User Manual Labtec ECO
page 9
www.labtec.de
Step
Activity
Comment
operating
elements
1.1.1
Close breathing connection to mask with sealing
plug.
If necessary, moisten the exhalation
valve of the mask.
1.1.2
Place the mask on the test head and tighten the
mask strap. Fill test head with head inflation
button
The inflation time varies from mask
type to mask type.
1.1.3
Set test vacuum with negative pressure button
to setpoint value
-
# mbar. Switch on stop watch.
Adjust the test pressure with the low
pressure relief button if necessary.
1.1.4
Read the pressure difference after # min. on the
display (LP) and compare with setpoint.
1.1.5
Deflate the test head with button for test head
deflation. Remove mask from test head.
1.2.1
Seal the exhalation valve of the mask with the
adapter. Close breathing connection to mask
with sealing plug.
Test only possible with tightly fitted
exhalation valve. Use the manufac-
turer's specific adapters.
1.2.2
Place the mask on the test head and tighten the
mask strap. Fill test head with head inflation
button
The inflation time varies from mask
type to mask type.
1.2.3
Set test vacuum with negative pressure button
to setpoint value
-
# mbar. Switch on stop watch.
Adjust the test pressure with the low
pressure relief button if necessary.
1.2.4
Read the pressure difference after # min. on the
display (LP) and compare with setpoint.
1.2.5
Deflate the test head with button for test head
deflation. Remove mask from test head.
1.3.1
Close breathing connection to mask with sealing
plug.
1.3.2
Place the mask on the test head and tighten the
mask strap. Fill test head with head inflation
button
The inflation time varies from mask
type to mask type.
1.3.3
Switch on vacuum pump with switch 10l/min
Exhalation to produce constant flow.
1.3.4
Read the opening pressure on the display (LP)
and compare it with the setpoint.
1.3.5
Switch off the pump by pressing the 10/lmin
Exhalation switch again.
1.3.6
Deflate the test head with button for test head
deflation. Remove mask from test head.
A 1 Testing of full face breathing masks
1.
Complete device (full face mask)
1.1
Leak test with open exhalation valve at
-
# mbar
1.2
Tightness test with closed exhalation valve at + # mbar
1.3
Opening pressure of the exhalation valve
