Sundstrom SR 200 Gebrauchsanleitung Seite 19

2.3.1 Particle filters
The Sundström particle filter traps and holds particles in
the filtering media. As the amount of the captured con-
taminant in the media increases, breathing resistance also
increases. Replace the filter after 2 – 4 weeks or sooner
if breathing resistance becomes noticeable. Filters are
consumables with a limited service life. A filter exposed
to strong press or impact or with visible damage must
immediately be scrapped.
2.3.2 Gas filters
Each gas filter is designed to provide respiratory protec-
tion against specific contaminants. A gas filter absorbs
and/or adsorbs specific vapours and gases from a
contaminated atmosphere. This process continues
until the absorbent becomes saturated and allows the
contaminant to break through.
We recommend that the gas filter/combined filter should
be changed in accordance with the results of measure-
ments carried out at the worksite. If this is impossible,
change the filter every week or earlier if you can smell
or taste the pollutants or if you experience any other
discomfort.
A filter exposed to strong press or impact or with visible
damage must immediately be scrapped.
2.3.3 Combined filters
In environments in which both gases and particles occur,
such as in spray painting, gas and particle filters must
be combined.
• Place the particle filter on top of the cartridge. Grasp
both protective elements.
• Squeeze hard until you hear the particle filter snap
onto the gas filter. Fig. 1a.
• Place a pre-filter into the pre-filter holder.
• Snap the pre-filter holder on the filter or cartridge.
Note. The particle filter will always be snapped on the gas
filter, but the gas filter will not snap onto the particle filter.
The gas filter will always be inserted into the respirator.
Note. Particle filter SR 610 cannot be combined with
a gas filter.
To separate the combined gas- and particle filter
• Place a coin it in the space between the lower lip of
the particle filter and the small tab moulded into the
side of the gas filter.
• Push firmly and twist the coin until the filter pops off.
Fig 1b.
2.3.4 Pre-filter SR 221
The Sundström pre-filter SR 221 is not a protective ele-
ment and can never be used as primary protection or as
a substitute for a particle filter. It is designed to prevent
nuisance particles from reaching the filters. This increases
the life span of the primary filter. The pre-filter holder
protects the main filter against handling damage.
2.4 Compressed air attachment/fan unit
When the SR 200 with compressed air attachment SR 307
or fan units SR 500 or SR 500 EX is used, the user instruc-
tions for the relevant equipment must be followed.
3. Donning/Doffing
3.1 To fit the filter in a mask
• Check that you have selected the right filter and that
the use-by date has not been passed. (Specified on
the filter and is valid provided that the filter packaging
is unopened.)
• Check that the filter is in good condition and intact.
• Fit the filter/combined filter in the mask so that the
arrows on the filter point towards the user's face. Care-
fully check that the edge of the filter is in the internal
groove of the filter mounting all around.
• Fit pre-filter SR 221 in the pre-filter holder and press
it into place on the filter.
See also the user instructions for the relevant filter.
3.2 Inspection before use
• Check that the mask is complete, correctly assembled
and thoroughly cleaned.
• Check the mask body, membranes, valve seats and
head harness for wear, cuts, cracks, missing parts,
and other defects.
• Check that the appropriate filter is intact and installed
properly.
3.3 Putting the mask on
• Fit the filter.
• Slacken the four elastic straps by moving the strap
holders forward, at the same time pulling the straps.
Fig. 2.
• Slacken the upper two inelastic straps by opening the
buckles.
• Move the head harness upwards, place your chin in
the facepiece chin support and pull the head harness
over your head. Fig. 3.
• Tension the elastic straps in pairs by pulling the free
strap ends towards the rear. Fig. 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.
3.4 Fit check
Use the airtight test disc SR 322 supplied to check
whether the mask is tight.
• Place the disc in the pre-filter holder and fit the holder
to the filter.
• Put the mask on.
• Take a deep breath and hold your breath for about 10
s.
If the mask is tight, it will be pressed against your face.
The test disc is intended for use only for facial fit testing
under test conditions. It must not be used under real
work conditions.
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