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medin Medical Innovations GmbH
Adam-Geisler-Str. 1
D-82140 Olching
OP_medinSINDI EN
Rev 14 Stand 30.10.2017
5.3. Error messages during operation
Alarm Text
∆t
Meaning and reaction of medinSINDI
®
CPAP Low
3 sec
Disconnection of pressure line / Flow
20 sec
leackage at prong / mask / circuit
turn up flow
CPAP High
60 msec
flow to high
Alarms incorrectly set
Patient exhaling heavily against the
CPAP pressure
5 sec
flow to high
Alarms incorrectly set
Patient exhaling heavily against the
CPAP pressure
FiO
2
Low
5 sec
check gas supply
Correctly adjust oxygen concentration
and confirm with "Confirm FiO
2
"!
FiO
2
High
5 sec
check gas supply
Correctly adjust oxygen concentration
and confirm with "Confirm FiO
2
"!
Gas supply Alarm
30 sec
Loud acoustic alarm
mechanical, one gas is missing
Check gas supply:
- Air connected?
- Oxygen connected?
- Difference between oxygen/air > 1
bar?
- Difference between oxygen/air 3.5 – 6
bar?
- Pressure setting of pressure reducer
(if
available) set to 3.5 bar?
"Battery low"
Connect power supply unit to charge
battery
Table 2: Errors and causes
Alarm condition:
Measured sound pressure
level (dB)
A-weighted background level (dB)
High priority (tall/ flashing)
69
53
Medium priority (small/ flashing)
67
52
Low priority (Tone)
67
52
If the medinSINDI
®
is restarted, the alarms are reset to these levels. This cannot be changed by the user.
Warning
When setting the alarm thresholds for CPAP pressure high, CPAP pressure low and oxygen concentration, it
must be ensured that the alarm thresholds are set so as to be as limited as necessary for the individual patient,
since otherwise these alarms are unusable.
