Agilent Technologies U2802A User Manual Download Page 11

Page: 11 / 67

Contents 1

Contents

Notices

Safety Information

III

Environmental Conditions

VIII

In This Guide...

Declaration of Conformity (DoC)

1 Getting Started

Introduction to Agilent U2802A 31-Channel Thermocouple Input

Product Overview

Standard Purchase Items Checklist

Installations and Configurations

IVI-COM Drivers

2 Features and Functions

Features

Applications

System Overview

Theory of Operation

3 Pin Configurations and Assignments

Pin Configurations

Connector Pinout

4 Product Specifications

General Specifications

Product Characteristics

System Accuracy Specifications

System Typical Performance

Making Accurate Temperature Measurements

U2802A_UG.book Page 1 Friday, November 25, 2011 10:57 AM

Summary of Contents for U2802A

Page 1: ...Agilent Technologies Agilent U2802A 31 Channel Thermocouple Input Device User s Guide U2802A_UG book Page I Friday November 25 2011 10 57 AM...

Page 2: ...ict 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 us...

Page 3: ...ed use of the instrument Agilent Technologies Inc assumes no liability for the customer s failure to comply with these requirements Safety Symbols The following symbols indicate that precautions must...

Page 4: ...ed throughout by double insulation or rein forced insulation Caution risk of electric shock Caution hot surface Caution risk of danger See note In position of a bi stable push control Out position of...

Page 5: ...indicators C and US means that the product is certified for both the U S and Canadian markets to the applicable American and Canadian standards The C tick mark is a registered trademark of the Spectru...

Page 6: ...d terminal block prior to performing self test process Use only the power adapter supplied by the manufacturer to avoid any unexpected hazards CAUTION Do not load the input and output terminals above...

Page 7: ...nic product in domestic household waste Product Category With reference to the equipment types in the WEEE directive Annex 1 this instrument is classified as a Monitoring and Control Instrument produc...

Page 8: ...environmental requirements for the product Environmental Conditions Requirements Temperature Operating temperature from 0 C to 55 C Humidity Relative humidity at 50 to 85 RH Non condensing Altitude Al...

Page 9: ...rview and functionality of this device 3 Pin Configurations and Assignments This chapter described the Agilent U2802A 31 channel thermocouple input device pin configurations and connector pinout for u...

Page 10: ...Conformity DoC The Declaration of Conformity DoC for this instrument is available on the Web site You can search the DoC by its product model or description http regulations corporate agilent com DoC...

Page 11: ...Installations and Configurations 11 IVI COM Drivers 12 2 Features and Functions Features 18 Applications 19 System Overview 20 Theory of Operation 21 3 Pin Configurations and Assignments Pin Configura...

Page 12: ...Contents 2 5 Calibration Calibration Information 54 Zeroing Function 54 Restore Factory Calibration 55 U2802A_UG book Page 2 Friday November 25 2011 10 57 AM...

Page 13: ...e configuration in U2802A 24 Figure 2 6 Ground referenced and differential signal sources configuration in U2802A 25 Figure 3 7 U2802A pin assignment 30 Figure 3 8 Connector 1 pin assignment for U2355...

Page 14: ...averaging points 43 Table 4 2 U2802A measurement accuracy with U2355A at 0 to 18 C and 28 to 45 C with different number of averaging points 44 Table 4 3 U2802A measurement accuracy with U2356A at 0 t...

Page 15: ...t Outlook 7 Product Dimensions 9 Standard Purchase Items Checklist 10 Installations and Configurations 11 IVI COM Drivers 12 This chapter introduces the new Agilent U2802A 31 channel thermocouple inpu...

Page 16: ...It works as a standalone device attached to a single DAQ The U2802A thermocouple device is connected to the modular DAQ via SCSI cables Agilent U2802A accepts eight standard thermocouple types define...

Page 17: ...le Input User s Guide 7 Product Overview Product Outlook Top View Front View Connector 1 Connector 2 DetachableCover U2802A 31 Channel Thermocouple Input Railing Guide Strain Release Assembly Footer U...

Page 18: ...1 Getting Started 8 Agilent U2802A 31 Channel Thermocouple Input User s Guide Side View Bottom View Ventilation Holes U2802A_UG book Page 8 Friday November 25 2011 10 57 AM...

Page 19: ...ing Started 1 Agilent U2802A 31 Channel Thermocouple Input User s Guide 9 Product Dimensions Top View Front View U2802A 31 Channel Thermocouple Input U2802A_UG book Page 9 Friday November 25 2011 10 5...

Page 20: ...ing items contact the nearest Agilent Sales Office Agilent U2802A 31 channel thermocouple input device Power supply splitter Two 68 pin SCSI cables 1 m One J type thermocouple Agilent USB Modular Prod...

Page 21: ...A DAQ If you are using the U2300A Series with the Agilent Measurement Manager follow the step by step instructions as stated in the Agilent USB Modular Products and Systems Quick Start Guide NOTE You...

Page 22: ...ication writer must choose whether to use the instrument specific interface or the class compliant interface The IVI inherent capabilities through the IIviDriver interface are available in both the in...

