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In the following cases:
• Damage to some parts of the mask
• Difficult to breathe
• Dizziness and/or light-headedness
The dive must be aborted.
All dives must be planned and carried out so that at the end of the dive the diver will still have
a reasonable reserve of air for emergency use. The suggested amount is usually 50 bar (725 psi).
All users of the Neptune III Package must periodically undergo training in Emergency Procedures
in shallow water to maintain preparedness in the event of an actual emergency.
OCEAN REEF refuses all responsibility for damages caused by non-compliance with the
instructions contained in this manual. These instructions do not extend the warranty or the
responsibilities stated by OCEAN REEF terms of sales and delivery.
Before using the NEPTUNE III Package, the user must ensure that every component has been
properly inspected and maintained. (see Chapter 12 Maintenance).
Do not modify or alter in any way the Package consisting of the Neptune III mask + first stage +
octopus + pressure gauge + hoses.
In order to maintain the warranty, factory prescribed service for the products must be performed
at least once annually by a factory trained OCEAN REEF Service Technician who is employed by
an Authorized OCEAN REEF Dealer and whom keeps proper maintenance records. Repair, service,
disassembly, or first stage adjustment must not be attempted by persons who are not factory
trained and authorized by OCEAN REEF.
For details, contact an authorized OCEAN REEF dealer at:
https://diving.oceanreefgroup.com/
shop-dealers/
It is known that in certain conditions, when the Neptune III is donned and connected to the
cylinders, during exhalation only, the membrane of the 2
stage, residing in the exhalation air
nd
deflector may vibrate, producing a humming sound.
This is normal and should not alarm you.
For extra caution and safety, If this does not describe properly your experience you should
not dive and contact Customer Service.
Given the very high sensitivity of the 2
stage and the high amount of airflow, you may, in
nd
certain conditions, experience a slight vibration during inhalation as you descend in the first
very few feet/meters of water.
This is absolutely normal and should not alarm you.
For extra caution and safety, If this does not describe properly your experience you should
not dive and contact Customer Service.
NEPTUNE III Package Owner's Manual rel. 2.1
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