Scubapro-uwatec REGULATOR User Manual
USER INSTRUCTION GUIDE FOR
RECREATIONAL DIVING EQUIPMENT
(GROUPE - BREATHING - REGULATORS)
CONTENTS
1 Important regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-2
2 Terminology / Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-2
3 Technical safety regulations
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-3
4 Model descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-4
5 Technical descriptions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-5
6 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-20
7 Preparation for use
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-21
8 Use of the equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-22
9 Procedures after use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-23
10 Care and attention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-23
11 Maintenance
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-25
12 Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-25
13 Troubleshooting
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-25
14 Additional combinations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-26
15 Accessories
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-26
I - 1
ENGLISH
1. IMPORTANT REGULATIONS
WARNING: SCUBA complying with EN 250 are not intended for more than one
user to breath at the same time.
If the SCUBA are used by more than one diver at the same time, then the cold
water and breathing performance may not fulfil the requirements of EN 250.
For your protection while using SCUBAPRO
®
life support equipment, we call your
attention to the following:
a. Any use of the equipment is conditional to reading, understanding, and following
this user instruction guide.
b. Use of the equipment is limited to those applications described in this guide and
for purposes granted in writing from SCUBAPRO
®
.
c. The equipment must be serviced annually (e.g. examined, serviced, and if
required, repaired) by an authorized SCUBAPRO
®
repair technician. This
maintenance must be documented (we suggest our SCUBAPRO
®
Log/Service
Book). Only original SCUBAPRO
®
parts may be used for maintenance and repair.
d. If the equipment is improperly serviced, or repaired by persons not trained by
SCUBAPRO
®
, and in cases where the equipment is used for purposes not
specifically designated; liability for the correct and safe function of the equipment
transfers to the owner/user.
e. instructions and statements contained in this document are based on the latest
information available prior to printing. SCUBAPRO
®
reserves the right to make
changes at any time.
f. Local statutes and regulations must be followed when transporting this equipment.
2. TERMINOLOGY / APPLICATIONS
SCUBAPRO®recreational diving equipment includes: self-contained, open circuit
compressed air underwater breathing apparatus (i.e. SCUBA). SCUBA equipment
allows a diver to breathe underwater by carrying a portable supply of regulated
compressed air with him underwater.
The purpose of a breathing regulator system is to reduce the pressure of the
compressed air in the cylinder and supply breathable air to the diver upon demand.
The system also provides outlets for underwater pressure gauges and intermediate
pressure hoses for inflation of buoyancy control devices, dive suits, etc...
NOTE: FOR SIMPLICITY, PRESSURE REGULATORS AND DEMAND VALVES ARE
REFERRED TO AS “1st STAGE” AND “2nd STAGE” REGULATORS,
RESPECTIVELY, THROUGHOUT THE REST OF THIS DOCUMENT.
A breathing regulator system consists of: a first stage regulator coupled with one or
more second stage regulators which have depth limitations. Any individual diving
activitiy is limited by the experience and condition of the individual diver. SCUBA
should not be used deeper than 50 meters (130 ft).
EN250:2000 regulates the minimum requirements for recreational SCUBA equipment
in Europe. SCUBAPRO
®
equipment conforms to EN250:2000.
User Instructions for Breathing Regulators
I - 2
EN250:2000 requires that the minimum SCUBA unit consist of the following elements:
• Compressed air cylinder(s) conforming to national regulations of the
corresponding European Standard.
• Breathing regulator: consisting of a first and second stage regulator set.
• Face mask and mouthpiece, full face mask, or diving helmet.
•
Frame or holding device for air cylinder(s) with the possibility to mount the harness.
• Carrying system.
• Safety system, including at least one of the following:
a. submersible pressure gauge,
b. reserve valve,
c. active low pressure warning device.
• Instructions for use must be included.
3. TECHNICAL SAFETY REGULATIONS
The recommendations and advice of a recognized recreational diving instructional
agency should be followed on every dive. Before participating in any diving activity,
a thorough course of instruction in the theory and practices involved in diving
should be successfully completed.
