Ocean Reef Neptune Space G-divers Owner's Manual

NEPTUNE SPACE G.divers FULL FACE MASK

OWNER’S MANUAL

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For nearly 60 years, OCEAN REEF has been involved in the underwater diving industry.
We have contrib uted much to this indus try, from fins and sn orkels to the most mo dern
systems of under water communication. Through the spirit of intrepid pioneers, brilliant
inventors, pas sionate divers, and dynamic e ntrepreneurs, O CEAN REEF has bee n able to
turn dreams int o reality in the underwater world.

OCEAN REEF USA OCEAN REEF ITALY

In order to limit our paper consumption, and as a part of our environmental friendly and
responsible approach, OCEAN REEF prefers to put user documentation online rather than

print them out.

Please refer to the following areas of our web site:
Manuals: http://www.gdivers.com/manuals.html
We also provide online video tutorials showing you how to set up your mask and com unit
Video: http://www.gdivers.com/videos.html

© OCEAN REEF 2010

NEPTUNE SPACE G.divers manual rel.1.7 October 2010

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NEPTUNE SPACE G.divers OWNER’S MANUAL

TABLE OF CONTENTS

Premise and warnings 4
Introduction 5
General precautions and warnings 5
What’s the correct mask size? 7
Use of conventional regula tors 8
1st stage SL 35TX 8
Equalization 9
Quick steps 10
Purging 12
Serial number 12
Maintenance and cleaning 13
Storage 13
Communication 14
Troubleshooting 15
Schematic and parts list (Neptune Space G.divers) 16
Schematic and parts list (SL 35TX) 18
Warranty 21

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The DPIs (Individual Protective Device) scrutinized in these operating instructions have
undergone every po ssible test for design v al i da ti o n by:

Germanisher Lloyd

Vorsetzen 35

20459 Hamburg—Germany

Notified Body n.: 0098

Full face Mask Neptune Space and SL35TX

Comply with CE Certification in accordance with 89/689/EEC directives under the UNI
EN250:2000 standard rules for underwater activities, including cold water use.

PREMISE

The DPIs in question a re a sep ar a te p art of t he sel f-contained underwater breathing
apparatus, commonly known as SCUBA.

They comply with European regulation EN-250:2000. They can be stored at a
temperature of between 32° and 140° F. It is necessary that this equipment only be
used by fully trained, certified divers.

Operating restrictions: The DPIs in question cannot be used with diving products
without the CE mark and the air supply must meet the requirements of EN 12021.
Incorrect use, non-original spare parts and insufficient or poor maintenance, besides
being dangerous to the health and life of the user, releases MESTEL Safety of any
responsibility and nullifies the warranty.

The series of DPIs described in the following manual are the following:
NEPTUNE SPACE G.divers with 1st stage SL 35TX: full face mask with int egrated 2nd

stage regulator and SL 35 TX 1st stage.

WARNINGS, CAUTIONS, NOTES

Pay special attention to information pr ovided in warning s, cautions and notes t hat are

accompanied by these symbols:

A WARNING indicates a procedure or situation that, if not avoided, could
result in serio us i nj ur y or de at h to t he u ser .

A CAUTION indicat es any situation or techni que that could cause dam age
to the product, an d co ul d su bsequently re s ul t in injury to the user.

A NOTE is used to emphasize important points, tips, and reminders.

NEPTUNE SPACE G.divers manual rel.1.7 October 2010

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NEPTUNE SPACE G.divers

INTRODUCTION

The NEPTUNE SPACE G.divers mask was developed through experience gained from
producing products for military personnel protection. All designs and materials were
tested to obtain superior performance and increased safety.

The high quality of the product does not allow the user to ignore the problems
connected with the correct use of the product and the rules for safe diving.

GENERAL PRECAUTIONS AND WARNINGS

Before using this mask, you must have successfully received training and
certification in the technique of SCUBA diving from a recognized certification agency
(or any U.S. Military or government operated diving school). Use of this equipment
by a person who is not cert ified by a reco gnized agency sha ll render all warranties,
express or implied, null and void.

Use of SCUBA eq uipment by uncertified or untrained persons is dangero us and
can result in serious injury or death.

