Electrical Connections - Endress+Hauser PROline Prosonic Flow 93 Ex-Dokumentation Zu Den Betriebsanleitungen

PROline Prosonic Flow 93
"
Endress+Hauser

Electrical connections

Power supply connection
➁
Esc
-
➀
➀ = power supply cable
Fig. 1:
➁ = ground terminal for potential equalisation
A = view A
➁
Fig. 2: Ground terminal for potential equalisation
Caution:
• The transmitter ➀ is to be securely connected to the potential equalization system
using the screw terminal ➁ on the outside of the transmitter housing.
• The sensor holders are to be grounded using the external screw terminal ➃. Alterna-
tively, the sensors can be connected to the potential equalization system via the pipe-
line 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 Prosonic Flow 93
Terminals
Designation
Functional values
Intrinsically safe circuit
U =
m
r
A
+
E
➀
1 2
L (+) N (–)
Power supply ➀
Protective earth
AC: U = 85...260 V
or Follow ground
AC: U = 20...55 V
network requirements
or for the facility.
DC: U = 16...62 V
Power consumption:
18 VA / 15 W
no
260 V AC
<
A
N(-)
L(+)
➃
3
Caution:
➀
7