Vyaire VELA, Service Manual

Page: 61 / 111

7-2
Chapter 7: Operational Verification Procedure
33373-001 Version A
7.1.4 Select LCD Test
1. Press the Extended Functions Icon. Press Vent Set Up Icon.
2.
Select “Dim Screen” and verify screen intensity level dims
3.
Select “Bright Screen” and verify the screen returns to normal intensity
4.
Select “Video Normal” and verify Screen has turned white
5.
Select “Video Inverse” and verify the screen returns to normal operation
6. Press the Exit icon on the touch screen.
7.1.5 Leak Test
1. Connect a non-disposable test circuit and test lung to the unit. Completion of the test takes
about 15 seconds
2. Press the Leak Test Icon. The test lung should inflate and hold the pressure for approximately
10 seconds.
3. Verify test passes.
NOTE
If any test does not pass, do not continue with performance test. Turn to Chapter 9
“Troubleshooting” section under
“UVT Test”
Tests and follow the troubleshooting guide for the
failed test.
7.1.6 FiO2 Monitor Calibration
1. Press the Extended Functions Icon.
2. Press the Vent Set Up icon and verify the Fio2 Monitor is Enabled. Press the Exit icon.
3. Press the FiO2 Mon Calibration Icon.
4. Select the Start Ambient Calibration icon and verify the calibration has completed and is valid.
This calibration can take up to 3
–5 minutes.
5. Select the Start 100% Calibration icon and verify the calibration has completed and is valid.
6. Press the Exit icon.
7. On the UVT screen press the Exit icon and verify the unit restarts in regular operating mode.
8. Disconnect the Leak Test circuit and connect a suitable permanent Patient Test Circuit (Do not
use disposable circuits for testing purposes) using the Siemens test lung P/N 33754 to continue
the “Performance Tests”
7.2 Performance Test
1. Ensure that a 50 PSIG Oxygen gas source is connected to the High Pressure inlet assembly on
the rear of the VELA. Connect the VELA power cord to a properly grounded AC outlet.
2. Set Ventilator parameters as follows:
Mode: Volume Assist Control
Volume: 500 ml
Peak Flow 20 lpm
Breath Rate 12 bpm
PEEP 0 cmH
2
O
3. Adjust all other controls and alarm limits out of range of operation to
either “OFF” or min/max
settings for alarms. .