Sundstrom SR 200 Technical manual

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OI03H-1021 SR 200 Airline 1
Operation Instruction
SR 200 Airline
Compressed air-line full face mask
Revision: 02

General information
Instructions for use for SR 200 Airline should be read before use.
The Sundström model number SR 200 Airline is a Type C, Continuous Flow, Supplied Air Respirator (CF/ SA).
SR 200 Airline has been tested and approved by NIOSH to provide the approved level of respiratory protection
to a user.
SR 200 Airline is a compressed air full face mask with filter back-up in accordance to NIOSH approval label.
When selecting equipment for SR 200 Airline some of the factors that should be considered are as follows:
• Type of pollutant
• Concentrations
• Work intensity
• Protection requirements in addition to respiratory protective advice
Risk analysis should be carried out by a person who has suitable training and experience in the area.
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Breathable air
Breathable air shall conform to the requirements of CGA G-7.1 Grade D or higher quality.
In the event of uncertainty as to whether the above demands have been met, a filter such as the Sundström
type SR 99-1 compressed air filter should be connected.
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Unpacking SR 200 Airline
Packing list:
• Facepiece with breathing hose
• Control valve
• Belt
• Sealing plug
• Sealing cover
• Pre-filter holder
• Flow meter
• Filter adapter
• User instructions
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1. Check before use
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1.1 Check that the mask is
complete, correctly
assembled, thoroughly
cleaned and undamaged.
Check particularly carefully
the inhalation and exhalation
membranes and their seats.
The membranes are
consumables and must be
replaced if there are any
signs of damage or ageing.
1.2 The membranes are
consumables and must be
replaced if there are any
signs of damage or ageing.
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.
1.3 Check that the seal at the
bottom of the filter connection
is in good condition.

1. Check before use
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1.4 Check that the air flow -
measured through the mask -
is at least 5.3 CFM (150 l/min)
Connect the breathing hose of
the mask to the control valve.
1.5 Connect the compressed
air supply tube to the control
valve.
1.6 Turn the control valve
knob anti-clockwise as far as
it will go, in order to throttle
the air flow rate to a
minimum.

2. Functional check
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2.1 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.
2.2 Read the position of the
ball in the tube. It should float
level with or just above the
marking on the tube 5.3 CFM
(150 l/min).
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.

3. Filter
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3.1 Check that you have
selected the correct filter.
3.2 In environments in which
both gases and particles
occur, such as in spray
painting, gas and particle
filters must be combined.
3.3 Place the particulate filter
on top of the cartridge. Grasp
both protective elements.
Squeeze hard until you hear
the particle filter snap onto
the gas filter.
3.4 Place a coin it in the
space between the lower lip
of the particulate filter and the
small tab moulded into the
side of the gas filter.
Push firmly and twist the coin
until the filter pops off.

4. Putting the equipment on
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4.1 Put the belt on and adjust
the length.
4.2 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.
4.3 Filter
If the equipment is to be used
with a back-up filter, mount
the supplied adapter in the
filter mounting and fit the filter

5. Mask –Tightness check
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Check the fit of the mask if you intend to use a back-up filter.
If any leakage is detected, check the inhalation and exhalation valves
or adjust the straps of head harness. Repeat the fit check until there
is no leakage.
Leakage may occur in cases such as if you wear a beard or
sideboards or if your face is unshaven or deeply wrinkled, if you wear
glasses, or if the exhalation valves are defective or dirty.
5.1 Blank off the filter by
using the sealing cover.
5.2 Draw a deep breath and
hold your breath for ten
seconds.
If the fit is good, the mask will
be pressed against your face.

6. Breathing hose/compressed air hose
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6.2 Unroll the compressed air
hose and make sure that it is
not twisted.
Connect the hose to the
control valve inlet.
6.1 Connect the breathing
hose to the control valve
outlet.

7. Mask - Fitting
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7.1 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.
7.2 Move the head harness
upwards, place your chin in
the facepiece chin support,
and pull the head harness
over your head.
7.3 Tension the elastic straps
in pairs by pulling the free
strap ends towards the rear.
7.4 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.

8. Airflow rate
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8.1 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 5.3 CFM
(150 l/min). In the fully open position
(turn the knob clockwise), the flow is
about 13.8 CFM (390 l/min).

9. Taking the facepiece off - When using a back-up filter
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9.1 Remove the sealing
cover, if fitted.
9.2 Disconnect the
compressed air hose from the
control valve.
Leave the polluted work area
and take the equipment off.
9.3 Slacken the four elastic
straps in pairs by moving the
strap holders forward. The
two inelastic straps need not
be released.
9.4 Pull the head harness
forward over your head and
remove the mask.

10. Taking the facepiece off - When using the sealing plug
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10.1 Disconnect the
compressed air hose from the
control valve.
Leave the polluted work area
and then take the equipment
off.
10.2 Slacken the four elastic
straps in pairs by moving the
strap holders forward. The
two inelastic straps need not
be released
10.3 Pull the head harness
forward over your head and
remove the mask.

11. Releasing the compressed air hose / breathing hose
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11.1 Both couplings are of
safety type and are released
in two stages.
Push the coupling towards
the nipple.
11.2 Pull the locking ring
back.
11.3 Push the coupling
towards the nipple.
11.4 Pull the locking ring
back.

12. Change the visor
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12.1 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 a 2.5 mm Allen key to
remove the two screws
holding the frame halves
together.
12.2 Carefully remove the
upper frame half.
Carefully prise the top part of
the mask off the visor and
remove the visor from the
lower groove.
12.3 Take this opportunity to
clean the groove, if necessary
Change a glass visor, SR 365
Take great care to ensure that the visor is located accurately so that
the centre markings on the visor, frame and mask are in line.
This will prevent subjecting the visor to stresses that could lead to its
damage. To make assembly easier, it is important that the grooves in
the mask and frame should be abundantly coated with a rich soap
solution or with a similar liquid.

Change the visor
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12.4 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.
12.5 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.
12.6 Prise the upper frame
half, making sure the centre
markings are in line.
12.7 Fit the screws and
tighten them alternately until
the two halves of the frame
are firmly in contact. Carry
out leakage testing.

13. Change the inhalation membranes
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13.1 One membrane is in the
centre of the inner mask on a
fixed dowel. Prise off the
membrane and fit a new
membrane.
13.2 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.
13.3 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.
13.4 Prise the new
membranes onto the new
dowels.

14. Change the exhalation membranes
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14.1 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.
14.2 Prise off the
membranes.
14.3 Press the new
membranes onto the dowels.
Carefully check that the
membranes are in contact
with the valve seats all round.
14.4 Press the valve covers
into place. A clicking sound
indicates that the cover has
snapped into place. Carry out
a negative fit check.