This user instruction guide does not replace a complete course of diving instruction!
Prospective diving students should undergo and pass a diving medical
examination prior to commencing instruction. Active divers should be re-examined
as required by their physician.
Air cylinders should by filled with quality compressed air only (in accordance with
EN 12021). Poor quality air can cause corrosion to form in the cylinder as well as
lead to regulator system icing and malfunction in low temperature environments.
When transporting high pressure cylinder(s), national and local regulations for the
transportation of dangerous goods (GGVS) should be observed. Regulations for
using air cylinders is covered in the “use and handling of gasses” (TRG 402, para
4 and 5) and is described in other governmental regulations.
Cold water diving regulator:
SCUBA systems intended for use in temperatures below 10°C (50° F) must employ
regulator sets proven for cold water diving.
Required safety devices:
In addition to those requirements detailed in “2 Terminology / Applications” SCUBA
sets intended for use in certain exceptional operations conditions must meet
additional criteria.
• Whenever the amount of air remaining must be known (e.g. cave, cavern,
wreck, current, or ice diving) a submersible pressure gauge (spg) is required.
• Whenever the use of a spg is difficult or impossible (e.g. Iow visibility) a reserve
valve or active warning device is required.
I - 3
User Instructions for Breathing Regulators
ENGLISH
4. MODEL DESCRIPTIONS
a. 1st Stage MK25 a. 1st Stage MK2 Plus
b. din retaining shaft with knurled retaining wheel b. Retaining yoke and screw (Yoke
c. Low pressure swivel ports system)
d. High pressure port c. Protective cap
e. Inlet protector DIN / INT d. Inlet protector
f. 2nd Stage S600
g. Purge button
h. Bubble deflector
I. Protective hose sleeve
j. Low pressure hose
4.1 Authorized SCUBAPRO®regulator “set”.
(some combinations may not be available in all countries).
SCUBAPRO®2nd stage octopus are provided standard with:
• a yellow cover,
• a 100 cm low pressure hose, and
• an octopus holder.
User Instructions for Breathing Regulators
I - 4
e
b
a
c
f
g
j
h
i
d
fig. 1 : MK25 DIN / S600
fig. 2 : MK2 Plus INT
b
a
d
c
2nd Stages
MK2 Plus
XXXX XX
INT/DIN
MK17 A.F.
X XXXX XXXX XXX
INT/DIN
MK16
X XXXX
INT/DIN
MK18
X XXXXXXXX
INT/DIN
MK25 A.F.
X XXXXXXXXX XXX
INT/DIN
MK20
X
NITROX
MK25T
XXX XXXX X X X X
INT/DIN
MK25 SA
XXX XXXX X X X X
INT/DIN
MK11
XXXXX
INT/DIN
1st Stages
X650T X650 S600T
S600/
CLASSIC
S600 S550
G250
HP
D400
R290/
R380/
R390
R290/
R380/
R390
OCTOPUS
R190
R190
OCTOPUS
S555
R295/
R395
R295/
R395
OCTOPUS
I - 5
5. TECHNICAL DESCRIPTIONS
High quality material and engineering used in the manufacture of SCUBAPRO
®
regulators insure maximum reliability and safety. SCUBAPRO®has been building
high quality diving equipment for over 35 years. All SCUBAPRO
®
regulator systems
consist of two stages. The 2nd stage is a negative pressure activated, breathing
controlled demand regulator. The 1st stage, connected to the cylinder valve, is
intended to reduce the high pressure air supply (200-300 bar) down to an
intermediate pressure of 9.5 bar (135 psi) over ambient pressure. The regulated
pressure air is supplied to the 2nd stage via a low pressure hose.
5.1
A.F. and T.I.S. (ANTIFREEZE MK25’s and THERMO
INSULATING SYSTEM) (EU/USA patents)
The above two systems for first stages regulator have to be installed by a qualified
SCUBAPRO®service technician.
