OCENCO M-20.2 Manual de usuario
OCENCO M-20.2
Self-Contained Self-Rescuer
Emergency Escape Breathing Device
INSTRUCTION MANUAL
Manual No: NH22050
Revision F, ECN 2760
Page 1 of 16
WARNINGS AND CAUTIONS
WARNINGS
1) WEARERS MUST BE FULLY TRAINED IN THE USE AND CARE OF THE EQUIPMENT.
2) INDIVIDUAL WARNINGS MUST BE STRICTLY ADHERED TO WHICH, IF NOT, IT COULD RESULT
IN INJURY AND OR DEATH OF PERSONNEL.
3) THE M-20.2 EEBD MUST NOT BE USED FOR PURPOSES OTHER THAN THOSE OUTLINED IN
THIS MANUAL.
4) THE M-20.2 EEBD IS NOT TO BE USED UNDERWATER.
CAUTIONS
1) THE M-20.2 EEBD MUST BE REGULARLY INSPECTED TO ENSURE OPERATIONAL READINESS.
2) IF THE M-20.2 EEBD FAILS ANY OF THE INSPECTIONS, REMOVE THE UNIT FROM SERVICE
IMMEDIATELY.
3) REMOVE THE UNIT FROM SERVICE IF THE TAMPER BALL IS MISSING.
4) THE FLOW OF OXYGEN WILL BEGIN AUTOMATICALLY WHEN THE UNIT IS REMOVED FROM IT’S
BASE. YOU SHOULD NOT EXPECT TO HEAR THE FLOW OF OXYGEN OR SEE THE BREATHING
BAG INFLATE.
Page 3 of 16
SECTION 1
CLASSIFICATION OF THE M-20.2 EEBD
The Ocenco M-20.2 is a belt worn or stored, compressed-oxygen, Emergency Escape Breathing Device
(EEBD). The M-20.2 EEBD instantly provides breathable air, independent of the surrounding atmosphere,
to a person escaping from any area of toxic gas or oxygen deficiency.
The M-20.2 EEBD meets or exceeds the EEBD requirement for confined spaces onboard ships in the
United States Navy, the 10 minute self-contained closed circuit breathing apparatus requirement for
escape from confined space, and the EEBD requirement for use in maritime shipboard confined spaces as
required in the SOLAS Convention.
Page 4 of 16
SECTION 2
METHOD OF OPERATION
Oxygen automatically and continuously flows from the cylinder to the breathing bag when the unit is pulled
from the base.
During inhalation, and whenever the bag flattens, the oxygen regulator increases the oxygen flow into the
breathing bag.
During inhalation, oxygen passes from the breathing bag through the scrubber and into the mouthpiece.
During exhalation, carbon dioxide laden air is exhaled through the scrubber and then into the breathing
bag.
During inhalation and exhalation, carbon dioxide is absorbed by the lithium hydroxide scrubber.
Occasionally, during low work rates, the oxygen regulator supplies more oxygen than the user can
consume. When this occurs, the excess gas automatically vents through the relief valve.
The starting of the oxygen flow, the increased flow rate during high work rates, and the occasional venting
of gas through the relief valve, all occur automatically: the user needs only to breathe.
3
2
1
4
5
1. Constant Flow of Oxygen
2. Demand Flow of Oxygen
3. Inhalation
4. Exhalation
5. Relief Valve Exhaust
Page 5 of 16
SECTION 3
DONNING PROCEDURE
The following are the donning steps for the stored configuration of the M-20.2 EEBD. These six steps must
be practiced numerous times until they become second nature.
To fit the neck strap, simply place the neck strap over the head and pull upward on the o-ring to shorten
the neck strap.
To fit the face shield, simply pull the face shield over the head and pull outward on the o-rings to tighten
the face shield around the neck.
In the unlikely event that moisture on the inside of the face shield distorts your vision, simply press or rub
the face shield against the face with your hand.
CAUTION: The flow of oxygen will begin automatically when the unit is removed from it’s
base. You should not expect to hear the flow of oxygen or see the breathing
bag inflate.
Page 6 of 16
SECTION 4
COMPONENTS
Please refer to the illustration of components on next page:
1. Nose Clip: the yellow nose clip is attached to the mouthpiece and is used to close the nasal passage
during use of the EEBD.
2. Mouthpiece: the yellow mouthpiece is placed in the mouth such that the flange seals between the
lips and gums. The bits should be between the upper and lower teeth. Gently bite on the bits.
3. Neck Strap: the yellow neck strap is to be placed over the head for support and can be adjusted for
fit.
4. Oxygen Cylinder: the stainless steel cylinder holds 100% medical grade oxygen.
5. Oxygen Regulator: starts the flow of oxygen and increases the oxygen flow during high work rates.
6. Activation Cable: the stainless steel activation cable is attached to the oxygen regulator and
permanently attached to the inside of the base.
7. Gauge: indicates the amount of oxygen in the cylinder. The green zone indicates the M-20.2 EEBD
is ready for use. The red zone indicates the cylinder is low on oxygen and should be removed from
service. The gauge is visible through the clear case and the orange secondary container.
8. Scrubber: a chamber containing lithium hydroxide that removes carbon dioxide from the exhaled air.
9. Breathing Bag: air reservoir that receives oxygen from the regulator and exhaled air from the user.
10. Relief Valve: a one way valve that automatically allows excess air in the breathing bag to vent.
11. Yellow Latch Lever: the yellow latch lever is lifted upwards to open the M-20.2 EEBD.
Only lift Latch during emergency use.
