Horner APG XLt OCS - Manual (Page 92)

CH. 17 MAN0878-04-EN
August 12, 2009 Page 92 of 100 ECN # 979
17.2.2 Battery Replacement
The XLe/XLt uses a CR2477 (Part No. HE-BAT14) coin lithium battery produced by a variety of
manufacturers.
Below are the steps to replace the battery.
1. Make sure the user program and any data stored in retentive memory is backed up.
2. Disconnect all power from the XLe/XLt unit including I/O power.
3. Remove the four screws on the back of the XLe/XLt unit and remove the back cover.
4. Remove the I/O board (if present) by lifting it straight up.
5. Remove the old battery. It may require a small flat blade screwdriver to lift it from the holder.
6. Dispose of the battery properly; see the above warning on disposal regulations.
7. Slide the new battery into the holder. Make sure the battery is inserted with the proper polarity.
The top tab of the battery holder should contact the positive (+) terminal of the battery.
8. Place the I/O board back into the case by aligning the connecting and pressing straight down.
9. Place the back cover back on the unit.
10. Place the screw back into the hole and turn the screw slowly counter clockwise until “clicks” into
the threads. This will prevent the screw from being cross threaded. Now turn the screw clock-
wise until the cover is firmly secured. Repeat this process for all four (4) screws.
11. Apply power to the unit. Check that the battery error is no longer reported. If the unit still reports
the error, remove the battery immediately and contact Technical Support (page 96).
Figure 17-1 – Replacing the back-up battery
Warning: Disposal of lithium batteries must be done in accordance with federal, state, and local
regulations. Be sure to consult with the appropriate regulatory agencies before disposing batteries. In
addition, do not re-charge, disassemble, heat or incinerate lithium batteries.
Warning: Do not make substitutions for the battery. Be sure to only use the authorized part number to
replace the battery.
001XLE054
Warning: Lithium Batteries may explode or catch fire if mistreated
Do not recharge, disassemble, heat above 100 deg.C (212 deg.F) incinerate, or puncture.