Ocean Technology Systems Spectrum User manual

OCEAN TECHNOLOGY SYSTEMS
Spectrum
Full-Face Mask
Owner’s Manual

IMPORTANT INFORMATION
PLEASE REFER TO OUR WEBSITE AT :
WWW.OCEANTECHNOLOGYSYSTEMS.COM
FOR MORE INFORMATION ABOUT THE SPECTRUM
FULL FACE MASK
REVIEW MANUAL AND EMERGENCY PROCEDURES
BEFORE DIVING THIS EQUIPMENT. FAILURE TO
COMPLY MAY RESULTS IN INJURY OR DEATH.

3
TABLE OF CONTENTS
- Important Safety Notice -.................................................................................. 4
Introduction.......................................................................................................... 5
Warnings and Precautions ................................................................................. 6
Description........................................................................................................... 7
What is a “Full-Face Mask?”.............................................................................. 7
Environmental Protection ............................................................................... 7
Physiological Considerations ......................................................................... 7
Communications............................................................................................. 8
Anatomy of the Spectrum Full-Face Mask......................................................... 8
Head Harness Assembly................................................................................ 8
Drain Tab ........................................................................................................ 9
Visor Drain Holes ........................................................................................... 9
Inner Frame.................................................................................................... 9
Setting up the Spectrum Full Face Mask ........................................................ 10
Acceptable Zip-Ties for Installation.................................................................. 10
Installing Second Stage Regulator................................................................... 10
Inner Frame Installation ................................................................................... 11
Regulator Removal .......................................................................................... 11
Inner Frame Removal ...................................................................................... 12
Acceptable Second Stage Regulators ............................................................. 12
Regulator Exhaust Tees................................................................................... 13
Donning and Dofng Procedures .................................................................... 13
Overall Safety Inspection................................................................................. 13
Hoods and Seals.............................................................................................. 13
Donning and Adjustment.................................................................................. 14
Dofng.............................................................................................................. 15
Diving The Spectrum Full-Face Mask.............................................................. 15
Pre-Dive........................................................................................................... 15
Post-Dive Procedures...................................................................................... 15
Warning Note............................................................................................ 16
Training and Emergency Procedures.............................................................. 16
Emergency Procedures ................................................................................... 17
Installation of Communications....................................................................... 18
Buddy Phone®Installation Instructions .......................................................... 19
EM-OTS-2 Installation Instructions.................................................................. 20
Specications .................................................................................................... 21
Limited Warranty ............................................................................................... 22

4
- NOTICE -
This manual and the information contained herein are provided for use as
a maintenance and operation guide. No license or rights to manufacture,
produce, and/or sell either the manual or articles described herein are given.
Undersea Systems International, Inc., dba Ocean Technology Systems
hereinafter referred to as OTS, reserves the right to change specications
without notice. We recommend that all users read and fully understand this
manual before using a Spectrum Full-Face Mask (FFM).
All statements, technical information, and recommendations herein are
based on tests we believe to be reliable, but the accuracy or completeness
thereof is not guaranteed; and the following is made in lieu of all warranties,
expressed or implied, including the implied warranties of merchantability
and tness for purpose: Seller’s and Manufacturer’s only obligation shall
be to replace such quantity of the product proved to be defective. Before
using, the user shall determine the suitability of the product for intended
use, and the user assumes all risk and liability whatsoever in connection
therewith. Neither Seller nor Manufacturer shall be liable either in tort or
in contract for any loss or damage—direct, incidental, or consequential—
arising from the use of or the inability to use the product. No statement or
recommendation not contained herein shall have any force or effect unless
it is in an agreement signed by ofcers of the Seller and Manufacturer.
- IMPORTANT SAFETY NOTICE -
(Please read before using product)
It is absolutely essential that all users are certied divers in good
standing, properly trained, equipped, and fully understand this
user’s manual before attempting to use the Spectrum FFM. While the
Spectrum FFM does provide the diver with outstanding underwater
environmental protection, it does not change or eliminate the potential
hazards of diving!
Refer to the User Manuals page of our Web site at,
www.oceantechnologysystems.com for a list of any changes made to
this manual since its publication.
© Copyright 2018 by Undersea Systems International, Inc., dba
Ocean Technology Systems. All rights reserved.
Specications are subject to change without prior notice.

