Sundstrom SR 500 Installation instructions

SR 500
Powered Air Purifying Respirator
Fan Unit Assembly User Instructions
Appareil de protection respiratoire à épuration d’air motorisé
Mode d’emploi du ventilateur
Respirador purificador de aire motorizado
Instrucciones de uso del módulo de ventilador
Sundstrom Safety Inc.
143 Maple St. Warwick, RI 02888
Office: 1-401-434-7300 Toll Free: 1-877-SUNDSTROM Fax: [phone]
[e-mail] www.srsafety.com

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IMPORTANT: DO NOT USE this respirator until you completely read and understand this
instruction manual. You are required to inspect the respirator prior to putting it into service.
Please refer to the inspection procedures in this manual. Failure to comply with this warning
may result in personal injury, illness, or death. For Technical Support call Sundström in the
U.S.A. and Canada at 1- 877- SUNDSTROM
IMPORTANT : N’UTILISEZ PAS ce respirateur avant d’avoir entièrement lu et compris ce mode
d’emploi. Vous devez inspecter le respirateur avant de le mettre en service. Veuillez vous
reporter aux procédures d’inspection contenues dans ce manuel. L’inobservation de cet
avertissement peut entraîner la mort, la maladie ou des blessures. Pour obtenir un soutien
technique, appelez Sundström aux É.-U. et au Canada au 1-877-SUNDSTROM
IMPORTANTE: NO UTILICE este respirador hasta que haya leído detenidamente y compren-
dido este manual de instrucciones. Debe inspeccionar el respirador antes de ponerlo en
funcionamiento. Consulte los procedimientos de inspección incluidos en este manual. Si no
se tiene en cuenta esta advertencia, podrían producirse lesiones, enfermedades o incluso la
muerte. Para solicitar asistencia técnica, llame a Sundström en EE. UU. y Canadá al teléfono
1-877-SUNDSTROM.
Please read and save these instructions .............. 3
Illustrations ........................................................... 44
Prière de lire et de conserver............................... 16
Figures .................................................................. 44
Lea y conserve estas instrucciones por favor .... 30
Illustraciones ........................................................ 44
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Contents
1. SR 500 Fan Unit General Description
2. Safety Precautions
2.1. NIOSH Cautions and Limitations
2.2. Warnings and Limitations
3. Unpacking & Parts List
3.1. Unpacking
3.2. Parts List
4. System Description and Use
4.1. Fan Unit
4.2. Belt
4.3. Battery
4.3.1. Description
4.3.2. Storage
4.3.3. Shelf Life & Disposal
4.3.4. Battery Safety
4.4. Respiratory inlet Coverings
4.4.1. Full Facepiece
4.4.2. Alternate Headgear
4.5. Breathing Hose
4.6. Filters /Cartridges
4.7. Performance Check and Flow Meter
4.8. Donning
4.9. Doffing
4.10. Other Accessories
5. Technical Specifications & Sundstrom Contact
Information
6. Maintenance
6.1. Routine use and component replacement
6.2. Maintenacne Schedule
7. Disposal of Fan Unit, Battery, Filters
8. Symbol Key
9. Approvals
10. Sundstrom Contact Information
1. SR 500 Fan Unit General Description
The SR 500 is a battery powered fan unit that,
together with filters/cartridge and an approved
respirator inlet covering (facepiece or headgear) is a
NIOSH 42CFR84 approved powered air-purifying
respirator (PAPR).
The fan unit equipped with filters/cartridge supplies
filtered air at above-atmospheric pressure through a
breathing hose to the facepiece or headgear to
provide respiratory protection against certain
particulates, organic vapors, acid gases and other
inorganic gases. The generated air pressure prevents
pollutants from the surroundings from penetrating into
the inlet coverings.
The SR 500 can be used as an alternative to filter
respirators in all situations for which these are
recommended. This applies particularly to work that is
hard, warm or of long-duration. If you feel uncertain
about the selection and care of the equipment,
consult your work supervisor or get in touch with
Sundström Technical Support.
IMPORTANT: THIS RESPIRATOR IS INTENDED
TO BE USED ONLY IN CONJUNCTION WITH AN
ORGANIZED RESPIRATORY PROTECTION
PROGRAM WHICH COMPLIES WITH THE
REQUIREMENTS OF “PRACTICES FOR RESPIRA-
TORY PROTECTION”, Z88.2-1992 AVAILABLE
FROM AMERICAN NATIONAL STANDARDS
INSTITUTE (ANSI), 11 WEST 42ND STREET, NEW
YORK, N.Y. 10036, OR WITH THE REQUIREMENTS
OF OSHA STANDARD 29 CFR 1910.134 AVAILA-
BLE FROM THE US DEPARTMENT OF LABOR,
OCCUPATIONAL SAFETY AND HEALTH ADMINIS-
TRATION AND/OR OTHER PERTINENT NATIO-
NALLY RECOGNIZED STANDARDS.
NIOSH approval (USA)
The SR 500 is approved in the USA by NIOSH for use
in environments where hazards are known and
characterized; not immediately dangerous to life or
health and oxygen deficiency is not present. The SR
500 respirator components and filtration media must
be used only in the configurations indicated on the
NIOSH Approval Labels. Refer to NIOSH Approval
Label for list of approved components.
