®
6 Checks and maintenance
© F. Stephan GmbH SA-112-0106V1.0-WEM-GB 53
6 Checks and maintenance
6.1 Every time before starting the device
The functions of the device must be checked every time before it is
started.
Device type: SN: Date: Signature:
WHAT HOW NOMINAL
ACT
O
2
spare bottle Open bottle valve O
2
pressure O
2
> 70 bar
ALIA intake pressure 3 – 6 bar
If necessary, close bottle valve and fit a full
gas bottle.
Visual inspection of gas type colour
coding.
Note any specific inhouse ruling!
(from 30.07.2006)
⇒
⇒
Iso colour code (31.12.2009 latest or
neutral colour code / gas type sticker in
place?
O
2
(oxygen ) white
AIR (compressed air) black-and-white
ZGA gas connection
leads
Mechanical unmistakeability :
angled plug and gas connections
O
2
AIR
Double flowmeter Check tightness
- close all metering valves
Open O
2
metering valve
Open AIR metering valve
⇒
⇒
⇒
Suspended bodies in individual measuring
tubes must return to zero
Flow of min. 30 l/min
Flow of min. 30 l/min
Power supply/
battery status
Visual inspection mains connection
Disconnect mains connection
⇒
⇒
⇒
⇒
Intact, strain relief in place
Mains symbol LED lights up "green"
Battery symbol LED lights up "green" or
"orange"
Device continues to operate, alarm "Power
supply fail"
Automatic system
test
Main switch "ON"
System test
⇒
System test successful
System tightness Semi open = "No"
AIR flow = 4 l/min
Alarm limits Pmax 10 + 60 cmH
2
O
Patient part Plateau = 50 mbar
PEEP = 3 mbar
Respiration mode CMV
Insp = 1 s
Exp = 4 s
Semi open "Yes"
⇒
⇒
Monitoring Pmax over 40 cmH
2
O
Takes approx. 10 s for internal fresh gas
reservoir to fill, the monitoring Pmax over
40 cmH
2
O
Inspiration pressure
(plateau)
Expiration pressure
(PEEP)
Close Y-piece
⇒
⇒
Monitoring Pmax shows adjusted
inspiration pressure
Monitoring PEEP shows adjusted
expiration pressure
Apnea monitoring Adjust respiration form C/BKUP
⇒
After 30 s, "Apnea" alarm
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