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Chapter 4
Replace Components
Replace the RTC Battery
42
c. Press the module fully into the slot to engage the lock levers.
See
Figure 11 on page
6. Reinstall the computer cover as detailed in
page
37.
7. Follow the steps for
The computers use nonvolatile memory that
requires an RTC battery to retain system
information when power is disconnected.
The 3V, 600 mAh, CR2450 cell lithium
battery is on the motherboard.
The battery must be replaced during the
life of the computer. Battery life depends
on the amount of time the computer is on,
or
on-time.
Table 1 - Battery Estimated Life Span
On-time (hrs/wk)
Estimated Battery Life Span (yrs)
0
4
40
5.5
80
7
If the computer does not retain the correct time and date, replace the battery.
ATTENTION: A risk of fire and chemical burn exists if the battery is not
handled properly.
• Do not disassemble, crush, puncture, or short external contacts.
• Do not expose the battery to temperatures higher than the rated
temperature ranges of 0...50° C (32...113° F).
• Do not dispose of a used battery in water or fire.
For safety information on how to handle lithium batteries, see Guidelines for
Handling Lithium Batteries, publication AG-5.4.
Follow these steps to replace the RTC battery.
1. Follow the steps for
2. Remove the computer cover as detailed in
page
36.
3. For 750R computers, lay the computer on its side (components
showing).
Rockwell Automation Publication 6177R-UM002F-EN-P - May 2018
40.
Reinstall the Cover on
Post-configuration on page
Pre-configuration on page
Remove the Cover on
35.
34.
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