2. Safety Precautions
2.1 NIOSH Cautions and Limitations
NIOSH Approval
For a listing of the components of NIOSH approved
Sundström SR 500 Fan Unit System, refer to the
NIOSH approval label. The components of a NIOSH
approved SR 500 Fan Unit powered air purifying
respirator (PAPR) includes:
– Fan Unit
– Approved respirator facepiece or headgear
(respiratory inlet covers)
– Breathing tube
– Battery pack (Lithium-ion)
– Battery charger (Lithium-ion)
– Airflow indicator (flow meter)
– Particulate filter
– Combination particulate filter/chemical cartridge
NIOSH Cautions and Limitations
A – Not for use in atmospheres containing less than
19.5 percent oxygen.
B – Not for use in atmospheres immediately dangerous
to life or health.
C –Do not exceed maximum use concentrations
established by regulatory standards.
F– Do not use powered air-purifying respirators if
airflow is less than four cfm (115 lpm) for tight fitting
facepieces or six cfm (170 lpm) for hoods and/or
helmets.
H– Follow established cartridge and canister change
schedules or observe ESLI to ensure that cartridge
and canisters are replaced before breakthrough
occurs.
I– Contains electrical parts which have not been
evaluated as an ignition source in flammable or
explosive atmospheres.
J– Failure to properly use and maintain this product
could result in injury or death.
L– Follow the manufacturer’s User’s Instructions for
changing cartridges, canister and/or filters.
M– All approved respirators shall be selected, fitted,
used, and maintained in accordance with MSHA,
OSHA, and other applicable regulations.
N– Never substitute, modify, add, or omit parts. Use
only exact replacement parts in the configuration as
specified by the manufacturer.
O– Refer to User’s Instructions, and/or maintenance
manuals for information on use and maintenance of
these respirators.
P– NIOSH does not evaluate respirators for use as
surgical masks.

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S– Special or critical User’s Instructions and/or specific
use limitations apply. Refer to User’s Instructions
before donning.
FF– Respirators are to be fit tested prior to use with the
heaviest cartridges, canisters, filters and/or
accessories intended to be used. Fit testing should
also be conducted while wearing all personal
protective equipment intended to be used. See
User’s Instructions for fit test instructions.
S-Special or Critical User’s Instructions
The SR 500 PAPR Assembly is NIOSH approved for
both loose and tight fitting as outlined in the System
Description and Use Section 4.
The SR 500 must always be used with a particulate
filter (SR 510 or SR 710) – either separately or in
combination with a chemical cartridge. Only the SR
510 particulate filter can be used in combination with a
SR 532 or SR 533 chemical cartridge. The SR 710 can
not be used in combination with a chemical cartridge.
2.2 Warnings/limitations
WARNINGS
The SR 500 must not be used:
• Ifthepowerisoff.Inthisabnormalsituationarapid
buildup of carbon dioxide and depletion of oxygen
may occur in the headgear.
• Iftheatmospheredoesnothaveadequateoxygen
content (at least 19.5%).
• Ifthepollutantsand/ortheirconcentrationsare
unknown.
• Inenvironmentsthatareimmediatelydangerousto
life or health (IDLH).
• Ifthecontaminantconcentrationsexceedthe
assigned protection factor (APF) recommended for
the applicable respiratory inlet cover or the APF
mandated by specific government standards,
whichever is lower.
• Withoxygenoroxygen-enrichedair.
• InDivisionIlocations:ClassI,GroupD;ClassII,
Groups E, F, G; and Class III. Temperature code ”T3”
that require an intrinsic safety approval.
• Inenvironmentswherethefanunit/filter/cartridge
assembly directly comes into contact with sparks or
molten metal spatter. Direct contact with sparks or
molten metal spatter may damage the filter or
cartridge allowing unfiltered air into the breathing
zone, which may result in sickness or death, and
may cause the filter or blower housing to ignite,
resulting in serious injury, sickness or death.
• Ifyoufinditdifficulttobreathe.
• Ifyoucansmellortastethepollutants.
• Ifyouexperiencedizziness,nauseaorother
discomfort.
Limitations
• Donotexceedmaximumuseconcentrations
established by regulatory standards.
• TheSR500mustalwaysbeusedwithtwo
particulate filters or two combined filters.
• Iftheuserisexposedtoveryhighworkintensity,a
partial vacuum may occur in the headgear during the
inhalation phase, which may involve the risk of
leakage into the headgear.
• Theprotectionfactormaybereducedifthe
equipment is used in surroundings in which high
wind speeds occur.
• Beawarethatthebreathinghosemightmakealoop
and get caught up by something in your
surroundings.
• Neverliftorcarrytheequipmentbythebreathing
hose.
• Thefilters/cartridgesmustnotbefitteddirectlyto
the facepiece or headgear.
• OnlyuseSundströmfiltersandcartridges.
• Donotcleanrespiratorwithsolvents.Cleaningwith
solvents may degrade some respirator components
and reduce respirator effectiveness. Inspect all
respirator components before each use to ensure
proper operating conditions. Failure to do so may
result in sickness or death.
• Neverattempttocleanfiltersbyknockingorblowing
out accumulated material. This may result in damage
to the filter membrane allowing hazardous particles
to enter the breathing zone, resulting in sickness or
death.
