Endress+Hauser Prothermo NMT81 - Configuring NMT81 with NMS5;NMS7;NRF590; Configuring NMT81 with NMS8 x;NMR8 x;NRF81

Electrical connection Prothermo NMT81
52 Endress+Hauser
6.5 NRF590 terminals
NRF590 has three sets of intrinsically safe local HART terminals.
RTD
24V
mA
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
D+
S+
S-
D-
OPT1
OPT2
OPT3
OPT4
+
+
+
+
H
H
H
P
-
-
-
-
-
-
+
+
4
3
2
1
A
C
B
A0038533
 36 NRF590 (intrinsically safe) terminals
A HART sensor (mutually connected as a single HART fieldbus loop on the inside)
B Fieldbus loop
C Only in Micropilot S series
A signal HART line cannot be connected from NMT81 to terminals 30 and 31. These
terminals are an intrinsically safe 24 V
DC
power supply for the Micropilot S Series
(FMR53x, FMR540).