TOUCH OPERATING PANEL
ETT 1962
18.05.2017
Page 15
7.1
Exchanging the Battery
1. It is not neccessary to save data on the microSD card. These are stored internally in a
battery-buffered memory module (SRAM).
2. Disconnect the ETT 1962 supply. After the supply is disconnected, the real-time clock is
buffered for at least 5 minutes after the battery has been removed.
3. Open the housing cover
screws with a screwdriver.
4. Open the 2 housing cover
screws on the top with a screw-
driver and lift the cover.