Welch Allyn Propaq LT 802LT0N, Service Manual

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58 Functional verification Welch Allyn Propaq LT Vital Signs Monitor
Charge time (optional procedure)
A normally discharged battery pack typically requires 3 hours (4 hours maximum) to fully
charge, whether the monitor is on or off during charging.
1. Plug the monitor with the discharged battery into a powered cradle, in an environment
with temperature in the range 0

C to 40

C.
2. Note the time required for the status indicator on the cradle to change from green to
off. This may be timed during
Step 16 on page 57.
System tests
With the battery fully charged:
1. Power-on the monitor, observing the power-up sequence to verify that all three LED
indicators light and that all three audio tones sound.
2. Start a new patient.
3. Highlight and press .
4. Navigate to Setup > Service > Voltages/Show Info and press .
5. Verify that the displayed (measured) values for each supply are within the ranges
shown on the screen.
6. Navigate to Service > Display > Pixel Test and press twice.
7. Using the navigation arrows, cycle through the six colors on each screen half,
verifying that all pixels are displayed in all colors and with uniform accuracy and
brightness.
8. Press to exit the Pixel test.
9. Go to the Buttons test and press twice.
10. Push each button and verify that all button presses are shown.
11. Press and simultaneously to exit the Buttons test.
12. Navigate to Service > Battery > Battery Info .
13. Verify that the charger state is 8 .
14. Exit the Service menu.
ECG
1. Connect a 5-lead ECG cable between the monitor and the ECG simulator.
2. Set the simulator for Lead II , normal sinus , 80 bpm , 1 mv .
3. Press as needed to view a waveform display.
4. Highlight ‘ II ’ and press to the display the Waveform Source drop-down menu.
Note
A normally discharged battery pack is one on which a monitor has recently run for
more than 5 minutes just before a low-battery shutdown.