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
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.
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.
Wireless Air Integration
Our Sophisticated Personal Dive Computers feature Wireless Air Integration technology.
A transmitter threaded into the first stage high-pressure port continuously sends cylinder pressure data to the dive computer. Frequencies are individually coded to allow multiple divers to swim side by side without interference with other units. Because the transmitter and display module are independent and separately powered units, the dive computer may also be easily used as a stand alone, non-air integrated dive computer.
Download and Settings Upload Interface
The PC Interface is an exquisitely detailed digital dive log. It allows you to easily transfer dive data from your Dive Computer to your PC via a plug-in USB cable.
Following download, your dive data is automatically formatted for easy viewing, sorting, analysis, and printing. Enter location, dive buddy and your notes and you’ve instantly created your own digital logbook. In addition to detailed dive analysis, the dive computer PC Interface also allows you to quickly and easily set most of your user settings and options through your PC.
Automatic Altitude Compensation
Selected Personal Dive Computers automatically compensate for altitude dives up to 14,000 feet, giving adjusted no-decompression times and depths.
Our Dive Computers even automatically recalibrates the depth displays for freshwater instead of seawater above 2,000 feet.