Procedure
1. Connect the input or inputs to terminals 5 to 12.
The terminals are equipped with a coding prole to ensure intrinsic safety.
Input 1 (I1) and/or input 2 (I2):
2-wir
e, 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
(unipolar and bipolar)
Connecting
5.7 Connecting TR420
SITRANS TH100/TH100Slim/TH320/TH420/TR320/TR420/TF320/TF420
Compact Operating Instructions, 07/2021, A5E41865021-AE 51