5
INTRODUCTION
Congratulations on the purchase of your new OTS Spectrum Full-Face
Mask! This full-face mask (FFM) is one of the few that has been designed
from the ground up as a scuba diving mask. The Spectrum FFM was
designed with comfort, t, and function in mind. Having been in the
underwater communications business for over three decades, Ocean
Technology Systems (OTS) created the Spectrum FFM based around
what we’ve learned from listening to the needs of our customers. Our goal
was to design a product that was comfortable, t the vast majority of the
diving population, was simple to use, easy to maintain and would t most
2nd stage regulators. More importantly, it had to be rugged and perform as
well or better than anything on the market.
OTS is proud to provide you with this advanced diving apparatus and hope
you enjoy it as much as we do.
All who intend to use this Spectrum FFM must read this manual carefully
prior to preparing and using this equipment. Training must be obtained
before using this or any other advanced diving equipment. Become familiar
with emergency procedures and ensure you are equipped with proper
bailout equipment appropriate for the type of diving you are performing.
If you have any questions or don’t fully understand this manual, please
contact OTS directly or an authorized OTS Dealer (OTS contact information
is listed under the “Limited Warranty” on page 22).
Danger Note
• Undersea Systems International Inc. dba Ocean Technology Systems
cannot guarantee diver’s protection from contaminated diving
environments, including but not limited to : biological, chemical,
radioactive contaminates.

6
Warning Note
• Diving a Spectrum Full-Face Mask or any scuba diving equipment without
proper training and experience can result in serious harm or death.
• This is an advanced piece of diving equipment that requires special
training and practice prior to diving it in an open water environment.
Proper maintenance and care of this equipment is essential for safe
operation.
• Always inspect the Spectrum Full-Face Mask for damage prior to diving
if you suspect it has been subjected to any abuse, tampering, or impact.
• It is YOUR responsibility to insure that your equipment is in good condition
and operating properly. Remember, this is LIFE SUPPORT EQUIPMENT!
• Diving is an inherently dangerous sport. Participating in this activity puts
you at risk of serious injury or even death.
• Prior to diving the Spectrum FFM, ensure it is clear of all packing materials
or any other foreign debris.
WARNINGS AND PRECAUTIONS
While reading and reviewing this manual, please note the following
indicators for Warnings and Dangers:
Warning Note
The “Warning” symbol indicates something that
might cause damage to the equipment, or, if not
properly performed, may lead to a hazardous
situation that could cause injury or death.
Danger Note
The “Danger” symbol indicates a most important
point that if not avoided will result in a situation
that causes injury or death.

7
DESCRIPTION
What is a “Full-Face Mask?”
The OTS Spectrum FFM differs from standard scuba equipment in that the
second-stage regulator is incorporated into the mask and the mask covers
your “full” face, hence the term.
There are four primary reasons to dive a Spectrum FFM:
1. Environmental protection
2. Physiological considerations
3. Communications
4. For the fun of it
Environmental Protection
Anytime a diver is in water that would be considered less than healthy (e.g.,
biological/chemical contamination, extreme cold, etc.), protection is of the
utmost importance. The Spectrum FFM affords a signicant protection
advantage over that of a standard bite regulator and mask. While not a
substitute for full protection as required in hazmat diving, the Spectrum
FFM can add protection in contaminated water that standard equipment
cannot. This conguration is commonly seen in light commercial and
public safety diving.
Physiological Considerations
The Spectrum FFM protects the diver in other ways as well. If, for any
reason, a diver were to become unconscious underwater, the Spectrum
FFM is able to maintain a breathable airspace in front of the diver’s nose
and mouth assisting in survival (assuming the scuba tank has air). This
aspect of the Spectrum FFM is extremely useful for divers with TMJ,
dentures, disabilities, and for those divers using high concentrations of
oxygen (convulsion risk).
Warning Note
• Diving a Spectrum Full-Face Mask or any scuba diving equipment without
proper training and experience can result in serious harm or death.
• This is an advanced piece of diving equipment that requires special
training and practice prior to diving it in an open water environment.
Proper maintenance and care of this equipment is essential for safe
operation.

