Vyaire VELA, Руководство по обслуживанию

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7-4
Chapter 7: Operational Verification Procedure
33373-001 Version A
Adjust all other controls and alarm limits out of range of operation to
either “OFF” or min/max
settings for alarms.
1. Allow ventilator to operate at these settings for one minute. Verify Ve, Vte, I:E Ratio, Breath
Rate, Ppeak, PEEP and Inspiratory Time are showing on the calibrated flow/volume analyzer.
2. Check ventilator monitored values and calibrated flow/volume analyzer for the following
parameters:
Minute Volume 6L ± 1.2 L
Tidal Volume 500 ml ± 100 ml
I:E Ratio 1:6.3 ± 10%
Breath Rate 12 bpm ± 2 bpm
PIP Equal to manometer ± 5 cmH
2
O
PEEP 5 cmH
2
O ± 2 cmH
2
O
Inspiratory Time 0.68 sec ± 0.5 sec
NOTE
If this test does not pass, do not continue with performance test. Turn to Chapter 9
“Troubleshooting” section under
“Monitored Volume Test”
and follow the troubleshooting guide
for the failed test.
7.2.3 FiO2 Performance Test
NOTE
Perform this test only after the
“Delivered Volume Test”
has been completed and the results are
acceptable with tolerances provided.
1. Ensure that a 50 PSIG Oxygen gas source is connected to the High Pressure inlet assembly on
the rear of the VELA.
2. Continue to operate ventilator with current settings from monitored volume tests. Tee in a
calibrated Oxygen analyzer.
3. Select FiO2 monitor window on left side of screen to read monitored O2 results.
4. With control setting at 21% the monitored value and the external calibrated Oxygen analyzer
should read 20-22%.
5. Adjust % O2 control setting to 30%, the monitored value and the external calibrated Oxygen
analyzer should read 27-33%.
6. Adjust % O2 control setting to 60%, the monitored value and the external calibrated Oxygen
analyzer should read 55-65%.
7. Adjust % O2 control setting to 90%, the monitored value and the external calibrated Oxygen
analyzer should read 85-95%.
8. Adjust % O2 control setting to 100%, the monitored value and the external calibrated Oxygen
analyzer should read 95-100%.
9. Adjust % O2 control setting to 21%, the monitored value and the external calibrated Oxygen
analyzer should read 20-22%.