• OnlyaSundströmbatterymustbeused.
• OnlyaSundströmbatterychargermustbeused.
• TheSR500respiratorcomponentsandfiltration
media must be used only in the configurations
indicated on the NIOSH Approval Labels. Refer to
NIOSH Approval Label for list of approved
components.
• Theusermustcheckthecartridge/filterbeing
mounted to ensure it is the correct cartridge / filter
issued by the respirator program manager on site for
the application.
3. Unpacking and Parts List
3.1 Unpacking
Check that the equipment is complete in accordance
with the packing list and has not been damaged in
transit. Use only components listed on the NIOSH
approval label in the approved configuration and in
accordance with the part numbers shown in the Parts
List Section 3.
3.2 Parts List
The part numbers below refer to Fig. 1. at the end of
the user instructions.
Item No. Part Ordering No.
1. Fan SR 500, bare R06-0121
3. HD battery, 3.6 Ah T06-0101
4. Battery charger SR 513 R06-0103
5. Rubber belt SR 503 T06-0104
6. Leather belt SR 504 T06-0103
7. Belt PES SR 508 R06-0101
8. PU hose SR 550 T01-1216
9. Rubber hose SR 551 T01-1218
10.O-ring R06-0202
11. Flat gasket R06-0506
12.Hood SR 520 M/L H06-0221
13.Hood SR 520 S/M H06-0321
14.Hood SR 530 H06-0421
15.Face shield SR 540 H06-0521
16. Helmet SR 580 H06-8021
17. Full face mask SR 200, PC visor H01-1221
18. Full face mask SR 200, glass visor H01-1321
19. Flow meter SR 356 R03-0346
20. Splash cover T06-0114
21. Harness SR 522 T06-0116
22. Storage bag SR 505 T06-0102

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23. Gasket R06-0107
24. Pre-filter holder SR 512 R06-0106
25. Particulate filter P100/HE, SR 510c H02-1312
26. Filter adapter SR 511c R06-0105
27. Particulate filter P100/HE, SR 710c H02-1512
28. Pre-filter holder SR 5153 c R01-0604
29. Chemical cartridge SR 532a,c H02-7121
30. Chemical cartridge SR 533b,c H02-7221
31. Plug kit R06-0703
Cleaning Wipes SR 5226 H09-0401
a. Organic Vapors (OV), Acid gases.
b. Acid gases, Ammonia, and certain amines.
c. Two cartrdiges are required for operation of the
SR 500 Fan Unit.
4. System Description and Use
4.1 SR 500 Fan Unit System
When selecting an air-purifying respirator the following
are some of the factors that must be taken into
account:
• Possibleoccurrenceofexplosiveatmosphere.
• Typesofpollutants.
• Concentrations.
• Workintensity.
• Protectionrequirementsinadditiontorespiratory
protective device.
The risk analysis should be carried by a person who
has suitable training and experience in the area. See
also Sections 2.1 NIOSH Cautions and Limitations and
2.2 Warnings/limitations.
IMPORTANT: THIS RESPIRATOR IS INTENDED TO
BE USED ONLY IN CONJUNCTION WITH AN
ORGANIZED RESPIRATORY PROTECTION
PROGRAM WHICH COMPLIES WITH THE
REQUIREMENTS OF “PRACTICES FOR RESPIRA-
TORY PROTECTION”, Z88.2-1992 AVAILABLE
FROM AMERICAN NATIONAL STANDARDS
INSTITUTE (ANSI), 11 WEST 42ND STREET, NEW
YORK, N.Y. 10036, OR WITH THE REQUIREMENTS
OF OSHA STANDARD 29 CFR 1910.134 AVAILABLE
FROM THE US DEPARTMENT OF LABOR,
OCCUPATIONAL SAFETY AND HEALTH ADMINIS-
TRATION AND/OR OTHER PERTINENT NATIONAL-
LY RECOGNIZED STANDARDS.
The SR 500 Fan Unit is a belt-mounted blower/filtration
unit. To form a complete powered air purifying (PAPR)
respirator system, the SR 500 must be combined with
the appropriate filters or combination filter/cartridges,
battery pack and respirator facepiece or headgear.
The SR 500 PAPR system is intended to provide
respiratory protection against certain particulates,
organic vapors, acid gases, other inorganic gases. The
SR 500 is NIOSH Loose and Tight Fit approved with
certain components. Refer to NIOSH Approval Label
for list of approved components.
The SR 500 PAPR can be used as an alternative to
air-purifying filter/cartridge respirator in all situations for
which these are recommended. This applies
particularly to work that is hard, warm or of long-dura-
tion. This respirator can be used for protection against
a mixture of contaminants that are present simultan-
eously or alternately against one contaminant then
another (using the same filters/canisters) if the mixture
meets the following conditions:
• Thefilter/cartrigemustbeapprovedforall
contaminants present.
• Particulates(dusts,mists,fumes,asbestos,
radionuclides) can be mixed with any other
particulate or any gas or vapor for which the cartrige
is approved.
• Contaminantspresentsimultaneouslymustbe
below IDLH levels for the specific contaminants. If
any one contaminant in the mixture exceeds the
IDLH concentration then the entire mixture must be
treated as IDLH and the respirator cannot be used
(except for escape from particulates with appropria-
te filter).
