Sundstrom SR 99 Manual de usuario
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Operating Instruction
SR 99 Compressed air filter
SR 99H Air heater
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General information
Breathable air must meet at least the following purity
requirements:
- the impurities must be maintained at a minimum, and must never
exceed the hygienic limit value.
- the content of mineral oil must be so low that no smell of oil will
be detectable (the odour limit is around 0.3 mg/m3).
- the dew point of the air must be so low that no water will be
precipitated out and no freezing will occur inside the equipment.
- For further particulars of breathable air, see EN 132:1998, EN
12021:1998 and possibly other national regulations.
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Use
SR 99
The filter has two outlets, one of which
is plugged prior to delivery.
Fit the safety coupling supplied.
The inlet thread of the filter is 1 /2” BSP
female. Fit a suitable coupling/nipple.
The filter drain is opened automatically
when the air supply is shut off. The drain
can also be opened manually. The filter
should be drained once per working
shift.
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The filter element is fitted prior to
delivery. Note the date on the label at
the outside of the filter housing to be
enable you to keep track of the date
when the filter should be changed.
The SR 99 is equipped with keyhole
mountings for mounting it on a wall,
but it can also be stood on a suitable
surface.
Use
SR 99/H
Connect the air heater to an earthed
power outlet.
Connect the air supply to the
compressed air filter.
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Turn the presetting knob clockwise until
the green lamp lights up. Then gradually
increase the output until the required
temperature of the outlet air is reached.
The maximum attainable temperature is
around 85 °C.
Connect the compressed air tube from
the air heater to the control valve of the
face piece.
To get best heat efficiency make sure
that the compressed air tube between
the air heater and control valve is as
short as possible (5 to 10 m) and that the
compressed air tube is not lying in snow
etc.
To switch off the heater element, turn the
presetting knob anticlockwise as far as it
will go, and disconnect the power supply
plug.
The overheating protection in the
electrical distribution box may trip
if, for example, the air flow is interrupted.
The red warning lamp will then indicate
that this has occurred.
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To reset the overheating protection,
proceed as follows:
Switch off the heater element by turning
the presetting knob anti-clockwise as far
as it will go. The green lamp will then be
switched off.
Allow the heater element to cool down.
Press the reset button.
Switch on the heater element as
described earlier.
Filter change
Under normal operating conditions, the
filter element has a useful life of around
six months. However, the useful life may
vary widely, depending on the condition
of the compressed air system and the
air flow rate through the filter. The
condition of the filter element can be
assessed by weighing. The original
weight is shown on the filter element. If
the weight has increased by about 100-
150 grams, the filter should be changed.
If the smell or taste of the impurities
become detectable, the filter should
immediately be changed:
Shut off the air inlet.
Press in the ring on the underside of the
drain valve to depressurize the filter.
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Loosen the hose between the regulator
and filter lid by pushing the red sleeve on
the coupling and disconnect the hose
from the lid.
Unscrew the knobs of the filter housing
and remove the lid.
Remove the used filter element. Clean
and wipe if necessary.
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Check the seals and change if they are
damaged.
Mount the new filter element. This has
identical ends and can be fitted either
way round.
Then assemble the filter:
Refit the cover.
Connect the hose between the control
valve and filter lid by pushing the hose
into the connector.
Tighten the knobs alternately by hand
until the lid meets the filter housing.
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Cleaning
Clean the outside of the filter as
necessary, using soapy water and a
sponge or brush. The filter can also be
blown clean with the compressed air or
flushed with water.
This also applies to the SR 99H that has
degree of protection IP65 and can thus
be flushed with water.
However, always switch off the power
supply and disconnect the power supply
plug before cleaning.
The regulator with pre-collector and
drain bowl should preferably be cleaned
in conjunction with changing the filter
element.
Cleaning
Regulator with pre-collector SR 99
Shut of the air inlet.
Push the ring at the bottom of the pre-
collector to depressurize the filter.
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Remove the guard. Slide the black
locking device down and turn the guard
anti-clockwise (bayonet mounting).
Remove the drain bowl. Push it upwards
and turn it anti-clockwise (bayonet
mounting). Wash the bowl in hot water
(not solvent!) at a maximum of 60 °C.
Remove the pre-collector element by
turning it anti-clockwise.
Blow the parts clean with compressed
air. Check that the drain outlet is not
obstructed.
Otros manuales para SR 99
2
Este manual sirve para los siguientes modelos
1
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