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-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
(unipolar and bipolar)
Connecting
6.6 Connecting TR420
SITRANS TH100/TH320/TH420/TR320/TR420/TF320/TF420 with 4 to 20 mA/HART
86 Operating Instructions, 05/2020, A5E41864807-AB
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