Functional Tests
User Manual 9-5
DMR V4C 3.3 (User Manual) V-4 06-May-2022
6. Allow ventilation to continue for 10 breaths.
7. Using the adjustment knob turn the knob all the way to the right.
8. Confirm that the oxygen percentage delivered is ≥94%.
Note:
If FiO
2
cannot be reached recalibrate the FiO
2
sensor and repeat the test.
9.2.3 Test 3 — Low FiO
2
Test
To perform a Low FiO
2
test, do the following:
1. Ensure V4C-O2E Oxygen Mixer is installed per Section 4.1, Installation and Assembly. Ensure the venti-
lator is set-up per its instruction manual.
2. Run this test with an ADULT patient limb. Connect the patient end of the patient circuit to a test lung.
3. Calibrate the FiO
2
sensor per the manual of the compatible ventilator or FiO
2
sensor. A single step cal-
ibration can be used for this test.
4. Press the VENTILATION ON/OFF key to start ventilation.
5. Set the ventilator to the following settings:
• P A/C mode
• Breath rate: 15
• IP: 14
• PEEP: 9
• Rise time: 1
• Insp time: 0.8
6. Using the adjustment knob turn the knob all the way to the left.
7. Confirm that the oxygen percentage delivered is <26%.
Note:
If FiO
2
cannot be reached or if the Check FiO
2
Sensor alarm sounds, recalibrate the FiO
2
sensor and
repeat the test.
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