Exposure Limits for Mixtures
The American Conference of Governmental Industrial
Hygienists (ACGIH) publishes the following information
to determine the Threshold Limit Value (TLV) of a
mixture.
First determine the total concentration of the chemical
mixture (CMixture) from the individual contaminant
concentrations (C1, C2, C3, . . . ) using the following
formula: CMixture=C1+C2+ C3+ . . .
The TLV of the mixture is found by using the following
formula where T1, T2, T3, . . . are the individual
contaminant TLVs and C1, C2, C3, . . . are the
individual contaminant concentrations:
Only use these equations if the contaminants present
are actually mixed. Some substances do not mix and
may be present separately, for example, in pockets or
at different levels. In that case, the lowest TLV of the
substances present must be used to determine the
appropriate respirator category for protection against
all contaminants present.
IMPORTANT: If you feel uncertain about the
selection and care of the equipment, consult your
work supervisor or get in touch with Sundström
Technical Support.
RESPIRATOR USE LIMITATIONS
The SR 500 system must not be worn:
• InOxygendeficientatmospheres
• Wherecontaminantconcentrationisunknown
• Wherecontaminantconcentrationisatorabove
immediately dangerous to life or health (IDLH)
• Wheremaximumuseconcentrationsareexceeded
• Fullfacepiece:wherethecontaminantconcentration
is 1000 times the exposure limit.
• Headgear:wherethecontaminantconcentrationis
25 times the exposure limit.
• Wherethelimitationsoutlinedintheapplicable
NIOSH approval are exceeded.
• Whereanyapplicablelimitationcontainedina
standard established by a regulatory agency (such
as OSHA) with jurisdiction over the wearer is
exceeded.
A listing of acceptable exposure limits is available from
the American Conference of Governmental Industrial
Hygienists (ACGIH); Occupational Safety and Health
Administration (OSHA); National Institute for Occupatio-
nal Safety and Health (NIOSH) and American Industrial
Hygiene Association (AIHA).

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The SR 500 requires the use of one lithium ion (Li-ion)
type battery heavy duty HD; one of several alternate
respiratory inlet coverings - full face mask, hoods, and
visor; and two (2) filters or combined filters/cartridges.
The SR 500 can be operated for up to 13 hours.
The same control button is used for starting, stopping
and selection of operating status. The SR 500 Fan Unit
has a display with the following symbols:
• Smallfansymbolthatlightsupwithagreenlight
during normal operation 6.2 CFM (175 l/min).
• Biggerfansymbolthatlightsupwithagreenlight
during boosted operation 7.9 CFM (225 l/min).
• Trianglethatlightsupwitharedlightiftheairflow
should cease or if the filters are clogged.
• Batterysymbollightsupwithayellowlightwhenthe
battery capacity is low.
To operate the fan unit:
• Startthefanbypressingthecontrolbutton.Fig. 17.
• Afterthebuttonhasbeenpressed,aprogrammed
test will be run on the fan unit, during which the
symbols on the display will light up, the sound signal
will sound and the vibrator will vibrate twice. Fig. 18.
• Aftertheinternaltest,allsymbolswillbeextinguis-
hed except the small green fan symbol. This
indicates normal operating status with a flow of at
least 6.2 CFM (175 l/min).
• Ifthebuttonispressedagain,boostedoperating
status will be activated, with a flow at least 7.9 CFM
(225 l/ min). This is indicated by the larger green fan
symbol lighting up.
• Toreverttonormaloperation,pressthecontrol
button once again.
• Toswitchoffthefanunit,keepthecontrolbutton
depressed for about two seconds.
Air flow rates
On normal operation, the fan delivers at least 6.2 CFM
(175 l/ min), and on boosted operation, at least 7.9 CFM
(225 l/min). The automatic flow control system of the fan
unit maintains these flows constant throughout the
operating time. The SR 500 is equipped with
automatic air flow control and initiates an alarm by
vibration and sound/light signals in the event of an
obstruction in the air flow.
SR 500 Warning System/Alarm Signals
If the air flow should drop below the preselected value
6.2 CFM or 7.9 CFM (175 or 225 l/min), the SR 500 Fan
Unit will provide the following alarms:
• Apulsatingsoundsignalwillbeheard.
• Thebuilt-invibratorwillbeactivated.
• Theredwarningtriangleofthedisplaywillflash.
WARNING - Immediately interrupt the work, leave
the area, and inspect the equipment. Do not
remove the SR 500 respiratory inlet covering while
you are in contaminated atmosphere.
If the PARTICULATE filters are clogged, this is indicated
in the following way:
• Acontinuoussoundsignalwillbeheardforfive
seconds.
• Theredwarningtriangleinthedisplaywillflash.
• Thebuilt-invibratorwillbeactivatedforfiveseconds.
• Thewarningtrianglewillflashcontinuously,whereas
the sound signal will be repeated at intervals of 80
seconds.
WARNING - Immediately interrupt the work, leave
the area, and inspect the equipment. Do not
remove the SR 500 respiratory inlet covering while
you are in contaminated atmosphere.
If the battery capacity is low - the battery capacity has
dropped to about 5 % of the original charge, this is
indicated as follows:
• Asoundsignalwillberepeatedtwiceatintervalsof
two seconds.