This mask is not configured for commercial use with surface supplied air .
Always pressurize the Neptune Space G.divers gradually by opening t he
cylinder va lve SLOWLY.

NEVER lubricate any p art of th e mask and/or regulator or cylinder valve with
any lubricant. Lubrication must only be performed by an OCEAN REEF trained
technician.

DO NOT apply any type of aerosol spray on the Neptune Space G.divers.
Doing so may cause permanent damage to certain plastic components,
including the second stage hous ing.

DO NOT leave a cylinder standing unsecured with the Neptune Space G.divers
attached to the valve. Doing so may cause permanent damage to the FFM and
cylinder valve if the cylinder falls over against the first stage.

Factory prescribed service for this product must be performed at least once
annually by a factory trained OCEAN REEF Service Technician who is
employed by an Authorized OCEAN REEF Dealer. Repair, service, disassembly,
or first stage adjustment must not be attempted by persons who are not

factory trained and authori z ed by OCEAN REEF.

When diving in cold water (below 450 F, or 70 C), you must have received
training and certification in the techniques of cold water diving from a
recognized training agency.

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The Neptune SPACE G.divers might be used with NITROX gasses up to
40% O2. It is always recommended to use cleaned air from specified
cleaned air source. SL35TX 1st stage can’t be used with NITROX. Always
use NITROX compatible 1st stages when NITROX is required.
Note: not valid in the European Union.

European Union NITROX standards indicate that regulators using gases
over 22% must be purchased together with first stages. They must have
special markings indicating that they are O2 clean.

Before connecting the regulator to the tank, check the following:

• Check that the O-ri ng on the tan k is in plac e on the valv e and is in
perfect working condition (INT WITH Yoke nipple CGA 850 version
only). If it is damaged or miss in g, it should be replaced.

• Verify that the instrumentation and accessories have been installed
correctly.

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WHAT’S THE CORRECT MASK SIZE?

The Neptune Space G.divers is available in two sizes, Small/Medium and Medium/Large.

In order to determine wh et her a di ver should wear a S/M or M/L mask, OCEAN REEF has
designed a Mask Measuring Kit. The sizing and measuring system were designed in
accordance with the official measuring procedure used in the Los Alamos Scientific
Laboratory Charts at the SBCCOM Mask Fit Facility-Aberdeen Provin g Ground (Maryland,
USA).

Before purchasing a mask, the customer may use the calliper to take two simple face
measurements. Using the Full Face Mask Size Recommendation Chart, he or she can
evaluate the size category into which the measurements fall. There are three differe nt
size categories on the chart: Small/Medium, Both, & Medium/Large. If the
measurements fall within the both category, th e n t he diver should technical l y be able to
wear either ful l face mask (M/L or S/M), and in that case should tr y on a mask t o select
the best fit. Please note that the chart boundaries fade. The fading areas represent less
common face measure m en ts. It is very likely that a mask will still fit comfortably even if
measurements are located in these fading areas.

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USE OF CONVENTIONAL REGULATORS

A special adapter al lows the con nection of several kinds
of regulators. The adaptor is available in two sizes,
medium (sta ndard) and sm all. This adapter fits in place
of the surface air valve (code 33020: S, code 33021: M).

USE OF OVER-INJECTED REGULATORS

Over injected regulators have a diaphragm with an
inhalation cracking pressure below zero. These
regulators “fr ee flow” easil y, and as a resul t, should no t
be used with the Neptune Space G.divers or other
Neptune masks.

Changes in regulator performance can also be caused by
the different positi ons assum ed during a div e; the use of

a regulator with flow adjustment is recommended.

When descending the adjustment knob must always be turned on to get
the proper air flow. Do not turn off the adjustment knob while
descending.

1ST STAGE SL 35 TX

The Neptune Space G.divers may be used only with this high performance, balanced

diaphragm 1s t stage wi th anti -fr eez e ki t. T h e f i r st stage has adjustable medium pressure

and is made of brass with a satin finish body, stainless steel piston, Teflon seat, and
stainless steel spring.
It is available with the following characteristics:

• Standard connection 200 bar (code 9922)

• DIN connection 300 bar (code 9923)

• 2 high pressure ports 7/16 -20 UNF

• 4 Medium pressure ports 3/8-24 UNF

• Flow rate of approx. 4800 l/m at 140 bars