Welch Allyn CP 200 12-Lead Resting Electrocardiograph - User Manual - Manual (Page 87)

Directions for Use Chapter 7 Maintaining the Electrocardiograph 83
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 50 .
4. Lift out the battery. See Figure 51 .
5. Inspect the fuse. See Figure 52 .
• 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 85.
Figure 52. Battery Fuse Plugged In
Figure 50. Removing the Battery Door Figure 51. Lifting Out the Battery
“Z” wire