34 Troubleshooting Welch Allyn Spot Vital Signs
3. Power off Spot Vital signs and enter the Configuration Mode (see “Internal
configuration mode” on page 20).
4. Press the Mode button until Cal displays in the LCD window.
5. Press the Start button to close the valve and use the bulb to manually inflate the
device to 250 mmHg and confirm Spot Vital Signs meets the leak test specification
(see “Leak test” on page 73).
Temperature functional check
Use the 9600 Plus Caligration Tester to check the thermometer accuracy (see
“Temperature functional check” on page 22).
Masimo SpO
2
functional check
Use the Masimo Tester to check the functionality of the SpO
2
module of Spot Vital Signs
(see “Masimo” on page 24).
Nellcor SpO
2
functional check
Use a Nellcor approved simulator to check the functionality of the SpO
2
module of Spot
Vital Signs (see “Nellcor” on page 24).
Communication option check
1. Select Tools > Options and confirm that communication port and the cable are
selected.
2. Select Test and confirm that the Spot Vital Signs responds accordingly.
If an error is present then confirm that there are no obstacles in the way of the IR
Data Interface. Re-try the test.
If the error is still prsent then change the Main PCB (page 44).
Functional testing procedures
Perform the functional testing procedures in this section before returning Spot Vital Signs
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 Vital Signs. This is the pass/fail criteria to determine if the device is
within calibration. If the differences between Spot Vital Signs 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 25.
2. Enter the “Internal configuration mode” on page 20. Aftering viewing the software
versions, press the Mode button until CAL displays in the LCD window. Spot Vital
Signs automatically performs an auto zero once the LCD window displays CAL.
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