Respironics BiPAP Service Manual page 116

Chapter 7
Testing, Calibration, and Performance Verification
7-22
Pressure and flow accuracy:
31. Positive flow accuracy: completely open the flow valve and follow the
onscreen prompts to achieve the various flow settings. Click OK only
after the flow has been set.
32. Negative flow accuracy: connect the patient tubing between the flow
valve outlet and the negative flow source. Turn on the negative flow
source and follow the onscreen prompts to achieve the various flow.
Click OK only after the flow has been set.
33. Turn off the negative flow source. Disconnect the patient tubing and
occlude the O port at the ventilator outlet port.
2
34. Pressure accuracy: the program instructs the ventilator to produce
specific pressures. Note the analyzer pressure readings and enter
them as prompted. (This step is performed twice to test the blower
and the flow valve.)
35. At the green PASS prompt on service PC, click OK to view the test
data sheet (Figure 7-24). Click OK on the print results button to print
the test results. Figure 7-25 shows an example of a print error.
NOTE: Service calibration procedures require a printer to be assigned to the
service PC: this can be an internal print location (for example, using
Adobe PDF) or a printer connected to the PC. If a print error occurs at the
end of the calibration, the calibration table is cleared and the calibration
must be repeated.
Figure 7-24: BiPAP Focus Test Results
BiPAP Focus Ventilator Service Manual © Respironics, Inc. REF 1029568 Rev B