder valve of the inator when applicable, and
the oral ination/deation button on the inator.
The corresponding term in EN 1809:1997 is MDD
(Manual Deation Device).
Adjustment Waist belt
Weight Pockets
Welcro patch
Storage Pockets
Zip for inner lung
D-ring
Pocket for crotch strap
Counterlung
Over Pressurization Valv (OPV)
Integrated Counter Lung
Adjustment Straps
Adjustment Straps
Weight Pockets
Storage Pockets
Left T-connection port
Right T-connection port
APRV
Automatic Pressure Relief Valve. A valve which automatically prevents
overpressurisation possibly harmful to the BCD. Often referred to as OPV
(Over Pressure Valve) or dump-valve. The corresponding term in
EN 1809:1997 is APRD (Automatic Pressure Relief Device).
Manual ination valve
Chest Strap
Information label
(on the rear side of the back padding)
Rebreather BCD User Manual Chapter 1
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Assembly
For Rebreather assembly, see separate manual.
QMR Adapter.
Attach the cansiter housing to your BCD
with the QMR Adapter.
T-connections.
Connect the T-connection to the port
in each Integrated Counter Lung,
(see chapter 1, T-section assembly
in the main manual).
Low Pressure hose.
Connect the Low Pressure hose to
a IP port on the diluent 1st stage.
Rear CC loop hoses.
Attach the rear breathing hoses to
the left and right counterlung ports.
Front CC hoses to
counter lung T-section.
Connect the left and right front
CC loop hose to the counter lung
T-connection.
APRV, most efcient water
drainage position.
APRV
Rebreather BCD User Manual Chapter 1
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Pre Dive Checks
WARNING:
Do not dive with a BCD that is damaged, leaks air, or does not
function properly. Before each use inspect for proper operation,
leakage, or damage. Terminate any dive as safely and quickly as
possible if the BCD becomes damaged, leaks air, or does not
function properly.
Always perform a pre-dive and post-dive inspection of the BCD.
Have your dive partner perform a crosscheck as well. The predive
and post-dive BCD examinations help identify equipment
problems before unsafe conditions exists.
Ensure you are using a regulator set at min/max working
IP = 8 – 9.5 bar.
Make absolutely sure your weight system is not entangled, and
can be dropped off freely.
Check that your BCD is free from visible damages, such as e.g. cuts, punctures, frayed seams,
excessive abrasion, and loose/missing hardware.
Open your cylinder valve.
Check the correct operation of the inator mechanism by pressing the ination button to inate the
bladder, check for leakages, and then shortly press the deation button.
Check the manual deation device mechanism by pulling the inator corrugated hose. (does not
apply to models with elbow connection to the bladder).
Check that you can reach both APRV:s on the right and left side respectively. Pull the knob and
make sure the correct operation of the APRV.
Check that you can reach the handles of your QR weight system to release your own weights.
If a crotch strap is used, check that it is locked and that is does not prevent the release of weights.
Inate the bladder sufciently to keep you oating directly after entering the water.
Donning
Connect the quick connector of the inator feed hose to the inator mechanism.
Undo waist belt buckle and crotch strap buckle.
Put the BCD on starting with side where you have no instruments on your wrist, or APRV:s on
your drysuit. Lean slightly forward and put the other arm into the BCD. Then tighten the waist
belt, until you feel that you comfortably can carry the load.
Finally, adjust the shoulder straps and buckle the waist belt, crotch strap and chest strap.
Ensure you have adjusted the BCD size to t perfectly.
Put your weights into your weight pockets and lock the buckles.
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Diving
WARNING:
Do not use your BCD as an assist or “lift bag” for bringing
objects to the surface. These objects may be lost during the
ascent, creating a sudden increase in buoyancy and loss of
buoyancy control.
Do not inhale gases from inside bladder.
Keep sand and other contaminations out of the oral ination
mouthpiece and valve button. Under certain conditions
contamination can cause the valve to not close completely.
If this occurs while diving, shake the valve while operating
it several times. If the valve leaks or remains inoperable
immediately terminate the dive. Diving with a leaking BCD or
with valves that do not operate properly may result in loss of
buoyancy control that could result in serious injury or even death.
Be aware that the mesh at the bottom of the wing needed for
effective draining of water, do expose an increased risk for
bladder puncture. Make sure to protect this from coming in
contact with sharp objects.
Buoyancy compensating is achieved by inating and deating the BCD bladder.
Inating the BCD using the power inator is done by depressing the inator button using short
bursts. Continuous depressing of the button can cause you to become excessively buoyant.
Orally inating of the bladder is achieved by exhaling a small amount of air into the inator.
