5. For devices with "Intrinsic safety" type of protection, use an isolating power supply that
corresponds to the requirements of the relevant type of protection.
6. Connect the input terminals
⑤
.
,
&-&
,
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)
,
6
Voltage input
(single-pole or two-pole)
3-wire or 4-wire potentiometer
Connecting
4.6 Connecting the SITRANS TF dual chamber housing
SITRANS TH320/TH420/TR320/TR420/TF320/TF420
Compact Operating Instructions, 03/2018, A5E41865021-AA
41