Welch Allyn 901133, Service Manual

Page: 26 / 123

PREVENTIVE MAINTENANCE
24
Battery Health
Document the health of the battery in percent form. (Recommend replacement when under 70%; the ELI 380 will
notify user when lower than 70%.)
Running on DC & AC power (connect AC power cord)

Verify AC power LED indicator illuminates (located above power button). Record Results on PMR

Verify AVG Current value gradually changes from negative to positive (the value will remain at 0 if
the battery is fully charged). Record Results on PMR

Verify Charging is Yes (if current is flowing to battery). Record Results on PMR
Battery Performance Information

With a new, fully charged lithium-ion battery, the ELI 380 is typically capable of acquiring more than
30 resting ECGs with 1 performed every 10 minutes before a recharge is necessary. When two lithium-ion
batteries are used, more than 60 resting ECGs may be acquired with 1 performed every 10 minutes before a
recharge is necessary.

For optimal performance, connect the ELI 380 to AC power whenever it is not in use. The device can be
used with AC power while simultaneously recharging the battery/batteries.
Functional Testing
MAIN SCREEN:

The MAIN SCREEN is displayed when the unit is first turned on.

The LCD will timeout and go dark in 5 minutes if there is no ECG or user input. Touch the touchpad to re-
activate.
SERVICE SCREEN:

To access the SERVICE SCREEN begin at the MAIN SCREEN.

Press .

Press
ADVANCED,
then enter the Admin password.

Press SERVICE .
CONFIGURATION SCREEN:

To access the CONFIGURATION SCREEN begin at the MAIN SCREEN.

Press .

Press
ADVANCED,
then enter the Admin password.
Display and Standby Mode

Press the ON button and verify the text on display is clear and legible and there are no flickering or missing
lines/pixels. Record Results on PMR

Close (tilt) the LCD Display towards the writer. After a few seconds verify the LCD backlight turns off.
Open the LCD Display and verify the unit comes out of the standby mode returning to the MAIN
SCREEN. Record Results on PMR

The following procedure applies to the ERGO variant:
1.
Rotate the screen 90 degrees away from the front user face to the right and verify that the LCD
backlight is on with no flickering or missing lines/pixels. Record Results on PMR
2. Rotate the screen 90 degrees away from the front user face to the left and verify that the LCD
backlight is on with no flickering or missing lines/pixels. Record Results on PMR
3. Tilt the display out until a mechanical stop is reached. Verify the stop is reached at 120 degrees.
Record Results on PMR
Auto Test

From the Service Screen, select
Auto Test
. Verify the auto test completes one cycle without an error.