• Theyellowbatterysymbolofthedisplaywillflash.
• Thebuilt-invibratorwillbeactivatedtwiceat
intervals of two seconds.
• Thebatterysymbolwillflashcontinuously,whereas
the other signals are repeated at intervals of 30
seconds until about one minute remains before the
battery would be fully discharged. The sound signal
then changes to an intermittent signal.
WARNING - Immediately interrupt the work, leave
the area, and inspect the equipment. Do not
remove/doff the SR 500 respiratory inlet covering
while you are in contaminated atmosphere.
4.2 Belt
There are three (3) belt assemblies that can be used
with the SR 500 Fan Unit based on the material used n
the construction of the belt: rubber (SR 503), leather
(SR 504) and nylon (SR 508). The belt consists of two
halves that can be fitted to the rear of the fan unit
without tools. To assemble proceed as follows:
• Placethefanupsidedown.Fig4.
• Insertthethreetonguesofthebelthalfintotheslot
in the fan. The folded end of the strap should face
upwards. Study the illustration carefully to ensure
that the belt will not end up upside down or back to
front. Fig 4.
• Pressdownthethreelipslockingthebelthalf.Fig.5.
• Proceedinthesamewaywithotherhalfofthebelt.
• Thelengthofthebeltcaneasilybeadjustedby
pulling in or slackening the strap ends.
4.3 Battery
There are one lithium-ion (Li-ion) battery 3.6 Ah
availiable for the SR 500 and are good for at least 500
charging cycles. One battery is required to operate the
SR 500 Fan Unit. The charging time is 1.5-2 hours.
The fan operating time is up to 13 hours.
On delivery, the battery fitted in the fan unit is provided
with protective tape over the terminals. New batteries
must be charged before they are used for the first time.
The battery need not be discharged before it is
charged. Remove the battery from the fan unit and
remove the protective tape. To charge the battery
proceed as follows:
• Placethefanupsidedown.Gripthefanwithone
hand, with the thumb placed over the battery. Fig 3.
• Thebatterycoverlocksthebattery.Raisethecover
a few centimeters, push with the thumb resting on
the battery and withdraw the battery. Fig. 3.
• Checkthatthemainsvoltageisbetween100Vand
240 V.
• Connectthebatterytothebatterycharger.Fig.2.

7
The charger carries out charging automatically in three
stages:
1. Orange LED - The battery is being charged at
constant, maximum charging current up to
approximately 80% of battery capacity.
2. Yellow LED - The battery is being charged to full
capacity at constant voltage and gradually
decreasing charging current.
3. Green LED - The battery is fully charged and the
charging current is switched off.
• Whencharginghasbeencompleted,pulltheplug
out of the socket before separating the battery from
the charger.
• Pushthebatterybackintothebattery
compart¬ment. Check that the battery has been
pushed in as far as it will go and that its lock is
operative.
Storage
After cleaning, store the equipment in a dry and clean
place at room temperature. Avoid exposing it to direct
sunlight. A cool well-ventilated area in the temperature
range of 50 to 77ºF (10 to 25ºC) [at a relatively humidity
less than 70%] is ideal to minimize degradation while in
storage. Batteries in storage do not retain their full
charge indefinitely. Sundström recommends that
batteries not in use be charged at least once per year.
When not in use do not store the SR 500 Fun Unit with
the battery installed. Leave the battery connected to
the Sundström charger (SR 513) store the battery
separated from the SR 500 Fan Unit.
WARNING: If the battery shorts or overheats it can
cause a fire, venting of gas or fumes, or leakage of
electrolyte that can cause personal injury.
Performance & Conditioning (charging and
recharging)
The SR 500 Fan Unit can provide up to 13 hours of
operating time.
The NIOSH laboratory performance service life
(breathing machine operating at a rate of 24 respira-
tions per minute, minute volume of 40 l/m for a period
of 4 hours) is not guaranteed in real situations. The
actual service life of a PAPR will depend on the charge
of the battery, condition of the battery (batteries
degrade over their lifetime), battery operating
temperature, workload of the user (breathing rate of
variable speed PAPR) or resistance to air flow
associated with clogging of the filtering components,
prolonged periods of operation, etc.
For best performance of the SR 500 Fan Unit charge
the battery immediately after each use. The Li-ion
rechargeable battery should not be completely
discharged. Batteries in poor condition could cause the
“low battery warning” time to be reduced or the PAPR
air flow to decrease rapidly.
WARNING: There is no field maintenance on Li-ion
batteries. Do not attempt to disassemble or repair
a damaged battery. This may result in serious
bodily injury or death.
Shelf Life & Disposal
The SR 500 system has a shelf life of 5 years from the
date of manufacture. However, note that the battery
must be charged at least once a year.
The battery contains no mercury, cadmium or lead, and
is therefore not regarded as environmentally harmful
waste.
WARNING: Do not dispose of the battery in a fire as
this may cause the battery to explode and may
result in serious bodily injury or death.
Battery Safety
WARNINGS:
• Alwaysrechargethebatterybeforeithas
become fully discharged.
• Donotstore,useorconditionabatterythat
shows signs of damage such as budging,
swelling, disfigurement, or liquid excretion. This
could cause serious personal injury.
