Sundstrom SR500EX Bedienungsanleitung

Companion module:

Sundström SR500ex PAPR —HOW TO…

Related material:

Sundström filters

About your SR500ex PAPR:

What is it?

The SR500ex is a PAPR, which stands for

Powered Air-Purifying Respirator.

Powered means battery-driven.

Air-purifying means filtering.

Respirator means that your lungs are separated

from the surrounding contaminated

atmosphere.

ex means that the PAPR is certified as

intrinsically safe, that is, it can be used in many

potentially explosive or flammable atmospheres.

How does it work?

A battery-driven fan draws in the surrounding air

through a pair of filters that clean the air from

harmful substances. The clean air is then

delivered to a face piece or air hood around your

face or head.

The air pressure inside the mask or hood is

higher than the surrounding air, which means

that outside air cannot leak into the head piece.

Components

The SR500ex PAPR is made up of three main

parts:

•The fan unit with filters, motor, fan, and

a waist belt.

•The breathing hose that delivers the

cleaned air to your face.

•The head piece, usually the SR540ex

intrinsically safe head-top. Other EX-

certified face shields and helmets may

also be used, along with the SR200 tight-

fitting full-face mask.

IMPORTANT: when selecting suitable filters and

head pieces, certain factors must be taken into

consideration. It is best to consult a qualified

person with training and experience in risk-

assessment. Crucial factors include:

•Types of contaminants

•Concentrations

•Work load and breathing rate*

•Explosive or flammable atmosphere

•Other types of safety equipment that

may be required

*) The breathing rate is important, because the SR500ex

delivers air at a maximum flow rate of 175 litres per minute

(normal mode) or 225 l/min (boost mode). If you are using a

loose-fitting head piece, and your peak inhalation air flow is

greater than the supply rate, outside air will leak into the

head piece.

Where can the SR500ex be used?

The SR500ex PAPR can be used wherever

negative-pressure filter respirators are allowed

or recommended, including potentially explosive

environments.

Because the fan unit helps to draw air through

the filters, and because it delivers the air at

pressure to the face and lungs, the PAPR is

particularly suited for situations where work is

hard, warm or long-term.

The battery

•Lithium-ion battery

•Can be recharged at least 500 times

•Available as standard (2.2 Ampere

hours) or heavy duty (3.6 Ah)

•Can be recharged at any time —no need

to wait until completely drained

•Charging time: less than 2 hours

The fan unit

•Operating time up to 13 hours

•Single-button operation

•Normal speed (175 litres/minute) and

boost speed (225 l/min)

•Visual display panel shows normal/boost

operation, disrupted air flow, low

battery power

•Additional vibration and sound alarms

•Automatic air flow control

•Can be used with a variety of head

pieces

Particle filter

•Class P3 high-efficiency particle filter

•Available as threaded filter that screws

directly into the fan unit, or as non-

threaded through a filter adapter

•The non-threaded particle filter can be

fitted to the front of all gas filters

Gas filters

Several types of gas filters are available:

•A2 (organic vapour)

•ABE1 (organic vapour, inorganic vapour,

acid gas)

•A1BE2K1 (organic vapour, inorganic

vapour, acid gas, ammonia)

•A1BE2K1-Hg-P3 (organic vapour,

inorganic vapour, acid gas, ammonia,

mercury vapour + particles)

IMPORTANT: There are two filter ports. Identical

filters or filter combinations must be fitted to

both filter ports. You must not fit one type of

filter to one port, and another type of filter to

the other.

When should the SR500ex respirator NOT be

used?

•When the fan motor is turned off for any

reason

•If there is not enough oxygen for human

breathing in the ambient atmosphere

•If the contaminant is unknown

•If the contaminant is Immediately

Dangerous to Life and Health (IDLH)

•If the ambient atmosphere is oxygen-

enriched or pure oxygen

•If breathing becomes difficult

•If you can smell or taste any

contaminant

•If you feel dizzy or nauseous, or suffer

any discomfort

Before using the respirator:

•Make sure the SR500ex PAPR and all its

parts are clean, intact, and correctly

assembled

•Make sure the appropriate filters are

fitted to the fan unit

•If gas filters are used, particle filters

must be fitted to the front of each gas

filter

•A pre-filter must be attached to each

particle filter

•Make sure the battery is fully charged

•Do a performance check and test the

alarms

•Make sure you are familiar with the

equipment and know how to use it

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