Place your lips on the inator mouthpiece and exhale while depressing the oral ination button.
After exhaling release the oral ination button to prevent air from escaping.
Deating the BCD is done by using either the inator’s oral ination button or any of the APRV:s.
For deation using the inator oral ination button, hold the inator in an upright position so that it
becomes the highest point of the BCD and depress the oral ination button.
Deation of the BCD using an APRV is done by activating the valve that is placed on the highest portion of the BCD depending on the diver’s attitude during the actual period of time. The
two APRV:s placed on the rear lower portion of the BCD are activated by pulling the knob.
For activating the inator integrated MDV pull the inator as if to extend the corrugated hose.
WARNING:
Avoid attempting to deate an already empty bladder as this will
allow seawater to enter. A ooded BCD can cause buoyancy
difculties.
In case of inator malfunction or freezing, the inator might continuously inate the bladder.
Start by detaching the inator hose and continuously deate the bladder by depressing the oral
ination button while holding the inator at the highest possible position to increase deation effectiveness.
After Dive
After nishing your dive start with undoing your weight pockets.
Let water out from your BCD that may have entered the bladder during your dive.
It is important to open up the breathing loop to allow the hoses and other components to dry
overnight. This is, by far, the best procedure for keeping theinside of the breathing loop clean.
All four breathing hoses should be removed from their attachment points (mouthpiece, shoulderports, and main housing), and placed such that water inside will drain out, and somewhere with
relatively dry, well-circulated air.
It is good practice to rinse, disinfect, and dry the counterlungs after a dive. Any disinfectant solution that doesn’t have a negative effect on plastics and/or rubber can be used for this purpose.
Poseidon recommends using a disinfectant called Gigasept™ or Virkon.
Inate the BCD, either orally or by using the inator. With the BCD almost fully inated, rotate it
back and forth a few times so that the entrapped water collects inside.
Then let the water out through the inator, by holding the BCD up side down, with the inator
at the lowest point and depressing the oral ination button. Rinse your BCD in fresh water both
internally and externally after every dive. After seawater have been emptied as described above,
ll approximately 1-2 litres of fresh water into the BCD via the inator. Partly inated, rinse the BCD
internally and then let the water out as described above.
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Maintenance
No other maintenance procedures that you can do yourself other than those described in section After Dive is needed. If your Besea is heavily contaminated and dirty, or after your last dive
for the season, it is possible to wash the BCD in a washing machine. Valves and inside PU bladder shall NOT be washed in a washing machine. Unscrew all APRV:s and the inator from the
bladder. Unzip the bladder and remove the inside PU bladder.
Tumble drying is prohibited.
Always let your BCD dry completely before storage over a longer period of time.
Water drainage; The most efcient way to drain water from the BC bladder is to use the top right
shoulder port (refer to a pic).
Always store the BCD partially inated.
Store in a place which is not exposed to extreme temperatures or direct sunlight.
Do not rest heavy objects on the BCD.
Expected lifetime for inside PU bladder is 10 years, but can vary depending on usage.
Poseidon recommends replacing the bladder after maximum 10 years from the date of manufacture, or earlier depending on condition and usage.
Avoid prolonged or repeated exposure to chlorinated water, such as in swimming pools.
Wash your BCD immediately after any use in chlorinated water. Chlorinated water can oxidize
fabrics and materials on your BCD, shortening its life, and cause colours to fade. Damage and
fading from prolonged exposure to chlorinated water is specically not covered under warranty.
Technical Data
Maximum buoyancy
Size Buoyancy
XS
S
M
L
XL
80 N
90 N
100 N
110 N
140 N
All buoyancy gures reached within 5-8 seconds.
Servicing
It is extremely important for your safety that you keep your equipment in good condition.
You need not carry out any other maintenance than described in previous section.
The BCD should be inspected yearly by one of POSEIDON´s authorised service locations.
Look for the POSEIDON Authorised Dealer sign. Inspection does not include a service overhaul,
which only takes place if damages or malfunctions are discovered when inspected.
If you are using BCD with gasses having elevated oxygen content (Nitrox), you must inform the
servicing location about it.
They will then always undertake a re-cleaning of the inator and your inator feed hose.
Temperatures
Working surface temp. Working water temp.
- 20ºC to + 50ºC
- 4ºF to + 122ºF
- 3ºC to + 40ºC
+ 27ºF to + 104ºF
WARNING:
This BCD is only intended for use with the Poseidon MkVI
rebreather with 2x3 liter cylinders.
This is not a lifejacket: It does not guarantee a head up position
of the wearer at the surface.
Refer to the information label placed on the rear side of the back padding for further information.
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