Siemens SITRANS Series - Connecting TR420

4.5 Connecting TR420
Procedure
1. Connect the input or inputs to terminals 5 to 12.
The terminals are equipped with a coding profile to ensure intrinsic safety.


,

,



&-&


,
,




,
,
Input 1 (I1) and/or input 2 (I2):
2-wire, 3-wire or 4-wire RTD or
linear resistance
Input 1 and/or input 2:
TC (int. CJC or
ext. 2-wire or 3-wire CJC)
Voltage input
(single-pole or two-pole)
Connecting
4.5 Connecting TR420
SITRANS TH320/TH420/TR320/TR420/TF320/TF420
Compact Operating Instructions, 03/2018, A5E41865021-AA 37