Datex-Ohmeda Anesthesia Delivery Unit S/5, Техническое справочное руководство

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Troubleshooting A-EV1
Document No. 8502855
C-71
Auto mode leak test
52,62,71,
82
fgf > 2 l/min Fresh gas flow
detected.
The Fresh gas flows not property closed. Close flow
controls and repeat the test.
TIMEO and FAIL = Interruptions and Timeout errors
Any Test taken to long or
test has been
interrupted by Main
software.
Action Repeat test.
Discn = Disconnection errors
27 Ppat <= 100mmH
2
O Not enough pressure
after 60 seconds.
-
error / %
no
Technical reason Possible cause
Suggested action
Leak = Leak errors
8 12 mmH
2
O > Ppat > 21
mmH
2
O
Bellows not filled during
the start-up phase of
the test. Pressure is not
enough high after 15
sec.
- Leak in circuit tubing's.
- Circuit tubing's bad connected.
- Absorber leaks or wrong connected.
- Insp. or exp. valve cover is leaking.
- Bellows block or bellows chamber not locked
correctly.
- Bellows block chamber seal leaks
- Overflow valve cap not tighten sufficiently.
- Overflow valve or cap O-ring worn-out.
- The Y-piece is not properly occluded.
- Compact block leaking
- Bellows not mounted correctly.
- Check with other tubing's and bellows block.
- Following Leak Tracing Chart for Auto Leak Test in
the “Technical Reference Manual” .
13,33,53,
73
Ppat < 120 mmH
2
O Leak detected during
one of the four
measurement cycles.
Minimum patient
pressure.
24,44,64,
84
Ppeak > Ppat + 100
mmH
2
O
Leak detected during
one of the four
measurement cycles.
Big leak, the pressure is
lower than Ppeak – 100
mmH
2
O.
25,45,65,
85
Ppeak > Ppat + 75
mmH
2
O
Leak detected during
one of the four
measurement cycles.
Moderate leak, the
pressure is lower than
Ppeak – 75 mmH
2
O.
100 Leakage >150 ml/min. Test have gone through
the entire test but
leakage bigger than
150ml/min.
error/
% no
Technical reason Possible cause
Suggested action