KROHNE ALTOFLUX IFM 5080 K EEx EN User Manual
Page 5
5
The functionality of the terminals for signal in/outputs is depending on the version of the
IFC090 i-EEx electronic-unit installed. Each version is equipped with a different pair of in/output
modules. Following versions are possible:
IFC090 i-EEx version
Order no.
MODIS module
Terminal designation
Ex-i1
2.11582.01
P-SA
FA-ST
I
⊥
I
B1
B1
⊥
Ex-i2
2.11582.03
P-SA
F-PA
I
⊥
I
D
D
⊥
Ex-i3
2.11582.02
P-SA
DC-I
I+
I
Ex-i4
2.11582.04
FA-ST
F-PA
B1
B1
⊥
D
D
⊥
Ex-i5
2.11582.05
FA-ST
DC-I
B1+
B1
Ex-i6
2.11582.06
FA-ST
FA-ST
B2
B2
⊥
B1
B1
⊥
The non-intrinsically safe terminals for the power supply 1L
and 0L
have to be wired conform
the relevant standard code of practice for electrical apparatus for use in potentially explosive
atmospheres, type of protection "e" (Increased safety) or type of protection "d" (flameproof
enclosure), depending on the type of protection used for the connection compartment concerned.
To have access to the terminals for the power supply circuit, the circular plate must lifted slightly at
one end and then rotated downwards, see notice on plate. After connection of the power supply
cable, the circular plate must be returned in its original position.
The IFM 5080 K/ i-EEx compact flowmeters may only be connected to a power supply with a
maximum prospective short circuit current of 1500 A.
The protective conductor or functional earth conductor of the power supply must be connected to
the earth-clamp in the terminal compartment. For this purpose the protective conductor must be
leaded through the rectangular opening in the metal partition plate to the earth terminal.
For the connection of the protective conductor also consult the standard Installation and Operating
manual.
The explosion protective flowmeters are always to be connected to the equipotential bonding
system through the external earth terminal placed at the underside of the converter housing.