Measurement Computing USB-TC - Manual (Page 3)

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Table of Contents
Preface
About this User’s Guide ....................................................................................................................... 5
Conventions in this user's guide ......................................................................................................................... 5
Where to find more information ......................................................................................................................... 5
Chapter 1
Introducing the USB-TC ....................................................................................................................... 6
Overview: USB-TC features............................................................................................................................... 6
Functional block diagram ................................................................................................................................... 6
Connecting a USB-TC to your computer is easy ................................................................................................ 7
Chapter 2
Installing the USB-TC ........................................................................................................................... 8
What comes with your shipment? ....................................................................................................................... 8
Hardware .......................................................................................................................................................................... 8
Software ............................................................................................................................................................................ 8
Documentation .................................................................................................................................................................. 8
Unpacking........................................................................................................................................................... 8
Installing the software ........................................................................................................................................ 8
Installing the hardware ....................................................................................................................................... 8
Configuring the hardware ................................................................................................................................... 9
Calibrating the hardware..................................................................................................................................... 9
Chapter 3
Sensor Connections ........................................................................................................................... 10
Screw terminal pinout ....................................................................................................................................... 10
Thermocouple input .........................................................................................................................................................10
CJC sensors ......................................................................................................................................................................10
Digital I/O ........................................................................................................................................................................11
Power output ....................................................................................................................................................................11
Ground .............................................................................................................................................................................11
Thermocouple connections ............................................................................................................................... 11
Wiring configuration ........................................................................................................................................................11
Digital I/O connections ..................................................................................................................................... 12
Chapter 4
Functional Details ............................................................................................................................... 13
Thermocouple measurements ........................................................................................................................... 13
Cold junction compensation (CJC) ..................................................................................................................................13
Data linearization .............................................................................................................................................................13
Open-thermocouple detection (OTD) ..............................................................................................................................13
USB connector .................................................................................................................................................. 14
LED .................................................................................................................................................................. 14
Power ................................................................................................................................................................ 14
Chapter 5
Specifications ...................................................................................................................................... 15
Analog input ..................................................................................................................................................... 15
Channel configurations ..................................................................................................................................... 15
Accuracy ........................................................................................................................................................... 16
Thermocouple measurement accuracy .............................................................................................................................16
Throughput rate ................................................................................................................................................ 16
Digital input/output........................................................................................................................................... 17