They have been designed to provide resistance to freezing in accordance with
European Norms (EN250:2000) for cold water performance at < 10°C (50°F) (ref.
section 5.11.3).
5.2 Thread or Yoke Connections
SCUBAPRO®first stage regulators are currently available with either of two
different cylinder valve connections :
• Threaded : this connector uses a knurled and threaded retaining wheel and
complies with ISO 12209-2 (200 or 300 bar).
• Yoke : this international connector consists of a yoke and knob type fixing screw
for use in systems up to 230 bar and complies with ISO 12209-1.
Cylinder connections can be exchanged by an authorized SCUBAPRO
®
repair
technician.
5.3 Conical sintered filter
The conical sintered filter has a 300% larger surface area than disc shaped filters.
The filter traps rust and other large particles before their entering into the 1st stage
regulator.
5.4 H.P. cave cone seat
Designed and patented by SCUBAPRO®, the cave cone seat in the balanced piston
first stages eliminates the annoying “whistling” common with other piston type 1st
stages. (EU patent Nr 0.310.738).
5.5 Down-stream system
“Down-stream” describes a valve that opens with air flow. With a down-stream
system, the delivery valve in the 2nd stage opens automatically (like a safety valve)
if the intermediate pressure supplied by the 1st stage increases above expected
User Instructions for Breathing Regulators
ENGLISH
pressures. This approach insures that air is supplied to the diver should the 1st stage
malfunctions and offers considerably lower inhalation resistance compared to an
“up-stream” configuration.
5.6 Intermediate pressure hose
In 1983 SCUBAPRO®developed an intermediate pressure “SuperFlow” hose that has
a 33% higher air flow capacity for the same external diameter. The SuperFlow hose
fits all SCUBAPRO®regulators, including those manufactured before 1983.
5.7 Mouthpiece
The orthodontic mouthpiece is designed to fit perfectly in the mouth and adapt to teeth
and gums achieving maximum comfort whilst securing the second stage firmly in place.
5.8 Full face mask
Any SCUBAPRO®2nd stage regulator, minus the mouthpiece, can be fitted to the
SCUBAPRO®full face mask (p/n 24.150.000) by an authorized SCUBAPRO®repair technician.
5.9 Registration
All SCUBAPRO®regulators are marked with a serial number (s/n). On the metal 2nd
stages, the s/n can be found on the rear surface above the bubble deflector. On most
plastic 2nd stage regulators, the s/n may be found on the rear face of the bubble
deflector or on the mouthpiece surface. The D400 has the s/n on the side of the body.
All 1st stage regulators display the s/n on the main body.
5.10 Silicone
The diaphragm and air exhaust valve are manufactured from fine, highly sensitive
silicone material. This extremely flexible material reduces the effort required for
breathing during both inhalation and exhalation.
5.11 Compatibility
Reverse compatibility; a company philosophy. New components are designed to be
compatible with older versions of similar models. Even an old MK5 1st stage can be
brought up to date with the latest components.
5.12 Worldwide Lifetime Guarantee
SCUBAPRO®offers the original owner of all new breathing regulators a lifetime guarantee
covering material and manufacturing defects for all components except mouthpieces and
intermediate pressure hoses. Documented annual service and inspection by an
authorized SCUBAPRO
®
repair technician is mandatory to maintain this Guarantee.
5.13 EN250:2000 Approval
All SCUBAPRO®regulators exceed the strict requirements required by the European
Standard EN250:2000. When fitted with a T.I.S./A.F. (antifreeze) kit, all SCUBAPRO
®
1st stage regulators conform to the requirements for cold water conditions.
User Instructions for Breathing Regulators
I - 6
5.14 V.l.V.A. (Venturi lnitiated Vacuum Assist)
Many SCUBAPRO®regulators are equipped with a diver-controlled V.I.V.A. Others have
an internal V.I.V.A. or one that can be adjusted by an authorized SCUBAPRO®technician.
