Datex-Ohmeda Anesthesia Delivery Unit S/5 Technical Reference Manual page 382

Datex-Ohmeda ADU
Failure type 1
Backup CPU error
EEPROM values
Index
15
16
17
18
19
Reason:
Backup processor fails during self-check test.
The test checks that the backup CPU is able to
close the inspiration valve fast enough.
Suggested action:
Change CPU board in A-EV1.
Failure type 2
Sensor error, Case 1
EEPROM values
Index
15
16
17
18
19
Reason:
Flow sensor value is too high at start-up. The
ventilator is measuring a constantly high flow
through the machine even when the inspiration
valve is closed (= current 0 to valve).
Suggested action:
Start the machine and check if there is a
constant flow in the machine. If this is the case:
change the inspiration valve, otherwise change
the flow sensor board.
C-56
Value
13
Start flow for backup
CPU test
End flow for backup
CPU test
0 (not used)
0 (not used)
Value
14
11 (INSP_FLOW_ERR)
0 (not used)
0 (not used)
0 (not used)
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