Welch Allyn CP 100 12-Lead Resting Electrocardiograph - User Manual - Manual (Page 65)

Directions for Use Chapter 6 Maintaining the Electrocardiograph 61
Replacing the Battery
If you have recharged the battery and the electrocardiograph still does not turn on when
unplugged, or if the battery loses its charge quickly, replace the battery as follows.
(For part number, see
“Accessories” on page 6.)
1. Unplug the electrocardiograph from AC power if connected.
2. Turn the electrocardiograph upside-down.
3. Unscrew and remove the battery door. See Figure 38 .
4. Lift out the battery. See Figure 39 .
5. Inspect the fuse. See Figure 40 .
• If the “Z” wire is intact, go to Step 6 .
• If the “Z” wire is broken or dark, replace the fuse. See “Replacing the Battery
(DC) Fuse” on page 63.
Figure 40. Battery Fuse Plugged In
Figure 38. Removing the Battery Door Figure 39. Lifting Out the Battery
“Z” wire