General Information; Technical Specification - Sundstrom SR 700 Gebrauchsanleitung

Particle filter fan unit SR 700
EN

1. General information

2. Technical specification

3. Use
4. Maintenance
5. Key to symbols
6. Worn-out products
7. Approvals
1. General information
The SR 700 is a battery-powered particle filter fan unit
that, together with particle filter and head top - hood,
visor, welding shield, helmet with visor, half mask or
full face mask - is included in the Sundström
fan-assisted respiratory protective device systems
conforming to EN 12941/12942:1998 and to
Sundström Powered Air Purifying Respirator (PAPR)
system conforming
to AS/NZS 1716:2012. Before use, both these user
instructions and those for the filter and head top must
be carefully studied.
The fan unit is to be equipped with filters, and the
filtered air is supplied through a breathing hose to the
head top. The above-atmospheric pressure then
generated prevents pollutants from the surroundings
from penetrating into the head top. Use of a respirator
must be part of a respiratory protection program. For
advice see EN 529:2005 or AS/NZS 1715:2009. The
guidance contained in these standards highlights
important aspects of a respiratory protective device
program but does not replace national or local
regulations. If you feel uncertain about the selection
and care of the equipment, consult your work
supervisor or get in touch with the sales outlet. You
are also welcome to get in touch with the Technical
Service Department at Sundström Safety AB.
1.1 Applications
The SR 700 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.
When selecting filters and head top, the following are
some of the factors that must be taken into account:
• Types of pollutants
• Possible occurrence of explosive atmosphere
• 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.
1.2 Warnings/limitations
Warnings
The equipment must not be used
• In the power-off state. In this abnormal situation a
rapid build-up of carbon dioxide and depletion of
oxygen may occur in the head top and no
protection is given.
• If the surrounding air does not have a normal
oxygen content.
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• If the pollutants are unknown.
• In environments that are immediately dangerous to
life and health (IDLH).
• With oxygen or oxygen-enriched air.
• If you find it difficult to breathe.
• If you can smell or taste the pollutants.
• If you experience dizziness, nausea or other
discomfort.
Limitations
• The SR 700 must always be used with two particle
filters.
• If the user is exposed to very high work intensity, a
partial vacuum may occur in the head top during
the inhalation phase, which may involve the risk of
leakage into the head top.
• 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
surrounding.
• Never lift or carry the equipment by the breathing
hose.
• The filters must not be fitted directly to the head
top.
• Only use Sundström filters.
• The user should take care not to confuse the
markings on a filter to standards other than EN
12941:1998 and EN 12942:1998 with classification of
the SR 700 fan unit when used with this filter.
2. Technical specification
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 up to 225 l/min. The automatic flow
control system of the fan unit maintains these flows
constant throughout the operating time.
Battery
• 14.8 V, 2.2 Ah, lithium-ion.
• The charging time is about 2 h.
• The cycling life is about 500 full cycles.
• The battery need not be discharged before it is
charged.
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.
Air flow
rate
175 l/min more than 7 h/6 h*
225l/min
*SR 900 + SR 951/SR 952
Expected
operating
5 h/4 h*