Respironics BiPAP - Sensor Readings

Chapter 5
Diagnostic Mode and Troubleshooting
REF 1029568 Rev B BiPAP Focus Ventilator Service Manual © Respironics, Inc. 5-7
5.6 Sensor Readings The Sensor Readings screen (Figure 5-7) displays real-time system voltages,
A/D counts, temperature, and status (1=On, 0=Off)
Figure 5-7: Diagnostic Mode: Sensor Readings Screen
Table 5-1 describes sensor readings.
Parameter
Measured value
A/D counts
Status
Table 5-1: Sensor Readings Screen
Parameter Description
+3.3V +3.3 V supply measurement.
Range: 883 to 976 counts
Voltage (V) = counts * 0.003662
+5V +5V measurement.
Range: 884 to 977 counts
Voltage (V) = counts *0.005371
+12V +12V supply measurement.
Range: 889 to 983 counts
Voltage(V) = counts *0.012817
+18Vin +18V (mains input) measurement.
Range: 882 to 1008 counts
Voltage(V) = counts * 0.019043
+18V Boost +18V_Boost supply measurement.
Range: 923 to 1020 counts.
Voltage(V) = counts * 0.019043