Agilent Technologies U3402A User's Manual And Service Manual

Agilent U3402A

5 1/2 Digit Dual Display

Multimeter

User’s and Service Guide

Agilent Technologies

Notices

© Agilent Technologies, Inc. 2009–2013

No part of this manual may be reproduced in any form or by any means (including electronic storage and retrieval or translation into a foreign language) without prior agreement and written consent from Agilent

Technologies, Inc. as governed by United

States and international copyright laws.

Manual Part Number

U3402-90001

Edition

Fifth Edition, May 21, 2013

Printed in Malaysia

Agilent Technologies, Inc.

5301 Stevens Creek Blvd.

Santa Clara, CA 95051 USA

Warranty

The material contained in this document is provided “as is,” and is subject to being changed, without notice, in future editions. Further, to the maximum 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 particular purpose. Agilent shall not be liable for errors or for incidental or consequential damages in connection with the furnishing, use, or performance 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 separate 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 accordance with the terms of such license.

Restricted Rights Legend

U.S. Government Restricted Rights. Software and technical data rights granted to the federal government include only those rights customarily provided to end user customers. Agilent provides this customary commercial license in Software and technical 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 Computer Software Documentation).

Safety Notices

C A U T I O N

A CAUTION notice denotes a hazard. It calls attention to an operating 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 R N I N G

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

ii U3402A User’s and Service Guide

Safety Symbols

Direct current (DC)

The following symbol on the instrument and in the documentation indicates precautions that must be taken to maintain safe operation of the instrument.

Caution, risk of electric shock

Alternating current (AC)

Both direct and alternating current

Caution, risk of danger (refer to this manual for specific Warning or Caution information)

Out position of a bi-stable push control

Earth (ground) terminal

Protective conductor terminal

In position of a bi-stable push control

Frame or chassis terminal

CAT II

300 V

IEC Measurement Category II. Inputs may be connected to mains (up to 300 VAC) under Category II overvoltage conditions.

U3402A User’s and Service Guide iii

Regulatory Markings

The CE mark is a registered trademark of the European Community. This CE mark shows that the product complies with all the relevant European Legal

Directives.

ICES/NMB-001 indicates that this ISM device complies with the Canadian

ICES-001.

Cet appareil ISM est confomre a la norme NMB-001 du Canada.

The CSA mark is a registered trademark of the Canadian Standards

Association.

The C-tick mark is a registered trademark of the Spectrum

Management Agency of Australia. This signifies compliance with the Australia EMC Framework regulations under the terms of the

Radio Communication Act of 1992.

This instrument complies with the

WEEE Directive (2002/96/EC) marking requirement. This affixed product label indicates that you must not discard this electrical/electronic product in domestic household waste.

This symbol indicates the time period during which no hazardous or toxic substance elements are expected to leak or deteriorate during normal use.

Forty years is the expected useful life of the product.

iv U3402A User’s and Service Guide

General Safety Information

The following general safety precautions must be observed during all phases of operation, service, and repair of this instrument. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture, and intended use of the instrument. Agilent Technologies assumes no liability for the customer’s failure to comply with these requirements.

WA R N I N G

• Do not defeat power cord safety ground feature. Plug in to a grounded (earthed) outlet.

• Do not use instrument in any manner that is not specified by the manufacturer.

• Double-check the instrument’s operation by measuring a known voltage.

• For current measurement, turn off circuit power before connecting the instrument to the circuit. Always place the instrument in series with the circuit.

• When connecting probes, always connect the common test probe first. When disconnecting probes, always disconnect the live test probe first.

• Do not measure more than the rated voltage (as marked on the multimeter) between terminals, or between terminal and earth ground.

• Do not use repaired fuses or short-circuited fuse-holders. For continued protection against fire, replace the line fuses only with fuses of the same voltage and current rating and recommended type.

• Do not service or perform adjustments alone. Under certain conditions, hazardous voltages may exist, even with the instrument switched off. To avoid dangerous electric shock, service personnel must not attempt internal service or adjustment unless another person, capable of rendering resuscitation or first aid, is present.

• Do not substitute parts or modify instrument to avoid the danger of introducing additional hazards. Return the instrument to Agilent Technologies Sales and

Service Office for service and repair to ensure the safety features are maintained.

• Do not operate damaged instrument as the safety protection features built into this instrument may have been impaired, either through physical damage, excessive moisture, or any other reason. Remove power and do not use the instrument until safe operation can be verified by service-trained personnel. If necessary, return the instrument to Agilent Technologies Sales and Service Office for service and repair to ensure the safety features are maintained.

U3402A User’s and Service Guide v

C A U T I O N

• Turn off circuit power and discharge all high-voltage capacitors in the circuit before you perform resistance, continuity, or diode tests.

• Use the correct terminals, functions, and range for your instrument.

• Do not measure voltage when current measurement is selected.

• Use the instrument with the cables provided.

• Repair or service that is not covered in this manual should only be performed by qualified personnels.

vi U3402A User’s and Service Guide

Environmental Conditions

This instrument is designed for indoor use and in an area with low condensation. The table below shows the general environmental requirements for the instrument.

Environmental Conditions

Operating temperature

Operating humidity

Storage temperature

Altitude

Pollution degree

Requirements

Full accuracy from 0 °C to 50°C (Operating)

Full accuracy up to 80 % R.H. (relative humidity) for temperature up to 28°C

–20 °C to 60 °C (Non-operating)

Operating up to 2,000 metres (6,562 feet)

Pollution Degree 2

N O T E

The Agilent U3402A 5 1/2 digit dual display multimeter complies with the following EMC requirements:

• IEC 61010-1:2001/EN61010-1:2001 (2nd Edition)

• Canada: CAN/CSA-C22.2 No. 61010-1-04

• USA: ANSI/UL 61010-1:2004

• IEC 61326-1:2005/EN 61326-1:2006

• Canada: ICES/NMB-001: Issue 4, June 2006

• Australia/New Zealand: AS/NZS CISPR11:2004

U3402A User’s and Service Guide vii

Waste Electrical and Electronic Equipment (WEEE) Directive

2002/96/EC

This instruction complies with the WEEE Directive (2002/96/EC) marking requirement. This affixed product label indicates that you must not discard this electrical/electronic 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” product.

The affixed product label is shown as below:

viii

Do not dispose in domestic household waste

To return this unwanted instrument, contact your nearest Agilent office, or visit www.agilent.com/environment/product for more information.

U3402A User’s and Service 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

N O T E

If you are unable to search for the respective DoC, please contact your local Agilent representative.

U3402A User’s and Service Guide ix

In This Guide ...

1

Getting Started Tutorial

This chapter provides an introduction to the U3402A digital multimeter and a tutorial showing how to use the front panel in order to make measurements.

2

Operations and Features

This chapter explains the various functions and features available to the

U3402A digital multimeter.

3

Application Tutorial

This chapter describes the advanced features and the possible applications for effective operation of the multimeter.

4

Performance Test

This chapter contains performance test procedures. The performance test procedures allow you to verify that the multimeter is operating within its published specifications.

5

Disassembly and Repair

This chapter will help you troubleshoot a faulty multimeter. It describes how to disassemble the multimeter, how to obtain repair services, and lists the replaceable parts.

6

Specifications and Characteristics

This chapter describes the multimeter’s specifications and operating specifications

x U3402A User’s and Service Guide

Contents

U1253B User’s and Service Guide

1 Getting Started Tutorial

Introducing the Agilent U3402A Dual Display Multimeter

2

Checking the shipping contents 3

Connecting power to the multimeter

4

Stacking the U3402A

5

Adjusting the Handle

6

Product at a Glance

7

Product dimensions

7

The front panel at a glance 8

The display at a glance

9

The keypad at a glance 11

The terminals at a glance

14

The rear panel at a glance

16

Making Measurements

17

Performing voltage measurements 18

Performing current measurements

20

Performing frequency measurements

22

Performing resistance measurements 23

Performing diode/continuity test

25

Selecting a Range

30

Setting the Reading Rate

32

2 Operations and Features

Operating Math Operations

20

dBm 21

Rel

22

MinMax 23

Comp 25

xi

xii

Hold

26

Combination of Math Operations

27

Using the Secondary Display

29

Using the Setup Menu

31

Changing the Configurable Settings 32

3 Application Tutorial

Applications for Using Dual Display

52

Dual Display Operation Examples

53

Measure DC Voltage and AC Ripple on a Rectification

Circuit

53

Measure AC and DC Current on a Rectification Circuit 54

Measure AC Voltage and Frequency on an AC Circuit

55

Measure DC Voltage and DC Current on a Transistor Circuit or

Load

56

Measure Resistance Using 2-Wire Mode 58


Measure True RMS AC+DC 60

4 Performance Test

Calibration Overview

62

Agilent Technologies Calibration Services 62

Calibration Interval

62

Recommended Test Equipment

63

Test Considerations

64

Performance Verification Test Overview

65

Performance Verification Test 65

5 Disassembly and Repair

Operating Checklist

76



Types of Service Available

77

Repackaging for Shipment

78

Cleaning 78

To Replace the Power Line Fuse

79

To Replace a Current Input Fuse 80

Electrostatic Discharge (ESD) Precautions 80

Mechanical Disassembly 81

Replaceable Parts

87

To order replaceable parts

87

6 Specifications and Characteristics

DC Specifications

90

AC Specifications

93

Decibel (dB) Calculation

97

Supplemental Measurement Specifications

98

Display update rate

98

Measurement Specifications

98

Reading rates 105

General Characteristics

107

To Calculate Total Measurement Error

109

Accuracy Specifications

110

Transfer Accuracy

110

One-Year Accuracy

110

Temperature Coefficients 110

Configuring for Highest Accuracy Measurements

111

xiii

xiv U1253B User’s and Service Guide

List of Tables


Table 1-1

Display annunciators 9

Table 1-2

Keypad functions 11

Table 1-3

Input terminal for different measurement functions 15

Table 1-4

Range scale value in slow, medium, and fast reading rate 31

Table 1-5

Reading rates for single function measurements 32

Table 2-1

Math operations for different measurement functions 20

Table 2-2

Descriptions for combined math operations 28

Table 2-3

Description for dual display combination 30

Table 2-4

Setup menu and communication parameters 31

Table 3-1

Typical combinations and applications when using dual display 52

Table 4-1

Recommended test equipments 63

Table 4-2

DC voltage verification test 66

Table 4-3

DC current verification test 67

Table 4-4

2-wire W verification test 68

Table 4-5

4-wire W verification test 69

Table 4-6

Diode verification test 71

Table 4-7

Frequency verification test 71

Table 4-8

AC volts verification test 72

Table 4-9

AC current verification test 73

Table 5-1

Type of supplied fuse (according to country of destination) 79

Table 5-2

Type of current input fuse 80

Table 6-1

DC resolution, full scale reading, and accuracy [±(% of reading + count)] 90

Table 6-2

AC voltage resolution, full scale reading, and accuracy [±

(% of reading + count)] 93

Table 6-3

AC voltageac+dc resolution, full scale reading, and accuracy [± (% of reading + count)] 94

Table 6-4

AC current resolution, full scale reading, burden voltage, and accuracy [± (% of reading + count)] 95

Table 6-5

AC current ac+dc resolution, full scale reading, burden voltage, and accuracy [± (% of reading + count)] 96

xv

Table 6-6

Frequency resolution and accuracy [± (% of reading + count)] 96

Table 6-7

Range and accuracy (±dB) 97

Table 6-8

Full scale display update rates 98

Table 6-9

Supplemental measurement specifications 98

Table 6-10

Reading rates for single display (readings/second

(approx)) 105

Table 6-11

Reading rates for the dual display (readings/second

(approx)) 106

Table 6-12

General characteristics 107

xvi U1253B User’s and Service Guide

List of Figures


Figure 1-1

Stacking the U3402A 5

Figure 1-2

Type of handle position 6

Figure 1-3

Attaching and detaching the handle.