8
Anatomy of the Spectrum Full-Face Mask
Front Aspect
KEY:
1. Upper Lens Clamp
2. Lower Lens Clamp
3. Push-to-Talk (PTT)
Communications Port**
4. Drain Tab
5. Regulator Port
6. Inner Frame Port
7. Visor Drain Holes (located
inside mask)
8. Tempered Glass Visor
9. Accessory Attachment
Points
10. Accessory Attachment Point
11. Buckle (5 total)
Figure 1: Front of Mask
**Shown with communications PTT switch (not included)
1
2
36
4
10
5
8
9
7
11
Communications
In order to use underwater communications, an airspace is required to
allow for articulation and placement of a microphone. The Spectrum FFM
has an oral/nasal cavity that provides optimal communications, while
some FFMs have the nose separated from the mouth. This separation
alters the voice slightly, as in pinching your nose when talking and does
not achieve optimal underwater communications.
Figure 2: Five-Point Head
Harness
Head Harness Assembly
The Spectrum FFM uses a ve‑point
strapping system (Figure 2). Buckles are
mounted by a button securely on tabs that
are a part of the skirt. If needed, they are
replaced easily by stretching the tab and
either removing or replacing the button end
of the nylon buckle.

9
Drain Tab
The Purge Drain Tab is located under the
chin pocket of the mask and is designed
to help fully eliminate any residual water
remaining after a ood and clear of the
mask. After clearing the majority of the
water out via the regulator purge button
simply pull down on the tab and blow out
any remaining water.
Visor Drain Holes
The Spectrum features two Visor Drain
Holes located in the inside of the mask
on the top of the oral nasal pocket where
the “teardrop” portion of the visor meet.
The holes are designed that if water pools
in the visor, it will drain into the oral nasal
pocket where it can then be evacuated by
blowing out the nose or mouth, or by using
the purge button of the 2nd stage regulator.
Inner Frame
The inner frame located in the oral nasal
pocket is key in properly mounting a second
stage regulator into the Spectrum FFM.
The purpose is to add rigidity to the mask
while adding the least amount of weight as
possible. When the inner frame is properly
implemented, the oral nasal pocket is
signicantly strengthened. This reduces the
amount of “push / pull” effect of the second
stage regulator when inhaling & exhaling,
as well as limiting the range of motion of
the regulator.
Figure 3: Drain Tab
Figure 4: Visor Drain Hole
Figure 5: Inner Frame

10
SETTING UP THE SPECTRUM FULL FACE MASK
Acceptable Zip-Ties for Installation
Prior to installing second stage regulator into the Spectrum FFM, ensure
the inner frame is not installed and the regulator port is not damaged.
Locate the zip tie included with the Spectrum FFM. (Only use a military
standard MS3367-7-0 zip tie).
Installing 2nd Stage Regulator
Remove bite mouth piece (if installed)
from second stage regulator. Insert second
stage regulator mouthpiece tube into
the regulator port through the front of the
Spectrum FFM. Ensure the end of the
regulator port corresponds with the end of
second stage regulator.
Install zip tie tightly around second stage
regulator so that it wraps around and
fastens the mouthpiece tube securely to
the Spectrum FFM. Ensure the ratchet of
the zip tie is oriented along the horizontal
axis of the regulator port (Figure 7).
NOTE : Figure 7 & 8 shown in a
clear skirt for contrast. Clear skirts
are not available for purchase
Danger Note
• It is vital that installing the zip-tie into the Spectrum FFM is done correctly
with the specied zip‑tie. Improperly installing the zip‑tie and regulator
can result in the regulator becoming dislodged from the mask resulting in
possible injury or death!
Figure 6: Installing Regulator
Figure 7: Install Regulator