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ETV 1991
CONTROL PANEL
Page 14
21.06.2018
Battery Exchange
Switch off the terminal.
Loosen the marked screws and open the
housing.
The corresponding screws are:
2 pieces
Combination pan-head screw M3x6
10 pieces
PT screws countersunk head KA40x10
Remove the battery and replace it with the
new battery.
The negative pole of the battery must be on
the board side.
The exchange must take place within 5
minutes with the terminal switched off,
otherwise zero voltage safe data (SRAM,
date and time) will be lost.
Close the housing and switch on the termi-
nal.