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Strany 1 - Multimeter

Agilent TechnologiesAgilent U3401A 4 1/2 Digit Dual DisplayMultimeterUser’s and Service Guide

Strany 2

x U3401A User’s and Service GuideIn This Guide ...1 Getting Started This chapter provides an introduction to the U3401A digital multimeter and a tuto

Strany 3 - Safety Symbols

6 Specifications and Characteristics 84 U3401A User’s and Service GuideDC SpecificationsTable 6 - 1 DCV resolution, full scale reading and accuracy [

Strany 4 - Regulatory Markings

Specifications and Characteristics 6 U3401A User’s and Service Guide 85AC SpecificationsTrue RMS AC VoltageTable 6 - 2 ACV resolution and full scale r

Strany 5 - General Safety Information

6 Specifications and Characteristics 86 U3401A User’s and Service GuideTrue RMS AC CurrentTable 6 - 3 ACI resolution, full scale reading, and burden

Strany 6

Specifications and Characteristics 6 U3401A User’s and Service Guide 87FrequencySensitivity for Voltage Measurement Sensitivity for Current Measuremen

Strany 7 - Environmental Conditions

6 Specifications and Characteristics 88 U3401A User’s and Service GuideDecibel (dB) CalculationTable 6 - 7 Range and accuracy (dB)Voltage range [1][2

Strany 8 - 2002/96/EC

Specifications and Characteristics 6 U3401A User’s and Service Guide 89Supplemental Measurement SpecificationsDisplay update rateMeasurement Specifica

Strany 9

6 Specifications and Characteristics 90 U3401A User’s and Service GuideDC current• Shunt resistance• 0.01 W to 100 W for 500 μA to 10 A ranges• Respo

Strany 10 - In This Guide

Specifications and Characteristics 6 U3401A User’s and Service Guide 91AC voltage (True RMS AC + DC Coupling Mode)• Measurement method• AC+DC coupled

Strany 11 - Contents

6 Specifications and Characteristics 92 U3401A User’s and Service GuideAC current (True RMS, AC Coupling Mode)• Measurement method• DC coupled to the

Strany 12 - 5 Disassembly and Repair

Specifications and Characteristics 6 U3401A User’s and Service Guide 93Resistance• Measurement method• 2-wire Ohms• Open-circuit voltage• Limited to +

Strany 13

U1253B User’s and Service Guide xi Contents1 Getting StartedIntroducing the Agilent U3401A Dual Display Multimeter 2Checking the shipping conten

Strany 14

6 Specifications and Characteristics 94 U3401A User’s and Service GuideFrequency• Measurement method• Reciprocal counting technique. AC coupled input

Strany 15 - List of Figures

Specifications and Characteristics 6 U3401A User’s and Service Guide 95dBm Operation• 0 dBm• 1 mW at 600 Ω reference impedance• Resolution• 0.01 dB fo

Strany 16 - Frequency 53

6 Specifications and Characteristics 96 U3401A User’s and Service GuideReading ratesTable 6 - 10 Reading rates (reading/second (approx))Measurement f

Strany 17 - List of Tables

Specifications and Characteristics 6 U3401A User’s and Service Guide 97General CharacteristicsTable 6 - 11 General Characteristics Power Supply• 100V/

Strany 18

6 Specifications and Characteristics 98 U3401A User’s and Service GuideStorage Compliance• – 20°C to 60°C• Relative humidity at 5% to 90% RH (non-con

Strany 19 - Getting Started

Specifications and Characteristics 6 U3401A User’s and Service Guide 99To Calculate Total Measurement ErrorThe multimeter's accuracy specificatio

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6 Specifications and Characteristics 100 U3401A User’s and Service GuideAccuracy SpecificationsTransfer AccuracyTransfer accuracy refers to the error

Strany 21 - Original packaging

© Agilent Technologies, Inc. 2009–2013Printed in MalaysiaSeventh Edition, April 5, 2013U3401-90001www.agilent.comAgilent TechnologiesContact usTo obta

Strany 22

xii U1253B User’s and Service Guide Using the Secondary Display 41Using the Setup Menu 43Changing the Configurable Settings 44Trigger