• DonotreplaceabatterywhenthePAPRis
turned on or when the PAPR is operating. This
could cause damage to the battery.
• Thebatterymaybechargedonlywithagenuine
Sundström charger (SR 513).
• Thechargermaybeusedonlyforchargingthe
batteries for the SR 500.
• Thechargerisdesignedonlyforuseindoors.
• Thechargermustnotbecoveredwhileitisin
use.
• Thechargermustbeprotectedagainst
moisture.
• Nevershortcircuitthebattery.Donotcarryor
store a battery with other metal objectives that
could cause a short circuit.
• Nevertrytodismantlethebattery.
• Neverreplaceabatterywithanothertypeof
battery and only use the Sundström SR 502
battery.
• Neverleaveabatteryindirectsunlightorclose
to a heat source for extended periods of time or
discard in a fire as chemical leakage or
explosion could occur.
• Neverimmerseabatteryinwaterorliquid.
• Neverdisassembleabattery,itcanleaktoxic
chemicals (e.g. electrolyte and in some cases
explode.
WARNING - The SR 500 Fan Unit and battery is not
for use in environments requiring intrinsic safety.
DO NOT USE the SR 500 Fan Unit in environments
that require intrinsically safe equipment. Misuse
may result in serious bodily injury or death.
4.4 Respiratory Inlet Coverings
The choice of respiratory inlet coverings includes a full
facepiece mask and alternate headgear. The
appropriate choice depends on the working
environment, work intensity and the required protection
factor. The following respiratory inlet covers are
available for the SR 500:
• Fullfacemask,modelnumberSR200.
• PCVisor
• GlassVisor
• Hood,modelnumberSR520.
• Small/medium
• Medium/large
• Hood,modelnumberSR530.
• FaceShieldwithvisor,modelnumberSR540.
• Helmetwithvisor,modelnumberSR580.
WARNING: Failure to pass a user performance
check and complete all necessary repairs before
use may adversely affect respirator performance
and result in sickness or death.

8
Full Face Mask SR 200
The SR 200 full face mask is made of silicone and is
produced in one size that will fit most face sizes. The
facepiece consists of an outer mask with
polycar¬bonate visor (or alternate glass visor) that
covers the user’s face, an integrated inner mask with
inhalation and exhalation valves that covers the user’s
nose, mouth and chin, a rubber strap head harness
with 6 mounting points that hold the respirator in place.
The facepiece is NIOSH approved for use as an
air-purifying full face respirator with particle filters/
cartridges and as a respiratory inlet cover component
of the SR 500 PAPR. Eye protection (ANSI Z87.1-2010)
protection. Product specifications are available from
Sundström (See Section 10 for contact information).
Hoods SR 520 M/L, SR 520 S/M, SR 530, Face
Shield 540
Hoods SR 520, SR 530 and face shield SR 540 are
available for use with the SR 500 Fan Unit. Before use,
these user instructions and those for the fan units,
filters and compressed air attachment must be
thoroughly studied. The breathing hose must be
connected to the fan unit equipped with filters.
SR 520 and SR 530
The SR 520 and SR 530 hoods protect the respiratory
organs and the crown of the head. They contain an
impact-resistant and chemical-resistant visor. The
supplied air keeps the SR 500 Fan Unit visor demisted.
An adjustable head harness allows for fit adjustments
to improve fit and comfort. The flexible breathing hose
is permanently mounted to the hood. The SR 520 and
SR 530 hoods are equipped with exhalation valve to
reduce the build up of carbon dioxide.
Moreover, the SR 530 also protects the head and
shoulders, is equipped with adjustable neck fit and the
distance between the visor and the face is adjustable.
SR 540
The SR 540 face shield protects the breathing zone,
the crown of the head and eye protection (ANSI
Z87.1-2010) protection. It contains a hinged visor unit
and scratch resistant and chemicals resistant
polycarbonate visor. The supplied air flow keeps the
visor demisted. An adjustable head harness allows for
fit adjustments to improve fit and comfort. The flexible
breathing hose is replaceable. The face shield is
equipped with an exhalation valve reduce the build up
of carbon dioxide. The face shield is available in one
size and offers optional PETG visor, peel-offs and
head-cover.
SR 580
The SR 580 helmet protects the breathing zone and
provide limited head (ANSI Z89.1-2009 Type 1 Class G)
and eye (ANSI Z87.1-2010) protection. It contains a
hinged visor unit and scratch resistant and chemicals
resistant polycarbonate visor. The supplied air flow
keeps the visor demisted. An adjustable head harness
allows for fit adjustments to improve fit and comfort.
The flexible breathing hose is replaceable. The face
shield is equipped with an exhalation valve reduce the
build up of carbon dioxide. Equipped with standard
fastener that allows use of hearing protection. The face
shield is available in one size and offers optional
peel-offs and heat protection, welding shield and
welding protection.
4.5 Breathing Hose
The breathing hose is not included with the SR 500 Fan
Unit. There are two breathing hose types available for
the SR 200 facepiece – PU and rubber. The breathing
hose for the SR 200 full facepiece mask is sold
separately.
The breathing hose is supplied with the relevant
respiratory inlet covering.
To assemble the breathing hose to the SR 200 proceed
as follows:
• Oneendofthehoseisprovidedwithathreaded
adapter. Connect the adapter to the filter thread of
the mask. Fig. 8.
