TX150 S7 Operating Manual 31
Important information Safety instructions
● Install the screw removed installation/detaching Internal Options in 
former device/position. To use a screw of the different kind causes a  
breakdown of equipment.
● The installation indicated on this note is sometimes changed to the 
kind of possible options without notice.
Batteries
V CAUTION!
● Incorrect replacement of batteries may lead to a risk of explosion. The 
batteries may only be replaced with identical batteries or with a type 
recommended by the manufacturer (see the technical manual for the 
system board).
● Do not throw batteries into the trash can. They must be disposed of 
in accordance with local regulations concerning special waste.
● The battery must be disposed of in accordance with local regulations 
concerning special waste.
● Replace the lithium battery on the system board in accordance with 
the instructions in the technical manual for the system board.
● All batteries containing pollutants are marked with a symbol (a 
crossed-out garbage can). In addition, the marking is provided with 
the chemical symbol of the heavy metal decisive for the classification 
as a pollutant:
Cd Cadmium 
Hg Mercury 
Pb Lead