Strany 23 - Stacking the U3401A

U1253B User’s and Service Guide xiii To Replace a Current Input Fuse 74Electrostatic Discharge (ESD) Precautions 74Mechanical Disassembly

Strany 24 - Adjusting the Handle

xiv U1253B User’s and Service Guide

Strany 25 - Product at a Glance

U1253B User’s and Service Guide xv List of FiguresFigure 1-1 Stacking the U3401A 5Figure 1-2 Type of handle position 6Figure 1-3 Attac

Strany 26 - The front panel at a glance

xvi U1253B User’s and Service Guide Figure 3-3 Connection terminal when measuring AC Voltage and Frequency 53Figure 3-4 Connection terminal

Strany 27 - The display at a glance

U1253B User’s and Service Guide xvii List of TablesTab l e 1- 1 Display annunciators 9Tab l e 1- 2 Keypad functions 11Tab l e 1- 3

Strany 28 - 1Getting Started

xviii U1253B User’s and Service Guide

Strany 29 - The keypad at a glance

1U3401A 4 ½ Digit Dual Display MultimeterUser’s and Service GuideAgilent Technologies1Getting StartedIntroducing the Agilent U3401A Dual Display Multi

Strany 30

ii U3401A User’s and Service GuideNotices© Agilent Technologies, Inc. 2009–2013No part of this manual may be reproduced in any form or by any means (i

Strany 31

1Getting Started 2 U3401A User’s and Service GuideIntroducing the Agilent U3401A Dual Display MultimeterThe key features of the U3401A dual display m

Strany 32 - The terminals at a glance

Getting Started 1 U3401A User’s and Service Guide 3Checking the shipping contentsVerify that you have received the following items with your multimete

Strany 33 - Getting Started 1

1Getting Started 4 U3401A User’s and Service GuideConnecting power to the instrumentConnect the power cord and press the power switch to turn on the

Strany 34 - The rear panel at a glance

Getting Started 1 U3401A User’s and Service Guide 5Stacking the U3401AThe U3401A is shipped with specially designed anti- slip protective bumpers on

Strany 35 - Making measurements

1Getting Started 6 U3401A User’s and Service GuideAdjusting the HandleTo adjust the handle, grasp the handle by the side and pull outward. Then, rota

Strany 36 - AC voltage

Getting Started 1 U3401A User’s and Service Guide 7Product at a GlanceProduct dimensionsFront viewSide viewFigure 1-4 U3401A dimensions226.0 mm105.0 m

Strany 37 - DC Voltage

1Getting Started 8 U3401A User’s and Service GuideThe front panel at a glance Figure 1-5 Front panel Measurement function keypadsMath operation ke

Strany 38

Getting Started 1 U3401A User’s and Service Guide 9The display at a glanceFigure 1-6 VFD full display with all segments illuminatedThe highly visible

Strany 39 - • Measurement ranges:

1Getting Started 10 U3401A User’s and Service GuideAnnunciator DescriptionPolarity, digits, and decimal points for primary display°C Celcius temperat

Strany 40

Getting Started 1 U3401A User’s and Service Guide 11The keypad at a glance The operation for each key is shown on Table 1- 2. Pressing a key changes t

Strany 41 - Test current

U3401A User’s and Service Guide iiiSafety SymbolsThe following symbol on the instrument and in the documentation indicates precautions that must be ta

Strany 42

1Getting Started 12 U3401A User’s and Service GuideKey DescriptionMeasurement related operation +Press to disable the secondary display.Press to sele

Strany 43 - Test c ur r e n t

Getting Started 1 U3401A User’s and Service Guide 13Key DescriptionMeasurement related operationPress to select a lower range and disable autoranigng.

Strany 44 - Selecting a Range

1Getting Started 14 U3401A User’s and Service GuideThe terminals at a glanceFigure 1-8 Input terminalsCAUTIONTo avoid damaging this multimeter, do no

Strany 45 - Table 1 - 4 Range scale value

Getting Started 1 U3401A User’s and Service Guide 15Table 1 - 3 Input terminal for different functionsMeasurement function Input terminal Overload pro

Strany 46

1Getting Started 16 U3401A User’s and Service GuideThe rear panel at a glanceFigure 1-9 Rear panelAC linevoltage selectorLine voltage fuseselection t

Strany 47 - Operations and Features

Getting Started 1 U3401A User’s and Service Guide 17Making measurementsThe following pages show you how to make measurement connections and how to sel

Strany 48 - Operating Math Functions

1Getting Started 18 U3401A User’s and Service GuidePerforming voltage measurementsAC voltage• Five ranges: 500.00 mV, 5.00 V, 50.00 V, 500.00 V, 750.

