Sundstrom SR 200 User manual

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Operating instruction
SR 200 Airline

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General information
The Sundström SR 200 Airline is a breathing apparatus that is
supplied with a continuous flow of air and is designed for
connection to a compressed air supply in accordance with
EN 14594:2005 class 4A/4B.
The unique feature of the SR 200 Airline is the scope it provides for
filter back up.
SR 200 can be used in three different configurations.
In application with filters from Sundström in accordance with
EN 136:1998.
In application with fan unit SR 500 or SR 700 in accordance with
EN 12942:1998 class TM3.
SR 200 Airline is a compressed air full face mask with filter backup.
When selecting equipment for SR 200 Airline some of the factors
that should be taken into account are as follows:
•Type of pollutant
•Concentrations
•Work intensity
•Protection requirements in addition to respiratory protective advice.
Risk analysis should be carried by a person who has suitable
training and experience in the area.
Instructions for use for SR 200 Airline should be read before use.

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2.1 Unpacking SR 200 Airline
2.2 Packing list
Check that the equipment is complete in
accordance with the packing list and
that no transport damage has occurred.
Packing list:
• Facepiece with breathing hose
• Control valve
• Belt
• Sealing plug
• Sealing cover
• Pre-filter holder
• Flow meter
• Filter adapter
• User instructions
2.3 Functional check
Check before use
Check that the mask is complete,
correctly assembled, thoroughly
cleaned and undamaged.
Check particularly carefully the
inhalation…

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…and exhalation membranes and their
seats.
The membranes are consumables and
must be replaced if there are any signs
of damage or ageing.
The membrane in the air distributor
need not be replaced.
Check that the seal surface at the
bottom of the filter connection is clean
and undamaged.

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Check that the seal at the bottom of the
filter connection is in good condition.
Check the condition of the head
harness.
The head harness is a consumable
item and should be replaced if there are
any signs of wear or reduced elasticity.
Check that the air flow - measured
through the mask - is at least 150 l/min.
Connect the breathing hose of the
mask to the control valve.
Connect the compressed air supply
tube to the control valve.

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Turn the control valve knob
anti-clockwise as far as it will go, in
order to throttle the air flow rate to a
minimum.
Place the facepiece in the bag and grip
the opening of the bag so that it seals
around the breathing hose.
Grip the flow meter with the other hand
and hold it so that it points vertically up
from the bag.
• Read the position of the ball in the
tube. It should float level with or just
above the marking on the tube.
If the flow rate is below the minimum
value, check that
• The flow meter is vertical.
• The float can move freely.
• The air supply is not restricted by
kinks or other restrictions in the hoses.

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2.4 Putting the equipment on
Belt with control valve
Put the belt on and adjust the length.
Arrange the control valve in a way that
allows easy adjustment of the flow rate
and a strict watch over the breathing
hose, i. e. it must not be placed on the
back of the waist.

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Filter
During work in atmospheres containing
both particulates and gases/vapours
(such as spray painting) the particulate
filter and chemical cartridge should be
combined.
Press the filter/cartridge together so that
the arrows on the particulate filter point
towards the chemical cartridge.
Fit the filter/combined filter in the face
piece so that the arrows on the filter
points towards the user’s face.
Carefully check that the edge of the filter
is in the internal groove of the filter
mounting all round.

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Pre-filter prevents premature clogging of
the main filter. The pre-filter holder
prevents damage to the main filter.
N.B. The pre-filter is a pre-filter only,
and cannot be used as a substitute for
particulate filter.
Turn the filters into the face piece.
Screw until the thread reaches the seal
at the bottom of the filter connection,
then another 45 degrees.
Face piece –Tightness check
Check the fit of the mask if you intend
to use a back-up filter:
• Blank off the filter by using the sealing
cover.

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• Hold the face piece firmly in place,
raw a deep breath and hold your breath
for ten seconds.
• If the fit is good, the mask will be
pressed against your face.
• Leakage may occur in cases such as
if you wear a beard or sideboards or if
your face is unshaven or deeply
rinkled, if you wear glasses, or if the
exhalation valves are defective or dirty.
Putting the equipment on
Unroll the compressed air hose and
make sure that it is not twisted.
Connect the hose to the control valve
inlet.
The mask is now being supplied with
air and you can put it on.
Then adjust the harness so that the
face piece is held firmly but comfortably
in place.
See the user instructions for the mask
you are using.
Connect the breathing hose to the
control valve outlet.

