Spacelabs 91518, Руководство по обслуживанию

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91518 Multigas Analyzer Service Manual 5-5
Troubleshooting
CAL GAS FAILED -
Check gas supply ■ The unit could not calibrate
the gas channel. ■ Repeat the span. Contact your
biomed or a qualified field
service engineer if the span fails
again.
AMBIENT PRESSURE
OUT OF NORMAL
OPERATING RANGE ■ The multigas analyzer has
measured a barometric
pressure outside the
environmental requirements
of 500 to 800 mmHg. ■ Compare the barometric
pressure reading in the Service
CAL Menu to a calibrated
barometer.
If the readings are within
tolerance of each other, then
move the multigas analyzer to a
location within environmental
requirements.
If the readings are out of
tolerance of each other and the
calibrated barometer reading is
within environmental
requirements, then replace the
gas unit (OEM gas module).
??? displays instead
of numeric end-tidal
CO
2
and inspired CO
2
partial pressure
(mmHg and kPa)
values, and the CO
2
waveform display is
removed
■ The multigas analyzer has
measured a barometric
pressure of 300 mmHg or
lower, or 975 mmHg or
higher, and partial pressure
units are selected. ■ Compare the barometric
pressure reading in the Service
CAL Menu to a calibrated
barometer.
If both readings are 300mmHg or
less, or 975mmHg or greater,
then move the multigas analyzer
to a location within
environmental requirements.
Else, replace the gas unit.
??? displays instead
of all CO
2
partial
pressure (mmHg and
kPa) values, and the
CO
2
waveform display
is removed
■ The multigas analyzer
barometric pressure
measurement is unknown
.
■
If the barometric pressure reading
in the Service CAL menu is ???,
and a valid reading does not
appear within 30 minutes
(warm-up period), then replace
the
gas unit
.
HIGH VALUES
OBSERVED ■ A CAL GAS calibration was
performed while there was a
leak in the sample circuit. ■ Check connections and check
for a broken water trap. Perform
leak test. Verify the anesthesia
delivery devices and vaporizer
calibrations.
■ Assure vaporizer accuracy.
Clinical Situation Possible Cause Solution