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Chapter 3
Sensor Connections
The WLS-TC supports type J, K, R, S, T, N, E, and B thermocouples.
The thermocouple type you select depends on your application needs. Review the temperature ranges and
accuracies of each type to determine which is best suited for your application.
Screw terminal pinout
The WLS-TC has four banks of screw terminals. There are 26 connections on each side. Between each bank of
screw terminals are two integrated CJC sensors used for thermocouple measurements. Signals are identified in
Figure 2.
Figure 2. WLS-TC screw terminal pin numbers
Use 16 AWG to 30 AWG wire for your signal connections.
Tighten screw terminal connections
When making screw terminal connections, be sure to tighten the screw until tight. Simply touching the top of
the screw terminal is not sufficient to make a proper connection.
Thermocouple inputs
You can connect up to eight thermocouples to the differential sensor inputs (C0H/C0L to C7H/C7L). The
WLS-TC supports type J, K, R, S, T, N, E, and B thermocouples.
CJC sensors
The WLS-TC has two built-in high-resolution temperature sensors. One sensor is located on the right side of the
package, and one sensor is located at the left side.
