Pneumatic / Electronic Systems - Weinmann MEDUMAT Easy CPR Descripción Del Aparato E Instrucciones

11.3 Pneumatic / electronic systems

Description of function
Pneumatic
V1
P
Pressure regula-
2.7-6bar 2.5bar
Electronic
system
Pp Pp
R R
4bar 100mbar 10mbar
LED bar graph
3/2-way valve
V2
V3
Booster valve
with metering facili-
Pp
M/T
R
MPU speech
O/I
module
The input pressure at p is max. 6 bar. This is reduced
by V1 to 2.5 bar dyn. This is the input pressure at V2,
V3 and V4.
Inspiration
An electrical impulse to V2 opens V3 and closes V4.
Oxygen flows through the ventilation hose to the pa-
tient valve. If the ventilation pressure in the patient
valve reaches >100 mbar, the relief valve V5 will
open.
Expiration
A fresh electrical impulse closes V2. The relief valve
V4 opens and vents the ventilation hose. The patient
breathes out through the patient valve.
Relief valve
V4
RF/MV
Flow
Coupling element
Respiratory frequen-
Demandflow
setting
Battery
Sound
source
V5
100mbar
Patient valve
Ventilation
hose V6
Pressure
measuring
hose
EN
Technical data
Exp.
Insp.
71