6

Figure 1-4

U3402A dimensions 7

Figure 1-5

Front panel 8

Figure 1-6

VFD full display with all segments illuminated.

9

Figure 1-7

Keypad 11

Figure 1-8

Input terminal 14

Figure 1-9

Rear panel 16

Figure 1-10

ACV terminal connection and display 18

Figure 1-11

DCV terminal connection and display 19

Figure 1-12

ACI RMS or DCI (mA) terminal connection and display 20

Figure 1-13

ACI RMS or DCI (A) terminal connection and display 21

Figure 1-14

Frequency terminal connection and display 22

Figure 1-15

2-wire W terminal connection and display 24

Figure 1-16

4-wire W terminal connection and display 24

Figure 1-17

Forward-biased diode/continuity test terminal connection and display 27

Figure 1-18

Reverse-biased diode/continuity terminal connection and display 27

Figure 1-19

2-wire/continuity test terminal connection and display 29

Figure 1-20

Reading rate annunciator 32

Figure 2-1

Typical dBm operation display 21

Figure 2-2

Typical Rel operation display 22

Figure 2-3

Typical Max operation display 23

Figure 2-4

Typical Min operation display 24

Figure 2-5

Typical Comp operation display 25

Figure 2-6

Typical Hold operation display 26

Figure 2-7

Combined math operations sequence 28

Figure 2-8

Secondary display 29

Figure 3-1

Terminal connection when measuring DC voltage and

AC ripple on a rectification circuit 53

xvii

Figure 3-2

Terminal connection when measuring AC and DC current on a rectification circuit 54

Figure 3-3

Terminal connection when measuring AC voltage and frequency on an

AC circuit 55

Figure 3-4

Terminal connection when measuring DC voltage and

DC current on a transistor circuit or load 57

Figure 3-5

Terminal connection when measuring resistance using

2-wire mode 58

Figure 3-6

Terminal connection when measuring resistance using

4-wire mode 59

xviii U1253B User’s and Service Guide

U3402A 5 1/2 Digit Dual Display Multimeter


1

Getting Started Tutorial

Introducing the Agilent U3402A Dual Display Multimeter 2

Checking the shipping contents 3

Connecting power to the multimeter 4

Stacking the U3402A 5

Adjusting the Handle 6

Product at a Glance 7

Product dimensions 7

The front panel at a glance 8

The display at a glance 9

The keypad at a glance 11

The terminals at a glance 14

The rear panel at a glance 16

Making Measurements 17

Performing voltage measurements 18

Performing current measurements 20

Performing frequency measurements 22

Performing resistance measurements 23

Performing diode/continuity test 25

Selecting a Range 30

Setting the Reading Rate 32

This chapter provides an introduction to the U3402A digital multimeter and a tutorial showing how to use the front panel in order to make measurements.


1

1 Getting Started

2

Introducing the Agilent U3402A Dual Display Multimeter

The key features of the U3402A dual display multimeter are:

• 5 ½–digit dual display measurement

• Eleven measurement functions:

•

AC voltage

•

DC voltage

•

AC + DC voltage

•

AC current

•

DC current

•

AC+DC current

•

2- wire resistance

•

4- wire resistance

•

Frequency

•

Continuity test

•

Diode test

• Five math operations:

•

dBm

•

Min/Max

•

Relative (Rel)

•

Compare (Comp)

•

Hold

• True RMS measurement for both AC+DC votage and current.

• Wide AC and DC current measurememt range; from 12 mA to 12 A.

• Resistance measurement up to 120 M

W with 1 mW resolution at slow reading rate or up to 300 M

W with 10 mW and 100 mW resolution at medium and fast reading rate respectively.

• Frequency measurement up to 1 MHz.

• dBm measurement with selectable reference impedance from 2

W to 8000 W and audio power measurement capability.

• Dynamic recording for minimum and/or maximum readings.


N O T E

Getting Started 1

Checking the shipping contents

Verify that you have received the following items with your multimeter:

•

Power cord

•

Standard test lead kit

•

Quick start guide

•

Product reference CD

•

Test report

•

Certificate of calibration

Inspect the shipping container for damage. Signs of damage may include a dented or torn shipping container or cushioning material that shows signs of unusual stress or compacting.

Carefully remove the contents from the shipping container and verify that any options ordered are included with the shipment by checking the packing list included with the shipment.

If anything is missing, contact your nearest Agilent Sales Office.

• If the shipping container or packaging material is damaged, it should be kept until the contents have been checked mechanically and electrically. If there is mechanical damage, notify the nearest Agilent Technologies office. Keep the damaged shipping materials (if any) for inspection by the carrier and Agilent representative. If required, you can find a list of Agilent Sales and Service Offices on the last page of this guide.

• Ensure you have read and understand the preceding safety information before you proceed.

Original packaging

Containers and materials identical to those used in the factory pakaging are available through Agilent Technologies office. If the multimeter is being returned to Agilent Technologies for servicing, attach a tag indicating the type of service required, return address, model number, and serial number. Also mark the container FRAGILE to assure careful handling. In any correspondence, refer to the multimeter by model number and serial number.

U3402A User’s and Service Guide 3

4


N O T E

Connecting power to the multimeter

Connect the power cord and press the power switch to turn on the multimeter.

The front panel display illuminates while the multimeter performs its power- on self- test. (If the multimeter does not power- on, refer to the

“Operating Checklist” on page 76). During the power- on session, press

to hold the full display. Press any key to resume the power- on self- test.

The multimeter powers up in the DC voltage function with autoranging enabled. If self- test is successful, the multimeter goes to normal operation.

If the self- test fails, either a full annunciator or a blank display is displayed without entering the normal operation. In the unlikely event that the self- test repeatedly fails, contact your nearest Agilent Sales and Service Office.

The multimeter will operate at any line voltage between 90 VAC and 264 VAC when the line voltage selector is set properly with frequency range 50 Hz or 60 Hz.

C A U T I O N

• Before turning on the multimeter, make sure the line voltage selector is set to the correct position for the applied line voltage to the power line cord connector.

• Do not apply a line voltage that exceeds the specified range of the line cord connector.



Stacking the U3402A

The U3402A is shipped with specially designed anti- slip protective bumpers on the front panel and rear panel. The multimeters will not slide off when stacked on top of each other.

To be able to stack the U3402A multimeters, ensure the attached bumpers are

in correct orientation. Refer to Figure 1- 1 .

Figure 1-1

Stacking the U3402A



Adjusting the Handle

To adjust the handle, grasp the handle by the side and pull outward. Then,

rotate the handle to the desired position. Figure 1- 2 below shows the possible

handle positions.

Carrying position

Benchtop position

Handle removal position

Figure 1-2

Type of handle position

To attach or detach the handle, rotate the handle upright and pull it out from the sides of the multimeter. Refer to

Figure 1- 3

.

6

Figure 1-3

Attaching and detaching the handle.



Product at a Glance

Product dimensions

Front view

Side view

226.0 mm

305.0 mm

Figure 1-4

U3402A dimensions


105.0 mm

7

8


The front panel at a glance

Primary display

Secondary display

Input terminals and current fuse

Measurement function keypads

Autoranging, manual range and comparator operation

Figure 1-5

Front panel

Math operation keypads

Shift Power on/off switch



The display at a glance

Figure 1-6

VFD full display with all segments illuminated.

The highly visible vacuum fluorescent display (VFD) annunciator are described in

Table 1- 1

.

Table 1-1 Display annunciators

Annunciator

Primary display

S

M

F

PEAK

HOLD

MIN

MAX

REL dBm

4 2 W

Description

AUTO

DC

AC

DCAC

Reading rate: Slow

Reading rate: Medium

Reading rate: Fast

Peak measurement. Not applicable for the U3402A.

Data hold

MinMax math operation: Minimum value shown on the primary display

MinMax math operation: Maximum value shown on the primary display

Relative value

Decibel unit relative to 1 mW

4-wire/2-wire resistance

Diode test

Audible continuity test for resistance

Autoranging

Direct current

Alternating current

AC + DC

Polarity, digits, and decimal points for primary display



10

2ND

AUTO

DC

AC

DCAC

COMP dBm

CAL

µnmF

ºC

ºF

% mV

µmA

S

Mk

W

MkHz

EXT

TRIG

REMOTE

LOCAL

STO

RCL

Table 1-1 Display annunciators

Annunciator

ºC

ºF mV

Description

Celcius temperature unit. Not applicable for the U3402A.

Fahrenheit temperature unit. Not applicable for the U3402A.

Voltage unit: mV, V

µmA

µmnF

Mk

W

MkHz

Current unit: µA, mA, A

Capacitance unit: nF, µF, mF. Not applicable for the U3402A.

Resistance unit:

W, kW, MW

Frequency unit: Hz, kHz, MHz

Secondary display

Polarity, digits, and decimal points for secondary display

Capacitance unit: nF, µF, mF. Not applicable for the U3402A.

Celcius temperature unit. Not applicable for the U3402A.

Fahrenheit temperature unit. Not applicable for the U3402A.

Duty cycle measurement. Not applicable for the U3402A.

Voltage unit: mV, V

Current unit: µA, mA, A

Shift mode

Resistance unit:

W, kW, MW

Frequency unit: Hz, kHz, MHz

Secondary display is enabled

Autoranging

Direct current

Alternating current

AC + DC

Compare operation

Decibel unit relative to 1 mW

Calibration mode. Not applicable for the U3402A.

External. Not applicable for the U3402A.

Trigger mode. Not applicable for the U3402A.

Remote interface control. For calibration use only.

Local mode

Store instrument state. Not applicable for the U3402A.

Recall stored instrument state. Not applicable for the U3402A.



The keypad at a glance

The operation for each key is shown in

Table 1- 2

. Pressing a key changes the current key operation, illuminates the related symbol on the display and emits a beep.

Figure 1-7

Keypad

Table 1-2 Keypad functions

Key

System related operation

Description

Press to power-on or power-off the U3402A multimeter.

+

+

Press to select Shift.

Press to return the multimeter to front panel operation when it is in remote state.

Press to step through the Setup menu. See

“Using the Setup Menu” on page 31 for more information.

Press to enable the secondary display.

Press to disable the secondary display.




Key Description

Measurement related operation

Press to select the DC voltage measurement.

Press to select the AC voltage measurement.

+

+

Press to select the DC current measurement.

Press to select the AC current measurement.

Press to select the AC+DC voltage measurement.

Press to select the AC+DC current measurement.

Press to toggle between the 2-wire resistance or 4-wire resistance measurement.

Press to select the frequency measurement.

+

Press to toggle between the diode and continuity measurement.

Press to select dBm measurement.

Press to toggle between manual ranging and autoranging.

Press to select a higher range and disable autoranging. See “Selecting a

Range” on page 30 for more information.