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Mask - Fitting
Remove any hood, glasses or ear
protection from head.
Slacken the four elastic straps by
moving the strap holders forward, at the
same time pulling the straps.
Slacken the upper two inelastic straps
by opening the buckles.
Move the head harness upwards, place
your chin in the face piece chin support
and pull the head harness over your
head.

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Tension the elastic straps in pairs by
pulling the free strap ends towards rear.
Adjust the fit of the mask on your face,
so that it fits firmly but comfortably.
Adjust the lengths of the upper pair of
straps and fix by means of the buckles.
Perform a fit check
Airflow - rate
Use the control valve knob to set the air
flow rate to suit your current work
intensity.
In the fully closed position (turn the
knob anti-clockwise), the flow is about
150 l/min, and in the fully open position
(turn the knob clockwise), it is about
320 l/min.

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2.5 Taking the facepiece off
When using backup-filter
Remove sealing cover if fitted.
Disconnect the compressed air hose
from the control valve.
Leave the polluted work area and take
the equipment off.
Slacken the four elastic straps in pairs
by moving the strap holders forward.

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Pull head harness forward over your
head and remove the mask.
When using the sealing plug
Leave the polluted work area and then
take the equipment off.
Slacken the four elastic straps in pairs
by moving the strap holders forward.
Pull head harness forward over your
head and remove the mask.

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Releasing the compressed air tube / breathing hose
Both couplings are of safety type and
are released in two stages.
Push the coupling towards the nipple.
Pull the locking ring back.
Cleaning
Sundström cleaning tissues (SR 5226)
which clean and disinfect are
recommended for daily care. If the mask
is heavily soiled, use a warm
(up to 40 °C), mild soap solution and a
soft brush, followed by rinsing with clean
water and drying in air at room
temperature.

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Proceed as follows:
Remove the adapter/filter.
Remove the covers for the exhalation
valves and remove the membranes
(two)
Remove the inhalation membranes
(three)
Remove the head harness.
If necessary, remove the visor.
Clean as described above. Critical
areas are the exhalation membranes
and the valve seats which must have
clean and undamaged contact
surfaces.
Inspect all parts and replace with new
parts if necessary.
Leave the mask to dry, and then
assemble it.
Carry out leakage testing
N.B. Never use solvent for cleaning

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4.2 Storage
Store the equipment in Sundström
storage box SR 344 in temperature
from -20 °C to +40 °C.
4.3 Maintenance schedule
The schedule shows the minimum
requirements on maintenance routines,
so that you will be certain that the
equipment will be in usable condition.
4.4.2 To change the visor
The visor is mounted in a groove
running around the visor opening of the
outer mask and is held in place by one
upper and one lower frame half.
Use 2.5 mm Allen key to remove the
two screws holding the frame halves
together.
Carefully remove the upper frame half.

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Carefully prise the top part of the mask
off the visor, and remove the visor from
the lower groove.
Take this opportunity to clean the
groove, if necessary.
Markings are made to show the centres
of the visor, frame halves and mask.
Press the new visor into the groove,
making sure that the centre markings
are in line.
To make assembly easier, coat the slot
with a soap solution or similar liquid.

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Carefully prise the top half of the face
piece over the visor and make sure that
the visor is in the groove in the mask.
Prise the upper frame half, making sure
the centre markings are in line.
Fit the screws and tighten them
alternately until the two halves of the
frame are firmly in contact.
Carry out leakage testing.

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4.4.3 To change the inhalation membranes (three)
One membrane is in the centre of the
inner mask on a fixed dowel.
Prise off the membrane and fit a new
membrane.
Two membranes are fitted, i.e. one on
each inside of the inner mask. The
dowels for these membranes are
removable and should be changed
whenever the membrane is changed.
Prise off the membrane and dowels.
Prise the new membranes onto the new
dowels.
The membrane should rest on the
larger flange, i.e. thread the dowel with
the membrane from the inside of the
face piece through the valve seat, with
the smaller flange first.
4.4.4 To change the exhalation membranes (two).
The exhalation membranes are
mounted on a fixed dowel on the inside
of the valve covers on each side of the
outer mask.
The covers should be changed
whenever the membranes are
changed.
Snap the valve covers off the valve
seats.