Siemens MASS 2100 Operating Instructions Manual page 60

Connecting
5.1 Basic safety notes
Connecting device in energized state
Risk of explosion in hazardous areas.
● Connect devices in hazardous areas only in a de-energized state.
Exceptions:
● Devices having the type of protection "Intrinsic safety Ex i" may also be connected in
● Exceptions for type of protection "Non-sparking nA" (Zone 2) are regulated in the relevant
Incorrect selection of type of protection
Risk of explosion in areas subject to explosion hazard.
This device is approved for several types of protection.
1. Decide in favor of one type of protection.
2. Connect the device in accordance with the selected type of protection.
3. In order to avoid incorrect use at a later point, make the types of protection that are not
Note
Electromagnetic compatibility (EMC)
You can use this device in industrial environments, households and small businesses.
For metal housings there is an increased electromagnetic compatibility compared to high-
frequency radiation. This protection can be increased by grounding the housing, see Basic
safety notes (Page 57).
Note
Improvement of interference immunity
● Lay signal cables separate from cables with voltages > 60 V.
● Use cables with twisted wires.
● Keep device and cables at a distance from strong electromagnetic fields.
● Take account of the conditions for communication specified in the Technical data
(Page 215).
● HART: Use shielded cables to guarantee the full specification according to HART.
60
WARNING
energized state in hazardous areas.
certificate.
WARNING
used permanently unrecognizable on the nameplate.
MASS 2100 & FC300 (FCT030)
Operating Instructions, 06/2017, A5E39789040-AA