Covidien Puritan Bennett 700 Series, Service Manual

Page: 202 / 439

Performance verification
5-16 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual
5.6.10 Safety valve test (Test 9)
The safety valve test verifies the safety valve opens when the exhalation valve fails.
1. Verify ventilator settings are as follows.
1. Block exhalation valve exhaust port with no. 3 stopper.
2. Block patient wye with no. 2 stopper.
3. Verify safety valve opens when an inspiration is delivered. See Section 5.7 20.
NOTE:
For ventilators with software revision E or later, the safety valve opens then closes
again when it enters occlusion cycling mode. (On ventilators with earlier software than
revision E, the safety valve opens and remains open until you press ALARM RESET.)
4. Remove stoppers.
5. Remove test equipment, and return ventilator to original configuration.
Control Setting
HIGH RATE 100 breaths/min
HIGH TIDAL VOLUME 1500 mL
LOW INSP PRESSURE 3 cmH
2
O
LOW TIDAL VOLUME 5 mL
HIGH PRESSURE 15 cmH
2
O
LOW MINUTE VOLUME 0 L
Mode A/C, VCV (SQUARE flow waveform for software
revision J or later)
RESPIRATORY RATE 6 breaths/min
TIDAL VOLUME 1500 mL
PEAK FLOW 15 L/min
PLATEAU 0 s
PEEP/CPAP 0 cmH
2
O
TRIGGER SENSITIVITY 20 L/min
% O
2
21