iTHERM TM412
Endress+Hauser 9
Connectors
Endress+Hauser offers a wide variety of connectors for the simple and fast integration of the
thermometer into a process control system. The following tables show the PIN assignments of the
various plug connector combinations.
Abbreviations
#1 Order: first transmitter/insert #2 Order: second
transmitter/insert
i Insulated. Wires marked 'i' are not connected and are
insulated with heat shrink tubes.
YE Yellow
GND Grounded. Wires marked 'GND' are connected to the
internal grounding screw in the terminal head.
RD Red
BN Brown WH White
GNYE Green-yellow PK Pink
BU Blue GN Green
GY Gray BK Black
Terminal head with one cable entry
Plug 1x PROFIBUS PA
1x FOUNDATION™
Fieldbus (FF)
8-pin
Plug thread M12 7/8" 7/8" M12
PIN number 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 5 6 7 8
Electrical connection (terminal head)
Flying leads Not connected (not insulated)
3-wire terminal
block (1x Pt100)
RD RD
WH
RD RD
WH
RD RD
WH
RD RD
WH
i
4-wire terminal
block (1x Pt100)
WH WH WH WH WH WH WH WH
6-wire terminal
block (2x Pt100)
RD
(#1)
1)
RD
(#1)
1)
WH (#1)
1)
RD
(#1)
1)
RD
(#1)
1)
WH (#1)
1)
RD
(#1)
1)
RD
(#1)
1)
WH (#1)
1)
WH BK BK YE
1x TMT 4 to 20
mA or HART
®
+ i - i + i - i + i - i
+
(#1)
i
-
(#1)
i
i
2x TMT 4 to 20
mA or HART
®
in
the terminal
head with a high
cover
+
(#1)
+
(#2)
-
(#1)
-
(#2)
+
(#1)
+
(#2)
-
(#1)
-
(#2)
+
(#1)
+
(#2)
-
(#1)
-
(#2)
+
(#2)
i
-
(#2)
i
1x TMT
PROFIBUS
®
PA
+
i
-
GND
2)
+
i
-
GND
2)
Cannot be combined Cannot be combined
2x TMT
PROFIBUS
®
PA
+
(#1)
-
(#1)
+ -
1x TMT FF
Cannot be combined Cannot be combined
- +
GND i Cannot be combined
2x TMT FF
-
(#1)
+
(#1)
PIN position and
color code
A0018927
1) Second Pt100 is not connected
2) If a plastic housing TA30S or TA30P is used, insulated 'i' instead of grounded GND