Sundstrom SR540 Manual de usuario

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Operating instruction

SR 540 Face Shield

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General information

The SR 540 Face Shield can be used together with the SR 500

Powered Air-Purifying Respirator system of components to provide

respiratory protection against certain particulates, organic vapours,

acid gases and other inorganic gases.

Refer to the NIOSH Approval Label for a list of approved

components and NIOSH cautions and limitations. Before use, these

user instructions and those for the SR 500 PAPR, cartridges, filters

and compressed air attachment must be thoroughly studied and

understood.

Breathing air is supplied to the respiratory protection inlet covering

(e.g. hood, face shield) from a breathing hose connected to the fan

unit containing the appropriate canisters or filters. The pressure

generated in the face shield prevents particles and other pollutants

from entering.

The respiratory protection inlet coverings can also be used with

compressed air equipment. This combination forms a breathing

apparatus designed for continuous air flow from a compressed air

supply.

The face shield can be used in all situations for which an air-

purifying respirator is recommended. This applies particularly to

work that is hard, warm or of long duration.

When selecting equipment for SR 540 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 540 should be read before use.

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3.1 Unpacking SR 540

3.2 Packing list

Check that the respiratory protection

inlet covering is complete in accordance

with the packing list and has not been

damaged in transit. Locate the User

Instructions and read and understand

prior to attempting to use the product. If

damage is evident or if technical support

is needed contact your supervisor,

respirator program manager, User

Instructions, or for technical support call

Sundström in the U.S.A. and Canada

at 1- 877- SUNDSTROM. Check that

the equipment is complete in

accordance with the packing list and

has not been damaged in transport.

Packing list:

•Face shield

•Breathing hose

•Visor

•User Instructions

•Cleaning tissue

3.3 Assembly

Check that the O-ring of the hose is in

place.

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Check that the flat gasket is ok and in

place at the other end.

Connect the end with the flat gasket to

the face shield.

Turn it clockwise about 1/8 of a turn.

The hose is now connected to the face

shield.

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Connect the hose to the fan unit and turn

it clockwise about 1/ 8 of a turn.

Flow control

Place the head top in the flow meter and

start the fan unit.

Grip the lower part of the bag to seal

around the breathing hose.

Grip the flow meter tube with the other

hand so that the tube points vertically

upwards from the bag.

Read the position of the ball in the tube.

This should hover at a level with or

slightly above the upper marking on the

tube.

If minimum flow is not achieved,

check that:

– The flow meter is held upright.

– The ball moves freely.

– The bag seals well around the hose.

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4.3 Donning the face shield

Raise the visor and put the face shield

on.

If necessary, adjust the head harness in

height by lengthening or shortening the

strap for the top of the head.

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If necessary, adjust the circumference of

the head harness by means of the knob

at the rear of the head harness.

Lower the visor unit by pulling the face

seal down under your chin.

A clicking sound indicates that the visor

unit has been lowered fully.

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Insert a finger between your chin and the

face seal and run the finger along the

contact surface of the face seal all the

way round to check that it fits well

against the face.

Check that the breathing hose runs

along your back and that it is not twisted.

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4.4 Doffing the face shield

Leave the polluted area before removing

the respiratory protection inlet covering

and SR 500 PAPR fan unit.

Take off the respiratory inlet covering.

Switch off the fan.

Release the belt and remove the fan

unit.

After use, the SR 500 components must

be cleaned, inspected and prepared for

reuse (e.g. charge the batteries).

6 Maintenance

6.1 Cleaning/Disinfecting

Sundström cleaning tissues SR 5226

that clean and disinfect are

recommended for daily care.

Clean face shield and visor

If the equipment is more heavily fouled,

use a soft brush or sponge moistened

with a solution of water and dishwashing

detergent or the like.

Rinse the equipment and leave it to dry.

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Clean left and right closing panel.

Clean the valve seat and check that the

valve seat is ok.

Clean the exhalation membrane.

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