Troubleshooting 49
8.1 Batteries
17: Button cell for auxiliary power
18: Fuse protecting against internal
short circuit
19: 3,6 V lithium battery for main
power supply to
MEDUMAT Standard
17
19
18
MEDUMAT Standard is fitted with two batteries
which should always be replaced simultaneously.
MV too low
Wrongly selected ventilation
parameter
Check ventilation parameters
MEDUMAT Standard defective Arrange for repair
Unusually high oxygen
consumption
Leak in oxygen supply Seek and eliminate leak (7.2, page 41)
MEDUMAT Standard
cannot be switched off
User error
Keep switch depressed for at least
2 seconds.
Manometer needle not
standing at “0“
Manometer needle needs
adjustment
Adjust (8.3, page 51)
Test bag is not sufficiently
inflated during functional
check, disconnection
alarm
Ventilation parameters wrongly
selected
Correct ventilation parameters
Patient valve not working
properly
Check lip membrane
Pressure gauge hose not fitted Fit pressure gauge hose
No stenosis alarm when
patient valve is closed
during functional
check(see “7.4 Checking
the minute volume”, item
6–9)
Patient valve not working
properly
Check lip membrane
Defect Cause of defect Elimination
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