Agilent Technologies U2802A manual U T I O N Wa Rn I N G

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Notices

© Agilent Technologies, Inc. 2008

No part of this manual may be reproduced in any form or by any means (including elec- tronic storage and retrieval or translation into a foreign language) without prior agree- ment and written consent from Agilent Technologies, Inc. as governed by United States and international copyright laws.

Manual Part Number

U2802-90003

Edition

First Edition, January 7, 2008

Agilent Technologies, Inc.

3501 Stevens Creek Blvd.

Santa Clara, CA 95052 USA

Warranty

The material contained in this docu- ment is provided “as is,” and is sub- ject to being changed, without notice, in future editions. Further, to the max- imum extent permitted by applicable law, Agilent disclaims all warranties, either express or implied, with regard to this manual and any information contained herein, including but not limited to the implied warranties of merchantability and fitness for a par- ticular purpose. Agilent shall not be liable for errors or for incidental or consequential damages in connec- tion with the furnishing, use, or per- formance of this document or of any information contained herein. Should Agilent and the user have a separate written agreement with warranty terms covering the material in this document that conflict with these terms, the warranty terms in the sep- arate agreement shall control.

Technology Licenses

The hardware and/or software described in this document are furnished under a license and may be used or copied only in accor- dance with the terms of such license.

Restricted Rights Legend

U.S. Government Restricted Rights. Soft- ware and technical data rights granted to the federal government include only those rights customarily provided to end user cus- tomers. Agilent provides this customary commercial license in Software and techni- cal data pursuant to FAR 12.211 (Technical Data) and 12.212 (Computer Software) and, for the Department of Defense, DFARS 252.227-7015 (Technical Data - Commercial Items) and DFARS 227.7202-3 (Rights in Commercial Computer Software or Com- puter Software Documentation).

Safety Notices

C A U T I O N

ACAUTION notice denotes a haz- ard. It calls attention to an operat- ing procedure, practice, or the like that, if not correctly performed or adhered to, could result in damage to the product or loss of important data. Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met.

WA RN I N G

A WARNING notice denotes a hazard. It calls attention to an operating procedure, practice, or the like that, if not correctly per- formed or adhered to, could result in personal injury or death. Do not proceed beyond a WARNING notice until the indicated condi- tions are fully understood and met.

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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 Top View Product OverviewProduct Outlook Front ViewSide View Bottom ViewProduct Dimensions Top View Front ViewStandard Purchase Items Checklist Installations and Configurations Ii. If Agilent IO Libraries Suite 14.2 has Check Your System Requirements Hard disk space 1 GBCheck Your Pre-Installed IO Libraries Suite You do not have the Agilent IO Libraries installed, orIii. If Agilent IO Libraries Suite is not installed Getting Started Install the DAQ Hardware Driver Install the Agilent Measurement ManagerGetting Started Agilent U2802A 31-Channel Thermocouple Input User’s Guide Getting Started Connect Your U2802A to DAQ Connect Your DAQ Device to the PCHardware Verification Launch Your Agilent Measurement Manager Choosing Class-Compliant Interface IVI-COM DriversChoosing Instrument-Specific Interface Using Class-Compliant Interface IVI- COMIVI-COM Driver Installation Programming EnvironmentsGetting Started Agilent U2802A 31-Channel Thermocouple Input User’s Guide Getting Started Features and Functions Features Applications System Overview 1System overview of U2802A with DAQTheory of Operation Functionality of the SystemFunctional Block Diagram 3Functional block diagram for U2802A4Functional block diagram for thermocouple mode in U2802A Analog input channel circuitry5Floating signal source configuration in U2802A Agilent U2802A 31-Channel Thermocouple Input User’s Guide Cold junction sensor Digital controlOpen Thermocouple Detection Trigger, Counter, External Timebase, and Analog OutputFeatures and Functions Pin Configurations and Assignments Pin Configurations Pin AssignmentsConnector J71 Pin DescriptionPin Configurations and Assignments Connector J50 Pin Configurations and Assignments Connector J60 Pin Pin name DescriptionConnector Pinout Rear panel pinout for Connector3Connector 2 pin assignment for U2355A and U2356A Pin Configurations and Assignments Product Specifications General Specifications Operating EnvironmentProduct Characteristics General CharacteristicsOther Features System Accuracy Specifications Accuracy on page 54 for calculation methodologyWith 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 errorThermoelectric Characteristics System Typical PerformanceTypical Error vs. Measurement Performance Making Accurate Temperature Measurements Product Specifications Calibration Zeroing Function CalibrationCalibration Information Restore Factory Calibration Calibration Contact us