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MARKINGS [FIG. 1]
Type identifying marking
A.
Size marking (small size: "S"; standard size: "M/L" or no marking;
B.
extra large size: "XL")
Part number marking
C.
Serial number marking
D.
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POSITIVE PRESSURE MODE
AMBIENT AIR VERSION
Positive pressure is activated by closing the ambient air hatch by pushing the
exhalation valve cover against the face mask. To shut off positive pressure and
breathe ambient air, simultaneously press down the indicator arm and push the
exhalation valve cover away from the face mask. [Fig. 4 and Fig. 5]
FIRST BREATH VERSION
Positive pressure is automatically activated by the first breath and can be switched off
manually by pushing the lifting arm on the breathing valve away from the cover for the
diaphragm. [Fig. 2 and Fig. 3]
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CONNECTING THE BREATHING VALVE
Insert the breathing valve into the face mask [Fig. 6] and move the external speech
1.
cone down to lock the breathing valve in position. In the correct position the lower
lip of the speech cone covers the serial number on the breathing valve. Tighten
the hand screw [Fig. 7].
ATTENTION! WHEN PUSHING THE BREATHING VALVE IN PLACE, THE FINGERS SHOULD NOT BE POSITIONED ON THE
INTERNAL SPEECH DIAPHRAGM AS THIS CAN CAUSE DAMAGE TO IT.
ON AMBIENT AIR VERSION, CONNECT THE BREATHING VALVE WITH THE AMBIENT AIR HATCH CLOSED.
Connect the breathing valve to the breathing hose [Fig. 8].
2.
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DONNING THE FACE MASK
With the positive pressure switched off, fit the face mask onto the head by first lift
1.
the lower part of the head harness with both thumbs [Fig. 9], put the chin in first
and then pull the head harness over the head. [Fig. 10]
Tighten the straps on the head harness [Fig. 11], starting with the two at the
2.
bottom. Do not overtighten the head harness.
On the version with ambient air hatch, activate the positive pressure. On the
3.
version with first breath activation, the positive pressure activates automatically.
Hold your breath and listen for leakage, adjust the face mask if necessary.
4.
Check that a strong air flow is heard when two fingers are inserted between the
5.
sealing edge and face. [Fig. 12]
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