ControlCare Panel PC SPC150
7 Maintenance
Hauser
19
7.3
Back-up battery
The back-up battery on the basic board supplies current to the Real Time Clock, CMOS memory
and SDRAM so that system information can be permanently stored, even when the board is
disconnected from the power supply.
7.3.1
Exchanging the battery
If the battery voltage is too low or the battery is empty, the values stored in the CMOS RAM, e.g.
date and time, will be incorrect. The Lithium battery must then be changed.
Fig. 7-3: Exchanging the back-up battery
Procedure
1 Observe the general precautions in Chapter 7.1.
2 Open the housing as described in Chapter 7.2.2.
3 Using a medium-size, flat blade screwdriver, carefully lift the battery until it can be released
from its socket.
4 Insert the new battery in the socket, such that the "+" mark is at the top, see Fig. 7-3.
5 Remount the housing hood and secure it with the screws.
"
Caution
• If the exchange is not done as described above there is a risk of explosion.
• The replacement battery must be of identical type or of a type recommended by the manufacturer.
• The lithium battery may not be trown away as domestic refuse. It can be sent back to the
manufacturer, the dealer or their agents, so that it can be recycled or properly disposed of.
Type
CR2032
Electrochemical system
Primary Lithium button cell
Nominal capacity
230 mAh
Nominal voltage
3 V
Diameter
20 mm
Height
3.2 mm
Weight
3 g
BR9
BR5 BR6 BR7
BR8
