Maintenance - Sundstrom SR 500 EX Gebrauchsanleitung

2.7 Performance check
Check of the minimum flow - MMDF
MMDF.stands.for.Manufacturer's.Minimum.Design.
Flow.rate..See.3..Technical.specification..This.flow.
should.be.checked.on.every.occasion.before.the.fan.
unit.is.used..Proceed.as.follows:
•.. Check.that.the.fan.unit.is.complete,.correctly.
mounted,.thoroughly.cleaned.and.undamaged.
•.. Start.the.fan.unit..See.2.6.
•.. SR.550.PU.breathing.hose:
. Place.the.head-top.in.the.flow.meter.and.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..Fig..19.
•. SR.551.Rubber.breathing.hose:
. Place.the.head-top.in.the.flow.meter.and.grip.the.
lower.part.of.the.bag.to.seal.around.the.upper.
attachment.of.the.breathing.hose..(Attachment.is.
shown.in.fig..8)..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.marking.on.the.tube,.(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.
Checking the alarms
The.equipment.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.
•.. If.the.air.is.again.allowed.to.flow,.the.alarm.signals.
will.automatically.cease.after.10-15.seconds.
•.. Switch.off.the.fan.unit.and.remove.the.flow.meter.
2.8 Putting the equipment on
After.the.filters.have.been.fitted,.a.performance.check.
has.been.carried.out.and.the.head.top.has.been.
connected,.the.equipment.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..See.
also.2.6.above.
•.. Put.the.head.top.on.
•.. Make.sure.that.the.breathing.hose.runs.along.your.
back.and.is.not.twisted..Fig..22..Note.that.when.a.
full.face.mask.is.used,.the.hose.should.run.along.
your.waist.and.up.along.the.chest..Fig..23.
40
2.9 Taking the equipment off
Leave.the.polluted.area.before.taking.the.equipment.
off.
•.. Take.off.the.head.top.
•.. Switch.off.the.fan.
•.. Release.the.belt.and.remove.the.fan.unit.
After.use,.the.equipment.must.be.cleaned.and.
inspected..See.4..below.
3. Technical specification
Classification according to ATEX-directive 94/9/
EC and IECEx scheme
See.paragraph.8,.Approvals
EX Battery
NiMh.battery,.13.5.V,.2.1.Ah..Charging.time.about.2.h..
Operating times
The.operating.times.may.vary.with.the.temperature,.
and.the.condition.of.the.battery.and.filters.
The.table.below.gives.the.expected.operating.times.
under.ideal.conditions.
Filter Air flow rate
P3.R. 175.l/min.
P3.R. 225.l/min.
A1BE2K1P3.R. 175.l/min.
A1BE2K1P3.R. 225.l/min.
Air flow rate
During.normal.operation,.the.air.flow.rate.is.at.least.
175.l/min,.which.is.the.manufacturer's.recommended.
minimum.flow.rate.or.MMDF..On.boosted.operation,.
the.air.flow.rate.is.at.least.225.l/min.
Shelf life
The.equipment.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.
Temperature range
•.. Storage.temperature:.from.-20.to.+40.°C.at.a.
relative.humidity.below.90.%.
•.. Service.temperature:.from.-10.to.+40.°C.at.a.
relative.humidity.below.90.%.
Materials
The.plastic.parts.are.marked.with.the.material.code.

4. Maintenance

The.person.who.is.responsible.for.cleaning.and.
maintenance.of.the.equipment.must.have.suitable.
training.and.be.well.acquainted.with.work.of.this.type.
4.1 Cleaning
Sundström.cleaning.tissue.SR.5226.that.clean.and.
disinfect.are.recommended.for.daily.care..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..
N.B..Never.use.a.solvent.for.cleaning.
Expected
operating times
6,5.h
4.h
4.h
2,5.h