Checking For Tight Fit - Dräger FPS 7000 Notice D'utilisation

3.4

Checking for tight fit

1. Put breathing apparatus in the connector.
2. Turn and pull the breathing apparatus to check for tight
fit. Have a second person check the firmness and correct
connection.
3. Close the medium pressure hose with your thumb.
4. Inhale, then hold your breath. No entry of air should be
perceived, otherwise check the fit of the mask. The ex-
haled air must escape through the exhalation valve with-
out resistance.
P
5. Repeat the tight fit test twice.
6. Connect self-contained breathing apparatus or line
breathing apparatus.
Alternative leak test, which allows you to keep the breathing
apparatus connected to the self-contained breathing appara-
tus and the mask:
1. Close cylinder valve.
2. Inhale all air from the system, then carry out leak test.
3. Open the cylinder valve again.
There are two methods of checking the masks with RA, PE and ESA
connections:
with connected breathing apparatus or respirator filter
without breathing filter or breathing apparatus. This check does
not include the tight fit of the connection between mask and
breathing apparatus or mask and respirator filter.
Dräger FPS 7000
Leak test with breathing filter or breathing apparatus connected:
1. Screw breathing apparatus or respiratory filter into the
connector until it is tightly seated. Have a second person
check the firmness and correct connection.
2. Either use your thumb to close the medium pressure
hose or the heel of your hand to close the filter opening.
RA 3. Inhale, then hold your breath. No entry of air should be
PE perceived, otherwise check the fit of the mask.
The exhaled air must escape through the exhalation
valve without resistance.
4. Repeat the tight fit test twice.
5. Connect self-contained breathing apparatus or line
breathing apparatus, if necessary.
1. Insert breathing apparatus or screw respiratory filter into
the connector until it is tightly seated.
2. Turn and pull the breathing apparatus to check for tight
fit. Have a second person check the firmness and correct
connection.
3. Either use your thumb to close the medium pressure
hose or the heel of your hand to close the filter opening.
ESA
4. Inhale, then hold your breath. No entry of air should be
perceived, otherwise check the fit of the mask.
The exhaled air must escape through the exhalation
valve without resistance.
5. Repeat the tight fit test twice.
6. Connect self-contained breathing apparatus or line
breathing apparatus, if necessary.
(Certified by Dekra Exam)
Use
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