• CheckthattheO-ringofthehoseisinplace.Fig.6.
• Connectthehosetothefanunitandturnit
clockwise about 1/8 of a turn. Fig. 7.
Check that the hose is firmly secured.
The breathing hose is attached to the alternate
headgear. To connect the hose to the fan unit turn it
clockwise about 1/8 of a turn.
Check that the hose is firmly secured.
4.6 Filters /Cartridges
The choice of filters (SR 510, SR 710)/combined filter /
cartridge (SR 510/SR 532, SR 510/SR 533) depends on
factors such as the type and concentration of
pollutants. The fan unit may be used with only
particulate filters or with a combination of particulate
filters and chemical cartridges.
WARNING: Read carefully the user instructions
accompanying the filters and cartridges.
WARNING: No signal is activated when the gas
cartridges are saturated. Consult your supervisor
or respiratory protection program administrator for
the change schedule applicable to your work site.
WARNING: DO NOT use the canister if the bag is
opened, damaged, or missing. The canister must
be in its original packaging prior to use in a
contaminated environment. Do not reuse the
canister.
Pre-filter holder
Fit in the pre-filter holder, which protects the main filters
against handling damage. Fig. 12.
P-100 /HE Particulate Filters
Sundström markets only particle filters of the highest
class P100 /HE. Two models are available for use with
the SR 500 fan unit, SR 510 and SR 710. The filters
provide protection against all types of particles, both
solid and liquid. The SR 510 can be used separately or
combined with a chemical cartridge. The SR 710
cannot be combined with a chemical cartridge. The
SR 710 can be used with the same pre-filter holder (SR
5153), as the one used with any Sundström air-purifying
respirator face masks (e.g. ½ mask SR 100, full face
mask SR 200).
Chemical cartridges
The chemical cartridges must always be combined
with a P100 /HE particle filter (SR 510). Press the filter
and cartridge together so that the arrows on the
PARTICULATE filter point towards the chemical
cartridge. Fig. 14.

9
The SR 532 chemical cartridge protects against
organic gases and vapors, e.g. solvents, with a boiling
point of more than +65 °C. It protects against acidic
gases and vapors, such as sulphur dioxide, chlorine,
hydrogen chloride and hydrogen fluoride.
The SR 533 gas cartridge protects against acidic gases
and vapors, such as chlorine, hydrogen chloride,
sulphur dioxide and formaldehyde. It protects against
ammonia and certain amines.
The following filters are available for the SR 500:
• SR510particulatefilterP100/HEisusedwithan
adapter to permit threading into the fan unit. Two
filters are required to operate with the fan unit. This
filter can be combined with a chemical cartridge by
snapping it onto a chemical cartridge.
• SR710particulatefilterP100/HEcontainsthreads
and is threaded directly into the fan unit. An adapter
is not needed. Two filters are required to operate
with the fan unit. This filter cannot be combined with
a chemical cartridge.
• SR532chemicalcartridgeprovidesprotectionfor
organic vapors and acid gases. For particulate
protection it can be combined with an SR 510
particulate filter. Two cartridges or combination
filter/cartridges are required to operate with the fan
unit.
• SR533chemicalcartridgeprovidesprotectionfor
acid gases, ammonia and certain amines. For
particulate protection it can be combined with an SR
510 particulate filter. Two cartridges or combination
filter/cartridges are required to operate with the fan
unit.
Two filters or combined filter/cartridge of the same type
and class must always be used at the same time. To
install the filters or combination filter/cartridges proceed
as follows:
Particulate filter SR 510
• Checkthatthegasketsinthefiltermountingofthe
fan unit are in place and are in good condition.
Fig. 9.
• Snaptheparticulatefilterontothefilteradapter.Do
not press onto the centre of the filter - it might
damage the filter paper. Fig. 10.
• Screwtheadapterintothefiltermountingsofarthat
the adapter will be in contact with the gasket. Then
turn it about 1/8 turn further in order to ensure a
good seal. Fig. 11.
Particulate filter SR 710
• Checkthatthegasketsinthefiltermountingofthe
fan unit are in place and are in good condition.
Fig. 9.
• Screwthefilterintothefiltermountingsofarthatthe
adapter will be in contact with the gasket. Then turn
it about 1/8 of a turn further in order to ensure a
good seal. Fig. 11.
Combined filter/cartridge
• Checkthatthegasketsinthefiltermountingofthe
fan unit are in place and are in good condition.
Fig. 9.
• Snaptheparticulatefilterontothechemical
cartridge. The arrows on the particulate filter must
point towards the chemical cartridge. Do not press
onto the centre of the filter - it might damage the
filter paper. Fig. 14.
• Screwthecombinedfilter/cartridgeintothefilter
mounting until it is in contact with the gasket. Then
turn it about 1/8 turn further to ensure a good seal.
Fig. 15.
IMPORTANT: The particulate filters used must be of
the same type (e.g. SR 510 or SR 710). The
combination filter/cartridges used must be of the
same type (e.g. SR 510/SR 532 or SR 510/SR 533).
IMPORTANT: A particulate filter (SR 510 or SR 710)
must always be used – either separately or in
combination with a chemical cartridge . Only the
SR 510 particle filter can be used in combination
with an SR 532 or SR 533 chemical cartridge.
