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RTD
▪ When connecting 3- or 4-wire RTDs, make sure to use conductors of the same type, width, and
N
OTE
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.
Wiring the Source Transistor Outputs
Output's power supply
The use of any of the outputs requires an
external 24VDC power supply as shown in the
accompanying figure.
Outputs
Connect the +VO and 0V terminals as shown
in the accompanying figure.
O0-O7 share common return 0V.
14
2-wire
4-wire
User Guide
3-wire
Unitronics
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