12. Cover: the cover has an integral yellow tab, when lifted, releases any possible vacuum which may
have developed due to change in atmospheric pressure.
13. Base: features integral belt loops. If belt worn, the base stays on the belt after the M-20.2 EEBD has
been removed from the case. The base has an overcase that provides increased abrasion and
impact resistance.
14. S-Hook: the metal hook that receives the cover latch on the belt side.
15. Face Shield: in the event the user requires head protection from smoke or chemical vapor, the face
shield may be pulled up over the head and secured around the neck by pulling outward on the draw
strings. This should be done only after inserting the mouthpiece and applying the nose clips.
16. Bag Shield: a cover providing additional protection to the breathing bag, to protect against heat,
punctures or chemicals.
17. Tamper Indicating Ball: the presence of a stainless steel ball bearing located in the center of the
yellow lever assures that the unit has not been opened.
Unit must be removed from service if the Tamper Ball is missing.
18. Band Label: is a user completed label indicating the commencement date of belt worn service.
19. Information Label: contains the following information:
MFG Date: XX/XX the date of manufacture as month/year
Life Date: XX/XX the end of service life date as month/year
Serial No.: X123456 the traceable serial number of the M-20.2 EEBD
Page 7 of 16
4
13
6
5
10
7
9 & 16
19
8
2
3
1
13
14
12
17
11
18
15
Page 8 of 16
SECTION 5
SPECIFICATIONS
Duration
10 minutes, US 42 CFR 84, Dept. of Health and Human Services, NIOSH
10 minutes, European Standard EN400, EC mark CE0194/EN400
15-18 minutes, U.S. Navy Test Protocol, Naval Surface Warfare Center.
32 minutes, at rest, as determined by US 42 CFR 84 mantest number 5
Dimensions
6.9 x 16.7 x 15.5 cm (2.75 x 7.0 x 6.1 in)
Weight
900 grams, breathing apparatus only (2.0 lb.)
1410 grams, with case and overpads (3.1 lb.)
Storage temperature
Minimum: 10˚F (-12.2˚C)
Maximum: 149˚F (65˚C)
SECTION 6
SERVICE LIFE
Service Life: The M-20.2 may remain in service for fifteen years from the date of manufacture, provided
the conditions of use are observed.
The M-20.2 must be either stored or belt worn, according to the conditions of use, throughout its service
life. The M-20.2 may be deployed in the belt worn configuration for 5 continuous years during its 15 year
service life.
After the M-20.2 has been deployed in the belt worn configuration for 5 continuous years, it may be stored
for the remainder of the service life, or it maybe returned to Ocenco Incorporated to be refurbished. After
the M-20.2 has been refurbished by Ocenco, it may be re-deployed in the belt worn configuration for 5
years.
Conditions of Use:
(1)The visual inspections described in this manual must be performed.
(2) Proper care described in this manual must be performed.
(3) When stored, the M-20.2 EEBD must be contained in an Ocenco, Incorporated Secondary
Container, (P/N648000), and then placed in a rigid bracket securely fastened to a wall or other
substantial structure.
(4) If belt worn, the M-20.2 EEBD must be worn on the person and initial date of use recorded on
the Band Label.
(5) The M-20.2 EEBD is not to be shoulder carried in the Secondary Container.
Use of the Secondary Container strap is intended for emergency egress only.
Page 9 of 16
SECTION 7
DURATION
Five factors affect the duration of the M-20.2 EEBD:
1. The amount of work required to escape affects the duration. Low ceilings, steep inclines or ladders, and
irregular floors increase the work required to escape. Less work results in greater duration.
2. The physical condition or "fitness" of the user affects the duration. A high heart rate, age and high
percent of body fat decrease the fitness of the subject. The more fit the user, the greater the duration.
3. Regardless of the "fitness" of the user, the amount of oxygen required is proportional to the user’s
weight. The less the user weighs, the greater the duration.
4. The user's breathing rate affects the duration. The rate can be increased by excitement and fear. The
lower the breathing rate, the greater the duration.
5. The degree of training and familiarity can affect the duration. The more training and experience the
subject has with the M-20.2 EEBD, the more his breathing will be calm and controlled. If a subject is
familiar with a particular escape-way it may improve the mechanics of his escape. The greater the
training and familiarity, the greater the duration.
SECTION 8
HOW TO INSPECT THE M-20.2 EEBD
The inspections for the M-20.2 EEBD are visual. DO NOT lift the yellow latch or open the clear case to
inspect the M-20.2 EEBD.
The inspections described below shall be performed on each M-20.2 EEBD upon deployment.
Subsequently, if the M-20.2 EEBD is belt worn, the inspection shall be performed at the beginning of
each work shift that the device is worn. If stored, the following visual inspections should be conducted
every year:
1. Presence of Tamper Indicating Ball on the latch lever.
.
Yellow Latch Lever
ONLY lift for
ency escapeemerg use
Tamper Indicating Ball
WARNING: DO NOT use unit if Tamper Indicating Ball is missing or Latch has been
opened. Remove unit immediately from service if the unit has been tampered with or if
Tamper Indicating Ball is missing. Lifting Yellow Latch Lever voids the warranty.
2. Read the Pressure Gauge: The tip of the needle on the gauge is normally in the green zone. If the
needle is in the red or on the white zero pressure mark, remove the M-20.2 EEBD from service
immediately. If the view of the gauge is obstructed, the M-20.2 EEBD must be removed from
service. If the surrounding air temperature is above 120°F (49°C) and the needle is above the
green zone, the unit can remain in service. The needle should return to the green zone when unit is
removed from the high temperature.
Page 10 of 16
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