Tankside Monitor NRF81 Electrical connection
Endress+Hauser 19
6.1.1 Power supply
D
E
F
C
B
A
1
1
1
1 3
2
2 4
1
HR
CDI
WP
on
SIM
2
2
3
3
4
4
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
i
G
1
3
2
POWER
4
F
1
1 3
2
2 4
HR
CDI
WP
SIM
G
1
3
2
POWER
G1 N
AC 85...264 V
A0033413
G1 N
G2 not connected
G3 L
4 Green LED: indicates power supply
Supply voltage
85 to 264 V
AC
, 50/60 Hz, 28.8 VA
1)
The supply voltage is also indicated on the nameplate.
6.1.2 HART Ex i/IS interface
D
E
F
C
B
A
1
1
1
1 3
2
2 4
1
HR
CDI
WP
on
SIM
2
2
3
3
4
4
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
i
A0033414
E1 H+
E2 H-
3 Orange LED: indicates data communication
This interface always operates as the main HART master for connected HART slave
transmitters. The Analog I/O modules, on the other hand, can be configured as a
HART master or slave → 27 → 29.
1) maximum value; actual value depending on modules installed. 28.8 VA includes the nominal power, and the cabling specification has to meet
this value. On the other hand, the effective power consumption is 12 W.
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