15
Facepiece
Production date inside the facepiece,
Identifying code inside the facepiece
Grid of the threaded connector
Name of the mask in the lowe part
Visor frame
Identifying code
The products Declaration of Conformity is available on the web site www.dpisekur.com in the specific section.
4.
Operating principles
The air inhaled through the inhalation valve in the connecting piece is fed into the mask and flows in the inner
side of the visor thus preventing misting. The air enters the inner mask through the septa of the halfmask and
after use by operator, is exhaled through the exhalation valve.
5.
Mask components
C700 masks are made up by the components represented and indicated in the figure 1 ,figure 2, figure 8, figure
9 and figure 10.
6.
Donning and tightness test
C700 series masks are available in medium size which fits well most faces.
For the wearing with the rubber harness, follow the instruction below:
6.1
Using the head harness buckle seat adjustment, loosen the five harness buckle
6.2
Unfold the two buckle of the neck harness
6.3
Place the mask in front of the face holding it by the neck harness. Rest the chin in the special hollow of the
mask and pass the harness over the head
6.4
Check that the pentagonal area where the arms of the harness meet is positioned in the nape of the neck.
If it is too far away, lengthen the front buckle (or shorten it if it is too low) and adapt the tension of the
other harness arms to the new position.
6.5
Then, pull the harness buckle in this order "Nucal", "Temporal" and "Frontal". The neck and temporal straps
of the harness should be adjusted in pairs and with two hands if possible. Finally, pull the front harness. The
harness should be adjusted in such a way that a uniform pressure from the sealing edge of the mask is felt
on the face.
6.6
After putting on the mask and before use, carry out a leak test. Close the mouthpiece with the palm of your
hand and inhale so that the mask adheres to the face. There should be no noticeable air infiltration
anywhere on the mask. The leak test must be repeated 2-3 times. The mask can only be used after passing
the leak test.
6.7
To remove the mask, loosen the harnesses in the same order used in the donning procedure. Push the
buckles forward with your thumb. Remove the mask from the chin and then remove it from the head.
Warning
: if the tightness test described in paragraph 6.6 is not passed, repeat it until the tightness is
achieved. The use of the mask that does not have a sufficient seal can cause serious damage to the user's
health.
7.
Maintenance, cleaning and disinfection
In order to maintain efficient C700 masks, periodic maintenance, cleaning and disinfection is need, following the
table below.
7.1.
Checks and periodic maintenance
The user must ensure that periodic maintenance checks are carried out on the respiratory protection device as
defined in the instruction manual provided by the manufacturer.
Operation to carried out
Before release for
use
Prior each
use
After
use
Every 6
month
Every
year
Every 2
year
Every 6
years
Cleaning and disinfection
X
X (1)
Visual inspection:
•
Presence of scratches or cracks on the visor
•
Visible signs of overheating (2)
X
X
X
