Sundstrom SR307 Technisches Handbuch

2020-04-16

OI03H-1418 SR 307 1

SR 307

Compressed air attachment

Revision: 03

Operation instruction

General information

Instructions for use for SR 307 should be read before use.

The Sundström SR 307 compressed air attachment can be used together with Sundström half masks, and

with full masks of all makes with standard thread in accordance with EN 148-1:1999.

This combination then forms a breathing apparatus with continuous air flow for connection to a compressed air

supply in accordance with EN 14594:2005 and AS/NZS 1716:2012.

Use of a respirator must be part of a respiratory protection program.

For advice see EN 529:2005 or AS/NZS 1715:2009. The guidance contained in these standards highlights

important aspects of a respiratory protective device program but does not replace national or local regulations.

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OI03H-1418 SR 307 2

Breathable air

Breathable air shall meet at least the following purity requirements according to EN 12021:2014:

• the pollutants must be maintained at a minimum and must never exceed the hygienic limit value

• the content of mineral oil shall be so low that the air will have no oil smell (the threshold of smell is around

0.3 mg/m3)

• the air shall have a sufficiently low dew point to ensure that no internal freezing will take place in the

equipment.

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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OI03H-1418 SR 307 3

Unpacking

Packing list

• Connection adapter with hose

• Control valve

• Belt

• Locking ring

• Flow meter

• User instructions

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OI03H-1418 SR 307 4

1.Functional check

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OI03H-1418 SR 307 5

1.1 Check that the minimum

flow of air through the adapter

is about 150 l/min. Proceed

as follows:

Connect the breathing hose

to the control valve.

1.2 Connect the compressed

air hose to the control valve.

1.3 Turn the control valve

knob anticlockwise as far as it

will go in order to throttle the

air flow rate to a minimum.

1.Functional check

2020-04-16

OI03H-1418 SR 307 6

1.4 Place the equipment in

the bag and grip the lower

part of the bag so that the

bag seals around the

breathing hose. Grip the flow

meter with the other hand and

hold it so that the tube points

vertically up from the bag.

1.5 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 ball can move freely

• the air supply is not restricted by kinks or other restrictions in the

hoses.

2.Putting the equipment on

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OI03H-1418 SR 307 7

2.1 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.

2.2 Then fit the connection

adapter of the compressed air

attachment to the face piece.

2.3 In combination with a full-

face mask, the locking ring

should always be used for

securing the mounting of the

connection adapter.

2.Putting the equipment on

2020-04-16

OI03H-1418 SR 307 8

2.4 Connect the breathing

hose of the compressed air

attachment to the control

valve outlet.

2.5 Connect the tube to the

control valve inlet. The face

piece 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 face piece

you are using.

2.6 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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OI03H-1418 SR 307 9

3.1 Leave the polluted work

area before taking the

equipment off.

Remove the face piece.

Both couplings are of safety

type and are released in two

stages.

1. Push the coupling

towards the nipple.

3.2

2. Pull the locking ring

back.

3.Taking the equipment off

4.Cleaning

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OI03H-1418 SR 307 10

The SR 307 should be cleaned in the following manner: Use a piece

of soft cloth or a sponge dipped in a solution of water and

dishwashing detergent or the like. Rinse and leave to dry. In the event

of more serious soiling, white spirit or similar degreasing agent may

be used. Then wash with dishwashing detergent solution, rinse and

leave to dry. Sundström cleaning wipes SR 5226 are recommended

for daily care.

For particulars of cleaning of the Sundström half mask and full mask,

see the appropriate user instructions.

Sundström cleaning wipes

SR 5226 can be used for

daily cleaning.

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