Sundström PAPR SR500ex

powered air purifying respirator — intrinsically safe

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			The intrinsically safe Sundström SR500ex powered air purifying respirator designed and approved for use in explosive or ignitable atmospheres. It is an alternative to negative-pressure filter respirators in situations where these are recommended. The fan-assisted air flow may be of benefit during extended periods of work in warm conditions. The fan can be used with most Sundström hoods, face shields or full face masks. It is important to understand that the entire SR500ex system and its individual parts have been certified as intrinsically safe. Click HERE for important information
			Several hoods and shields/helmets are available, plus connection to full face masks (click on picture for full product information)

Description:

Intrinsically safe (i.e. for use in explosive or ignitable atmospheres) battery-powered, fan-assisted air-purifying respirator that can be used as an alternative to negative-pressure filter respirators where these are recommended. This applies particularly to extended periods of hard work in warm conditions.

The fan can be used with certain Sundström hoods, face shields or full face masks. The fan unit is fitted with a suitable filter, and the filtered air is fed through a hose to the facepiece.

Product name:

Sundström SR500ex intrinsically safe powered air purifying respirator

Features:

Intrinsically safe
Single-button operation
Visible and audible alarms in case of interrupted air delivery
NiMh battery
Up to 6.5 hours' operation
Approximately 2 hours' recharge time
Supplied with 2 filters/cartridges/combinations
Can be used with hoods (SR520, SR530, SR561, SR562), shield SR540ex, or full face mask SR200

Visual display:

Normal operation
Boost fan operation
Dip in air flow/clogged particle filters
Battery low
Air flow obstruction

Air flow rate:

175 l/min (normal operation)
225 l/min (boost fan operation)

Temperature range:

Operation: –10°C to +40°C (14°F to +104°F) at <90% relative humidity
Storage: –20°C to +40°C (–4°F to +104°F) at <90% relative humidity

Low flow warning:

<175 l/min

Filter thread:

Rd 44 x 1/7"

Weight:

With battery and P3 particle filter: 1,840 g (4.05 lbs)

Protection factors:

With hoods and shield: 200 (TH3)
With full face mask: 1,000 (TH3)

Intrinsically safe classification (EN standard):

II 2 G Ex ib IIA T3 (with SR540 shield or SR200 full face mask with polycarbonate visor)

II 2 G Ex ib IIB T3 (with SR520, SR530, SR561, SR562 or full face mask SR200 with glass visor)

II 2 D Ex ibD 21 T195°C (with any of the above)

(Explanation of classification markings:)

	Symbol for risk of explosion
II	Equipment group (explosive atmosphere other than mines)
2 G	Equipment category (2=high protection level, zone 1, G=gas)
2 D	Equipment category (2=high protection level, zone 21, D=dust)
Ex	Explosion protected
ib/ibD	Type of ignition protection (intrinsic safety)
IIA	Explosion group Propane
IIB	Explosion group Ethylene
21	Zone with combustible dust
T3	Temperature class, gas (+200°C max, surface temperature)
T195°C	Temperature class, dust (+195°C max, surface temperature)

IMPORTANT:

The Sundström SR500 is a PAPR (Powered Air Purifying Respirator)

It is a positive-pressure respirator at work requiring less than 225 l/min peak air flows

At higher work rates, the SR500 may provide extra comfort, but NOT positive-pressure protection, and will therefore rely on face seal (provided you have a tight-fitting face piece)

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