Agilent Technologies U2741A Service Manual

Agilent TechnologiesAgilent U2741A USB Modular 5.5 Digits Digital MultimeterService Guide

X U2741A USB Modular 5.5 Digits Digital Multimeter Service GuideContents3Service27Types of Service Available 28Extended service contracts 28Obtaining

ContentsU2741A USB Modular 5.5 Digits Digital Multimeter Service Guide XIList of TablesTable 1-1 DC accuracy ± 2Table 1-2 AC accuracy for voltage 3Tab

XII U2741A USB Modular 5.5 Digits Digital Multimeter Service GuideContents

1Agilent TechnologiesU2741A USB Modular 5.5 Digits Digital Multimeter Service Guide1SpecificationsProduct Specifications 2

2 U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide1 SpecificationsProduct SpecificationsDC specifications [1]Table 1 - 1 DC accuracy ± F

Specifications 1U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide 3[1] Specifications are based on 30 minutes warm-up time, NPLC 20 digi

4 U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide1 Specifications[3] Additional error to be added as frequency more than 30 kHz and si

Specifications 1U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide 5Frequency specifications [1][1] Frequency measurement can only be done

6 U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide1 SpecificationsTemperature specificationsTable 1 - 8 Temperature accuracy Function Th

7Agilent TechnologiesU2741A USB Modular 5.5 Digits Digital MultimeterService Guide2Performance Test CalibrationCalibration Overview 8Recommended Test

II U2741A USB Modular 5.5 Digits Digital Multimeter Service GuideNotices® Agilent Technologies, Inc. , 2008No part of this manual may be reproduced in

8 U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide2 Performance Test CalibrationCalibration OverviewClosed - case electronic calibration

Performance Test Calibration 2U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide 9Calibration intervalA one year interval is adequate for

10 U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide2 Performance Test CalibrationRecommended Test Equipment The test equipment recommend

Performance Test Calibration 2U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide 11Self-CalibrationThe self- calibration performs an inter

12 U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide2 Performance Test CalibrationTest ConsiderationsErrors may be induced by AC signals

Performance Test Calibration 2U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide 13Input connections Test connections to the instrument ar

14 U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide2 Performance Test CalibrationPerformance Verification Tests OverviewUse the Performa

Performance Test Calibration 2U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide 15If the instrument fails the quick performance check, ad

16 U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide2 Performance Test CalibrationPerformance Verification TestsZero offset verification

Performance Test Calibration 2U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide 17[1] Select NPLC 20 digit resolution.[2] The specificati

U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide IIISafety SymbolsThe following symbols on the instrument and in the documentation indic

18 U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide2 Performance Test CalibrationGain verificationThis test checks the full- scale readi

Performance Test Calibration 2U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide 19DC current gain verification test DC current configurat

20 U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide2 Performance Test CalibrationOhms gain verification test 2- wire ohms configuration:

Performance Test Calibration 2U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide 21Frequency gain verification test Frequency configuratio

22 U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide2 Performance Test CalibrationAC voltage verification testAC voltage configuration:(C

Performance Test Calibration 2U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide 23AC current verification test AC current configuration:(

24 U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide2 Performance Test CalibrationOptional AC voltage performance verification test These

Performance Test Calibration 2U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide 25Optional AC current performance verification test These

26 U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide2 Performance Test Calibration

27Agilent TechnologiesU2741A USB Modular 5.5 Digits Digital MultimeterService Guide3ServiceTypes of Service Available 28Repackaging for Shipment 30Cle

IV U2741A USB Modular 5.5 Digits Digital Multimeter Service GuideGeneral Safety InformationWARNING• Do not use the device if it is damaged. Before you

28 U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide3ServiceTypes of Service AvailableIf your instrument fails during the warranty period

Service 3U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide 29Latin America: (305) 269 7500Taiwan: 0800 047 866Other Asia Pacific Countrie

30 U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide3ServiceRepackaging for ShipmentIf the unit is to be shipped to Agilent for service o

Service 3U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide 31CleaningClean the outside of the instrument with a soft, lint- free, slightl

32 U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide3ServiceElectrostatic Discharge (ESD) PrecautionsAlmost all electrical components can

Service 3U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide 33To Replace a Current Input FuseThe current input terminal is fuse protected.

34 U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide3ServiceTroubleshooting the modular DMMThis section provides a brief check list of co

35Agilent TechnologiesU2741A USB Modular 5.5 Digits Digital MultimeterService Guide4Replacement PartsTo Order Replaceable Parts 36General Disassemble

36 U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide4 Replacement PartsTo Order Replaceable PartsYou can order the replacement parts from

Replacement Parts 4U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide 37General DisassembleThis chapter provides the step- by- step guide

U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide VEnvironmental ConditionsThis instrument is designed for indoor use and in an area with

38 U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide4 Replacement PartsStep 2: Unscrew all the following indicated screws from the metal

® Agilent Technologies, Inc. , 2008First Edition, July 31, 2008U2741-90012www.agilent.comAgilent TechnologiesContact usTo obtain service, warranty or

VI U2741A USB Modular 5.5 Digits Digital Multimeter Service GuideRegulatory MarkingsThe CE mark is a registered trademarkof the European Community. Th

U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide VIIWaste Electrical and Electronic Equipment (WEEE) Directive 2002/96/ECThis instrument

VIII U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide

U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide IXContents1 Specifications 1Product Specifications 2Frequency specifications 5Temperatu