2 Safety Instructions
Rev. 03/2019 15
Explosion hazard!
Do not disconnect any connectors while the system is live. If the system is
located in a hazardous area, there is a risk of explosion.
Explosion hazard!
Never remove the equipment while the unit is connected to a power source.
If the system is located in a hazardous area, there is a risk of explosion.
Explosion hazard!
Do not remove or replace the fuse while the equipment is live.
Risk of burning!
The surfaces of the system may heat up to high temperatures.
Operational safety!
All connector screws and screw joints must be adequately tightened. Refer
to the section Mechanical Data on page 19.
After the service cover on the device has been opened, e.g. to complete the
wiring, it must be refitted so that it is in the same alignment as it was prior
to opening. The USB connection must always be below the service screw. If
the mounting is rotated, maintaining the indicated protection classes, as
well as compliance with CSA-Class I, Division 2 (Group C, D) is impaired.
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