Technical Specification; Maintenance - Sundstrom SR 500 Gebrauchsanleitung

• 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 and vibrations.
• 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.
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.
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3. Technical specification

Batteries
STD, Standard, 14.8 V, 2.2 Ah, lithium-ion.
HD, Heavy Duty, 14.8 V, 3.6 Ah, lithium-ion.
• The charging time for the STD battery is about 1.5 h.
• The charging time for the HD battery is about 2 h.
• The cycling life is about 500 full cycles.
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.
STD HD Filter
2,2 Ah 3,6 Ah
• P3 (PAPR-P3)
• P3 (PAPR-P3)
• P3 (PAPR-P3)
• A1BE2K1P3
(PAPR-A1BE2K1-P3)
• A1BE2K1P3
(PAPR-A1BE2K1-P3)
• A1BE2K1P3
(PAPR-A1BE2K1-P3)
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 +55 °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.
4.2 Storage
After cleaning, store the equipment in a dry and clean
place at room temperature. Avoid exposing it to direct
sunlight. The flow meter can be turned inside out and
can be used as a storage bag for the head top.
Air flow Expected
rate operating time
175 l/min 8h
175 l/min 13 h
225 l/min 8 h
175 l/min 5 h
175 l/min 8,5h
225 l/min 5 h