Unitronics UniStream Built-in Series Installation Manual page 16

RTD
▪ When connecting 3- or 4-wire RTDs, make sure to use conductors of the same
N
OTE
type, width, and length for all RTD wires, otherwise the accuracy will degrade.
▪ When connecting 4-wire RTDs, use 3-wire cable and leave the unused wire
unconnected and of minimal length.
16
2-wire
4-wire
UniStream ®
3-wire
Unitronics
Built-in