Dräger PAS Colt Series Instructions For Use

PAS ® Colt Series
Airline/Short duration respiratory protection equipment with PAS
1 For your safety
1.1 General safety statements
● Before using this product, carefully read the Instructions for Use.
● Strictly follow the Instructions for Use. The user must fully understand
and strictly observe the instructions. Use the product only for the
purposes specified in the Intended Use section of this document.
● Do not dispose of the Instructions for Use. Ensure that they are
retained and appropriately used by the product user.
● Only fully trained and competent users are permitted to use this
product.
● Comply with all local and national rules and regulations associated
with this product.
● Only trained and competent personnel are permitted to inspect, repair and
service the product. Dräger recommend a Dräger service contract for all
maintenance activities and that all repairs are carried out by Dräger.
● Properly trained service personnel must inspect and service this
product as detailed in the Maintenance section of this document.
● Use only genuine Dräger spare parts and accessories, or the proper
functioning of the product may be impaired.
● Do not use a faulty or incomplete product, and do not modify the
product.
● Notify Dräger in the event of any component fault or failure.
● The air supply shall meet the requirements for breathing air according
to EN 12021.
1.2 Definitions of alert icons
Alert icons are used in this document to provide and highlight text that
requires a greater awareness by the user. A definition of the meaning of
each icon is as follows:
WARNING
Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided,
could result in physical injury or damage to the product or
environment. It may also be used to alert against unsafe practices.
NOTICE
Indicates additional information on how to use the product.
2 Description
2.1 Product overview
This variant of the Dräger PAS ® Colt Series provides respiratory protection
for working in a contaminated environment using the air cylinder or an airline.
The equipment is available as a 10 minute or 15 minute short-duration
version. These are nominal durations available for self-contained use of
the equipment until a whistle sounds to warn the wearer that there is low
cylinder pressure. The nominal duration is determined by the capacity
(volume and pressure rating) of the selected air cylinder – the actual
duration is also dependent on the rate at which the wearer uses air from
the cylinder (the breathing rate).
The features of the equipment are:
● The carrying system is a bandolier shoulder harness and waist belt with
a hip mounted cylinder holster.
● The pressure reducer (Fig 1, Item 2) connects directly on to the air
cylinder, and reduces the cylinder pressure to the medium pressure
required at the lung demand valve (Fig 1, Item 1). The reducer has a
cylinder pressure gauge, and a whistle that sounds to warn the wearer
that there is low cylinder pressure.
● The airline connector (Fig 1, Item 4) is a male quick coupling that is
used to connect an independent air supply for airline use.
● The medium-pressure hose has a quick coupling that allows rapid
removal and fitting of the lung demand valve when required.
®
● The Dräger PAS ASV (automatic switch-over valve), air cylinder and
lung demand valve are described below.
Optional feature:
● Dropdown cylinder holster: assists wearer movement by making the
cylinder and holster more manoeuvrable (in a confined space for
example).
®
2.1.1 PAS ASV
The Dräger PAS ® ASV (Fig 1, Item 3) allows the PAS
with an independent air supply such as a factory airline or other breathing
air supply (e.g. Dräger PAS ® AirPack).
automatically switches between the airline supply and the PAS
cylinder, maintaining an uninterrupted air supply to the wearer during
switching.
Refer to Fig 2
AL (airline) Input from an independent air supply
BA (breathing apparatus) Input from the PAS
LDV (lung demand valve) Output to the lung demand valve
During airline use, the PAS ® Colt is connected to a breathing-quality
®
independent air supply, and the PAS Colt cylinder valve is open. The
PAS ® ASV uses the independent air supply as the primary supply of
breathing air to the wearer, and the PAS
secondary (or back-up) supply.
● If the independent air supply pressure remains above a preset switching
pressure the wearer breathes from the independent air supply.
● If the independent air supply pressure falls below the preset switching
pressure, the PAS ® ASV automatically switches to supply the wearer
from the air cylinder, and the PAS ® ASV whistle (Fig 2, Item 1) sounds.
