Technical Specification; Key To Symbols - Sundstrom SR 500 EX Notice D'utilisation

4.4.2 To change the gaskets
The gaskets in the filter mountings of the fan unit
prevent polluted air being drawn into the fan unit. They
must be changed once a year or more frequently if
wear or ageing is detected. Proceed as follows:
• Switch off the fan unit.
• Screw out the filters.
• The gasket has a groove all round and is fitted on a
flange below the threads in the filter mounting. Fig. 28.
• Remove the old gasket.
• Fit the new gasket onto the flange. Check that the
gasket is in place all round.
4.4.3 To change the belt
See 3.2 b.
4.5 Maintenance of battery
For the longest lifetime, the battery SR 501 EX should
have regular charging and discharging cycles. Best
results are achieved with full discharge directly
followed with a full charge.
Battery charging - see 3.2 a.
4.5.1 Battery gasket
Check before use that the gasket around the opening
to the battery terminals are undamaged. Fig 3c.
Any dirt on the battery gasket is wiped off with a dry
cloth. Relubricate the gasket with Vaseline to facilitate
mounting. Figure 3b.
4.5.2 Storage of battery
Note:
• The battery can be deep discharged if it is not used
for a longer time which may result in damage to the
battery cells.
• Prolonged maintenance charge could also lead to a
premature wear out of the battery cells.
During long-term storage a scheduled charging
procedure is recommended, as follows:
• Charge the battery in accordance with 3.2 a.
• Store the battery at room temperature.
• Repeat charging after 6 to 8 weeks as long as the
storage continues.
• Fully charge the battery before planned usage.

5. Technical specification

Materials
The plastic parts are marked with the material code.
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.
The automatic flow control system of the fan unit
maintains these flows constant throughout the
operating time.
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.
44
Filter Air flow rate
P3 R 175 l/min
P3 R 225 l/min
A1BE2K1P3 R 175 l/min
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 %.
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 regular intervals. See 4.5.2.

6. Key to symbols

A Manufacturer.
B Model number.
C EN standards
applicable to fan
assisted respiratory
protective devices.
D ATEX/IECEx codes.
See under par. 7,
Approvals:
E Year of manufacture.
F Recycling symbol.
G Traceability serial
number.
H Ordering number.
I Not with ordinary
waste.
J See user instructions.
K Australian/New Zeeland standard and issuer of the
StandardsMark Licence.
CE approved by
INSPEC International B.V.
CE approved by NEMKO AS
Relative humidity
<XX% RH
+XX°C
Temperature range
-XX°C
7. Approval
• The SR 500 EX in combination with face shield
SR 540 EX, SR 570, hoods SR 520, SR 530,
SR 561, SR 562, SR 601, SR 602 or helmet with
visor SR 580 is approved in accordance with
EN 12941:1998, class TH3.
• The SR 500 EX in combination with full face mask
SR 200 is approved in accordance with
EN 12942:1998, class TM3.
• The SR 500 EX is ATEX approved (Directive
2014/34/EU) in accordance with EN IEC 60079-
0:2018, EN 60079-11:2012.
• The SR 500 EX is IECEx approved in accordance
with IEC 60079-0:2017 and IEC 60079-11:2011.
• The SR 500 EX conforms to the requirements of
EN 50081-1 Emission and EN 61000-6-2 Immunity,
which makes the fan conform to EMC Directive
2014/30/EU.
Expected
operating times
6.5 h
4 h
4 h
A
Västergatan 4
SE-341 50 Lagan Sweden
SR 500 EX
B
Art.no. R06-2001
EN 12941:1998 TH3
C
EN 12942:1998 TM3
EN 60079-11
II 2G Ex ib IIB/IIA T3 Gb
II 2D Ex ib IIIC T195°C Db
NEMKO 07 ATEX 1330
D
(Ta = -10°C to +40°C)
Ex ib IIB/IIA T3 Gb
Ex ib IIIC T195°C Db
IECEx NEM 08.0002
E
2021
F
G
501012628
H
K
I
J