Press to select a lower range and disable autoranging. See

“Selecting a

Range” on page 30 for more information.

12 U3402A User’s and Service Guide



Key Description

Press to select compare math operation.

+

+

Press to select and set the high limit for compare math operation.

+

Press to select and set the low limit for compare math operation.

Press to enable Hold math operation. See “Hold” on page 26 for more

information.

Press to select the reference impedance for dBm measurement.

+

+

+

Press to enable the MinMax math operation.

Press to select the reading rate. See

“Setting the Reading Rate” on page 32 for more information.

Press to select the relative math operation.

Press to toggle in and out of the relative base (Rel#). See “Rel” on page 22

for more information.



The terminals at a glance

C A U T I O N

To avoid damaging this multimeter, do not exceed the rated input limit.

14

N O T E

Figure 1-8

Input terminal

Voltages above 300 VAC may be measured only in circuits that are isolated from mains.

However, transient overvoltages are also present on circuits that are isolated from mains.

The Agilent U3402A is designed to safely withstand occasional transient overvoltages up to

2500 V PEAK. Do not use this multimeter to measure circuits where transient overvoltages could exceed this level.



Table 1-3 Input terminal for different measurement functions

Measurement function

DC voltage (VDC)

Input terminal

AC voltage (VAC), frequency (Hz)

Miliampere (mA), frequency (Hz)

12A, frequency (Hz)

V

W Hz (Hi) mA

12A

Lo

Overload protection

1000 VDC

750 VAC RMS, 1100 V PEAK,

2x10

7

V-Hz normal mode, or

1x10

6

V-Hz common mode

1200 mADC or AC RMS

12 ADC or AC RMS for continuous 30 seconds, or

10 ADC or AC RMS

2-wire resistance (

W (2W))

Diode test, continuity test

4-wire resistance (

W (4W))

All functions

V

W Hz

Hi

Any terminal to earth

500 VDC or AC RMS

250 VDC or AC RMS

1000 VDC or AC PEAK



The rear panel at a glance

AC line voltage selector

Line voltage fuse selection table

16

AC power connector

AC line fuse Chassis ground lug

Figure 1-9

Rear panel

RS232 interface connector

(For calibration use only)



Making Measurements

N O T E

The following pages show you how to make measurement connections and how to select measurement functions from the front panel for each of the measurement functions.

• After measuring a high voltage measurement of up to 1000 VDC, you are recommended to wait for approximate two minutes before measuring a low-level measurement with

1 to 10 µV resolutions.

• After measuring a high current measurement using the A input terminal, you are recommended to wait for approximate ten minutes before measuring a low-level DC measurements of volts, amperes, or ohms; to achieve accurate measurement. This is due to the thermal voltages generated during the high current measurements that may cause errors when measuring the low-level measurements.



Performing voltage measurements

C A U T I O N

Ensure that the terminal connections are connected correctly before making any measurement. To avoid damaging the multimeter, do not exceed the rated input limit.

AC voltage:

• Five ranges:

•

Slow reading rate: 120.000 mV, 1.20000 V, 12.0000 V, 120.000 V, 750.00 V.

•

Medium reading rate: 400.00 mV, 4.0000 V, 40.000 V,400.00 V, 750.0 V.

•

Fast reading rate: 400.0 mV, 4.000 V, 40.00 V, 400.0 V, 750 V.

• Measurement method: AC coupled true RMS—measures the AC component with up to 400 VDC bias on any range

• Crest factor: Maximum 3:0 at full scale

• Input impedance: 1 M

W ± 2% in parallel with < 120 pF on all ranges

• Input protection: 750 V RMS on all ranges

1 Press .

2 Connect the red and black test leads to the respective input terminals as shown in

Figure 1- 10 .

3 Probe the test points and read the display. In autoranging mode, the multimeter automatically selects the appropriate range and the measurement is displayed.

+

ACV voltage source

–

18

Figure 1-10 ACV terminal connection and display



DC voltage:

• Five ranges:

•

Slow reading rate: 120.000 mV, 1.20000 V, 12.0000 V, 120.000 V, 1000.00 V.

•

Medium reading rate: 400.00 mV, 4.0000 V, 40.000 V, 400.00 V, 1000.0 V.

•

Fast reading rate: 400.0 mV, 4.000 V, 40.00 V, 400.0 V, 1000 V.

• Measurement method: Sigma Delta A-to-D converter

• Input impedance: 10 M

W ± 2% range (typical)

• Input protection: 1000 V on all ranges

1 Press .

2 Connect the red and black test leads to the respective input terminals as shown in

Figure 1- 11 .

3 Probe the test points and read the display. In autoranging mode, the multimeter automatically selects the appropriate range and the measurement is displayed.

+

DCV voltage source

–

Figure 1-11 DCV terminal connection and display



Performing current measurements

Measuring AC (RMS) or DC Current

in mA

• Three AC current or DC current ranges:

•

Slow reading rate: 12.0000 mA, 120.000 mA, 1.20000 A

•

Medium reading rate: 40.000 mA, 120.00 mA, 1.2000 A

•

Fast reading rate: 40.00 mA, 120.0 mA, 1.200 A

• Shunt resistance: 0.1

W to 10 W for 12 mA to 1.2 A range

• Input protection: Front panel 1.25 A, 500 V FH fuse for one terminal

1 Press

.

2 Power off the measured circuit.

3 Connect the red and black test leads to mA input terminal as shown in

Figure 1- 12

.

4 Probe the test points in series with the circuit

5 Power on the measured circuit and read the display.

+

ACI or DCI current source

–

Figure 1-12 ACI RMS or DCI (mA) terminal connection and display



N O T E

Measuring AC (RMS) or DC Current

up to 12 A

• One range:

•

12.0000A for DC or AC RMS continuous

•

12.0000 ADC or AC RMS for maximum 30 seconds

• Shunt resistance: 0.01

W for 12 A range

• Input protection: Internal 15 A, 600 V fuse for 12A terminal

1 Press

.

2 Power off the measured circuit.

3 Connect the red and black test leads to the A input terminal as shown in

Figure 1- 13

.

4 Probe the test points in series with the circuit.

5 Power on the measured circuit and read the display.

Autoranging is not applicable for current measurement up to 12 A. You are required to select the range manually when a signal is applied to the A terminal.

–

ACI or DCI current source

+

Figure 1-13 ACI RMS or DCI (A) terminal connection and display



Performing frequency measurements

WA R N I N G

Use the frequency counter for low voltage applications. Do not use the frequency counter on AC power line systems.

Measuring frequency

• Five ranges: 120.000 mV, 1.20000 V, 12.0000 V, 120.000 V, 750.00 V — range is based on the voltage level of the signal, not frequency

• Measurement method: Reciprocal counting technique

• Signal level: 10% of range to full scale input on all ranges

• Gate time: 0.1 s or 1 period of the input signal, whichever is longer


1 Press .

2 Connect the red and black test leads to the input terminal as shown in

Figure 1- 14

.

3 Probe the test points and read the display. In autoranging mode, the multimeter automatically selects the appropriate range and the measurement is displayed.

+

Frequency source

–

22

Figure 1-14 Frequency terminal connection and display



Performing resistance measurements

C A U T I O N

Disconnect circuit power and discharge all high-voltage capacitors before measuring resistance to avoid damaging the multimeter or the device under test.

Measuring resistance

• Seven ranges:

•

Slow reading rate: 120 .000

W, 1.20000 kW, 12.0000 kW, 120.000 kW, 1.20000 MW, 12.0000 MW,

120.000 M

W

•

Medium reading rate: 400 .00

W, 4.0000 kW, 40.000 kW, 400.00 kW, 4.0000 MW, 40.000 MW,

300.00 M

W

•

Fast reading rate: 400 .0

W, 4.000 kW, 40.00 kW, 400.0 kW, 4.000 MW, 40.00 MW, 300.0 MW

• Measurement method: 2-wire ohms or 4-wire ohms, open circuit voltage limited to < 5 V

• Input protection: 500 V on all ranges

1 Press . The default function is 2- wire

W measurement.


Figure 1- 15 or Figure 1- 16 on page 24 respectively (according to the

selected measurement method).

3 Probe the test points (by shunting the resistor) and read the display. In autoranging mode, the multimeter automatically selects the appropriate range and the measurement is displayed.



Resistance

+

–

Test current

Figure 1-15 2-wire

W

terminal connection and display

Resistance

+

–

Test current

Figure 1-16 4-wire W terminal connection and display



N O T E

Performing diode/continuity test

Testing diodes

The diode test measures the forward voltage of a semiconductor junction of approximately 0.5 mA. The beeper will emit a single beep tone when the input voltage is below +0.7 V (approximately 1.4 k

W) and emits a continuous beep tone when the input voltage is below 50 mV (approximately 100

W).

Measurements are displayed as shown below:

Reading rate

Slow

Medium

Fast

Measurement display

1.2 V range

2.5 V range

4.0 V range

The measurement value will display OL (overload) when the voltage measured is

• > 1.2 V at slow reading rate

• > 2.5 V at medium reading rate

• > 4.0 V at fast reading rate

C A U T I O N

Disconnect circuit power and discharge all high-voltage capacitors before testing diodes to avoid damaging the multimeter.

• Measurement method: 0.83 mA ± 0.2% constant current source, open-circuit voltage limited to < 5 V

• Response time: 70 samples per seconds with audible tone

• Gate time: 0.1 s or 1 period of the input signal, whichever is longer




N O T E

To test a diode, switch the circuit power off, and remove the diode from the circuit. Then proceed as follows:

1 Press . The default function is diode measurement.


Figure 1- 17

.

3 Connect the red test lead to the positive terminal (anode) of the diode and

the black test lead to the negative terminal (cathode). Refer to Figure 1- 17 .

The cathode of a diode is indicated with a band.

4 Read the display.

5 Reverse the probes and measure the voltage across the diode again as shown

in Figure 1- 18

. Assess the diode according to the following guidelines:

• A diode is considered good if the multimeter displays

OL in reverse bias mode.

• A diode is considered shorted if the multimeter displays approximately

0 V in both forward and reverse bias modes, and the multimeter beeps continuously.

• A diode is considered open if the multimeter displays

OL in both forward and reverse bias modes.



Forward bias

+

–

Test current

Figure 1-17 Forward-biased diode/continuity test terminal connection and display

Reverse bias

+

Test current

–

Figure 1-18 Reverse-biased diode/continuity terminal connection and display



C A U T I O N

Testing Continuity

The continuity test measures the resistance of a tested circuit with 2- wire method at approximately 0.5 mA and determines whether the circuit is intact.

The beeper emits a continuous beep tone when the input resistance value is less than the approximate 10

W.

Measurement are displayed as shown below:

Reading rate Measurement display

Slow 120.000

W range

Medium

Fast

400.00

W range

400.0

W range

Disconnect circuit power and discharge all high-voltage capacitors before testing the circuit continuity to avoid damaging the multimeter or the device under test.

• Measurement method: 0.83 mA ± 0.2% constant current source, open circuit voltage limited to < 5 V

• Continuity threshold: 10

W fixed


1 Press

to toggle to the continuity measurement function.


Figure 1- 19

.

3 Probe the test points and read the display.


Resistance

+

–

Test current

Figure 1-19 2-wire/continuity test terminal connection and display




Selecting a Range

You can allow the multimeter to select the range automatically by using autoranging, or you can select a fixed range using manual ranging.