If the independent air supply pressure recovers (increases above the
preset switching pressure), the PAS ®
independent air supply and the whistle stops.
● If the independent air supply is disconnected, or falls to a very low
pressure, the PAS ® ASV whistle stops.
See the technical data (Section 8) for the PAS
2.1.2 Air cylinder
Cylinders are available with a 200 bar or 300 bar working pressure rating,
and in steel or composite materials. Only air cylinders listed in the Dräger
3360044
© Dräger Safety UK Limited
Edition 05 – November 2018 (Edition 01 – June 2013)
Subject to alteration
PAS ® is a registered trademark of Dräger
1
1
2
4
1
6
8
10
certification are approved for use with the PAS
further information.
2.1.3 Lung demand valve (LDV)
A variety of Dräger lung demand valves are compatible with this
equipment, with the coupling (Fig 3, Item 1) selected to match the face
mask coupling (see table below):
LDV
® Colt to be used
coupling
The switch-over valve
® A
Colt air
AE
N
® Colt air cylinder
During use, the lung demand valve activates automatically as the wearer
breathes, and then regulates the breathing air supply into the face mask in
response to the breathing rate of the wearer.
● On positive-pressure systems, when the lung demand valve is
® Colt air cylinder as the
activated, the internal valve remains open until closed by the user.
Positive-pressure valves have a reset button (Fig 3, Item 2) that closes
the valve when required. Pressing the reset button closes the internal
valve to switch off the air flow through the lung demand valve.
● On negative-pressure systems the internal valve closes automatically
to switch off the air flow through the lung demand valve.
The lung demand valve can also be activated manually by pressing the front
ASV switches back to the
button (Fig 3, Item 3) to open the internal valve and activate air flow when
required. During airline use only, the front button can be pressed to deliver
additional air (supplementary air) into the mask when required by the wearer.
2.2 Intended use
® ASV operating pressures.
When this product is used with an approved face mask, air cylinder, lung
demand valve and independent air supply, it provides the wearer with
respiratory protection for working in contaminated or oxygen-deficient
conditions. It is intended for use in applications where a high level of
respiratory protection is required. The equipment is intended to be used for
®
ASV (airline whistle)
2
3
3
1
1
3
3687
5
2
3723
7
3625
9
3728
11
3730
® Colt. Contact Dräger for
Face Type Coupling type
mask
coupling
P Positive Push-in – Dräger specific
pressure
PE Positive Screw-in – M45 x 3 to EN 148-3
pressure
RA Negative Screw-in – 40 mm round thread
pressure to EN 148-1
Instructions for Use
combination airline/short duration applications, but it can also be used for
short duration only applications.
The air cylinder, face mask (full face mask conforming to EN 136 Class 2
or Class 3) and other accessories used with this product must be certified
Dräger components, assembled in an approved configuration; otherwise
the operation of the device may be impaired. Contact Dräger for further
information.
4
2.3 Limitations on use
This product is not approved for use in CBRN applications.
3726/3731
Use in potentially explosive atmospheres
2
● The PAS ® Colt Series are type tested as suitable for use in potentially
explosive atmospheres. Electronic sub-assemblies are ATEX certified.
The combinations are suitable for use in hazardous areas up to and
including zone 0 and zone 20. The combinations can be used in
atmospheres containing gases of the gas explosion group IIC, with the
exception of combinations using the f 2 range of face masks, which are
only suitable to be used in atmospheres containing gases of the gas
explosion group IIB.
● Do not charge the cylinder in a potentially explosive atmosphere.
2.4 Approvals
3717
The European standards, guidelines, and directives according to which
this product is approved are specified in the declaration of conformity (see
declaration of conformity or www.draeger.com/product-certificates).
