Measurement Computing USB-5201 - Manual (Page 10)

10
Chapter 3
Sensor Connections
The USB-5201 supports type types J, K, R, S, T, N, E, and B thermocouples.
Thermocouple selection
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 USB-5201 has four rows of screw terminals – two rows on the top edge of the housing, and two rows on
the bottom edge. Each row has 26 connections. Between each bank of screw terminals are two integrated CJC
sensors used for thermocouple measurements. Signals are identified in Figure 2.
Figure 2. USB-5201 screw terminal pin numbers
Use 16 AWG to 30 AWG wire for your signal connections. Do not connect anything to the pins labeled RSVD.
Tighten screw terminal connections
When making connections to the screw terminals, fully tighten the screw. 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 ).
Thermocouple types J, K, R, S, T, N, E, and B are supported.
CJC sensors
The USB-5201 has two built in high-resolution temperature sensors. One sensor is located on the right side of
the package, and one sensor is located on the left side.