Chapter 5
Diagnostic Mode and Troubleshooting
REF 1029568 Rev A BiPAP® Focus™ Ventilator Service Manual © Respironics, Inc. 5-11
Sensor Readings The sensor readings screen (Figure 5-13) allows:
View sensor readings: view these readings to see the real-time effect of
changes to voltages, temperature and control signals.
Figure 5-13: Diagnostic Mode: Sensors Screen
Table 5-1 defines sensor readings for the BiPAP Focus.
NOTE: Hi = 1 and Lo = 0
Sensor Readings Defined
Diagnostics Label Actual Measured Value Description
+3.3V +3.3V_MEAS Measurement of +3.3V
Supply count limits: 883 to 976
Voltage (V) = counts * 0.003662
+5V +5V_MEAS Measurement of +5V
Supply count limits: 884 to 977
Voltage (V) = counts * 0.005371
+12V +12V_MEAS Measurement of +12V supply
Count limits: 889 to 983
Voltage(V) = counts * 0.012817
Table 5-1: Sensor Readings Defined (Sheet 1 of 4)
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