Message, cause and remedy
Messages in the ventilation system
Message must be acknowledged
Messages during
the self-test
Cause
Remedy
Leak IPPV = xxx mL
• Indicates a leak in the ventilation system.
Acknowledge.
For leaks greater than 175 mL/min
Repair any leak and repeat the test.
(at 30 mbar) in subsystem 1/2.
See flow chart on page 164.
Leak remedied?
• Alternative question to
»Leak accepted«
.
When acknowledged, carries out a new leak
test with user prompting.
Leak test IPPV
Test is performed for subsystems 1 and 2. For information.
See flow chart on page 164.
Leak test MAN
This test is performed on subsystem 3
For information.
(Vapor, breathing bag, fresh gas branch).
See flow chart on page 164.
Mains switch off
The power switch has not clicked into the
Press the switch again.
ON position.
Malfunction No. ...
• Specifies an internal malfunction.
»MAN/SPONT.«
mode is automatically
selected. Cancel the continuous alarm tone
by acknowledging message.
Inform DrägerService, quoting malfunction No.
Malfunction
This message is immediately followed
See page 164.
by
»Malfunction No...«
.
P-sensor fault
• Pressure difference between the
Connect pressure measurement to breathing
breathing system and piston pump
system. Blow out any water in the system via
greater than 10 mbar
the piston pump measuring port. If necessary,
replace breathing system (V
6
, PEEP valve
does not open).
Piston defective
• Major leak in the piston pump.
Close the quick-release couplings.
Check lip seals in the housing floor.
Check the roller diaphragm.
Pneumatic interface
• Test control pressure in ventilator too low.
Check lip seals between piston pump and
breathing system.
Pressure supply ?
• Supply pressure too low
Switch on main gas switch.
or not available.
Check gas supply.
Remove piston
• Piston pump incorrectly installed.
Remove, confirm and wait for message
»Install piston!«
.
Roller diaphragm
• The roller diaphragm has been tested
Change piston pump or front roller
faulty
for leaks in several positions and has been diaphragm. Check lip seals and quick-release
found to leak. Inserted the wrong way
couplings. Observe the position of the
round?
manufacturing mark (see p. 126).
Self-test
Dialogue during the self-test
The ventilation system self-test is performed.
Service No. 4
• Front panel LED faulty.
Call DrägerService.
Service No. 22
• See »Check monitor«.
Call DrägerService.
Service No. 57
• Battery faulty. No audible warning in event
Call DrägerService.
of power failure.
Service No. 115
• Test control pressure too low.
Check lock and lip seal.
Pneumatic interface locked?
Call DrägerService.
112
