8-14
Common Control Cards
Coral FlexiCom 6000 Installation Manual
Comm
on Cont
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f General Descri
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8
A new lithium battery can maintain power to memory circuitry and real-time clock for
approximately 90 days. The battery is
not
recharged by the system power. Therefore,
if the battery is nearly depleted, the contents of the memory must be backed up and the
battery replaced. The backup battery includes an insulator that is removed before
inserting the card into its slot. Refer to the layout drawing of every control card for the
location of the battery insulator position and the direction of removal. For 32GC cards,
an alarm message is displayed on the PI terminal. See
32GC Card Lithium Battery Test on
.
Testing the Lithium Battery
The battery voltage, tested under load, can be used to determine its state of charge.
Voltage measured across an unused battery connected to the memory circuitry must be
between 3.30 and 3.35 volts. If the voltage is less than 2.50 volts, replace the battery.
For first time use, remove the protective battery insulator. See the layout drawing of
the relevant control card.
Replacing the Lithium Battery
1.
Carefully lift the battery with your thumbnail.
2.
Insert the new battery with the + (positive) symbol appearing on top.
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6
Lithium Backup Batteries
Do not use any metal tool to release or insert the battery. Doing so could result in a
short circuit and damage the battery.
Explosion and Environmental Hazards.
There is a danger of explosion if the battery is replaced incorrectly. Replace the battery
only with the same or equivalent type recommended by the manufacturer. Dispose of
used batteries according to requirements specified by the battery manufacturer and/or
local regulatory agencies.