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The
Alpha Standard. The Alpha 8 Octo is the top-performing octopus in its class,
and as one of the most affordably priced regulators you can buy it is the standard
by which all other entry-level regulators are judged. For recreational divers
looking for professional performance at a reasonable price, the Alpha 8 makes
the adventure of diving that much easier to experience. Features include:
*
Orthodontic Mouthpiece
* Nitrox compatible
* Inexpensive to maintain
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Best
Price / Performance ratio in its class
Not only is the Alpha 8 octopus an economical buy for the diver on a budget,
it is just as inexpensive to maintain. Standard replacement parts can cost as
little as half of those in other regulators in its class.
Patented
orthodontic mouthpiece
To further reduce jaw fatigue, the Alpha 8 features a patented Orthodontic
Mouthpiece, designed to accommodate the natural overbite of the human jaw.
Nitrox
Compatibility
The Alpha 8 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.
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| FEATURES & FUNCTIONS |
ALPHA 8 SECOND STAGE |
| Valve Type |
DEMAND |
| Adjustment |
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| Balancing System |
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| Integrated Purge Button |
YES |
| Mouthpiece |
ORTHODONTIC |
| Nitrox Compatibility |
STANDARD TO 40% |
| Ambidextrous |
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| Integrated Swivel |
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| Weight (without hose) |
6 OUNCES |
| Dimensions (front profile) |
2.9 INCHES |
| First Stage Configurations |
PX-2/SP-4 |
| Minimum Cracking Effort |
1.1 CIW* |
| Factory Set Inhalation Effort |
1.2 - 1.4 CIW* |
| Work of Breathing |
1.23 JOULES (PX-3)
1.47 JOULES (SP-5) |
| 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
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