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U2802A 31-Channel Thermocouple Input User’s Guide

Declaration of 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/search.htm

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

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Содержание U2802A

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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