Siemens Simatic IPC647C Operating Instructions Manual page 10

Safety notes
2.1 General safety instructions
Use of earphones/headphones
Excessive sound pressure of earphones/headphones can result in hearing impairment /
hearing loss.
Setting the volume and the equalizer to a setting other than the medium, will increase the
output voltage of the earphones/headphones and therefore the sound pressure value.
The use of factors that influence the output power of the earphones/headphones (such as
operating system, equalizer software, firmware, driver) and that are not approved by the
manufacturer, may increase the output voltage of the earphones/headphones and therefore
the sound pressure value.
Battery
This device is equipped with a Lithium battery. Batteries may only be replaced by qualified
personnel.
There is the risk of an explosion if the battery is not replaced as directed. Replace only with
the same type or with an equivalent type recommended by the manufacturer. Dispose of
used batteries in accordance with local regulations.
Risk of explosion and release of harmful substances!
Therefore, do not throw Lithium batteries into an open fire, do not solder or open the cell
body, do not short-circuit or reverse polarity, do not heat up above 100° C, dispose of in
accordance with regulations and protect against direct exposure to sunlight, moisture and
condensation.
10
CAUTION
WARNING
Operating Instructions, 12/2010, A5E02669337-02
SIMATIC IPC647C