Question

How should I wire your RTD0100 series of RTDs to the FC-R1 RTD signal conditioner?

Answer

The RTD0100 series is our four wire RTDs. Two each of the wires are connected to each side of the RTD.

PIN # WIRE COLOR

• 1 BROWN
• 2 WHITE
• 3 BLUE
• 4 BLACK

So for our RTDs

• BROWN and WHITE are connected to the same point on the RTD
• BLUE and BLACK are connected to the other point.

The RTD input of the FC-R1 has three connections:

• + (plus)
• - (minus)
• COM.

In order to wire our four wire RTD to the FC-R1 input,

• one of the wires should remain disconnected on the RTD0100 cable.
• The other wire that connects to the unused wire on the RTD is the wire that should be connected to the + (plus) terminal of the FC-R1.

As an example,

• If you don't use the BROWN wire in the RTD0100,the WHITE wire should be connected to the + (plus) terminal.
• The other two wires, BLUE and BLACK in this example, should be connected to the -(minus) and COM terminal.
• It does not matter which color is connected to which terminal for these two wires.

To restate the example,

• don't connect the BROWN wire of the RTD0100 to anything.
• Connect the WHITE wire to the + (plus) terminal of the FC-R1
• connect the BLUE wire to the -(minus) terminal
• and the BLACK to the COM.

This will properly connect the RTD0100 to the FC-R1. Other combinations can be wired and be correct, but this is an illustration of one combination.

If you need to extend the wire for the RTD run, we recommend Q7525-1 or equivalent.

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FAQ Subcategory: None

This item was last updated on 2021-02-18
Document ID: 1266

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