5
OPERATION
14
SMARTMAC 200 W
www.krohne.com
09/2017 - 4005599202 - AD Ex SMARTMAC 200 en R02
5.1 Start-up
Start-up may only occur when the display and operating unit:
•
is correctly installed in the system and connected.
•
has been checked for the proper state with regard to its installation and connection
requirements.
The user of the system must have it checked before start-up in compliance with the national
regulations for checks before startup.
5.2 Operation
The display and operating unit must be operated in such a way that it remains within the
maximum and minimum permissible temperatures and the electrical limit values.
The display and operating unit may only be operated if the equipment parts necessary for safety
are effective in the long run, and are not rendered inoperable during operation.
The display and operating unit may be operated during operation.
The display and operating unit (protection type intrinsic safety) may even be opened in an
energised state in hazardous areas. Work on electrical connections (e.g. configuration via the
HART
®
interface) is also permitted in an energised state. Close the terminal compartment
immediately after work has been completed.
5.3 Electrostatic charge
In order to avoid ignition hazards due to electrostatic charge, painted display and operating units
shall not be used in areas with:
•
processes that generate strong charges,
•
mechanical friction and cutting processes,
•
spraying of electrons (e.g. in the vicinity of electrostatic painting systems).
•
pneumatically conveyed dust is exposed.
WARNING!
Electrostatic charging of the housing surface by friction must be avoided.
The display shall be cleaned only with a moist cloth.