Page 23: ...e syntactic incompatibilities in the isolated code IVI COM drivers will be provided to users The drivers can also be used in a variety of development environments For more information on IVI visit www...

Page 24: ...the minimum system requirements 2 Close all other applications on your PC 3 Insert the Agilent USB Modular Products and Systems Product Reference DVD ROM into the DVD ROM drive of your PC 4 Wait for a...

Page 25: ...Installation Dialog appears click Next to begin the IVI Driver installation 10 Read the License Agreement s To accept the terms click on the radio button labeled I accept the terms in the License Agre...

Page 26: ...you install the sample programs if you plan to program with the IVI driver However you may omit this recommendation to save space b Select the check box for each feature to be installed Clear the che...

Page 27: ...ration 21 Functionality of the System 21 Functional Block Diagram 22 This chapter contains details of the product features applications system overview and theory of operation From this chapter you wi...

Page 28: ...de independently 97 673 gain setting for thermocouple input mode Built in thermistor for cold junction compensation CJC Built in zeroing function to compensate for overall system offset errors due to...

Page 29: ...able for a wide range of applications in various fields inclusive of Consumer electronics Product thermal analysis and characterization Environmental testing Eg Temperature Cycle Process monitoring Eg...

Page 30: ...ltage to temperature for this thermistor reading is done automatically by the AMM software This temperature reading will subsequently be used as the Cold Junction Compensation CJC reference temperatur...

Page 31: ...73 by the U2802A 15 The U2355A or U2356A DAQ converts the analog voltage signals to digital voltage readings 16 The AMM software or IVI COM driver reads the Gain and Offset calibration constants from...

Page 32: ...Thermocouple Input User s Guide Functional Block Diagram The block diagram below in Figure 2 3 illustrates the key functional components of the U2802A Figure 2 3 Functional block diagram for U2802A U2...

Page 33: ...red for three modes of operation as listed below Thermocouple input mode In thermocouple mode the thermocouples or any floating voltage source should be connected to the TCn and TCn terminals as illus...

Page 34: ...U2802A as illustrated in Figure 2 3 However it is not recommended to tie ground referenced signal sources in this manner Any potential differences between the signal source ground and the U2802A grou...

Page 35: ...e been configured to be in the thermocouple mode Channels configured for bypass mode will not be affected when this mode is selected Each channel is equipped with an open thermocouple detection featur...

Page 36: ...from the sensor is fed through a 4 Hz RC low pass filter and buffered to the AI148 pin on Rear Connector 1 The conversion from voltage to temperature is done automatically by the AMM software Digital...

Page 37: ...mocouple input Trigger Counter External Timebase and Analog Output The U2802A provides a direct access to the analog and digital trigger lines counter channels external timebase input and analog outpu...

Page 38: ...2 Features and Functions 28 Agilent U2802A 31 Channel Thermocouple Input User s Guide U2802A_UG book Page 28 Friday November 25 2011 10 57 AM...

Page 39: ...tions and Assignments Pin Configurations 30 Pin Assignments 30 Pin Description 31 Connector Pinout 36 This chapter described the Agilent U2802A 31 channel thermocouple input device pin configurations...

Page 40: ...gurations and Assignments 30 Agilent U2802A 31 Channel Thermocouple Input User s Guide Pin Configurations Pin Assignments Figure 3 7 U2802A pin assignment U2802A_UG book Page 30 Friday November 25 201...

Page 41: ...ut See TC1 description 8 TC4 9 TC5 TC input or voltage input See TC1 description 10 TC5 11 TC6 TC input or voltage input See TC1 description 12 TC6 13 TC7 TC input or voltage input See TC1 description...

Page 42: ...nput User s Guide 28 TC22 TC input or voltage input See TC1 description 29 TC22 30 TC23 TC input or voltage input See TC1 description 31 TC23 32 TC24 TC input or voltage input See TC1 description 33 T...

Page 43: ...C1 description 11 TC12 12 TC11 TC input or voltage input See TC1 description 13 TC11 14 TC10 TC input or voltage input See TC1 description 15 TC10 16 TC9 TC input or voltage input See TC1 description...

Page 44: ...Agilent U2802A 31 Channel Thermocouple Input User s Guide 31 TC26 TC input or voltage input See TC1 description 32 TC26 33 TC25 TC input or voltage input See TC1 description 34 TC25 U2802A_UG book Pa...

Page 45: ...rectly connected to DAQ1 7 GND Module Ground 8 AO_GND Directly connected to DAQ1 9 AO_GND Directly connected to DAQ1 10 GND Module Ground 11 GND Module Ground 12 GND Module Ground 13 COUNT301_CLK Dire...

Page 46: ...ents 36 Agilent U2802A 31 Channel Thermocouple Input User s Guide Connector Pinout Rear panel pinout for Connector 1 Figure 3 8 Connector 1 pin assignment for U2355A and U2356A U2802A_UG book Page 36...

