Endress+Hauser NRF81 - Page 25

Tankside Monitor NRF81 Electrical connection
Endress+Hauser 25
"Operating mode" = "HART master"
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
E
G
F
1
1 3
2
2 4
HR
CDI
on
i
C
B
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
G
1
3
2
-
+
a
A0027936
 13 Active usage of the Analog I/O module in the HART master mode
a Up to 6 external devices with HART signal output
The maximum current consumption for the connected HART devices is 24 mA (i.e. 4 mA
per device if 6 devices are connected).
Connection of a RTD
A
CB
1 112 22
3 33
4 445 556 667 778 88
A0026371
A 4-wire RTD connection
B 3-wire RTD connection
C 2-wire RTD connection