WARNING: When filters or combined filter/
cartridges are changed, both must be changed at
the same time. DO NOT reuse filters/cartridges.
They are intended for one time use only. Failure to
follow this warning can result in serious personal
injury or death.
WARNING: If the respirator does not perform as
specified, it must not be used until it has been
checked by authorized personnel. Return to a
non-contaminated area immediately if you
experience unusual sensations (nausea, dizziness,
eye irritation, unusual odor or taste, excessive
fatigue, or difficulty breathing). Failure to follow
this warning can result in serious personal injury or
death.
4.7 Performance Check and Flow
Meter
On normal operation, the fan delivers at least 6.2CFM
(175 l/ min), and on boosted operation, at least 7.9CFM
(225 l/min). The automatic flow control system of the fan
unit maintains these flows constant throughout the
operating time.
WARNING: Failure to pass a user performance
check and complete all necessary repairs before
use may adversely affect respirator performance
and result in sickness or death.
WARNING: Failure to verify proper airflow from the
fan unit assembly may result in reduced perfor-
mance of the unit, resulting in serious personal
injury or death.
To check of the Manufacturer’s Minimum Design Flow
(MMFD) proceed as follows:
• Checkthatthefanunitiscomplete,correctly
mounted, thoroughly cleaned and undamaged. A
fully charged battery must be installed.
• Startthefanunit(See4.1).
• Installtheproperbreathinghoseandfacepieceor
headgear.
Place the facepiece or headgear in the flow meter (SR
356) and grip the lower part of the bag to seal around
the breathing hose. Note. You must not grip around
the rubber hose itself as this would either obstruct the
air flow or cause failure to achieve a proper seal. Grip
the flow meter tube with the other hand so that the tube
points vertically upwards from the bag. Fig. 19.
Read the position of the ball in the tube. This should
hover at a level with or slightly above the upper

10
4.10 Other Accessories
A variety of optional components and accessories are
available for the SR 500 to afford the user flexibility in
selecting configurations of components to optimize
protection and comfort. Optional components include;
Hoods: SR 520 S/M, SR 520 M/L, SR 530
Face Shield: SR 540
Helmet: SR 580
Full facepiece: SR 200
Battery: Standard 2,2Ah, Heavy Duty 3.6 Ah
Particulate Filters: SR 510, SR 710
Chemical Cartridges: SR 532, SR 533
Flow Meter: SR 356
Belts: Rubber, Leather, Nylon
Use only components listed on the NIOSH approval
label in the approved configuration and in
accordance with the part numbers shown in the
Parts List Section 3.
Accessory components include:
Eyewear: SR 341
Welding Cassette: SR 84
Storage bag: SR 505
Cleaning tissues: SR 5226
Pre-filter holder: SR 512
Splash cover: SR 514
Harness: SR 552
Hose protection: SR 52091
Plug kit
The Plug kit is used for cleaning or decontamination of
the fan unit and prevents dirt and water from entering
the fan housing.
Disconnect the breathing hose and the filters and install
the plugs. Fig. 29.
marking on the tube, 6.2CFM (175 l/min). Fig. 20.
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.
WARNING: DO NOT use the respirator if the ball
does not rise completely above the line on the air
flow indicator. Failure to follow this warning can
result in serious personal injury or death.
Checking the alarms
The fan unit is designed to provide a warning if the air
flow is obstructed. This alarm function should be
checked in conjunction with the flow check before the
equipment is used. Proceed as follows:
• Provokeanairflowstoppagebygrippingthetop
part of the bag or by shutting off the flow meter
outlet. Fig. 21
• Thefanunitshouldtheninitiatealarmsbysoundand
light signals and vibrations.
• Iftheairisagainallowedtoflow,thealarmsignals
will automatically cease after 10 to 15 seconds.
• Switchoffthefanunitandremovetheflowmeter.
WARNING: The flow and alarms performance
check should be checked on every occasion before
the fan unit is used.
4.8 Donning
After the filters /cartridges have been fitted, a
performance check has been carried out and the
respiratory inlet covering has been connected, the SR
500 can be put on. Before putting it on, read the user
instructions for the head top.
• Takethefanunitonandadjustthebeltsothatthe
fan unit is firmly and comfortably secured at the
back of your waist. Fig. 22.
• Startthefanbypressingthecontrolbutton.
• Puttherespiratoryinletcoveringon.
• Forheadgearmakesurethatthebreathinghose
runs along your back and is not twisted. Fig. 22.
When a full face mask is used, the hose should run
along your waist and up along the chest. Fig 23.
WARNING: Failure to pass a user performance
check and complete all necessary repairs before
use may adversely affect respirator performance
and result in sickness or death.
WARNING: Donning, doffing, and obtaining and
checking for a proper respiratory inlet cover seal
and SR 500 flow rate must be done in an area
known to be free of contaminants. The user must
have practiced this procedure before attempting to
use the respirator for respiratory protection.
Failure to follow this warning can result in serious
personal injury or death.
4.9 Doffing
Leave the polluted area before removing the respiratory
inlet covering and fan unit.
• Takeofftherespiratoryinletcovering.
• Switchoffthefanunit.
• 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).