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