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

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Troubleshooting A-FGC1
Document No. 8502854
B-67
Fresh Gas
Unit meas.
Error
FGC Big
flow error
If status
remains for 2
minutes the A-
FGC goes to
Safe state.
Vaporizer flow ( agent
flow) is 33% bigger than the
mixer flow (O
2
+ sides. The
alarm is disabled if the flow is
changing.
Flow measurement failure in some of
the four measurement units (O
2
,
sidegas, bypass or cassette flow)
A-FGC1 Big flow error may also indicate
that the O
2
or side gas Zeroing valve
have failed.
1) Perform a flow comparison on the A-FGC1
diagnostic page to see if there are any mismatches
between the flows.
2) Calibrate A-FGC1
3) Replace faulty Flow measurement unit and
calibrate the A-FGC1
x
Fresh Gas
Unit meas.
error
FGC Contr.
press fail
1) Counter pressure sensor
output voltage is 0V or 10V at
total flows < 10 l/min.
2) Measured counter pressure
is 0 at bypass flow > 1 l/min.
Faulty counter pressure sensor. 1) Check the counter pressure sensor on the
diagnostic page.
2) Replace the counter pressure sensor.
x
Decrease
fresh gas
flow
FGC Max.
flow viol
The measured total flow is > 20
l/min
1) Regulators wrong adjusted.
2) Flow measurement failure.
1) Check and adjust the regulators.
Check the flow measurement units. x
Message in
Normal
Screen
Message in
diagnostic
page
Error condition Possible cause Recommended
action
Err
log