KROHNE CORIMASS G-MFM 4085 EEx EN - Manual (Page 7)

7
2. Electrical installation
2.1 Location and connecting cables
Location
Do not expose the compact flow meter to direct sunlight. Install a sunshade if necessary.
Connecting cables
To conform to protection category requirements, observe the following recommendations:
–
Fit blanking plug PG 16 and apply sealant to unused cable entries.
– In case if the terminal area is Eed, please use approved blanking plug.
– Do not kink cables directly at cable entries.
– Provide water drip point (U bend in cable).
– Do not connect rigid conduit to cable entries.
– If cables are a tight fit, enlarge inside diameter of cable gland by removing the appropriate
ring(s) from the seal.
2.2
Electrical Connection on converter without intrinsically safe outputs
– Note information given on the instrument dataplate (voltage, frequency)!
–
Electrical connection in conformity with IEC 364 or equivalent national standard.
–
Special regulations apply to installation in hazardous areas. Please refer to separate "Ex"
installation instructions.
– The PE protective ground conductor must be connected to the separate U-clamp
terminal in the terminal box of the signal converter.
–
Do not cross or loop the cables in the terminal box of the signal converter. Use separate
(PG or NPT) cable glands for power and output cables.
– Ensure
that the screw thread of the round cover on the terminal box is well greased at
all times.
NOTE: The grease used must be non-corrosive to aluminium; typically it must be resin- and
acid-free.
– Protect sealing ring from damage.
5 6 4 4.1 4.2 11 12
N L AC
Outputs - + DC
connection PE
see Sect. 2.2
Power and signal connections for MFC 085 K
Please ensure that the information about power given on the
dataplate corresponds to the locally available mains voltage.