V.l.V.A. (US Patent 4,796,618) allows the diver to finely control the inhaled air
stream. This is possible by situating a flow vane in the mouth piece orifice. The
angle of the vane controls the flow of air into the divers mouth. Adjusting the V.l.V.A.
control lever on the outside of the 2nd stage can maximize the venturi effect of the
breathing air stream. High speed air flowing over the vane produces a low pressure
area behind it, pulling the diaphragm in and depressing the valve actuating lever
and opening the inlet valve.
Adjusting the Venturi effect (fig. 3):
•
Turn the lever to the MIN/PREDIVE position when entering water, during buddy breathing,
or when using the 2nd stage as an alternative air source (Octopus)
or when descending head-first.
•
Turn the lever to the MAX/DIVE position to achieve maximum air flow, during dive.
5.15 1st Stage MK2 Plus (Standard Piston) T.I.S.
Simplicity, reliability, and minimum servicing effort are the halimarks of the MK2 1st
stage regulator. Being manufactured since 1963, it contains only one moving part:
the piston. The small size and low weight are the major advantages of the MK2, yet
it still offers four intermediate pressure ports and one high pressure port. It is T.I.S.
compatible for cold water diving.
Note: Designed for the maximum resistance to most conditions, a minimum of care
and maintenance is recommended (see point 10. CARE AND ATTENTION).
I - 7
User Instructions for Breathing Regulators
fig. 3
ENGLISH
5.16 1st Stage MK25T (Titanium) (Balanced) A.F./T.I.S.
As for many other diving products, SCUBAPRO®had always been at the forefront of
technology and materials. It was the first ever, for example, to introduce a first stage
regulator fully made out of titanium as far back as 1988. This new model is thus the
evolution of this brought to perfection, in which new technologies and ideas have been
applied to the already legendary MK20 (now MK25).
Titanium is a very unique material, which weighs half as much as brass (typical material
used for first stage manufacturing) yet has superior mechanical and electrochemical
properties. The latter allow the preformance and cosmetic appearance of the product to
remain unchanged over time. In addition to the already exceptional performance
characteristics of the base project, these are the new model features:
- T.l.S. (Thermal Insulating System) (EU/USA patent)
It consists of a soft and rigid sleeve combination around the 1st stage stainless steel
piston to insulate the very cold through air flow from the water around, to prevent ice
formation around the spring which is coated (fig. 4). The ice-breakers on the rigid
bushing interrupt the ice formation, which tends to break off upon forming (patents no.
EU 0.811.549 – no. USA 5.775.368)
T.I.S. 2 version: a second soft sleeve has been added over the 1st one, to further
improve the thermal insulation of the piston.
- Composite Piston (C.P.) (Pat. pend.)
(low pressure side made of technopolymer with double o-ring, HP shaft of stainless
steel)(fig. 4). This solution improves the above T.I.S. function, to insulate air flow
passing from the water around, especially where the air expands at most (inside the
low pressure piston head) : the combination of the two solutions (C.P. and T.I.S.)
allows to get the highest flow rate of any first stage (almost 10.000 l/min) with an
extreme cold water resistance, thanks also to the new antifreeze cap (see below).
- Antifreeze Cap (A.F.) (pat. pending)
Its external ribs (fig. 5) almost make double the external thermal exchange surface in
contact with water, still further delaying the ice formation, even below the EN 250:2000
cold test limit (2°C).
- Rapid Intermediate Pressure Adjustment (pat.) (to be performed by Authorized
Scubapro Technicians only) : the intermediate pressure can now be adjusted
externally, and needn’t disassemble the first stage. An adjustment screw made out of
stainless steel (to avoid gripping between titanium parts) moves the high pressure
seat axially. Rotation is hampered by an antifriction spacer.
Given the superior mechanical resistance and imperviousness to all chemical and
electrochemical agents of the materials employed, maintenance is reduced to a
minimum and limited to only the sealing elements (o-rings, gaskets, seats, etc.)(refer
to section 10, Care and Maintenance).
User Instructions for Breathing Regulators
I - 8
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