Siemens SITRANS T Series - Connecting TH420

Procedure
1. Connect the input or inputs to terminals 3 to 6.
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2-wire, 3-wire or 4-wire RTD or
linear resistance
I1: Input 1
TC (internal CJC or
external 2-wire or 3-wire CJC)
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Voltage input
(unipolar and bipolar)
3-wire or 4-wire potentiometer
2. Connect the supply voltage to the terminals 1 (+) and 2 (-).
T
ake the polarity into account. The device has reverse polarity protection.
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TEST
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5+$57
For devices with HART communication, connect a ≥ 250 Ω resistor.
5.5
Connecting TH420
Requirement
If you use stranded wire used, you need a ferrule.
Note the maximum permissible core cross-section (Page 81).
Connecting
5.5 Connecting TH420
SITRANS TH100/TH100Slim/TH320/TH420/TR320/TR420/TF320/TF420
46 Compact Operating Instructions, 07/2021, A5E41865021-AE