Siemens SIMATIC PC 847B Operating Instructions Manual page 10

Safety instructions
2.1 General safety instructions
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.
ESD directives
Modules containing electrostatic sensitive devices (ESDs) can be identified by the following
label:
Strictly follow the guidelines mentioned below when handling modules which are sensitive to
ESD:
● Always discharge your body´s static electricity before handling modules that are sensitive
● All devices and tools must be free of static charge.
● Always pull the mains connector and disconnect the battery before you install or remove
● Handle modules fitted with ESDs by their edges only.
● Do not touch any wiring posts or conductors on modules containing ESDs.
10
CAUTION
WARNING
to ESD (for example, by touching a grounded object).
modules which are sensitive to ESD.
SIMATIC Rack PC 847B
Operating Instructions, 06/2008, A5E02203168-01