Strany 49 - Procedure 1

Getting Started 1 U3401A User’s and Service Guide 19DC Voltage• Five ranges: 500.00 mV, 5.00 V, 50.00 V, 500.00 V, 1000.00 V • Measurement method: Sig

Strany 50 - Procedure

1Getting Started 20 U3401A User’s and Service GuidePerforming current measurementsMeasuring AC (RMS) or DC Current in mA• Measurement ranges: 500.00

Strany 51

Getting Started 1 U3401A User’s and Service Guide 21Measuring AC (RMS) or DC Current up to 10 A• Measurement ranges:• 5.000 A, 10.000 A for DC or AC R

Strany 52

iv U3401A User’s and Service GuideRegulatory MarkingsThe CE mark shows that the product complies with all the relevant Euro-pean legal Directives (if

Strany 53

1Getting Started 22 U3401A User’s and Service GuidePerforming frequency measurements• Five ranges: • 500.00 mV, 5.0000 V, 50.000 V, 500.000 V, 750.00

Strany 54

Getting Started 1 U3401A User’s and Service Guide 23Performing resistance/continuity measurements• Six ranges: 500.00 W, 5.0000 kW, 50.000 kW, 500.00

Strany 55 - Refresh Hold

1Getting Started 24 U3401A User’s and Service GuidePerforming diode and continuity TestThe diode test measures the forward voltage of a semiconductor

Strany 56 - OL or open state

Getting Started 1 U3401A User’s and Service Guide 25• A diode is considered shorted if the multimeter displays approximately 0 V in both forward and r

Strany 57 - Percentage (%)

1Getting Started 26 U3401A User’s and Service GuideSelecting a RangeYou can allow the multimeter to select the range automatically by using autorangi

Strany 58

Getting Started 1 U3401A User’s and Service Guide 27Table 1 - 4 Range scale valueMeasurement function Range Auto RangingDCV500.000 mV, 5.000 V, 50.000

Strany 59 - Using the Secondary Display

1Getting Started 28 U3401A User’s and Service Guide

Strany 60 - 2 Operations and Features

29U3401A 4 ½ Digit Dual Display MultimeterUser’s and Service GuideAgilent Technologies2Operations and FeaturesOperating Math Functions 30dBm 31R

Strany 61 - Using the Setup Menu

2 Operations and Features 30 U3401A User’s and Service GuideOperating Math FunctionsTable 2- 1 presents a summary of the math operations that can be

Strany 62

Operations and Features 2 U3401A User’s and Service Guide 31dBmThe logarithmic dBm (decibels relative to one milliwatt) scale is often used in RF sign

Strany 63 - Trigger Mode

U3401A User’s and Service Guide vGeneral Safety InformationThe following general safety precautions must be observed during all phases of operation, s

Strany 64

2 Operations and Features 32 U3401A User’s and Service GuideRelWhen making Rel (relative) measurements, each reading is the difference between a stor

Strany 65 - Application Tutorial

Operations and Features 2 U3401A User’s and Service Guide 33MinMaxThe MinMax (Minimum/Maximum) operation stores the minimum and maximum values of read

Strany 66

2 Operations and Features 34 U3401A User’s and Service GuideThe elapsed time is recorded when the MinMax operation is selected. The elapsed time is s

Strany 67

Operations and Features 2 U3401A User’s and Service Guide 35CompThe Comp (compare) operation allows you to perform pass/fail testing against specified

Strany 68

2 Operations and Features 36 U3401A User’s and Service GuideProcedure1 Press to enter the upper limit setup mode. The upper limit is shown on pri

Strany 69

Operations and Features 2 U3401A User’s and Service Guide 37HoldThe reading hold feature allows you to capture and hold a reading on the front panel d

