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Agilent U2802A 31-Channel Thermocouple Input Device
Models:
U2802A
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Specs
Product Characteristics
Install
Functional Block Diagram
Dimension
Pin Configurations
Connector J71
Restore Factory Calibration
Safety
Features and Functions
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Agilent U2802A
31-Channel
Thermocouple Input Device
User’s Guide
Agilent Technologies
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Contents
Agilent U2802A 31-Channel Thermocouple Input Device
U T I O N WA RN I N G
Safety Information
U2802A 31-Channel Thermocouple Input User’s Guide
Regulatory Markings
General Safety Information
Do not dispose in domestic household waste
Environmental Conditions
This Guide
November-2007
Regulatory Information for Australia/New Zealand
XII
Contents
Calibration
List of Figures
List of Tables
Getting Started
Introduction to Agilent U2802A 31-Channel Thermocouple Input
Product Outlook
Product Overview
Top View
Front View
Bottom View
Side View
Top View Front View
Product Dimensions
Standard Purchase Items Checklist
Installations and Configurations
Ii. If Agilent IO Libraries Suite 14.2 has
Hard disk space 1 GB
Check Your System Requirements
You do not have the Agilent IO Libraries installed, or
Check Your Pre-Installed IO Libraries Suite
Iii. If Agilent IO Libraries Suite is not installed
Getting Started
Install the Agilent Measurement Manager
Install the DAQ Hardware Driver
Getting Started
Agilent U2802A 31-Channel Thermocouple Input User’s Guide
Getting Started
Hardware Verification
Connect Your DAQ Device to the PC
Connect Your U2802A to DAQ
Launch Your Agilent Measurement Manager
Choosing Instrument-Specific Interface
IVI-COM Drivers
Choosing Class-Compliant Interface
IVI- COM
Using Class-Compliant Interface
Programming Environments
IVI-COM Driver Installation
Getting Started
Agilent U2802A 31-Channel Thermocouple Input User’s Guide
Getting Started
Features and Functions
Features
Applications
1System overview of U2802A with DAQ
System Overview
Functionality of the System
Theory of Operation
3Functional block diagram for U2802A
Functional Block Diagram
Analog input channel circuitry
4Functional block diagram for thermocouple mode in U2802A
5Floating signal source configuration in U2802A
Agilent U2802A 31-Channel Thermocouple Input User’s Guide
Digital control
Cold junction sensor
Trigger, Counter, External Timebase, and Analog Output
Open Thermocouple Detection
Features and Functions
Pin Configurations and Assignments
Pin Assignments
Pin Configurations
Pin Description
Connector J71
Pin Configurations and Assignments
Connector J50
Pin Configurations and Assignments
Pin Pin name Description
Connector J60
Rear panel pinout for Connector
Connector Pinout
3Connector 2 pin assignment for U2355A and U2356A
Pin Configurations and Assignments
Product Specifications
Operating Environment
General Specifications
General Characteristics
Product Characteristics
Other Features
Accuracy on page 54 for calculation methodology
System Accuracy Specifications
With different number of averaging points
U2356A @ 0 C to 18 C and 28 C to 45 C
Example
Calculating System Accuracy
= 0.02% × 33.102 mV = 6.62 µV = 6.62 µV ÷ 59 µV/C = 0.112 C
System accuracy with thermocouple sensor error
System accuracy without thermocouple sensor error
System Typical Performance
Thermoelectric Characteristics
Typical Error vs. Measurement Performance
Making Accurate Temperature Measurements
Product Specifications
Calibration
Calibration Information
Calibration
Zeroing Function
Restore Factory Calibration
Calibration
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