Covidien Puritan Bennett 540, User Manual, Page: 112 / 141

Specifications
A-12
Puritan Bennett 540™ Ventilator User’s Manual
A.7 Environmental
The following environmental conditions shall be observed:
Under extreme conditions of use that are beyond the recommendations above but within the limits of
a supply voltage of –20%, compared to the nominal temperature or the combination of a temperature
of 113 °F (45 °C) and humidity of 75% HR, the ventilator should not malfunction nor endanger the
user. However, operating the device for prolonged periods or repeatedly under such extreme
conditions could result in premature aging of components and more frequent maintenance.
A.8 Pneumatic
Table A-12. Environmental Conditions for Storage or Transport
Temperature Humidity-40 °F to 158 °F
(-40° C to +70° C) Atmospheric
pressure Altitude
-40 °F to +158 °F
(-40° C to +70° C)
10% to 95% RH 7.2 psi to 15.4 psi
(50 kPa to 106 kPa) -500ft to 13,000 ft
(-152 m to 3964 m)
Table A-13. Environmental Conditions for Operation
Temperature Humidity Atmospheric
pressure Altitude
+41 °F to10 4 °F (+5°C to 40°C) 10% to 95%
RH 8.7 psi to 16.0 psi
(60 kPa to 110 kPa) -500ft to 13,000 ft
(-152 m to 3964 m)
Table A-14. Airway Resistances
Inspiratory Expiratory
1.0 cmH
2
O at 30 lpm flow 0.5 cmH
2
O at 30 lpm
3.7 cmH
2
O at 60 lpm flow 1.1 cmH
2
O at 60 lpm
Table A-15. Patient Circuit Resistances
a
a. Includes exhalation valve
Adult Double Limb Pediatric Double Limb
≤
2 cmH
2
O at 60 lpm flow
b
b. Values obtained from the manufacturer’s (DAR) directions for use.
≤
2 cmH
2
O at 30 lpm flow
Table A-16. Air Inlet Resistance (Filter)
0.057 cmH
2
O (5.6 pascals)
a
at 24 lpm flow
a. All testing conducted on 3-inch diameter
test piece
Table A-17. Oxygen Inlet Specifications
Maximum pressure Maximum flow
7.25 psi (50 kPa) 15 lpm