Sundstrom SR 500 EX Instrucciones De Uso página 42

One end of the hose is provided with a flat gasket and
the other with an O-ring. Connect the end with the
gasket to the face shield.
• 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.
Full face mask SR 200
When using the SR 200 full face mask for the fan unit,
the mask and breathing hose are delivered separately.
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.
• Connect the other end to the fan unit as described
above.
• 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.
d) Particle filters/combined filters
Two filters or combined filters of the same type and
class must always be used at the same time. Proceed
as follows:
1. Particle 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 particle 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.
• Fit one pre-filter into the filter holder. Fig. 12.
• Press the filter holder onto the particle filter. Fig. 13.
2. Particle 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.
• Fit one pre-filter into the filter holder. Fig. 12.
• Press the filter holder onto the particle filter. Fig. 13.
3. Combined filters
• Check that the gaskets in the filter mounting of the fan
unit are in place and are in good condition. Fig. 9.
• Snap the particle filter onto the gas filter. The
arrows on the particle filter must point towards the
gas filter. Do not press onto the centre of the filter
- it might damage the filter paper. Fig. 14.
• Screw the combined filter 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.
• Fit a pre-filter into filter holder. Fig. 12.
• Press the pre-filter holder onto the combined filter.
Fig. 16.
Filter SR 599 is a combined gas filter and particle filter
and is screwed directly into the filter mounting of the
fan. Proceed as described above.
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e) 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.
3.3 Operation/performance
• 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 and the sound
signal will sound twice. Fig. 18.
• After the internal test, all symbols will be extin-
guished except the small green fan symbol. This
indicates normal operating status with a flow of at
least 175 l/min.
• If the button is pressed again, boosted operating
status will be activated, with a flow at least 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.
Warning system/alarm signals
• In the event of air flow obstructions
If the air flow should drop below the preselected
value (175 or 225 l/min), this is indicated in the
following way:
o A pulsating sound signal will be heard.
o The red warning triangle of the display will
flash.
Action: Immediately interrupt the work, leave the area,
and inspect the equipment.
• If the particle filters are clogged
If the particle filters are clogged, this is indicated in
the following way:
o A continuous sound signal will be heard for five
seconds.
o The red warning triangle in the display will
flash.
The warning triangle will flash continuously,
whereas the sound signal will be repeated at
intervals of 80 seconds.
Action: Immediately interrupt the work, leave the area
and change the filter.
Note! No signal is activated when the gas filters are
saturated. For particulars of changing the gas filters,
see under 2.4 Filters and the user instructions
supplied with the filters.
• If the battery capacity is low
If the battery capacity has dropped to about 5 % of
the original charge, this is indicated as follows:
o A sound signal will be repeated twice at
intervals of two seconds.
o The yellow battery symbol of the display will
flash.
The battery symbol will flash continuously, whereas
the sound signal is 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.
Action: Immediately interrupt the work, leave the area
and change/charge the battery.