Dräger Panorama Nova PE/ESA, Instructions For Use Manual

Page: 14 / 20

14
Testing
Test the full face mask in accordance with the test and maintenance
intervals.
Test and maintenance intervals
The following details are recommendations based on the BGR 190
applicable in Germany. Observe your own national guidelines.
Visually inspect the speech diaphragm
z
Remove the speech diaphragm (see “Replacing the speech
diaphragm or O-ring” on page 16).
Visually inspect the inhalation valve
z The inhalation valve is visible in the connector. Check by blowing
into it that the valve disc moves freely. If necessary, replace the
valve disc.
Work required on a full face
mask
Be
fo
re
us
e
Af
te
r u
se
Every 6
mon
th
s
Every 2
years
Every 4
years
Every 6
years
Check by the wearer X
Visually inspect, check correct
function and leak-proofing X
X
1)
1) For airtight packed masks, every 2 years.
Cleaning and disinfection X
X
2)
2) For airtight packed masks, otherwise every 6 months.
Replace the exhalation valve
disc X
Replace the speech diaphragm X
Visually inspect the exhalation valve
z Pull off the exhalation valve cover from
the connector.
z Pull one arm outwards and remove the
spring clamp.
z Hold the valve disc by the nipple and lift
out of guide.
z The valve disc and seat must be clean and undamaged. Clean or
replace if necessary.
z Moisten the valve disc with water and refit. When the seat is horizon-
tal, the valve disc must slide into the guide under its own weight.
z
Fit the spring clamp and spring so that both arms engage laterally.
The spring clamp is marked "L"= left and "R" = right and fits at an
angle.
Leak tests
Test equipment and test accessories: Testor (R 53 400)
1)
,
Quaestor
1)
, adapter (R 53 345), exhalation valve plug (R 53 346).
(1) Checking for leak tightness
z Moisten the inside of the face seal with water and fit the mask to
the test head (see “Fitting the full face mask and checking its
operability” on page 12).
z
Inflate the test head until the face seal fits snugly all round.
z
Seal the connector with the adapter.
z Generate a negative pressure of 10 mbar.
The full face mask is considered leak-proof if the pressure change
after 1 minute is no more than 1 mbar. If not, perform (2).
(2) Test with sealed exhalation valve
z Remove the exhalation valve.
z Insert the exhalation valve plug and secure with the spring clamp.
z Generate a negative pressure of 10 mbar.
z If the pressure change is less than 1 mbar after 1 minute, remove
exhalation valve plug, insert a new valve disc and repeat the leak
test. If not, perform (3).
1) Note the corresponding Instructions for Use.
00621453.eps
L R