Auto- ranging is convenient because the multimeter automatically selects the appropriate range for sensing and displaying each measurement. However, manual ranging results in better performance, since the multimeter does not have to determine which range to use for each measurement.

Selects autoranging and disables manual ranging. Press to toggle between the manual ranging and autoranging.

Selects a higher range and disable autoranging.

Selects a lower range and disable autoranging.

For dual display, the measurement range for primary and secondary display as stated below is similar and is unable to be changed independently.

•

DCV/DCV

•

DCV/ACV

•

ACV/DCV

•

ACV/ACV

•

ACV+DCV/DCV

•

ACV+DCV/ACV

•

•

•

•

•

•

DCI/DCI

DCI/ACI

ACI/DCI

ACI/ACI

ACI+DCI/DCI

ACI+DCI/ACI

• Autoranging is selected at default factory power- on.

• Manual ranging — If the input signal is greater than can be measured on the selected range, the multimeter will display an overload indication, OL on the primary or secondary display front panel.

• The multimeter remembers the selected ranging method (auto or manual) and the selected manual range for each measurement function.



N O T E

• Autorange thresholds — The multimeter shifts ranges as follows:

•

Down range at < 5% of current range

•

Up range at > full scale of current range

•

Table 1- 4

shows the summary of range values for slow, medium, and fast reading rate respectively.

Autoranging is not applicable for current measurement up to 12 A. You are required to select the range manually when a signal is applied to the A terminal.

Table 1-4 Range scale value in slow, medium, and fast reading rate

Measurement function

Slow reading rate

Range

Medium reading rate Fast reading rate

Autoranging

DCV

ACV, DCV + ACV

DCI, ACI, DCI + ACI

DCI, ACI, DCI + ACI

120.000 mV, 1.20000 V,

12.0000 V, 120.000 V,

1000.00 V

120.000 mV, 1.20000 V,

12.0000 V, 120.000 V,

750.00 V

12.0000 mA, 120.000 mA,

1200.00 mA

12.0000 A

[ 1 ]

400.00 mV, 4.0000 V,

40.000 V, 400.00 V,

1000.0 V

400.00 mV, 4.0000 V,

40.000 V, 400.00 V,

750.0 V

40.000 mA, 120.00 mA,

1200.0 mA

12.000 A

[ 1

]

400.0 mV, 4.000 V,

40.00 V, 400.0 V, 1000 V

400.0 mV, 4.000 V,

40.00 V, 400.0 V, 750 V

40.00 mA, 120.0 mA,

1200 mA

12.00 A

[ 1

]

Manual only

Frequency

Resistance

[ 2

]

1200.00 Hz, 12.0000 kHz,

120.000 kHz, 1.00000 MHz

120.000

W, 1.20000 kW,

12.0000 k

W, 120.000 kW,

1.20000 M

W, 12.0000 MW,

120.000 M

W

1200.0 Hz, 12.000 kHz,

120.00 kHz, 1.0000 MHz

400.00

W, 4.0000 kW,

40.000 k

W, 400.00 kW,

4.0000 M

W, 40.000 MW,

300.00 M

W,

1200 Hz, 12.00 kHz,

120.0 kHz, 1.000 MHz

400.0

W, 4.000 kW,

40.00 k

W, 400.0 kW,

4.000 M

W, 40.00 MW,

300.0 M

W,

Diode test

1.20000 V 2.5000 V 2.500 V

2-wire

W/120 W

2-wire

W/400 W

2-wire

W/400 W

Fixed range

Continuity

(continuity mode) (continuity mode) (continuity mode)

Notes

:

1 10 A continuous DC or AC RMS; 12 A DC or AC RMS for 30 seconds maximum.

2 A shielded test cable is recommended when measuring resistance more than 120 k

W to eliminate noise interference that might be induced to the test leads.



Setting the Reading Rate

You can select three reading rates for the AC and DC voltage, AC and DC current, and resistance measurement which are Slow (

S), Medium (M), and

Fast (

F)

The selected rate allows you to maximize either the measurement speed or noise rejection, which affects the measurement accuracy. Refer to

Table 1- 5

.

Table 1-5 Reading rates for single function measurements

Reading rate Resolution Display counts

[1][2]

Slow 5 ½ 119,999

Medium 4 ½ 39,999

Fast

Notes:

3 ½ 3,999

1 In VDC 1000 V range, the display counts is limited up to 1200.00, 1200.0 and 1200 for slow, medium, and fast reading rate respectively.

2 In VAC 750 V range, 1000 V RMS is measureable.

The annunciator S, M, and F (slow, medium and fast respectively) are located at the corner left of the display indicates the selected rate on the primary display. Refer to

Figure 1- 20

.

32

Figure 1-20 Reading rate annunciator

N O T E

Press to cycle through the available reading rates ( S, M, or F).

In the dBm function, the display counts is 0.01 dBm for slow or medium reading rate and

0.1 dBm for fast reading rate.




2

Operations and Features

Operating Math Operations 20

dBm 21

Rel 22

MinMax 23

Comp 25

Hold 26

Combination of Math Operations 27

Using the Secondary Display 29

Using the Setup Menu 31

Changing the Configurable Settings 32

This chapter explains the various functions and features available to the U3402A digital multimeter


19


Operating Math Operations

Table 2- 1

presents a summary of the math operations that can be used with each measurement function.

Table 2-1 Math operations for different measurement functions

Measurement functions dBm Rel

Allowed math operations

Min Max Comp Hold

DCV

DCI

Resistance

ACV

ACI

Frequency

Diode/Continuity

—

—

—

—

—

• All math operations can be toggled on and off by reselecting the same math operation.

• Only one math operation can be turned- on at a time. When selecting another math operation when one is already on, you are required to turn- off the first operation and then turn- on the second math operation.

• All math operations are automatically turned- off when changing the measurement functions.

• Range changing is allowed for all math operations.


Operations and Features 2

dBm

The logarithmic dBm (decibels relative to one milliwatt) scale is often used in

RF signal measurements. The multimeter’s dBm operation takes a measurement and calculates the power delivered to a reference impedance

(typically 50, 75, or 600

W). The formula used for conversion from the voltage reading is:

dBm

= 10 x Log

10

[ 1000 x (Reading

2

/ reference impedance

)

]

Figure 2-1

Typical dBm operation display

The default reference impedance value is 600

W. You can select the following 21 reference impedance values:

2

W, 4 W, 8 W, 16 W, 50 W, 75 W, 93 W, 110 W, 124 W, 125 W, 135 W, 150 W, 250 W,

300

W, 500 W, 600 W, 800 W, 900 W, 1000 W, 1200 W, or 8000 W..

If reference impedance 2

W, 4 W, 8 W, or 16 W is selected, the dBm operation is displayed in watt (power).

Numeric results are in the range of ±120.000 dBm with 0.01 dBm resolution shown, independent of the number of digits setting.

The dBm operation can be applied to DCV and ACV measurement functions only. The multimeter displays the dBm operation on the primary display and displays the reference impedance selection on the secondary display.

Procedure 1

1 Press to enter dBm operation.

2 Use to select the desired reference impedance.

3 Press

to store the selected value and read the display.



Procedure 2

1 Press . The reference impedance currently used will be displayed on the secondary display.

2 Use to select the desired reference impedance.

3 Press to store the selected value.

4 Press to enable the dBm operation and read the display.

Rel

When making Rel (relative) measurements, each reading is the difference between a stored relative value and the input signal. For example, this feature can be used to make more accurate resistance measurements by nulling the test lead resistance.

After you enable the Rel operation, the multimeter stores the next reading as a

Rel # (relative base) and immediately displays on the primary display:

Primary Display = Reading – Rel #

22

Figure 2-2

Typical Rel operation display

The multimeter allows relative settings for the following measurement functions: DC voltage, AC voltage, DC current, AC current, resistance, and frequency.



N O T E

Procedure

1 Press

2 Press

to enable Rel operation.

to toggle in (and out) the Rel #.

3 Use , , , and to modify the Rel #.

4 Press to set the Rel # and read the display.

5 Press

to disable the Rel operation.

• In resistance measurement mode, the multimeter will read a non-zero value even when the two test leads are in direct contact, because of the resistance of these leads. Use the Rel operation to zero-adjust the display.

• In DC voltage measurement mode, the thermal effect will influence the accuracy. Short the test leads and press the display.

once the displayed value is stable to zero-adjust

MinMax

The MinMax (Minimum/Maximum) operation stores the minimum and maximum values of reading during a series of measurements.

When enabled, the MinMax operation turns on the

MINMAX

annunciator and begins accumulating various statistics of the readings being displayed.

Figure 2-3

Typical Max operation display



24

N O T E

Figure 2-4

Typical Min operation display

Each time a new minimum or maximum value is stored, the multimeter beeps once (if the beeper is enabled) and briefly turns on the appropriate

MAX

or

MIN

annunciator.

Accumulated statistics are:

• MAX—maximum reading since MinMax was enabled

• MIN—minimum reading since MinMax was enabled

• MINMAX—actual readings

When MinMax is enabled, the measurement range changed to manual ranging and the current measurement mode is locked until MinMax is disabled (with other ranges being selected or autoranging is enabled).

Procedure

1 Press

to enable MinMax operation.

2 Press to cycle through the available MINMAX operations ( MIN, MAX, or MINMAX).

3 Press to disable the MinMax operation.



Comp

The Comp (compare) operation allows you to perform pass/fail testing against specified upper and lower limits. You can set the upper and lower limits to any value between 0 and

\100% of the highest range for the present function.

Figure 2-5

Typical Comp operation display

When enabled, the actual readings are shown in primary display and the comparison results such as

HI, LO, or PASS is shown in secondary display.

• You should specify the upper limit to always be a more positive number than the lower limit. The initial factory setting for

LO limit is 0.

• The secondary display shows

PASS

when readings are within the specified limits. The secondary display shows

HI

when the reading is outside the high limit and

LO

when the reading is outside the low limit.

• When the beeper is ON (see

“Using the Setup Menu” on page 31), the beeper

beeps on the transition from

PASS

to HI or PASS to LO or when transitioning directly from

HI

to LO or LO to HI (no PASS in between).

• Press to enable Comp operation.

Procedure

1 Press

to enter the upper limit setup mode.

The upper limit is shown on primary display while the HI annunciator is shown on secondary display.

2 Use

, , , and to modify the upper limit.



3 Press

to store the specified value.

4 Press to enter the lower limit setup mode.

The lower limit is shown on primary display while the LO annunciator is shown on secondary display.

5 Use

6 Press

, , , and to modify the lower limit.

to store the specified value.

7 Press

8 Press

to enable the Comp operation.

to disable the Comp operation or exit.

Hold

The reading hold feature allows you to capture and hold a reading on the front panel display. When enabled, the Hold operation turns on the

Hold

annunciator and hold the reading.

Procedure

1 Press

to hold the reading on the display.

Figure 2-6

Typical Hold operation display



Combination of Math Operations

The math operation can be operated for primary display only.

N O T E

The Agilent U3402A multimeter allows you to use multiple math operation such as dBm, MinMax, Rel, Hold, and Comp simultaneously.

Example:

Set upper and lower limit for Comp operation using multiple math operation as below:

1 Press to enable dBm operation.

2 Press

to take dBm readings as Rel # for new measurement.

