Zeagle Defender EBS 310 User manual

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ZE.01.05.0030 REV. A
EBS User Manual

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ZE.01.05.0030 REV. A
EBS User Manual

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ZE.01.05.0030 REV. A
EBS User Manual
TRADEMARK NOTICE
HUISH OUTDOORS and the ZEAGLE logo are registered or unregistered trademarks of Huish
Outdoors. All rights are reserved.
EC TYPE EXAMINATION CONDUCTED BY:
Products carrying the CE mark have the EC Type Examination conducted by:
SGS Fimko Oy, Takomotie 8, FI-00380 Helsinki, Finland
Notified Body 0598
All products sold by Zeagle in the EU (European Union) comply with the following requirements
where applicable.
EN12021: This standard specifies the allowable contaminates and component gases that make up
compressed air. This standard is the equivalent of the USA Compressed Gas Association’s Grade E
air. Both standards allow very small amounts of contaminants that are not harmful to breathe, but
can cause a problem if present in systems using gases with a high percentage of oxygen.
EN4856: The EBS is considered a Emergency Self Contained Emergency Underwater Breathing
Apparatus. A such, the EBS is designed for user deployment and operation with sufficient notice
given to the user to deploy the device.
A “Declaration of Conformity” is on the Huish Outdoors website at: https://www.huishoutdoors.com/
eu-declarations/declarations-of-conformity/
The Zeagle Defender EBS is certified as an underwater escape breathing apparatus for use to a
maximum depth of 4m in water temperatures of 4°C or greater. It is certified that the EBS meets the
Essential Health and Safety Requirements in Annex II of Regulation (EU) 2016/425 Personal
Protective Equipment. This PPE satisfies the requirements for a shallow water underwater escape
breathing apparatus based on relevant principles and elements of EN4856:2023 - Rotorcraft
Emergency Breathing Systems (EBS), requirements, testing and marking. Also in compliance to
harmonized standard EN250:2014 - Respiratory Equipment open circuit, self contained, compressed
air diving apparatus, requirements, testing and marking.

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INTRODUCTION
The Defender Emergency Breathing System (EBS) is a device intended to assist an individual to
escape from an emergency situation involving involuntary submergence below water, such as that
which might occur with a downed aircraft in a body of water.
It is a self-contained system that features a robust design with particular attention to simplicity,
reliability and convenient compact size to enable ease of use and maintenance.
Additional features that include adjustable mouthpiece positions, a flexible hose with swivel
connections and convenient port connections provide desirable options for the user to adapt the
device to personal preferences.
While the EBS is not difficult to use, specific training and practice is required for the user to use it
effectively in an emergency situation.
WARNINGS, CAUTIONS AND NOTES
This manual contains information that could affect your safety. Certain items are emphasized with
symbols and signal words to indicate a potential hazard.
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The Defender EBS is intended to be used as a device to assist an individual in self-rescue to escape
from an emergency situation involving submergence in shallow water for a brief period. It is not
designed nor tested for any other purpose.
Proper training is essential for your safety. Training experience must include in- water survival,
breathing compressed air underwater and emergency egress from aircraft.
You must be familiar with and trained in the use of this particular device to maximize your effective use
of it. Failure to respond to this warning could result in a situation leading to serious injury or death.
In order to prepare for, use and maintain this device properly, it is essential that you understand all of
these aspects through reading this manual and mastering the skills necessary to operate, inspect and
maintain it properly. Failure to do so could result in a situation whereby the EBS would not be an
available resource to assist with self rescue and possibly lead to serious injury or death.
GENERAL DESCRIPTION
The EBS is comprised of a cylinder of compressed air with an integrated cylinder valve and pressure regulator
designed to interface with the user and deliver air at a reduced pressure suitable for breathing. When fully
charged to maximum operating pressure of 310 bar (4500 PSI), the cylinder has the capacity to delivery 89 L
(3.2cubic feet) of air at atmospheric pressure.
The EBS has a limited capacity to deliver air for only a brief period in shallow water (4m;13 ft)
The time duration for supplying air will vary between individuals and breathing rates. This is an indicator
supporting the need for training to maximize effective use of the device.
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CYLINDER
A carbon composite reinforced AMS Type 3 cylinder is used to store compressed air for delivery to the user. It
complies with ISO 11119-2 standards for certification and has a maximum working pressure of 310 bar (4500
PSI).
All cylinders shipped with the Defender EBS are EU approved and labeled as follows in compliance with EU
standards.
EBS FIRST STAGE REGULATOR
The EBS integrated first stage regulator and valve is threaded into the cylinder to provide a compact assembly.
It is provided with an onboard pressure gauge, an ON/OFF port, fill port and low-pressure hose with a swivel
connection attached to the second stage.
The integrated cylinder valve/regulator is available in two different configurations with either a manually-
operated ON/OFF port or an option that requires a 3 mm hex tool to operate the ON/OFF selection.
Selection of the OFF position applies to maintenance activity only and should never be selected when
the EBS is ready and available for use.
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EBS FIRST STAGE WITH ON/OFF KNOB INSTRUCTIONS
The first stage regulator with an integrated on/off knob is illustrated below. The unit must be in the on position
or turned fully in the counterclockwise direction until aligned with green zone and arrow.
To turn off, rotate clockwise until the red zone is aligned with the arrow.
See instructions for use in EBS Deployment section of this manual.
EBS User Manual
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The ON/OFF port of the integrated valve and first stage must always be in the ON position any
time the EBS is in service and ready to be deployed. If the valve has been closed to the OFF position at any
time, it must be fully reopened to the ON position by rotating counterclockwise at least one full revolution
before it is acceptable for use. DO NOT place the unit into service without ensuring it is in the ON position.
Failure to ensure unit is in the ON position will render the EBS incapable of delivering air to the user.
ON POSITION OFF POSITION

