Sundstrom SR 900 Bedienungsanleitung

2020-10-05

OI01H-3021 SR 900 1

Operating Instruction

SR 900

Half mask APR

Revision: 03

General information

Instructions for use for SR 900 APR should be read before use.

Together with filters from the Sundström filter range in accordance with the NIOSH approval label.

Three sizes S, M and L.

Together with powered air-purifying respirator SR 500 PAPR in accordance with NIOSH approval label.

Together with Remote filter holder SR 905 according to NIOSH approval label.

When selecting equipment for SR 900 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.

2020-10-05

OI01H-3021 SR 900 2

Unpacking SR 900

Check that the equipment is complete in accordance

with the packing list, and that no transport damages

have occurred.

Packing list:

• Half mask

• Pre-filter

• Pre-filter holder

• Cleaning tissue

• ID-tag

• User instructions

• Storage bag

2020-10-05

OI01H-3021 SR 900 3

1. Filter

2020-10-05

OI01H-3021 SR 900 4

1.1 Check that you have

selected the correct filter.

1.2 During work in

atmospheres containing both

particles and gases/vapors

(such as spray painting) the

particulate filter and chemical

cartridge should be

combined.

1.3 Place the P100 filter on

top of the cartridge. Grasp

both protective elements.

Squeeze hard until you hear

the P100 snap onto the

cartridge a snap.Attempt to

pull the filter and cartridge

apart to check that they are

properly connected.

1.4 Place a coin it in the

space between the lower lip

of the particulates filter and

the small tab molded into the

side of the cartridge.

Push firmly and twist the coin

until the filter pops off.

2020-10-05

OI01H-3021 SR 900 5

1.5 Fit the filter/combined

filter in the mask so that the

arrows on the filter point

towards the user’s face.

Carefully check that the edge

of the filter is in the internal

groove of the filter mounting

all around

1.6 Fit pre-filter SR 221 in the

pre-filter holder.

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 P100.

1.7 Press it into place on the

filter.

1. Filter

2. Donning

2020-10-05

OI01H-3021 SR 900 6

2.1 Remove any hood,

glasses or ear protection from

head.

Holding the strap buckle, pull

the strap over your head and

put it around your neck.

Grab the pad or cradle with

one hand and the filter or

cartridge with the other.

2.2 Hold the mask against

your face.

Pull the pad or cradle over

your head and place it on the

crown of the head.

2.3 Wiggle the respirator until

it fits comfortably.

Perform a fit check.

3. Adjusting the harness

2020-10-05

OI01H-3021 SR 900 7

3.1 Reach behind your neck

and grab the free end of the

harness strap.

3.2 Pull the free end away

from the neck until buckle

pops open.

3.3 Pull on the free end of the

strap until the respirator seats

comfortably on your face.

Use your thumb and

forefinger to squeeze the

buckle shut.

3.4 Wiggle the respirator until

it seats comfortably.

4. Negative Fit check

2020-10-05

OI01H-3021 SR 900 8

4.1 Install a protective

element.

Snap the pre-filter holder onto

the protective element.

Put the mask on.

4.2 Place the palm of your

hand lightly over the hole on

the pre-filter holder to make it

tight. Take a deep breath and

hold your breath for about 10s.

If the mask is tight, it will be

pressed against your face.

If any leakage is detected:

• check the exhalation membranes, exhalation valves and the gasket,

• adjust the straps of head harness,

• switch to alternative size of the respirator.

Do not use the equipment if you cannot make the mask a tight fit

during the fitting test.

Note! Beard growth, scars, or other physical characteristics may

interfere with a proper fit of the respirator.

5. Change the exhalation membrane

2020-10-05

OI01H-3021 SR 900 9

5.1 Snap the valve covers off

the membrane seats.

5.2 Prise off the membranes.

5.3 Press the new membrane

onto the pin. Carefully check

that the membrane is in

contact with the membrane

seat all round.

5.4 Press the valve covers

into place.A clicking sound

indicates that the cover has

snapped into place..

6. Change the inhalation membrane 7. Change the head harness

2020-10-05

OI01H-3021 SR 900 10

6.1 Reach inside the

respirator and gently pull out

the inhalation membrane.

6.2 Check the edge of the

inhalation valve. Gently

stretch the flap until it slips

over the stud.

7.1 Detach the head harness

from the mask.

7.2 Attach the head harness

to the mask.

Andere Handbücher für SR 900

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