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Compensated M12 Field
Mount Thermocouple Connectors
M12-FM Series
U Field Mount
U Includes Thermocouple Pins
and Sockets
U Improves Accuracy Over
Standard Connectors
U Provide Convenient Connection
to Equipment M12 Connections
U Available as Right Angled or
Straight Connections
U IP67 Rated
U Maximum Connector Temperature
85°C (185°F)
The field mount M12 connectors can be attached to
existing sensor or extension cables with #18 to #24AWG
conductors and a 4 to 6 mm (0.16 to 0.24") cable diameter
in the field by means of screw type connections. Male and
female connectors, with straight or right angled connection
styles provide a wide selection of connection options.
M12-J-S-F-FM
M12 connectors
shown actual size.
M12-J-S-M-FM
When tested against connectors containing
standard brass or copper pins and sockets,
these thermocouple connectors maintained
measurement accuracies even when exposed
to temperature gradients.
Color Codes
Thermocouple Type ANSI Color Code (Positive/Negative) IEC Color Code (Positive/Negative)
K
J
T
E
Yellow/Red Green/White
White/Red Black/White
Blue/Red Brown/White
Purple/Red Rose/White
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Ø19.1 (0.75)
38.1
(1.50)
41.9
(1.65)
Ø19.8
(0.78)
M12-X-R-M-FM
Where X=TC Type
M12-X-S-M-FM
Where X=TC Type
Ø18.3
(0.72)
10.4 (0.41)
59
(2.32)
Keyway
Location
Keyway
Location
TC#1+
TC#1–
Single Element
(shown without back shell)
Dual Element
(shown without back shell)
TC#1+
TC#1–
TC#2–
TC#2+
Ø19.1 (0.75)
12.84 (0.505)
Hex Typical
38.1
(1.50)
Female Connector
54.1
(2.13)
Ø19.1 (0.75)
38.1
(1.50)
59
(2.32)
10.4 (0.41)
Male Connector
36.8
(1.44)
Ø19.8
(0.78)
Keyway
TC#1+
TC#1–
(shown without back shell)
Location
Single Element
12.84
(0.505)
Hex
Typical
M12-X-R-F-FM
Where X=TC Type
TC#1+
TC#1–
(shown without back shell)
M12-X-S-F-FM
Where X=TC Type
Keyway
Location
Dual Element
TC#2–
TC#2+
Ø18.3
(0.72)
41.9
(1.65)
Dimensions:
mm (inch)
Ø = diameter
Ø19.8
(0.78)
Where X=TC Type
Single Element
(shown without back shell)
12.84 (0.505)
Hex Typical
M12-X-R-M-FM
Keyway
Location
TC#1+
TC#1–
TC#2–
TC#2+
(shown without back shell)
Ø18.3
(0.72)
M12-X-S-M-FM
Where X=TC Type
Keyway
Location
Dual Element
Thermocouple Connector
Model No.** Thermocouple Type Positive Terminal Negative Terminal
M12-K-(*)-M-FM
M12-J-(*)-M-FM
M12-T-(*)-M-FM T
M12-E-(*)-M-FM
M12-K-(*)-F-FM
M12-J-(*)-F-FM J
M12-T-(*)-F-FM
M12-E-(*)-F-FM E
* Specify “-S” for straight connector or “-R” for right angled connector.
** For dual thermocouple connectors, the model number has two letters for the type (ex. M12-KK-S-M-FM).
K
J
Chromel Pin Alumel Pin
Iron Pin Constantan Pin
Copper Pin Constantan Pin
E
K
Chromel Pin Constantan Pin
Chromel Socket Alumel Socket
Iron Socket Constantan Socket
T
Copper Socket Constantan Socket
Chromel Socket Constantan Socket
TC#1+
TC#1–
To Order
Model No. Description
M12-K-R-M-FM
M12-J-R-M-FM
M12-T-R-M-FM
M12-E-R-M-FM
M12-K-S-M-FM
M12-J-S-M-FM
M12-T-S-M-FM
M12-E-S-M-FM
M12-K-R-F-FM
M12-J-R-F-FM
M12-T-R-F-FM
M12-E-R-F-FM
M12-K-S-F-FM
M12-J-S-F-FM
M12-T-S-F-FM
M12-E-S-F-FM
Ordering Examples: M12-K-R-M-FM, Type K thermocouple right angled M12 male connector.
M12-K-S-F-FM, Type K thermocouple straight M12 female (socket) connector.
Type K thermocouple right angled M12 male connector
Type J thermocouple right angled M12 male connector
Type T thermocouple right angled M12 male connector
Type E thermocouple right angled M12 male connector
Type K thermocouple straight M12 male connector
Type J thermocouple straight M12 male connector
Type T thermocouple straight M12 male connector
Type E thermocouple straight M12 male connector
Type K thermocouple right angled M12 female (socket) connector
Type J thermocouple right angled M12 female (socket) connector
Type T thermocouple right angled M12 female (socket) connector
Type E thermocouple right angled M12 female (socket) connector
Type K thermocouple straight M12 female (socket) connector
Type J thermocouple straight M12 female (socket) connector
Type T thermocouple straight M12 female (socket) connector
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Type E thermocouple straight M12 female (socket) connector
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