|
|
Valve Type |
DEMAND |
Adjustment(s) |
KNOB/PRE-DIVE SWITCH |
Balancing System |
PNEUMATIC |
Integrated Purge Button |
YES |
Mouthpiece |
ORTHODONTIC W/ TABS |
Nitrox Compatibility |
STANDARD TO 40% |
Ambidextrous |
|
Integrated Swivel |
YES |
Weight (without hose) |
6.7 OUNCES |
Dimensions (front profile) |
2.66 INCHES |
First Stage Configurations |
FDX-10 |
Minimum Cracking Effort |
DIVER ADJUSTABLE |
Factory Set Inhalation Effort |
0.0 - 2.5 CIW* |
Work of Breathing
|
.80 JOULES |
Warranty |
2 YEAR |
Limited Lifetime Service Agreement |
YES |
30-Day Satisfaction Guarantee |
YES |
| FEATURES & FUNCTIONS |
FDX-10 |
Valve Type |
BALANCED DIAPHRAGM |
Primary Material |
FORGED MARINE BRASS |
Low Pressure Ports |
4 |
High Pressure Ports |
2 |
| Dry Valve Technology (DVT) |
YES |
Integrated Swivel |
|
Nitrox Compatibility |
STANDARD TO 40% |
300 BAR DIN Fitting |
OPTIONAL |
Sealed Valve Design |
YES |
Environmental Protection |
YES |
Weight |
28 OUNCES |
Factory Set Intermediate Pressure |
138-142 PSI |
Pressure Drop |
9 PSI |
Warranty |
2 YEAR |
Limited Lifetime Service Agreement |
YES |
30-Day Satisfaction Guarantee |
YES |
WORK OF BREATHING
Did you know that it costs energy to breathe? The
amount of energy your regulator requires to move each liter of air is
called work of breathing (WOB). Lower work of breathing equals lower
effort required to breathe and increased comfort and safety during a
dive.
How to Read Work of Breathing Charts
The computer-generated breathing machine chart presented above
represents a regulator's performance per standards established by the
U.S. Navy's Experimental Diving Unit. Tests are conducted at 198 feet
with approximately 3000-psi supply pressure, 25 breaths per minute of
2.5 liters each.
(1) Inhalation - The chart shows
one complete breath cycle, starting with inhalation on the left and
continuing along the bottom to the right, staying mostly below 0.0;
thus the inhalation work of breathing is reported in negative numbers.
(2) Exhalation - The exhalation
effort begins on the right and runs across the top to the left. These
are all positive numbers since a diver (or the machine in this case) is
blowing out (exhaling) rather than inhaling.
(3) WOB - The total area inside
the loop formed by the two lines is what the computer analyzes to
calculate the regulator's total work of breathing - the amount of
energy the regulator requires to move each liter of air.
*Column Inches of Water
Pneumatically Balanced Valve.
The pneumatically balanced second stage reduces breathing resistance to
near zero with a balanced valve seat designed to respond to the
slightest inhalation.
A
pneumatically balanced second stage actually has (or can have) the same
initial crack opening effort as a mechanically balanced, but the spring
force of a pneumatically balanced second stage is lighter so it’s
spring rate is also lower. Therefore the force required to open the
valve farther as flow increases is less than that required for a
mechanically balanced second stage with a higher rate spring. So the
total effort to breathe the pneumatically balanced second stage is
indeed less.
The
spring force must be just enough to overcome the difference between
downstream air pressure and upstream balance chamber pressure.
The
downstream air travels through a hole in the poppet into the balance
chamber and applies an "upstream" force just slightly less than the
downstream force.
Diver Adjustable Inhalation Effort.
Most downstream demand valve regulators are calibrated during
manufacturing to a single, 'middle of the road' operation. Whether
finning up current at 100+ feet or merely snorkeling out to the dive
site, this factory adjustment may not be optimum for the wide variety
of demands we place on our equipment. A simple twist of the adjustment
knob enables complete control... Set the inhalation requirement to near
zero when you need ultimate performance, or tune it for greater
resistance as conditions or preferences change.
Patented Dynamic Adjustment.
A common objection to adjustable second stages is that divers can't
imagine themselves twisting and turning a knob as they descend and
ascend through the depths. If inhalation resistance is set near zero at
depth, your ascent would require you to manually increase resistance as
ambient water pressure is reduced to prevent free-flow. Taking another
stride beyond common second stage engineering, Oceanic designed a
patented DYNAMIC ADJUSTMENT feature into the heart of the EOS. This
mechanically balanced valve maintains your preferred breathing
resistance throughout the dive. Set it once and the EOS automatically
adjusts to make breathing as easy at 100 feet as it is at 30 feet -
with no additional manual adjustment.
Ergonomic A.V.S. (Adjustable Venturi System) Dive/Pre-Dive Switch.
Designed to be unobtrusive, yet easily manipulated even with the
thickest gloves, the A.V.S. deflector vane found in the EOS either
diverts airflow from the valve to the mouthpiece, producing effortless
venturi-assisted inhalation or creates enough resistance to prevent
free flow on the surface.
Stainless Steel Inline Swivel.
Ever
notice that nearly every picture you see of a diver, their regulator
looks like it’s not the least bit comfortable? The EOS features an
ergonomically designed stainless steel (no plating) in-line swivel for
ultimate comfort.
Computer Optimized Design.
The EOS was designed using the latest 3-D computer modeling techniques.
This allows us the ability to model and test performance while still in
the early stages of development. The EOS’s unique valve, deflector vane
and housing design directs airflow from the valve directly to the
mouthpiece, producing nearly effortless venturi-assisted inhalation.
Patented Orthodontic Mouthpiece with High-Density Bite Tabs.
To further reduce jaw fatigue, the EOS features a patented Orthodontic
Mouthpiece, designed to accommodate the natural overbite of the human
jaw.
Nitrox Compatible.
The EOS | FDX-10 is classified as being suitable for use with Nitrox
breathing gas mixtures containing up to 40% oxygen by volume without
the need for special preparation, cleaning or component parts.
FDX-10 Over-Balanced Diaphragm First Stage.
The Forged from marine-grade brass, the FDX-10 features optimized air
paths and angled hose ports for superior performance and comfort. A
sealed Balanced Diaphragm design, Enviro Kit and patented DVT (Dry
Valve Technology) isolate all internal components from the environment.
2 high pressure and 4 low pressure ports allow convenient and
comfortable hose routing.
The
FDX-10 high performance over-balanced first stage provides
progressively greater intermediate pressure as depth and gas density
increases. The center “pads” that the diaphragms act against are
different sizes so the working area of the outer environmental
diaphragm is larger than the working area of the inner diaphragm. As
depth increases, more pressure is applied to the larger surface area of
the outer diaphragm than would be applied to the internal diaphragm.
The result is superior gas delivery under the most extreme conditions.
DVT (Dry Valve Technology)
Ever wonder why they call it a "dust cap" and not a water cap? Most
dust caps are not designed to keep water from entering your first
stage. Regardless of how carefully you may maintain your regulator,
water entry is a much more common problem than most divers realize.
DVT is a revolutionary regulator technology designed to automatically
eliminate moisture and contaminants from entering your first stage,
even if the dust cap is accidentally left off. DVT eliminates corrosion
of critical internal components, bacteria, hose deterioration, and
damaged gauges and computers.