3 Use
WARNING
The cylinder and airline air quality shall meet the requirements for
breathing air according to EN 12021. Do not use oxygen or
3727
oxygen-enriched air. The moisture content of breathing air should
be controlled within the EN 12021 limits to avoid freezing the
3
apparatus.
2
Carry out a risk assessment of the workplace to ensure that it is
not possible to connect to any airline supply other than breathable
air (e.g. Nitrox).
Fill the PAS ® Colt air cylinder to the full rated working pressure
1
prior to use, and do not commence any operation using a cylinder
that is less than 90 per cent full (or greater when national
regulations dictate).
Before using airline equipment, ensure that the independent air
3626
supply meets the air quality requirements, and complies with the
airline pressure, flow and hose requirements in the technical data
(see Section 8), and has been issued with a permit for use if
necessary.
Position the source of the independent air supply in a safe and
uncontaminated area. Dräger recommend that a controller should
monitor and maintain the independent air supply throughout any
operation.
3.1 Preparation for use
3729
3.1.1 Visual inspection
Carry out a visual inspection, checking the full breathing apparatus
including all component parts and accessories. Check that the equipment
is clean and undamaged, paying particular attention to pneumatic
components, hoses and connectors. Typical signs of damage that may
affect the operation of the breathing apparatus include impact, abrasion,
cutting, corrosion and discoloration. Report damage to service personnel
and do not use the apparatus until faults are rectified.
3.1.2 Fitting the cylinder
1. Ensure that the cylinder is fully charged.
3713
2. Check the threads of the cylinder valve port and the pressure reducer.
Ensure that the O-ring seal (Fig 4, Item 1) and the sintered filter (Fig 4,
Item 2) in the reducer are clean and undamaged.
3. Fully insert the cylinder into the carrying holster. To prevent damage,
ensure that the cylinder remains clear of the hand wheel of the
pressure reducer while inserting the cylinder.
4. Align the cylinder with the pressure reducer and tighten the hand wheel
hand tight (Fig 5). Do not use tools or over tighten.
3.1.3 Functional testing
WARNING
If the breathing apparatus fails to meet any of the standards or
parameters described in the functional tests, or if an immediate
leak is evident, there is a system fault. Report the fault to trained
service personnel or contact Dräger. Do not use the breathing
apparatus until the fault condition is rectified.
1. Positive-pressure systems: press the reset button (Fig 3, Item 2) to
switch off the valve.
2. Open the PAS ® Colt cylinder valve slowly, but fully, to pressurize the
system. The whistle on the PAS
sound.
3. Ensure that cylinder is fully charged and then close the cylinder valve.
4. Wait one minute and then observe the pressure gauge and reopen the
cylinder valve. The gauge must not show an increase in pressure of
more than 10 bar (one radial marking on the gauge face). Investigate
and repair any leak before use (see Section 4). If necessary, use a
soapy solution to locate the leak.
5. Close the cylinder valve and vent the system as follows:
○ Positive-pressure systems: cover and seal the lung demand valve
outlet with the palm
button (Fig 3, Item 3) to activate air flow and then lift the hand to
very slowly vent.
○ Negative-pressure systems:
button (Fig 3, Item 3) to very slowly vent.
6. The whistle on the PAS ® Colt pressure reducer must commence in the
range 110 to 100 bar.
7. Positive-pressure systems: press the reset button (Fig 3, Item 2) to
switch off the valve.
8. Open the PAS ® Colt cylinder valve slowly, but fully, to pressurize the
system. The whistle will stop.
9. Connect the independent
coupling (Fig 1, Item 4). If the independent air supply has a shut-off
valve, open the valve. The PAS
Draeger Safety UK Limited
Ullswater Close
Blyth, NE24 4RG
United Kingdom
® Colt pressure reducer will briefly
of the hand. Press the front
carefully press the front
air supply to the male
® ASV whistle will briefly sound to
Tel +44 1670 352 891
Fax +44 1670 356 266
www.draeger.com
3360044 (A3-D-P) Page 1 of 3