Locating And Eliminating Leakages - Dräger Primus SW 4.5n Instructions For Use Manual

Leakage Man.Spont.
– Leak test in the complete system.
– Indication of leakages >150 mL/min and with
red/yellow/green test result indicator.
A
N
M
L
Primus determines the current leakage of the
breathing system and breathing hoses. The system
tolerates leaks of up to 150 mL/min.
NOTE
For leaks of more than 150 mL/min:
Check the components of the breathing system
and the breathing hoses. Repair any leaks and re-
peat the leak test.

Locating and eliminating leakages

The self test incorporates a leak test. If this test is
not passed, the leaks must be remedied before
continuing the test by pressing the rotary knob.
A leak test can also be carried out later in Standby
with the leak test key, see page 119.
Possible causes of leaks include e.g.:
– Absorber not firmly screwed to the breathing
system
Instructions for use Primus SW 4.5n
B
D
C
F
E
K
H
J
G
I
– APL valve is not firmly fixed to the breathing
system cover (damaged) or not set to 30 hPa
(cmH O)
2
– Breathing bag, breathing hoses, Y-piece, or mi-
crobial filter not connected correctly or dam-
aged
– Flexible arm for breathing bag (optional) not fit-
ted correctly on the breathing system, sealing
ring soiled or damaged
– Water trap not connected
– Sample line for gas measurement not con-
nected or leaky (there may be a kinked bend in
the connections)
– Connections for the sample line for gas meas-
urement cracked or defective
– O-ring of the inspiratory and expiratory ports
missing, soiled, or damaged
– Flow sensors not fitted correctly or damaged,
rear O-ring missing
– O sensor not (or not correctly) connected (for
2
electrochemical O
2
– Breathing system cover not mounted correctly,
not all five sealing screws closed
– Visible damage on valves or seals of the breath-
ing system metal valve plate
– Breathing system not mounted correctly, not all
three sealing screws closed
– Ventilator diaphragm defective or not fitted cor-
rectly (Dräger legend must be visible from
above)
– 15 mm circuit plug for connecting the Y-piece
scratched or damaged
– Vaporizer fill or drain connections leaky or
opened, vaporizer not mounted correctly, O-ring
missing or handwheel not set to 0.
Getting started
measurement only)
85