WARNING
Hazardous contact voltage
Risk of injury through hazardous contact voltage when the device is open or not completely
closed.
The degree of protection specified on the nameplate or in Technical data (Page 215) is no
longer guaranteed if the device is open or not properly closed.
● Make sure that the device is securely closed.
DANGER
Toxic gases and liquids
Danger of poisoning when venting the device: if toxic process media are measured, toxic
gases and liquids can be released.
● Before venting ensure that there are no toxic gases or liquids in the device, or take the
appropriate safety measures.
WARNING
Loss of explosion protection
Risk of explosion in hazardous areas if the device is open or not properly closed.
● Close the device as described in Installing/mounting (Page 37).
WARNING
Opening device in energized state
Risk of explosion in hazardous areas
● Only open the device in a de-energized state.
● Check prior to commissioning that the cover, cover locks, and cable inlets are assembled
in accordance with the directives.
Exception: Devices having the type of protection "Intrinsic safety Ex i" may also be opened
in energized state in hazardous areas.
Commissioning
6.1 Basic safety notes
MASS 2100 & FC300 (FCT030)
92 Operating Instructions, 06/2017, A5E39789040-AA
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