Strany 70 - Measure Resistance

2 Operations and Features 38 U3401A User’s and Service Guide5 Press twice quit the Setup menu.6 Press to select refresh hold mode. The present va

Strany 71 - Measure True RMS AC + DC

Operations and Features 2 U3401A User’s and Service Guide 39Percentage (%)This operation allows you to transfer the measurement value with a proportio

Strany 72

2 Operations and Features 40 U3401A User’s and Service GuideProcedure1 Press to enter the upper limit setup mode. The upper limit is shown on pri

Strany 73 - Performance Test

Operations and Features 2 U3401A User’s and Service Guide 41Using the Secondary DisplayFigure 2-9 Secondary display To enable the secondary display mo

Strany 74 - Calibration Overview

vi U3401A User’s and Service GuideWARNING• Do not defeat power cord safety ground feature. Plug in to a grounded (earthed) outlet.• Do not use multime

Strany 75 - Recommended Test Equipment

2 Operations and Features 42 U3401A User’s and Service GuideTable 2 - 2 Description for dual display combinationPrimary DisplaySecondary DisplayDefau

Strany 76 - Test Considerations

Operations and Features 2 U3401A User’s and Service Guide 43Using the Setup MenuThe Setup menu allows you to customize a number of non- volatile instr

Strany 77 - DC Voltage Verification Test

2 Operations and Features 44 U3401A User’s and Service GuideChanging the Configurable SettingsThe parameters in the Setup Menu can be configured by u

Strany 78 - DC Current Verification Test

Operations and Features 2 U3401A User’s and Service Guide 45Trigger ModeThis multimeter has two types of trigger mode. • Internal — triggers measureme

Strany 79 - Performance Test 4

2 Operations and Features 46 U3401A User’s and Service GuideNOTE• All math operations will be disabled when external trigger is enabled. • Press

Strany 80 - Resistance Verification Test

49U3401A 4 ½ Digit Dual Display MultimeterUser’s and Service GuideAgilent Technologies3Application TutorialApplications for Using Dual Display 50Du

Strany 81 - Frequency Verification Test

3 Application Tutorial 50 U3401A User’s and Service GuideApplications for Using Dual DisplayThe dual display feature in the multimeter can be used to

Strany 82 - AC Voltage Verification Test

Application Tutorial 3 U3401A User’s and Service Guide 51Dual Display Operation ExamplesThis section describes some practical operations when using du

Strany 83 - AC Current Verification Test

3 Application Tutorial 52 U3401A User’s and Service GuideMeasure AC and DC Current on a Rectification CircuitA single measurement for both AC current

Strany 84 - 4Performance Test

Application Tutorial 3 U3401A User’s and Service Guide 53Measure AC Voltage and Frequency on an AC CircuitA single measurement for both AC voltage and

Strany 85 - Disassembly and Repair

U3401A User’s and Service Guide viiEnvironmental ConditionsThis multimeter is designed for indoor use only. The table below shows the general environm

Strany 86 - Operating Checklist

3 Application Tutorial 54 U3401A User’s and Service GuideMeasure Resistance1 Connect a resistor under test to and LO input terminals as shown in F

Strany 87 - Types of Service Available

Application Tutorial 3 U3401A User’s and Service Guide 55Measure True RMS AC + DCThe multimeter can measure the true RMS of AC voltage and AC current.

Strany 88 - Cleaning

3 Application Tutorial 56 U3401A User’s and Service Guide

Strany 89

57U3401A 4 ½ Digit Dual Display MultimeterUser’s and Service GuideAgilent Technologies4Performance TestCalibration Overview 58Agilent Technologies

Strany 90 - 0.63 mA, 500 V fuse 2110-1432

4Performance Test 58 U3401A User’s and Service GuideCalibration OverviewAgilent Technologies Calibration ServicesWhen your instrument is due for cali

Strany 91 - Mechanical Disassembly

Performance Test 4 U3401A User’s and Service Guide 59Recommended Test EquipmentThe test equipments recommended for the performance verification proced

Strany 92

4Performance Test 60 U3401A User’s and Service GuideTest ConsiderationsFor optimum performance, all procedures should comply with the following recom

Strany 93 - Front Panel Removal

Performance Test 4 U3401A User’s and Service Guide 61Performance Verification Tests OverviewPerformance verification tests is an extensive set of test