3 Press

to record the Max value as the new Rel # (upper limit).

4 Press

to record the Min value as the new Rel # (lower limit).

5 Press to enable the Comp operation.

The step- by- step sequence and readings of the combined math operations are shown in

Table 2- 2 on page 28 when all math operations are used

sequentially. Refer to

Figure 2- 7

.



Table 2-2 Descriptions for combined math operations

Description

1

2

No.

Math operation sequence

3 dBm

Rel

Min

4

5

Max

Comp

Readings

Reading is calculated to a dBm operation dBm reading, “A” is taken as Rel #

Min reading of relative dB is recorded as a new Rel #, “B”

Max reading of relative dB is recorded as a new Rel #, “B”

Compare operation is performed based on the readings of “C” and “D”

“A”

“B”

“C”

“D”

“E”

1. Press

2. Press

3. Press

4. Press

28

5. Press

Figure 2-7

Combined math operations sequence



Using the Secondary Display

To enable the secondary display mode:

1 Press followed by a specified function keys such as ,

, , or to enable the secondary display mode.

The

2ND annunciator is displayed along with the secondary display.

,

Secondary display

2ND annunciator

Figure 2-8

Secondary display

To disable the secondary display mode:

1 Press

.

Table 2- 3 details the available input combinations for both primary and

secondary display when dual display mode is selected.



Table 2-3 Description for dual display combination

Primary display

DCV ACV

Secondary display

DCI

[

4 ]

ACI

[

4 ]

Hz

[ 7

]

DCV

ACV

DCI

[

4 ]

ACI

[

4 ]

[ 1 ]

[ 1 ]

[ 1 ]

[ 1 ]

[ 1 ]

[ 1 ]

[ 1 ]

[ 1 ]

[

2

]

[

2

]

ACV + DCV

ACI + DCI

[ 4

]

[ 1 ] [ 1 ]

[ 1 ] [ 1 ]

[

2

]

Frequency

[ 7

]

Resistance

[ 3

]

Diode/Continuity

[ 5 ]

[ 5 ]

[ 2 ] [ 2 ]

[ 5 ]

[ 5 ]

[

5

]

[

5

]

dBm

[

6 ]

Notes:

1 The range for both primary and secondary display are corresponding to the higher range of two displays (autoranging mode, while the range of secondary display are the same as the primary displays (manual range mode).

2 The frequency measurement corresponding to the current input signals; other measurements are corresponding to the voltage input signals.

3 In dual display mode, users are recommended to measure the resistance up to 1 M

W.

4 At 12 A range, manual range mode is selected by default.

5 Measurable with non-guaranteed accuracy.

6 Autoranging mode by default.

7 The voltage or current range of the frequency function follows the voltage or current range of the other function.

N O T E

In dual display mode, the

The multimeter has an increased key response time (0.6 s to 1 s) when in dual display mode. You may need to press the selected key until the multimeter responses.



Using the Setup Menu

The Setup menu allows you to customize a number of non- volatile instrument

configurations. The content of the Setup menu are shown in Table 2- 4 .

Table 2-4 Setup menu and communication parameters

First tier menu

Description Second tier menu

Description Default factory setting

Available settings

rS232

[ 1

]

RS232 interface parameters bAUd

PArtY dAtA

Baud rate for remote communication with a

PC (remote control).

Parity bit for remote communication with a

PC.

Data bit length for remote communication with a PC.

Stop bit.

9600

None

8

300, 600, 1200, 2400,

4800 or 9600

None, odd, or even

7 or 8

StoP 1 1 or 2

Echo

ECHO. Return a character to PC in remote communication.

OFF ON or OFF

Print

Printer-Only. Print measured data to a PC in remote communication.

OFF ON or OFF bEEP

[ 2

]

Beeper selection ON ON or OFF

Notes:

1 For calibration use only.

2 The beeper is use to simplify the multimeter operation. It is not a communication related parameter.



Changing the Configurable Settings

The parameters in the Setup menu can be configured by using the following procedures:

1 Press

to access to the Setup menu.

2 Use and tier menu.

If you select bEEP,

to select the desired configurable items in the first

a Use

b Press

and to select the desired parameter.

to confirm the selected parameter.

c Press to quit from the Setup menu.

d The configuration settings is saved and main display is displayed.

If you select rS232,

a Press to enter the second tier menu.

b Use

and to select the desired configurable items.

c Use

and to select the desired parameters.

d Press

to confirm the selected parameter.

e Press

to quit from the tier menu or quit from the Setup menu.

f

The configuration settings is saved and main display is displayed.




3

Application Tutorial

Applications for Using Dual Display 52

Dual Display Operation Examples 53

Measure DC Voltage and AC Ripple on a Rectification Circuit 53

Measure AC and DC Current on a Rectification Circuit 54

Measure AC Voltage and Frequency on an AC Circuit 55

Measure DC Voltage and DC Current on a Transistor Circuit or Load 56



Measure True RMS AC+DC 60

This chapter describes the advanced features and the possible applications for effective operation of the multimeter.


51


Applications for Using Dual Display

The dual display feature in the multimeter can be used to enhance test and

measurement capabilities. See Table 3- 1 for the available combinations and

application when using dual display.

Table 3-1 Typical combinations and applications when using dual display

No.

Primary display Secondary display

1 DCV ACV

2 ACV + DCV DCV

3

4

5

6

DCV

DCV

ACI + DCI

ACV

7

8

ACI + DCI

ACV

9 ACV

10 ACI

11 DCI

12 ACI + DCI

13 dBm

14 dBm

15 dBm

16 dBm

DCI

ACI

DCV

DCI

ACV

ACI

Frequency

Frequency

ACI

DCI

Reference

W

DCV

ACV

Frequency

Applications

• Test DC to AC or AC to DC converter circuit.

• Measure DC level and AC ripple of power supply.

• Test power supply load regulation.

• Check loop current and voltage drop level.

• Test line and load regulation.

• Test AC to DC or DC to AC converters.

• Measure DC level and AC ripple of power supply.

• Test transformer.

• Measure AC frequency response of amplifier circuit.

• Adjust AC motor control.

• Measure AC ripple and DC current of power supply.

• Measure current dissipation for power supply analysis.

• Set dB reference impedance and show dBm.

• Indicate DC voltage and dBm.

• Indicate AC voltage and dBm.

• Check frequency response.


Application Tutorial 3

Dual Display Operation Examples

This section describes some practical operations when using dual display feature.

Measure DC Voltage and AC Ripple on a Rectification Circuit

A single measurement for both DC voltage and AC ripple can be displayed through both display while testing a rectifier circuit.

1 Connect the red and black test leads to the input terminal and probe the test

points as shown in Figure 3- 1

.

AC/DC voltage source

+

–

Figure 3-1

Terminal connection when measuring DC voltage and AC ripple on a rectification circuit

2 Press

3 Press

4 Press

to select DC voltage measurement for primary display.

to enable the secondary display. The 2ND is displayed.

to select AC voltage measurement for secondary display.



N O T E

to select autoranging or manual ranging for the primary and secondary display. The ranging will be the same for both displays.

• Press to disable the secondary display.

• Press to select the suitable range if DCV+ACV ripple is above the scale of the current range.

Measure AC and DC Current on a Rectification Circuit

A single measurement for both AC current and DC current can be displayed through both display while testing a rectifier circuit.

WA R N I N G

• Make sure you select the correct input terminal according to the input range used.

• Do not apply more than 12 A to the A input terminal to avoid the multimeter from damage.

1 Connect the red and black test leads to the input terminal and probe the test points as shown in

Figure 3- 2

.

AC/DC current source

–

+

54

Figure 3-2

Terminal connection when measuring AC and DC current on a rectification circuit



N O T E

2 Press

to select AC current measurement for primary display.

to select autoranging or manual ranging for secondary display.

4 Press to enable the secondary display. The 2ND is displayed.

5 Press

Press

to select DC current measurement for secondary display.

to disable the secondary display.

Measure AC Voltage and Frequency on an AC Circuit

A single measurement for both AC voltage and frequency can be displayed through both display while testing a rectifier circuit.



.

AC voltage source

+

–

Figure 3-3

Terminal connection when measuring AC voltage and frequency on an

AC circuit

2 Press to select AC voltage measurement for primary display.



N O T E

to select autoranging or manual ranging for primary display.


5 Press to select frequency measurement for secondary display.



Measure DC Voltage and DC Current on a Transistor Circuit or

Load

A single measurement for both DC voltage and current can be displayed through both display while testing a transistor amplifier circuit. You may also check the H fe

or calculate the DC load consumption by using the dual display.

WA R N I N G

• Make sure you select the correct input terminal according to the input range used.

• Do not apply more than 12 A to the A input terminal to avoid the multimeter from damage.





.

DC voltage source

+

Load

–

N O T E

Figure 3-4

Terminal connection when measuring DC voltage and DC current on a transistor circuit or load

2 Press to select DC voltage measurement for primary display.



5 Press

to select DC current measurement for secondary display.





Measure Resistance Using 2-Wire Mode

WA R N I N G

Do not apply voltage exceeding 500 V PEAK between V.

W

.Hz and Lo input terminals.

1 Connect the red and black test leads to the resistor and probe the test points as shown in

Figure 3- 5

.

Resistance

+

–

N O T E

Figure 3-5

Terminal connection when measuring resistance using 2-wire mode

2 Press

to select the 2- wire

W measurement for primary display. The

2W is displayed.


When measuring low resistance, you may use the Rel operation to reduce the measurement error created by the test leads resistance and contact resistance in the test loop (0.1

W~ 0.5 W typical)



Measure Resistance Using 4-Wire Mode

WA R N I N G

Do not apply voltage exceeding 250 V PEAK between Sense Hi and Sense Lo terminals, and 500 V PEAK between V.

W

.Hz and Lo input terminals.

1 Connect the red and black test leads to the resistor and probe the test points as shown in

Figure 3- 6

.

Resistance

+

–

Figure 3-6

Terminal connection when measuring resistance using 4-wire mode

2 Press

to select the 4- wire

W measurement for primary display. The

4W is displayed.




Measure True RMS AC+DC

The multimeter can measure the true RMS value of the AC voltage and AC current.

1 Press

and , or and simultaneously. The multimeter will measure the DC and AC signals alternatively, calculate and display the AC+DC (RMS) value using the equation below:

AC+DC (RMS) = DC

2

+ AC

2

N O T E

When AC+DC voltage measurement is selected, the DCV input impedance is paralleled with the AC coupled 1.1 M

W AC divider.




4

Performance Test

Calibration Overview 62

Agilent Technologies Calibration Services 62

Calibration Interval 62

Recommended Test Equipment 63

Test Considerations 64

Performance Verification Test Overview 65

Performance Verification Test 65

DC Voltage Verification Test 65

DC Current Verification Test 67

Resistance Verification Test 68

Diode Verification Test 71

Frequency Verification Test 71

AC Voltage Verification Test 72

AC Current Verification Test 73

This chapter contains performance test procedures. The performance test procedures allow you to verify that the multimeter is operating within its published specifications.

WA R N I N G

Shock hazard. Only service-trained personnel who are aware of the hazards involved should perform the procedures in this chapter. To avoid electrical shock and personal injury, make sure to read and follow all test equipment safety instructions.

