
SCALANCE MUM856-1
Operating Instructions, 08/2021, C79000-G8976-C628-02
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Assembly and disassembly
4
Safety notices
When installing the device, keep to the safety notices listed below.
CAUTION
Minimum distance to antennas
Fit the device so that there is a minimum clearance of 20 cm between antennas and
persons.
NOTICE
Improper mounting
Improper mounting may damage the device or impair its operation.
•
Before mounting the device, always ensure that there is no visible damage to the device.
•
Mount the device using suitable tools. Observe the information in the respective section
about mounting.
WARNING
Improper disassembly
Improper disassembly may result in a risk of explosion in hazardous areas.
For proper disassembly, observe the following:
•
Before starting work, ensure that the electricity is switched off.
•
Secure remaining connections so that no damage can occur as a result of disassembly if
the system is accidentally started up.
WARNING
If a device is operated in an ambient temperature of more than 50 °C, the temperature of
the device housing may be higher than 70 °C. The device must therefore be installed so that
it is only accessible to service personnel or users that are aware of the reason for restricted
access and the required safety measures at an ambient temperature higher than 50 °C.