Strany 94

4Performance Test 62 U3401A User’s and Service GuideDC Current Verification Test1 Connect the calibrator to the front panel Hi and Lo input connector

Strany 95

Performance Test 4 U3401A User’s and Service Guide 63Table 4 - 3 DC current verification testFunction Input Range Error from nominal one yearDC curren

Strany 96 - Front Panel Disassembly

viii U3401A User’s and Service GuideWaste Electrical and Electronic Equipment (WEEE) Directive 2002/96/ECThis instruction complies with the WEEE Direc

Strany 97 - Replaceable Parts

4Performance Test 64 U3401A User’s and Service GuideResistance Verification TestConfiguration: 2- Wire Ω1 Select the resistance function.2 Select eac

Strany 98

Performance Test 4 U3401A User’s and Service Guide 65Diode Verification TestConfiguration: Diode1 Connect the calibrator to the front panel Hi and Lo

Strany 99

4Performance Test 66 U3401A User’s and Service GuideAC Voltage Verification TestConfiguration: AC volts1 Select the AC voltage function.2 Select each

Strany 100 - DC Specifications

Performance Test 4 U3401A User’s and Service Guide 67AC Current Verification TestConfiguration: AC current1 Select the AC current function.2 Select ea

Strany 101 - AC Specifications

4Performance Test 68 U3401A User’s and Service Guide

Strany 102 - True RMS AC Current

69U3401A 4 ½ Digit Dual Display MultimeterUser’s and Service GuideAgilent Technologies5Disassembly and RepairOperating Checklist 70Types of Service

Strany 103 - Frequency

5 Disassembly and Repair 70 U3401A User’s and Service GuideOperating ChecklistBefore returning your multimeter to Agilent for service or repair check

Strany 104 - Decibel (dB) Calculation

Disassembly and Repair 5 U3401A User’s and Service Guide 71Types of Service AvailableIf your instrument fails during the warranty period, Agilent Tech

Strany 105 - Measurement Specifications

5 Disassembly and Repair 72 U3401A User’s and Service GuideRepackaging for ShipmentIf the instrument is to be shipped to Agilent for service or repai

Strany 106

Disassembly and Repair 5 U3401A User’s and Service Guide 73To Replace the Power Line FuseThe power line fuse is located within the multimeter’s fuse-

Strany 107

U3401A User’s and Service Guide ixDeclaration of Conformity (DoC)The Declaration of Conformity (DoC) for this instrument is available on the Website.

Strany 108

5 Disassembly and Repair 74 U3401A User’s and Service GuideTo Replace a Current Input FuseBoth the mA and the A current input terminals are fuse prot

Strany 109

Disassembly and Repair 5 U3401A User’s and Service Guide 75Mechanical DisassemblyFor procedures in this manual, the following tools are required for d

Strany 110

5 Disassembly and Repair 76 U3401A User’s and Service Guide3 Remove the instrument bumpers. Pull from a corner and stretch the bumpers off the instru

Strany 111

Disassembly and Repair 5 U3401A User’s and Service Guide 775 Remove the cover. Remove the screw in the bottom of the cover and slide the cover off the

Strany 112 - Reading rates

5 Disassembly and Repair 78 U3401A User’s and Service Guide2 Remove the screw holding the front panel.3 Disconnect the two ribbon cable connectors fr

Strany 113 - General Characteristics

Disassembly and Repair 5 U3401A User’s and Service Guide 794 Disconnect the individual front panel wires shown below.5 There is now enough play to all

Strany 114

5 Disassembly and Repair 80 U3401A User’s and Service GuideFront Panel Disassembly1 Remove the keyboard and display assembly. Remove the two screws h

Strany 115

Disassembly and Repair 5 U3401A User’s and Service Guide 81Replaceable PartsThis section contains information for ordering replacement parts for your

Strany 116 - Accuracy Specifications

5 Disassembly and Repair 82 U3401A User’s and Service Guide

Strany 117 - Agilent Technologies

83U3401A 4 ½ Digit Dual Display MultimeterUser’s and Service GuideAgilent Technologies6Specifications and CharacteristicsDC Specifications 84AC Spe

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