Siemens Plant Central Clock TC100 - Manual (Page 27)

Operation planning
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SICLOCK ® TC100 Operating Instructions
Use in residential areas, and operation in the public network
If you use the SICLOCK TC100 in residential areas or in the public network, you
must ensure that it complies with the limit value class B according to EN 55022
with regard to the emission of radio interference.
The following measures are recommended to ensure the interference complies
with limit value class B:
• Install the SICLOCK TC100 in grounded control cabinets / control boxes
• Use filters in the supply lines
Usage with additional measures
SICLOCK TC100 must not be used in the following exemplary cases without
additional measures:
• At locations with a high level of ionizing radiation
• In aggressive environments caused, for example, by
− The development of dust
− Corrosive vapors or gases
− Strong electric or magnetic fields
− Damp and wet rooms
− Severe oscillations, shocks, vibrations
− High levels of radiant heat
• In systems that require special monitoring, such as.
− Elevators
− Electrical plants in potentially hazardous areas
One additional measure could be to install the SICLOCK TC100 in a cabinet or
housing.
Note
This is a Class A system. The equipment may cause RF interference in residential
areas or the public network. In this case, the operating company may be required
to take appropriate measures.