AMX Axcent3 pro, Инструкция по эксплуатации, Страница: 29 / 34

Replacing the Lithium Batteries
25
Axcent
3
and Axcent
3
Pro Integrated Axcess Controllers
Replacing the Lithium Batteries
There are two lithium batteries on the controller’s circuit card with a life of approximately five
years. They protect stored commands against power loss. The batteries are not used when DC
power is supplied to the controller. You should write down the replacement date on a sticker or label
by adding five years to the date of installation, and then attach it to the rear panel for future
reference.
Contact your dealer before you replace the lithium batteries and verify they have a current copy of
the software program stored in the controller. This will avoid any inadvertent loss of data or a
service outage. To remove the controller’s top panel, you will need a Phillips screwdriver.
You need non-conducting pliers to remove the lithium batteries from the controller.
1. Discharge the static electricity from your body by touching a grounded object.
2. Disconnect all power and data cables from the controller.
3. Hold the controller in place, and remove the mounting hardware from the equipment rack.
Then, carefully remove the controller from the rack and place it on a flat surface.
4. Remove the six Phillips-head screws from the top panel on the controller. Then, remove the
screws from the left and right side of the Axcent
3
and Axcent
3
Pro controller as shown in
FIG. 11.
5. Remove the top panel and locate the batteries on the circuit card.
Static electricity can damage electronic circuitry. Before removing the touch panel
circuit card from the enclosure, discharge any accumulated static electricity from your
body and flat-blade tool by touching a grounded metal object.
FIG. 11 Top and side panel screw locations
Top panel screws
Side panel screws
Axcent
3
Controller
Axcent
3
Pro Controller