Use only completely electrically insulated test lead sets with connectors that prevent contact with test voltages.


61


Calibration Overview

N O T E

Make sure you have read “Test Considerations” on page 64 before

calibrating the multimeter.

Agilent Technologies Calibration Services

When your instrument is due for calibration, contact your local Agilent Service

Center. The U3402A is supported on automated calibration systems at Agilent service centres only.

Calibration Interval

A one- year interval is adequate for most applications. Accuracy specifications are warranted only if adjustment is made at regular calibration intervals.

Accuracy specifications are not warranted beyond the one- year calibration interval. Agilent does not recommend extending calibration intervals beyond two years for any application. When an adjustment is required, contact your local Agilent Service Center.


Performance Test 4

Recommended Test Equipment

The test equipments recommended for the performance verification procedures are listed below. If the exact instrument is not available, substitute calibration standards of equivalent accuracy.

A suggested alternate method would be to use the Agilent 3458A 8½ - digit digital multimeter to measure less accurate yet stable sources. The output value measured from the source can be entered into the instrument as the target calibration value.

Table 4-1 Recommended test equipments

Application

Zero calibration

DC voltage

DC current

Resistance

AC voltage

AC current

Frequency

Diode

Recommended equipment Recommended accuracy requirements

Shorting plug — Dual banana plug with copper wire short between the two terminals

Fluke 5520A

Fluke 5520A

Fluke 5520A

Fluke 5520A

Fluke 5520A

Fluke 5520A

Fluke 5520A

—

<1/5 instrument 1 year spec









Test Considerations

For optimum performance, all procedures should comply with the following recommendations:

• Ensure that the calibration ambient temperature is stable and between

18 °C and 28 °C. Ideally the calibration should be performed at 23 °C ±1 °C.

• Ensure ambient relative humidity is less than 80%.

• Allow a one- hour warm- up period with a shorting plug connected to the Hi and Lo input terminals.

• Use shielded twisted pair PTFE- insulated cables to reduce settling and noise errors. Keep the input cables as short as possible.

N O T E

Please ensure that the calibration standards and test procedures used do not introduce additional errors. Ideally, the standards used to verify and adjust the instrument should be an order of magnitude more accurate than each instrument range full-scale error specification.



Performance Verification Test Overview

Performance verification test is an extensive set of tests that are recommended as an acceptance test when you first received the instrument .

Use the performance verification test to verify the measurement performance of the instrument. The performance verification test uses the instrument's specifications listed in

Chapter 6 , “Specifications and Characteristics”.

N O T E

Performance Verification Test

The performance verification test is recommended as acceptance tests when you first received the instrument. The acceptance test results should be compared against the one- year test limits. After acceptance, you should repeat the performance verification tests at every calibration interval.

If the instrument fails performance verification, adjustment or repair is required. Contact your local Agilent Service Center for details.

Make sure you have read

“Test Considerations” on page 64 before doing the performance

verification test.

This test checks the full- scale reading accuracy of the instrument.

DC Voltage Verification Test

1 Connect the calibrator to the front panel Hi and Lo input terminals.

2 Select each function and range in the order shown in

Table 4- 2 . Provide the input shown in Table 4- 2 .

3 Make a measurement and observe the result. Compare measurement results

to the appropriate test limits shown in the Table 4- 2

. (Be certain to allow for appropriate source settling when using the Fluke 5520A.)



C A U T I O N

Table 4-2 DC voltage verification test

Function Reading rate Input

DC voltage Slow

Medium

Slow

Medium

0.000 V

0.00000 V

0.0000 V

0.000 V

0.00 V

0.00 V

0.0000 V

0.000 V

0.00 V

0.0 V

100.000 mV

1.00000 V

10.0000 V

100.000 V

1000.00 V

360.00 mV

3.6000 V

36.000 V

360.00 V

1000.0 V

Range

120 mV

1.2 V

12 V

120 V

1000 V

400 mV

4 V

40 V

400 V

1000 V

120 mV

1.2 V

12 V

120 V

1000 V

400 mV

4 V

40 V

400 V

1000 V

±0.5V

±0.02 mV

±0.17 mV

±1.7 mV

±17 mV

±170 mV

±90 µV

±900 µV

±9 mV

±90 mV

±0.6 V

Error from nominal one year

±8 µV

±50 µV

±0.5 mV

±5 mV

±50 mV

±50 µV

±500 µV

±5 mV

±50 mV

Set the calibrator output to 0 V before disconnecting it from the multimeter input terminals.



DC Current Verification Test

1 Connect the calibrator to the front panel Hi and Lo input connectors.



3 Make a measurement and observe the result. Compare measurement results to the appropriate test limits shown in

Table 4- 3


Table 4-3 DC current verification test


DC current

Slow

Medium

Slow

Medium

0.0000 mA

0.000 mA

0.00 mA

0.0000 A

0.000 mA

0.00 mA

0.0 mA

0.000 A

10.0000 mA

100.000 mA

1000.00 mA

10.0000 A

36.000 mA

100.00 mA

1000.0 mA

10.000 A

Range

12 mA

120 mA

1200 mA

12 A

40 mA

120 mA

1200 mA

12 A

12 mA

120 mA

1200 mA

12 A

40 mA

120 mA

1200 mA

12 A ±3 mA

±6.5 µA

±55 µA

±2.05 mA

±20.5 mA

±42 µA

±0.13 mA

±2.3 mA

±23 mA


±1.5 µA

±5 µA

±50 µA

±0.5 mA

±6 µA

±30 µA

±0.3 mA

C A U T I O N

Connect calibrator to multimeter’s A and Lo terminals before applying 10 A.



68

Resistance Verification Test

Configuration: 2- wire

W

1 Select the resistance function.

2 Select each range in the order shown in

Table 4- 4 . Provide the resistance

value indicated. Compare measurement results to the appropriate test limits shown in

Table 4- 4

. (Be certain to allow for appropriate source settling.)

Table 4-4 2-wire

W verification test


2-wire

W

Slow

Medium

Slow

0.000

W

0.00000

W

0.0000

W

0.000

W

0.00000

W

0.0000

W

0.000

W

0.00

W

0.0000

W

0.000

W

0.00

W

0.0000

W

0.000

W

0.00

W

100.000

W

1.00000 k

W

10.0000 k

W

100.000 k

W

1.00000 M

W

10.0000 M

W

100.000 M

W

Range

120

W

1.2 k

W

12 k

W

120 k

W

1.2 M

W

12 M

W

120 M

W

400

W

4 k

W

40 k

W

400 k

W

4 M

W

40 M

W

300 M

W

120

W

1.2 k

W

12 k

W

120 k

W

1.2 M

W

12 M

W

120 M

W

±0.3

W

[1]

±3

W

[1]

±30

W

±0.3 k

W

±3 k

W

±50 k

W

±108 m

W

[1]

±0.85

W

[1]

±6.5

W

[1]

±65

W

±0.65 k

W

±30.5 k

W

±3.008 M

W


±8 m

W

[1]

±50 m

W

[1]

±0.5

W

[1]

±5

W

±50

W

±0.5 k

W

±8 k

W

±50 m

W

[1]




W verification test

Function Reading rate Input Range Error from nominal one year

2-wire

W

Medium 360.00

W

3.6000 k

36.000 k

W

W

400

4 k

W

40 k

W

W

±0.41

W

[1]

±3.2

W

[1]

±25

W

[1]

360.00 k

W

3.6000 M

W

20.000 M

W

400 k

4 M

W

40 M

W

W

±250

±5.7 k

W

±303 k

W

W

200.00 M

W

300 M

W

±10.05 M

W

Notes:

1 Specifications are for 2-wire ohms function using the Rel operation enabled to eliminate lead resistance.

Configuration: 4- wire

W

1 Select the resistance function.


Table 4- 5 . Provide the resistance

value indicated. Compare measurement results to the appropriate test limits shown in

Table 4- 5



W verification test


4-wire

W

Slow 0.000

W

0.00000

W

0.0000

W

0.000

W

0.00000

W

0.0000

W

0.000

W

Range

120

W

1.2 k

W

12 k

W

120 k

W

1.2 M

W

12 M

W

120 M

W


±8 m

W

[1]

±50 m

W

[1]

±0.5

W

±5

W

±50

W

±0.5 k

W

±8 k

W




W verification test

Function Reading rate Input Range Error from nominal one year

4-wire

W

Medium

Slow

Medium

0.00

0.00

W

0.0000

0.000

0.00

W

0.000

W

W

W

1.00000 M

360.00

W

0.0000

W

100.000

W

W

1.00000 k

10.0000 k

100.000 k

W

W

W

3.6000 k

W

36.000 k

W

360.00 k

W

3.6000 M

W

20.000 M

W

200.00 M

W

W

10.0000 M

W

100.000 M

W

400

4 k

W

40 k

400 k

W

4 M

W

40 M

300 M

120

1.2 k

12 k

4 k

W

W

W

W

W

W

120 k

1.2 M

4 M

W

W

W

12 M

W

120 M

W

400

W

W

40 k

W

400 k

W

40 M

W

W

300 M

W

±50 m

W

[1]

±0.3

W

±3

W

±30

W

±0.3 k

W

±3 k

W

±50 k

W

±58 m

W

[1]

±0.55

W

[1]

±5.5

W

±55

W

±0.55 k

W

±30.5 k

W

±3.008 M

W

±0.23

W

[1]

±2.1

W

±21

W

±0.21 k

±5.7 k

W

W

±0.303 k

W

±10.05 M

W

[1]

Specifications are for 4-wire ohms function using the Rel operation enabled to eliminate lead resistance.



Diode Verification Test

Configuration: Diode

1 Connect the calibrator to the front panel Hi and Lo input terminals.



3 Make a measurement and observe the result. Compare measurement results to the appropriate test limits shown in

Table 4- 6


Table 4-6 Diode verification test

Function Reading rate Voltage

Diode

Slow

Medium

0.50000 V

1.00000 V

0.5000 V

2.0000 V

Range

1.2 V

1.2 V

2.5 V

2.5 V


±0.11 mV

±0.17 mV

±0.6 mV

±0.7 mV

Frequency Verification Test

Configuration: Frequency

1 Select the frequency function.

2 Select each range in the order shown in Table 4- 7

. Provide the input voltage and frequency indicated. Compare measurement results to the appropriate test limits shown in

Table 4- 7


Table 4-7 Frequency verification test

Function Voltage

Frequency

Reading rate

Slow 1 V

Input frequency

1000.00 Hz

Range

1200 Hz


±0.08 Hz



72

AC Voltage Verification Test

Configuration: AC volts

1 Select the AC voltage function.


Table 4- 8 . Provide the indicated

input voltage and frequency. Compare measurement results to the

appropriate test limits shown in Table 4- 8 . (Be certain to allow for

appropriate source settling.)

