Chapter 3
3-6 BiPAP® Focus™ Ventilator Service Manual © Respironics, Inc. REF 1029568 Rev A
Theory of Operation
Back Panel The back panel has three connection points and the On/Off switch.
• Nurse call station / serial communications port
•USB port
• AC/DC Power supply input & power cord relief clip
•ON/OFF switch
Figure 3-1: Back Panel
Specifications Default Settings
Settings: CPAP Mode
Nurse call station/serial
communications port
USB
port
AC/DC power
supply input
Power cord relief clip
ON/OFF switch
Shown in the
OFF position
S/T mode RR = 4/min
IPAP = 12 cmH
2
O I-Time = 1 sec
EPAP = 4 cmH
2
O Ramp Time = 0 min
Rise-Time = 2 Ramp Start = 4 cmH
2
O
CPAP
Continuous Positive Airway
Pressure
Range: 4-20 cmH
2
O (4-20 hPa)
Resolution: 1 cmH
2
O (1 hPa)
Dynamic accuracy: ±5 cmH
2
O (5 hPa)
Ramp Time
Period over which the ventilator
increases inspiratory pressure
from Ramp Start setting to
CPAP setting.
Range: 0-45 min.
Resolution: 5 min.
Accuracy: ±10% of setting