Rockwell Automation 1797-IRT8 FLEX Ex Thermocouple/RTD Module - Manual (Page 11)

FLEX Ex Thermocouple/RTD Input Module 11
Publication 1797-5.4 - June 2010
Example of 2-, 3-, and 4-wire RTD and Thermocouple Wiring to a 1797-TB3
Terminal Base Unit
16
34
1 2 0 3 4 5 6 7 8 9 10 11 12 13 14 15
A
B
C
Thermocouple Channel 4
2-Wire RTD Channel 1
3-Wire RTD Channel 2
4-Wire RTD Channel 3
1797-TB3
CJC = cold-junction compensation thermistor
Attention: Keep exposed area of inner conductor as short as possible.
0 to 15
16 to 33
34 to 51
CJC CJC
Bus Bar Ground
or Shield
Terminating
Feedthrough
40621gm