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

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Troubleshooting A-FGC1
B-72
Document No. 8502854
10-19 O
2
Test valve is
open.
Scavenging valve
is opened
partially during
the test.
Checks that the
scavenger valve is
opened and
verifies that the
Inlet valve is not
leaking.
Measures the counter pressure and by-pass flow. After
opening up the scavenging valve, the unit checks that the
Cassette pressure is at least 30mmHg lower than the counter
pressure and that the by-pass flow has not decreased by more
than 100 ml/min. If scavenging valve fails will 14% be stored in
the system check error history. If the inlet valve test fails will
17% be stored in the system check error history.
If failed at 14%
Check cassette pressure sensor
calibration on the A-FGC1 diagnostic page
by verifying that cassette pressure minus
install pressure = equal to counter
pressure (+30mmHg). If not equal
calibrate Cassette pressure sensor, Agent
flow and repeat the test
Scavenging valve does not open. Check
valve in the A-FGC1 diagnostic page.
Replace scavenging valve.
If failed at 17%
Indicates that the Inflow close valve leaks,
Replace inflow close valve.
% of
agent
delivery
test
Which valves
are operated
What is being
tested
Description of test Technical suggested actions