Spot Vital Signs LXi Service Manual - Frank's Hospital Workshop

40 Troubleshooting Welch Allyn Spot Vital Signs LXi
6. Use the bulb to manually inflate the device to 250 mmHg and confirm Spot LXi meets
the leak test specification (see “Leak Test” on page 81).
Temperature Functional Check
Use the 9600 Plus Caligration Tester to check the SureTemp Plus or Braun ThermoScan
PRO 4000 thermometer accuracy (see “Temperature Functional Check” on page 29).
Masimo SpO 2 Functional Check
Use the Masimo Tester to check the functionality of the SpO 2 module of Spot LXi (see
“Masimo SpO2 Functional Check” on page 32).
Nellcor SpO 2 Functional Check
Use a Nellcor approved simulator to check the functionality of the SpO 2 module of Spot
LXi (see “Nellcor SpO2 Functional Check” on page 32).
Functional Testing Procedures
Perform the functional testing procedures in this section before returning Spot LXi into
service.
Verify you are using a calibrated pressure meter with an accuracy of better than ±3 mmHg
and that the calibration certificate is traceable to NIST.
Subtract the rated accuracy of the pressure measurement standard from the ±3 mmHg
rated accuracy of Spot LXi. This is the pass/fail criteria to determine if the device is within
calibration. If the differences between Spot LXi and the pressure measurement standard
are within the pass/fail criteria at all specified pressures then the device is within
calibration.
1. Follow the steps in “Connections” on page 34.
2. Enter the “Internal Configuration Mode” on page 24. Use the Navigation and Select
buttons to select Blood Pressure > BP Calibration Check.
3. Connect to the 500 cc cylinder.
4. Select Test > Calibration in the repair software. The dialog box displays the device
manometer reading, battery reading, and valve and pump status.
5. Use the Navigation and Select buttons to select Blood Pressure > BP Calibration
Check.
6. Verify the valve on Spot LXi is closed (the menu choice shows “Open Valve”).
7. Use the hand bulb to verify Spot LXi is within calibration specification at the target
pressures of 250±5 mmHg, 150 ±5 mmHg, 50 ±5 mmHg, and 0 mmHg with each
reading within ±3 mmHg of the target pressure except for the 0 mmHg reading which
is within ±1.0 mmHg.
8. Set the power supply to 5.6 Vdc (+0.3/-0.0 Vdc). Verify the voltage reading meets the
specification (see “Voltage Calibration” on page 82).
After completing this test, return the power suppy to 6.5 Vdc (+0/-0.25 Vdc).