Table 4-8 AC volts verification test

V RMS Function Reading rate

AC voltage

Slow

Medium

12.000 mV

100.000 mV

0.12000 V

1.00000 V

1.2000 V

10.0000 V

12.000 V

100.000 V

120.00 V

750.00 V

40.00 mV

360.00 mV

0.4000 V

3.6000 V

4.000 V

36.000 V

40.00 V

360.00 V

120.0 V

750.0 V

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

Input frequency

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

Range

750 V

750 V

400 mV

400 mV

4 V

4 V

40 V

40 V

120 mV

120 mV

1.2 V

1.2 V

12 V

12 V

120 V

120 V

400 V

400 V

750 V

750 V


±0.124 mV

±0.3 mV

±1.24 mV

±3 mV

±12.4 mV

±30 mV

±124 mV

±0.3 V

±1.24 V

±2.5 V

±0.48 mV

±1.12 mV

±4.8 mV

±11.2 mV

±48 mV

±112 mV

±480 mV

±1.12 V

±4.2 V

±5.5 V

C A U T I O N

Set the calibrator output to 0 V before disconnecting it from the multimeter input terminals.



AC Current Verification Test

Configuration: AC current

1 Select the AC current function.


Table 4- 9 . Provide the input

current and frequency indicated. Compare measurement results to the

appropriate test limits shown in Table 4- 9 . (Be certain to allow for

appropriate source settling.)

Table 4-9 AC current verification test

Current Function Reading rate

AC current

Slow

Medium

1.2000 mA

10.0000 mA

12.000 mA

100.000 mA

120.00 mA

1000.00 mA

1.2000 A

10.000 A

4.000 mA

36.000 mA

12.00 mA

100.00 mA

120.0 mA

1000.0 mA

1.200 A

10.000 A

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

Input frequency

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

1 kHz

Range

40 mA

40 mA

120 mA

120 mA

1200 mA

1200 mA

12 A

12 A

12 mA

12 mA

120 mA

120 mA

1200 mA

1200 mA

12 A

12 A ±110 mA

±60 µA

±0.22 mA

±0.18 mA

±0.62 mA

±1.8 mA

±6.2 mA

±24 mA

±112 mA


±16 µA

±60 µA

±0.16 mA

±0.6 mA

±1.6 mA

±6 mA

±22 mA

C A U T I O N

Connect calibrator to multimeter’s A and Lo terminals before applying 10 A.






5

Disassembly and Repair

Operating Checklist 76

Types of Service Available 77

Repackaging for Shipment 78

Cleaning 78

To Replace the Power Line Fuse 79

To Replace a Current Input Fuse 80

Electrostatic Discharge (ESD) Precautions 80

Mechanical Disassembly 81

Replaceable Parts 87

This chapter will help you troubleshoot a faulty multimeter.

It describes how to disassemble the multimeter, how to obtain repair services, and lists the replaceable parts.


75


Operating Checklist

Before returning your multimeter to Agilent for service or repair check the following items:

Is the multimeter inoperative?

q Verify the power line voltage setting.

q Verify the power line fuse is installed.

q Verify that the power cord is connected to the multimeter and to AC line power.

q Verify the front panel power switch is depressed.

See

page 79

.

Is the multimeter’s current input inoperative?

q Verify the current input fuse.


Disassembly and Repair 5

Types of Service Available

If your instrument fails during the warranty period, Agilent Technologies will repair or replace it under the terms of your warranty. After your warranty expires, Agilent offers repair services at competitive prices.

Extended Service Contracts

Many Agilent products are available with optional service contracts that extend the covered period after the standard warranty expires. If you have such a service contract and your instrument fails during the covered period,

Agilent Technologies will repair or replace it in accordance with the contract.

Obtaining Repair Service (Worldwide)

To obtain service for your instrument (in- warranty, under service contract, or post- warranty), contact your nearest Agilent Technologies Service Center.

They will arrange to have your instrument repaired or replaced, and can provide warranty or repair- cost information where applicable.

To obtain warranty, service, or technical support information you can contact

Agilent Technologies at one of the following telephone numbers:

In the United States: (800) 829–4444

In Europe: 31 20 547 2111

In Japan: 0120–421–345

Or use our Web link for information on contacting Agilent worldwide:

www.agilent.com/find/assist

Or contact your Agilent Technologies representative.

Before shipping your instrument, ask the Agilent Technologies Service Center to provide shipping instructions, including what components to ship. Agilent recommends that you retain the original shipping carton for use in such shipments.



Repackaging for Shipment

If the instrument is to be shipped to Agilent for service or repair, be sure to:

• Attach a tag to the unit identifying the owner and indicating the required service or repair. Include the model number and full serial number.

• Place the unit in its original container with appropriate packaging material for shipping.

• Secure the container with strong tape or metal bands.

• If the original shipping container is not available, place your instrument in a container which will ensure at least 4 inches of compressible packaging material around all sides for the instrument. Use static- free packaging materials to avoid additional damage to your instrument.

Agilent suggests that you always insure shipments.

Cleaning

Clean the outside of the multimeter with a soft, lint- free, slightly dampened cloth. Do not use detergent. Disassembly is not required or recommended for cleaning.



To Replace the Power Line Fuse

The power line fuse is located within the multimeter’s fuse- holder assembly on the rear panel. The multimeter is shipped from the factory with a power- line fuse installed (according to country of destination). Refer to

Table 5- 1 . If you determine that the fuse is faulty, replace it with one of the

same size and rating.

Table 5-1 Type of supplied fuse (according to country of destination)

Type of fuse (time-lag, low breaking fuse)

0.25A, 250V, 5x20 mm

0.125A, 250V, 5x20 mm

Input line voltage

100 V to 120 V

220 V to 240 V

Part number

A02-62-25592-3U

A02-62-25648-1U

1 Disconnect the power cord. Depress tab 1 and

2 and pull the fuse holder from rear panel.

2 Remove the line voltage selector from fuse holder assembly.

2

1

3 Rotate the line voltage selector and reinstall it back, so that the correct voltage appears in the fuse holder window.

4 Replace fuse holder assembly in rear panel.

100, 120, 220 (230), or 240 Vac



To Replace a Current Input Fuse

Both the mA and the A current input terminals are fuse protected. The fuse

for the mA input terminal is located on the front panel (see page 14 ). The fuse

is a 1.25 A, 500 V fuse (refer to Table 5- 2

). If you determine that the fuse is faulty, replace it with one of the same size and rating.

The fuse for the A current input terminal is located inside the multimeter (see

page 85

) and requires partial disassembly of the multimeter. The fuse is a

15 A, 600 V fast- acting fuse (refer to Table 5- 2

). If you determine that the fuse is faulty, replace it with one of the same size and rating.

Table 5-2 Type of current input fuse

Type of fuse

1.25 A, 500 V fuse

15 A, 600 V fast-acting fuse

Part number

2110-1394

2110-1396

Electrostatic Discharge (ESD) Precautions

Almost all electrical components can be damaged by electrostatic discharge

(ESD) during handling. Component damage can occur at electrostatic discharge voltages as low as 50 volts.

The following guidelines will help prevent ESD damage when servicing the instrument or any electronic device.

• Disassemble instruments only in a static- free work area.

• Use a conductive work area to reduce static charges.

• Use a conductive wrist strap to reduce static charge accumulation.

• Minimize handling.

• Keep replacement parts in original static- free packaging.

• Remove all plastic, foam, vinyl, paper, and other static- generating materials from the immediate work area.

• Use only anti–static solder suckers.



Mechanical Disassembly

For procedures in this manual, the following tools are required for disassembly:

• T15 Torx driver

• T20 Torx driver

• #2 Pozi–drive screw driver

WA R N I N G

Shock hazard. Only service–trained personnel who are aware of the hazards involved should remove the instrument covers. To avoid electrical shock and personal injury, make sure to disconnect the power cord from the multimeter before removing the covers. Some circuits are active and have power applied even when the power switch is turned off.

General Disassembly

1 Remove power and all cables from the multimeter.

2 Remove the carrying handle by rotating the handle upright and pulling it out from the sides of the multimeter.



3 Remove the multimeter’s bumpers. Pull from a corner and stretch the bumpers off the multimeter.

4 Remove the rear bezel. Loosen the two captive screws in the rear bezel and remove the rear bezel.



5 Remove the cover. Remove the screw at the bottom of the cover and slide the cover off the multimeter.

Front Panel Removal

1 Remove on/off switch push rod. Gently move the power switch push rod toward the front of the multimeter to disengage it from the switch. Be careful not to twist or bend the push rod.



2 Remove the screw holding the front panel.

3 Disconnect the two ribbon cable connectors from the front panel.



4 Disconnect the individual front panel wires shown below.

15 A current fuse

5 There is now enough play to allow the side of the front panel to be pried from the chassis and removed as an assembly.



Front Panel Disassembly

1 Remove the keyboard and display assembly. Remove the two screws holding the circuit board. Lift the keyboard and display assembly from the plastic housing.

a The rubber keypad can now be pulled from the plastic housing.



Replaceable Parts

This section contains information for ordering replacement parts for your instrument. You can find the instrument support part list at Agilent’s Test &

Measurement Parts Catalog at http://www.agilent.com/find/parts

This parts list includes a brief description of each part with applicable Agilent part number.

To order replaceable parts

You can order replaceable parts from Agilent using the Agilent part number.

Note that not all parts listed are available as field- replaceable parts.

To order replaceable parts from Agilent, do the following:

1 Contact your nearest Agilent Sales Office or Service Center.

2 Identify the parts by the Agilent part number shown in the support parts list.

3 Provide the instrument model number and serial number.






6

Specifications and Characteristics

DC Specifications 90

AC Specifications 93

True RMS AC Voltage (AC Coupling Mode) 93

True RMS AC Voltage (AC+DC Coupling Mode) 94

True RMS AC Current (AC Coupling Mode) 95

True RMS AC Current (AC+DC Coupling Mode) 96

Frequency 96

Decibel (dB) Calculation 97

Supplemental Measurement Specifications 98

Display update rate 98

Measurement Specifications 98

Reading rates 105

General Characteristics 107

To Calculate Total Measurement Error 109

Accuracy Specifications 110

Configuring for Highest Accuracy Measurements 111

This chapter describes the multimeter’s specifications and operating specifications


89


DC Specifications

Table 6-1 DC resolution, full scale reading, and accuracy [±(% of reading + count)]

Function

Voltage

Rate

Slow

Med

Fast

Range

120.000 mV

1.20000 V

12.0000 V

120.000 V

1000.00 V

400.00 mV

4.0000 V

40.000 V

400.00 V

1000.0 V

400.0 mV

4.000 V

40.00 V

400.0 V

1000 V

Resolution

0.001 mV

0.00001 V

0.0001 V

0.001 V

0.01 V

0.01 mV

0.0001 V

0.001 V

0.01 V

0.1 V

0.1 mV

0.001 V

0.01 V

0.1 V

1 V

Maximum reading

119.999

1.19999

11.9999

119.999

1000.00

[

3 ]

399.99

3.9999

39.999

399.99

1000.0

[

3 ]

399.9

3.999

39.99

399.9

1000

[

3 ]

Accuracy

(One year; 23ºC

± 5ºC)

±0.012% + 8

[ 2

]

±0.012% + 5

±0.012% + 5

±0.012% + 5

±0.012% + 5

±0.012% + 5

±0.012% + 5

±0.012% + 5

±0.012% + 5

±0.012% + 5

±0.012% + 2

±0.012% + 2

±0.012% + 2

±0.012% + 2

±0.012% + 2

Typical input impedance

[ 1 ]

10.0 M

W

10.0 M

W

11.1 M

W

10.1 M

W

10.0 M

W

10.0 M

W

11.1 M

W

10.1 M

W

10.0 M

W

10.0 M

W

10.0 M

W

11.1 M

W

10.1 M

W

10.0 M

W

10.0 M

W

Burden voltage

[

4 ]

