Endress+Hauser Proline Prosonic Flow 91W - Protective Ground Connection

Wiring Proline Prosonic Flow 91W
28 Endress+Hauser
A0005838
Fig. 25: Connecting the transmitter (aluminum field housing). Cable cross-section: max. 2.5 mm

(AWG 14)
a Electronics compartment cover
b Cable for power supply: 85 to 250 V AC, 11 to 40 V DC, 20 to 28 V AC
c Ground terminal for power supply cable
d Terminal connector for power supply:
No
. 1–2 ä 28 (terminal assignment)
eSignal cable
f Ground terminal for signal cable
g Terminal connector for signal cable:
No
. 24–27 ä 28 (terminal assignment)
h Service connector
i Ground terminal for potential equalization
4.2.1 Terminal assignment
4.3 Protective ground connection
The sensor must be connected to the protective ground of the plant.
The plant grounding guidelines must be taken into account.
eb
2127
–
25
–
26
+
24
+
L1
(L+)
N
(L-)
e
g
b
d
h
c
f
b
a
e
i
Terminal No. (wiring diagram å 25)
24 (+) 25 (–) 26 (+) 27 (–) 1 (L1/L+) 2 (N/L–)
Pulse output HART current output Power supply