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The ON/OFF port of the integrated valve and first stage must always be in the ON position any
time the EBS is in service and ready to be deployed. If the valve has been closed to the OFF position at any
time, it must be fully reopened to the ON position by rotating counterclockwise at least one full revolution
before it is acceptable for use. DO NOT place the unit into service without ensuring it is in the ON position.
Failure to ensure unit is in the ON position will render the EBS incapable of delivering air to the user.
EBS SECOND STAGE REGULATOR
The second stage regulator with an integrated mouthpiece is connected to the first stage by means of a flexible
hose with a swivel connection. Its purpose is to provide a means to connect with the user’s mouth and supply
air on demand for breathing. See instructions for use in EBS Deployment section of this manual.
The second stage assembly also provides a location for storage of a nose clip to assist with breathing control
and a purge cover cap to prevent accidental operation of the purge function when the EBS is in transit or
otherwise not in service and ready to use.
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EBS PREPARATION FOR IN-SERVICE USE
CYLINDER PRESSURE - The EBS is delivered from the factory fully charged with the valve in the
ON position ready for immediate use. Cylinder pressure must not be less than 310 bar (4500) PSI to
be fully charged. If charging is necessary, refer to the Cylinder Filling Procedure contained in this
manual.
FIRST STAGE ON/OFF PORT -The port must be in the ON position at all times when the EBS is
in service and ready to use.
SECOND STAGE FEATURE - The mouthpiece orientation is adjustable but should only be changed
by a trained service technician. It may be indexed to the user’s preference, but only as a maintenance
option and may not be changed while the unit is in service for immediate use.
SECOND STAGE PROTECTIVE COVER - This device is intended for EBS transit or storage only. It
MUST NOT be installed anytime the EBS is placed in service and ready for use.
DEPLOYMENT OF EBS IN EMERGENCY SITUATION
1. Use one hand to secure your position at the nearest exit escape route. Use your free
hand to grasp the EBS second stage regulator and pull out and away from your body to
ensure hose is free from entanglement.
2. Place your mouth over the mouthpiece and exhale providing a puff of air to clear
residual water that might be inside the second stage housing. Then inhale, lightly at first
to be sure residual water is not present, and then continue to breathe normally. If there
is water present after first exhalation, block the air path in the mouthpiece with your
tongue and press the purge feature on the front of the second stage housing to clear
residual water and then continue to breathe normally, recognizing that the air supply is
limited and expedient travel to the surface is required.
DO NOT HOLD YOUR BREATH. BREATHE NORMALLY. Failure to
exhale lightly and continuously or breathe uninterrupted as you
ascend from even shallow depths can create a hazardous pressure
imbalance in the lungs risking respiratory damage, with the
possibility of serious injury or death.
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3. Immediately after you have control of the mouthpiece in your mouth, use your free
hand to locate and grasp the Nose Clip that is secured to the second stage housing.
Pinch the Nose Clip tabs together as shown in the illustration below to open it and place
it over the nose and release. The purpose of the Nose Clip is to block entry of water into
the nose while breathing. Do not try to breathe through the nose while submerged.
4. Note that the EBS is designed to deliver air only when you attempt to inhale. When you
stop inhaling, air flow ceases allowing you to comfortably exhale. Air flow to you can be
manually activated anytime by pressing the purge feature as long as there is a
remaining air supply in the cylinder.
5. After you reach the surface and have access to air, discontinue use of the EBS. Once
the EBS has been deployed for either an emergency or training it must be removed
from service, no longer available for emergency use until after it has been recharged or
received periodic maintenance.
CYLINDER FILLING GUIDELINES
Connection to a compressed air supply to charge the EBS requires a specific Filler Adapter. It
is a compressor accessory for the air supply facility and is not supplied * as part of the EBS
assembly.
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EBS User Manual