Page 47: ...ssignments 3 Agilent U2802A 31 Channel Thermocouple Input User s Guide 37 Rear panel pinout for Connector 2 Figure 3 9 Connector 2 pin assignment for U2355A and U2356A U2802A_UG book Page 37 Friday No...

Page 48: ...3 Pin Configurations and Assignments 38 Agilent U2802A 31 Channel Thermocouple Input User s Guide U2802A_UG book Page 38 Friday November 25 2011 10 57 AM...

Page 49: ...System Accuracy 46 System Typical Performance 49 Making Accurate Temperature Measurements 51 This chapter specifies the environmental conditions characteristics and specifications of the Agilent U2802...

Page 50: ...EN55011 1990 Group 1 Class A CANADA ICES 001 2004 Australia New Zealand AS NZS CISPR11 2004 SHOCK VIBRATION Tested to IEC EN 60068 2 IO CONNECTOR 2 x 68 pin female SCSI connector 2 x 34 pin screw ter...

Page 51: ...s Thermocouple types J K R S T N E and B INPUT SPECIFICATIONS Accuracy thermocouple mode Overall gain error Overall offset error Nonlinearity 0 06 23 C 5 C 15 V without zeroing 23 C 5 C 6 V with zero...

Page 52: ...ltage each input pin can tolerate without resulting in any damages However prolonged exposure to these levels may affect device safety and reliability Hence it should be avoided where possible On the...

Page 53: ...uracy specifications without including the thermocouple error Refer to Calculating System Accuracy on page 46 for calculation methodology Thermocouple Measurements Accuracy U2355A U2356A 23 C 5 C T C...

Page 54: ...out averaging C 50 points averaging C 500 points averaging C Low High Low High B 0 1820 1100 1820 3 4 2 4 2 2 400 1100 7 5 3 6 2 2 E 270 1000 150 1000 2 7 2 6 2 5 200 150 3 8 3 6 3 6 J 210 1200 150 12...

Page 55: ...ut averaging C 50 points averaging C 500 points averaging C Low High Low High B 0 1820 1100 1820 6 1 3 1 2 4 400 1100 14 4 6 3 2 7 E 270 1000 150 1000 3 0 2 6 2 6 200 150 4 2 3 7 3 6 J 210 1200 150 12...

Page 56: ...will be the root sum square RSS of all the errors ETOTAL 2 EDAQ 2 ESIG_COND 2 ETHERMOCOUPLE 2 Example Assume the following conditions DAQ Agilent U2355A Signal Conditioning Agilent U2802A Ambient temp...

Page 57: ...This corresponds to 33 102 mV 97 673 or 3 2332 V at the input of the DAQ Hence EDAQ ESIG_COND and EZEROING are calculated as follows EDAQ 0 02 33 102 mV 6 62 V 6 62 V 59 V C 0 112 C ESIG_COND 0 06 33...

Page 58: ...mponent errors the total measurement system accuracy is calculated as below System accuracy without thermocouple sensor error ETOTAL SQRT EDAQ 2 ESIG_COND 2 EZEROING 2 ECJC 2 0 95 C System accuracy wi...

Page 59: ...49 System Typical Performance Thermoelectric Characteristics The thermoelectric characteristics for various thermocouple types is shown in Figure 2 10 Figure 4 10 Thermoelectric characteristics for v...

Page 60: ...asurement error with U2355A or U2356A at 23 C 5 C is shown in Figure 2 11 Figure 4 11 U2802A measurement accuracy plot for various thermocouples type NOTE Assume a 1 C error in the CJ measurement due...

Page 61: ...rminals Keep the module away from any heat sources and drafts to minimize any variation between channels The channels located closest to the center near the reference thermistor will have the best acc...

Page 62: ...4 Product Specifications 52 Agilent U2802A 31 Channel Thermocouple Input User s Guide U2802A_UG book Page 52 Friday November 25 2011 10 57 AM...

Page 63: ...libration 54 Calibration Information 54 Zeroing Function 54 Restore Factory Calibration 55 This chapter contains the calibration information and factory restore calibration procedure for the Agilent U...

Page 64: ...The Agilent U2802A thermocouple input device operating in thermocouple mode can be set to zero mode where the differential inputs of each channel are shorted together This zeroing function is used to...

Page 65: ...settings to factory original settings To perform factory restore calibration follow the step by step instructions shown below 1 Click Restore Factory Calibration in the thermocouple form 2 A dialog b...

Page 66: ...5 Calibration 56 Agilent U2802A 31 Channel Thermocouple Input User s Guide U2802A_UG book Page 56 Friday November 25 2011 10 57 AM...

Page 67: ...0 746 4866 China tel 800 810 0189 fax 800 820 2816 Europe tel 31 20 547 2111 Japan tel 81 426 56 7832 fax 81 426 56 7840 Korea tel 080 769 0800 fax 080 769 0900 Latin America tel 305 269 7500 Taiwan t...

Search results

Summary of Contents for U2802A

Reviews:

Related manuals for U2802A

Brands by name

Popular brands

Agilent Technologies U2802A, User Manual

Search results

Summary of Contents for U2802A

Reviews:

Related manuals for U2802A

Brands by name

Popular brands