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
.
,
,
,
&-&
,
,
,
Input 1 (I1) and/or
input 2 (I2):
2-wire, 3-wire or 4-wire RTD or
linear resistance
Input 1 (I1) and/or
input 2 (I2):
TC (int. CJC or
ext. 2-wire, 3-wire or 4-wire
CJC)
Input 1 (I1) and/or
input 2 (I2):
Voltage input
(single-pole or two-pole)
,
&-&
,
,
,
,
Input 1: TC (int. CJC or
ext. 2-wire or 3-wire CJC)
Input 2: 2-wire, 3-wire or 4-wire
RTD
Input 1 (I1) and/or
input 2 (I2):
3-wire or 4-wire potentiometer
Input 1 (I1): 5-wire potentiome‐
ter
Input 2 (I2): 3-wire potentiome‐
ter
Connecting
4.6 Connecting the SITRANS TF dual chamber housing
SITRANS TH320/TH420/TR320/TR420/TF320/TF420
Compact Operating Instructions, 03/2018, A5E41865021-AA
43