Measurement Computing USB-TC-AI - Manual (Page 3)

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Table of Contents
Preface
About this User’s Guide ....................................................................................................................... 5
What you will learn from this user's guide ......................................................................................................... 5
Conventions in this user's guide ......................................................................................................................... 5
Where to find more information ......................................................................................................................... 5
Chapter 1
Introducing the USB-TC-AI ................................................................................................................... 6
Functional block diagram ................................................................................................................................... 6
Connecting a USB-TC-AI to your computer is easy .......................................................................................... 7
Chapter 2
Installing the USB-TC-AI ....................................................................................................................... 8
What comes with your shipment? ....................................................................................................................... 8
Hardware .......................................................................................................................................................................... 8
Documentation .................................................................................................................................................................. 8
Unpacking........................................................................................................................................................... 8
Installing the software ........................................................................................................................................ 8
Installing the hardware ....................................................................................................................................... 8
Configuring the hardware ................................................................................................................................... 9
Calibrating the hardware..................................................................................................................................... 9
Chapter 3
Signal I/O Connections ....................................................................................................................... 10
Screw terminal pinout ....................................................................................................................................... 10
Voltage input ...................................................................................................................................................................10
Thermocouple input .........................................................................................................................................................11
CJC sensor .......................................................................................................................................................................11
Digital I/O ........................................................................................................................................................................11
Counter input ...................................................................................................................................................................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
External components ........................................................................................................................................ 14
Screw terminals................................................................................................................................................................14
USB connector .................................................................................................................................................................14
LEDs ................................................................................................................................................................................14
Power ................................................................................................................................................................ 14
Chapter 5
Specifications ...................................................................................................................................... 15
Analog input ..................................................................................................................................................... 15
Channel configurations ..................................................................................................................................... 16
Compatible sensors: T0x toT3x .......................................................................................................................................16