For devices with HART communication, connect a ≥ 250 Ω resistor.
3. Take the polarity into account. The device has reverse polarity protection.
6.6 Connecting TR420
Requirement
If you use stranded wire used, you need a ferrule.
Note the maximum permissible core cross-section (Page 196).
Connecting
6.6 Connecting TR420
SITRANS TH100/TH320/TH420/TR320/TR420/TF320/TF420 with 4 to 20 mA/HART
Operating Instructions, 05/2020, A5E41864807-AB 85
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