Operating Principles; Mask Components - DPI sekur IDEA STD Manuel D'utilisation Et D'entretien

IDEA... = Model (lower side of the grid of the threaded connector)
= Manufacturer's identification LOGO (on the front side of the facepiece)
xx = Year of manufacture of the mask (on the front straps of the harness)
CE 0426 = CE marking and identification number of the testing authority which carries
out the control on production (on the faceblank)
4334.XXXX = Spare part reference number (example)
EN 136:98 = Relevant Norm (on the facepiece)
CL 3 = Class of the mask according to EN 136 (on the facepiece)
Faceblank distinguishing colour:
BLACK = IDEA ...
YELLOW = IDEA ... SIL (Silicone)
moulding date, on the driving piston for SP models and on the rubber valve for models
standard
moulding date in the central area
code number in the central area
moulding date in the inner area
code number in the inner area
name of the mask in the lower part externally
model of the mask in the lower part externally
code number of the mask in the lower part externally
code number of the frame (two parts) on the upper side
xx = last two digits of the year of production on the inner part centrally
42010068 = code number of the phonic device on its circumference
4 Operating principles
The air inhaled through the inhalation valve in the connecting piece is fed into the mask and
flows in the inner part of the visor thus preventing misting. The air enters the inner mask
through the check valves and after use by operator, is exhaled through an exhalation valve
in the connecting piece. On the models that contain the letters SP/A, the exhalation valve is
equipped with a compression spring which allows the proper operation of positive pressure
breathing apparatuses connected to the masks. This valve creates an overpressure inside the
mask thus ensuring a high level of safety.
5

Mask components

The masks IDEA are composed of the elements represented and indicated in figure 1 and in
figure 4 for the STD version. The version SP/A differs for the exhalation valve, for the threaded
connector and for the grid, as shown in figure 3.
Complete mask
(Rubber)
Exhalation valve
Head harness
Inner mask
Theaded connector grid
Upper visor frame
Phonic device
19
EN
EN