Root NIBPT Chapter 16: Service and Maintenance
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Span Point Calibration
Span Point Calibration is performed when an NIBP module does NOT PASS the NIBP Module
Calibration Test, and after completing Zero Point Calibration. See the NIBP Module
Calibration Test on page 150 and Zero Point Calibration on page 152 before completing the
instructions below.
Note: This section is provided as a reference and intended for authorized service personnel
only.
1. After successful completion of Zero Point Calibration, press the back button in the
upper-left corner of the ZERO POINT CALIBRATION screen to go back to the
CALIBRATION menu screen.
2. Select SPAN POINT CALIBRATION .
3. Press Close Valve.
4. Use the hand bulb to apply exactly 250mmHg to the NIBP module, then press
Calibrate.
• A "Success" message will appear if the calibration was successful. Go to
step 5.
• If a "Result Failure" message appears, repeat the test by applying
250mmHg to the NIBP module and pressing Calibrate. If the "Result
Failure" message is repetitive, contact Masimo Technical Services. See
Masimo Technical Services on page 160.
5. After successful Span Point Calibration, press the back button to go back to the
CALIBRATION menu screen.
6. Press CALIBRATION TEST .
7. Press Test.
8. Apply various pressures (0mmHg to 280mmHg) to the NIBP module with the
hand bulb.
9. Compare the NIBP module pressure to the manometer pressure:
• If the NIBP module pressure and manometer pressure differ WITHIN the
±3mmHg tolerance, then the NIBP module has PASSED the calibration test
and no further action is required. Go to step 10.
Note: For pass criteria, see the NIBP Module Calibration Test on page 150.
• If the NIBP module pressure and manometer pressure still differ BEYOND the
±3mmHg tolerance, contact Masimo Technical Services. See Masimo
Technical Services on page 160.
10. Disconnect the manometer, 500mL bottle or cuff wrapped around solid object,
and hand bulb from the NIBP module.
11. Power OFF the manometer.
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