Endress+Hauser Proline Prowirl 72 Bedienungsanleitung Seite 19

Proline Prowirl 72/73 FOUNDATION Fieldbus
"
#
Endress+Hauser
Electrical connections
Fig. 1: Electrical connections Prowirl 72 FOUNDATION Fieldbus resp. Prowirl 73 FOUNDATION Fieldbus
A = FOUNDATION Fieldbus cable
B = Ground terminal in the wiring compartment (between the stripped FOUNDATION Fieldbus cable and the
ground terminal, the cable shielding should not exceed a length of 5 mm)
C = Terminal connector (1 = FF +; 2 = FF –)
D = Ground terminal for potential equalisation (external, only relevant for remote version)
Caution!
• Ground potential equalisation must exist between the safe and hazardous area.
• The transmitter is to be securely connected to the potential equalization system using
either the transmitter's esternal screw terminal (D), or the ground terminal (B) in the
wiring compartment.
• Between the stripped FOUNDATION Fieldbus cable and the ground terminal, the
cable shielding should not exceed a length of 5 mm.
• Alternatively, the sensor and the transmitter (compact version) or the connection
housing can be connected to the potential equalization system via the pipeline
when a ground connection according to regulations can be assured.
The table below contains the values that are identical for all versions, irrespective of
the type code.
Transmitter Prowirl 72***-******H****K; Prowirl 73***-******H****K
Terminals
Designation
Functional values: U
B
I
B
P
Service adapter
The service adapter is exclusively for connection to E+H approved service interfaces.
Warnung!
It is not permissible to connect the service adapter in explosive atmospheres.
Cable entries
Choice of thread for cable entries, M20x1.5 or ½" NPT or G ½" thread (see also the
figures on Pages 2 and 3, number ➂).
£
5 mm
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–
+
1 2
D
1 (+)
FOUNDATION Fieldbus
<
B
C
F06-73PBxxxx-11-00-00-xx-000
2 (–)
9...32 V DC
16 mA
≤ 1 W
0
7