Owner's Guide
To remove the DIN to USA Converter:
•While holding the DIN connector wheel firmly, turn the DIN to USA Con- verter counter clockwise off the threads of the first stage DIN connector. DO NOT use tools to remove.
•Place the protector cap on the threads of the regulator DIN connector wheel.
ENVIRONMENTAL PROTECTION KIT
By function of design, the inner components of Oceanic diaphragm type regulator first stages (i.e., CDx, DX4) are isolated from the ambient environment. However, the outer side of the diaphragm and the diaphragm spring, located inside the cavity at the hex opening end, will be subjected to environmental con- ditions.
Oceanic recommends installation of an Environmental Kit on diaphragm type First Stages (i.e., CDx) subjected to environmental conditions in which debris, or sediment, or ice, or salt crystals might form in the spring cavity. The kit is a unique dry seal system that uses no messy grease or chemicals.
Most DX4 first stages are shipped from the factory with the Environmental Kit in- stalled. If your DX4 (or other model) is not configured with an Environmental Kit, one can easily be installed by your Authorized Oceanic Dealer.
WARNING: Installation of an Environmental Kit must be performed by an Authorized Oceanic Dealer. Improper installation may cause first stage failure while underwater resulting in serious injury or death.
REGULATOR SECOND STAGES
WARNING: Even if your First Stage is properly prepared for use in harsh environmental conditions, only proper training will protect your Second Stage from the effects of the environment.
FEATURES AND OPERATION
The Second Stage of the regulator assembly receives breathing gas at an intermediate pressure of approximately 140 psi from the first stage and delivers it to you at ambient pressure during inhalation. When you stop inhaling, it then shuts off the flow of breathing gas and provides a path for exhaled gas.
All Second Stage regulators have a level of sensitivity that can result in excess breathing gas being expelled when the Second Stage is not in your mouth while in the water. When this occurs, it is usually during entry or when on the surface.
This condition, refered to as
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