Procedure
1. Connect the input or inputs to terminals 5 to 8.
The terminals are equipped with a coding prole to ensure intrinsic safety.
2-wire, 3-wire or 4-wire RTD or
wire resistance
I1: Input 1
TC (internal CJC or
external 2-wire or 3-wire CJC)
Voltage input (unipolar and bi‐
polar)
3-wire or 4-wire potentiometer
2. Connect the supply voltage to the terminals 3 (+) and 4 (-).
5+$57
Connecting
6.5 Connecting TR320
SITRANS TH100/TH320/TH420/TR320/TR420/TF320/TF420 with 4 to 20 mA/HART
84 Operating Instructions, 05/2020, A5E41864807-AB
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