—

—

—


Specifications and Characteristics 6

Table 6-1 DC resolution, full scale reading, and accuracy [±(% of reading + count)] (continued)

Function

Current

Diode/

Continuity

Resistance

/

Continuity

(2-wire)

Rate Range

Slow

Med

Fast

12.0000 mA

120.000 mA

1200.00 mA

12.0000 A

40.000 mA

120.00 mA

1200.0 mA

12.000 A

40.00 mA

120.0 mA

1200 mA

12.00 A

Slow

Med

—

—

Fast —

Slow 120.000

W

Med 400.00

W

Fast 400.0

W

Resolution

0.0001 mA

0.001 mA

0.01 mA

0.0001A

0.001 mA

0.01 mA

0.1 mA

0.001 A

0.01 mA

0.1 mA

1 mA

0.01 A

0.00001 V

0.0001 V

0.001 V

0.001

W

0.01

W

0.1

W

Maximum reading

11.9999

119.999

1199.99

11.9999

39.999

119.99

1199.9

11.999

39.99

119.9

1199

11.99

1.19999 V 0.012% + 5

2.4999 V 0.012% + 5

2.499 V

119.999

399.99

399.9

0.012% + 2

0.1% + 8

[ 5 ]

0.1% + 5

[ 5 ]

0.1% + 2

[ 5 ]

Accuracy

(One year; 23ºC

± 5ºC)

0.05% + 15

[

2

]

0.05% + 5

0.2% + 5

0.2% + 5

Typical input impedance

[ 1 ]

—

0.1% + 6

0.1% + 3

0.2% + 3

0.2% + 3

0.1% + 2

0.1% + 2

0.2% + 2

0.2% + 2

—

—

—

—

—

—

—

—

Burden voltage

[

4 ]

< 0.15 V

< 1.5 V

< 0.3 V

< 0.6 V

< 0.5 V

< 1.5 V

< 0.3 V

< 0.6 V

< 0.5 V

< 1.5 V

< 0.3 V

< 0.6 V

—

—

—

—

—

—



Table 6-1 DC resolution, full scale reading, and accuracy [±(% of reading + count)] (continued)

Function

Resistance

Rate

Slow

Med

Fast

Range

[

6 ]

120.000

W

1.20000 k

W

12.0000 k

W

120.000 k

W

1.20000 M

W

12.0000 M

W

120.000 M

W

400.00

W

4.0000 k

W

40.000 k

W

400.00 k

W

4.0000 M

W

40.000 M

W

300.00 M

W

400.0

W

4.000 k

W

40.00 k

W

400.0 k

W

4.000 M

W

40.00 M

W

300.0 M

W

Resolution

0.001

0.00001 k

0.0001 k

0.001 k

W

W

0.00001 M

0.0001 M

0.001 M

0.01

W

W

0.0001 k

0.001 k

0.01 k

0.001 M

0.01 M

0.1

W

W

W

W

W

0.001 k

W

0.01 k

W

0.1 k

W

W

W

0.001 M

W

0.01 M

W

0.1 M

W

W

0.0001 M

W

W

W

Maximum reading

119.999

1.19999

11.9999

119.999

1.19999

11.9999

119.999

399.99

3.9999

39.999

399.99

3.9999

39.999

299.99

399.9

3.999

39.99

399.9

3.999

39.99

299.9

Current source

0.5 mA

0.5 mA

100 µA

10 µA

1 µA

100 nA

10 nA

0.5 mA

100 µA

50 µA

5 µA

500 nA

50 nA

10 nA

0.5 mA

100 µA

50 µA

5 µA

500 nA

50 nA

10 nA

Accuracy (One year; 23ºC ±

2-wire

0.1% + 8

[ 2

]

0.08% + 5

[ 2

]

0.06% + 5

[ 2

]

0.06% + 5

0.06% + 5

0.3% + 5

3.0% + 8

0.1% + 5

[ 2

]

0.08% + 3

[ 2

]

0.06% + 3

0.06% + 3

0.15% + 3

1.5% + 3

5.0% + 5

0.1% + 2

0.08% + 2

0.06% + 2

0.06% + 2

0.15% + 2

1.5% + 2

5.0% + 2

[ 2

]

5ºC)

4-wire

0.05% + 8

0.05% + 5

0.05% + 5

0.05% + 5

0.05% + 5

0.3% + 5

3.0% + 8

0.05% + 5

0.05% + 3

0.05% + 3

0.05% + 3

0.15% + 3

1.5% + 3

5.0% + 5

0.05% + 2

0.05% + 2

0.05% + 2

0.05% + 2

0.15% + 2

1.5% + 2

5.0% + 2

[ 2

]

[ 2

]

[ 2

]

Notes:

1 Input impedance is in parallel with capacitance < 120 pF.

2 Use Rel operation.

3 In VDC 1000 V range, 5% over-range (1050 VDC) is readable.

4 Typical at full scale reading and voltage across the input terminals.

5 Use Rel operation. If Rel operation is not used, add 0.2

W additional error.

6 In order to eliminate the noise interference, which might be induced to the test leads, it is recommended to use a shielded test cable for measuring resistance above 100 k

W



AC Specifications

True RMS AC Voltage (AC Coupling Mode)

Table 6-2 AC voltage resolution, full scale reading, and accuracy [± (% of reading + count)]

Rate Range Resolution

Maximum reading

Slow

Med

120.000 mV

1.20000 V

12.0000 V

120.000 V

750.00 V

400.00 mV

4.0000 V

40.000 V

400.00 V

750.0 V

0.001 mV

0.00001 V

0.0001 V

0.001 V

0.01 V

0.01 mV

0.0001 V

0.001 V

0.01 V

0.1 V

Fast

400.0 mV

4.000 V

40.00 V

400.0 V

0.1 mV

0.001 V

0.01 V

0.1 V

399.9

3.999

39.99

399.9

750 V 1 V 750

Notes:

1 Specified accuracy at input > 5% of full scale.

2 For input < 200 V RMS.


4 In VAC 750 V range, 787.5 V RMS is readable.

119.999

1.19999

11.9999

119.999

750.00

[

4 ]

399.99

3.9999

39.999

399.99

750.0

20 Hz to 45 Hz

Accuracy (One year; 23ºC ± 5ºC)

[ 1

]

45 Hz to 10kHz

10 kHz to

30 kHz

1% + 100

1% + 100

1% + 100

1% + 100

1% + 100

[ 2

]

1% + 40

1% + 40

1% + 40

1% + 40

[ 2

]

1% + 40

1% + 5

1% + 5

1% + 5

[ 2

]

1% + 5

[

2 ]

1% + 5

[

2 ]

0.2% + 100

0.2% + 100

0.2% + 100

0.2% + 100

0.2% + 100

0.2% + 40

0.2% + 40

0.2% + 40

0.2% + 40

0.2% + 40

0.2% + 5

0.2% + 5

0.2% + 5

0.2% + 5

0.2% + 5

1.5% + 300

1% + 100

1% + 100

1% + 100

1% + 100

1.5% + 80

1% + 40

1% + 40

1% + 40

1% + 40

1.5% + 10

1% + 5

1% + 5

1% + 5

1% + 5

30 kHz to

100 kHz

[ 2

]

5% + 300

3% + 200

3% + 200

3% + 200

3% + 200

[ 3

]

5% +120

3% + 80

3% + 80

3% + 80

3% + 80

[ 3

]

5% + 15

3% + 10

3% + 10

3% + 10

3% + 10

[ 3

]



True RMS AC Voltage (AC+DC Coupling Mode)

Table 6-3 AC voltage ac+dc

resolution, full scale reading, and accuracy [± (% of reading + count)]

Rate Range

[

1 ]

Resolution

Maximum reading

Slow

Med

120.000 mV

1.20000 V

12.0000 V

120.000 V

750.00 V

400.00 mV

4.0000 V

40.000 V

400.00 V

750.0 V

0.001 mV

0.00001 V

0.0001 V

0.001 V

0.01 V

0.01 mV

0.0001 V

0.001 V

0.01 V

0.1 V

119.999

1.19999

11.9999

119.999

750.00

[ 3

]

399.99

3.9999

39.999

399.99

750.0

Fast

400.0 mV

4.000 V

40.00 V

400.0 V

0.1 mV

0.001 V

0.01 V

0.1 V

399.9

3.999

39.99

399.9

750 V 1 V 750

Notes:

1 VDC and VAC are automatically set at the same range.


3 In VAC 750 V range, 787.5 V RMS is readable.



[

2 ]

45 Hz to 10kHz 10 kHz to 30 kHz 30 kHz to 100 kHz

0.2% + 100

0.2% + 100

0.2% + 100

0.2% + 100

0.2% + 100

0.2% + 45

0.2% + 43

0.2% + 43

0.2% + 43

0.2% + 43

0.2% + 7

0.2% + 7

0.2% + 7

0.2% + 7

0.2% + 7

1.5% + 300

1% + 100

1% + 100

1% + 100

1% + 100

1.5% + 83

1% + 43

1% + 43

1% + 43

1% + 43

1.5% + 12

1% + 7

1% + 7

1% + 7

1% + 7

5% + 300

3% + 200

3% + 200

3% + 200

3% + 200

[ 4

]

5% + 125

3% + 83

3% + 83

3% + 83

3% + 83

[ 4

]

5% + 18

3% + 12

3% + 12

3% + 12

3% + 12

[ 4

]



True RMS AC Current (AC Coupling Mode)

Table 6-4 AC current resolution, full scale reading, burden voltage, and accuracy [± (% of reading + count)]


Maximum reading

Burden voltage

[

1 ]

Slow

12.0000 mA

120.000 mA

1200.00 mA

12.0000 A

0.0001 mA

0.001 mA

0.01 mA

0.0001A

11.9999

119.999

1199.99

11.9999

< 0.15 V

< 1.5 V

< 0.3 V

< 0.6 V

Med

40.000 mA

120.00 mA

1200.0 mA

12.000 A

0.001 mA

0.01 mA

0.1 mA

0.001 A

39.999

119.99

1199.9

11.999

< 0.5 V

< 1.5 V

< 0.3 V

< 0.6 V

Fast

40.00 mA

120.0 mA

1200 mA

12.00 A

0.01 mA

0.1 mA

1 mA

0.01 A

39.99

119.9

1199

11.99

< 0.5 V

< 1.5 V

< 0.3 V

< 0.6 V

Notes:




[

2 ]

20 Hz to 45 Hz 45 Hz to 2 kHz

2 kHz to 10 kHz

1.5% + 100

1.5% + 100

1.5% + 100

2% + 100 (<1.2 A)

0.5% + 100

0.5% + 100

0.5% + 100

1% + 100

2% + 200

2% + 200

2% + 200

–

1.5% + 40

1.5% + 12

1.5% + 12

1.5% + 12 (<1.2 A)

1.5% + 5

1.5% + 2

1.5% + 2

2% + 2 (<1.2 A)

0.5% + 40

0.5% + 12

0.5% + 12

1% + 12

0.5% + 5

0.5% + 2

0.5% + 2

1% + 2

2% + 80

2% + 30

2% + 30

–

2% + 10

2% + 5

2% + 5

–



True RMS AC Current (AC+DC Coupling Mode)

Table 6-5 AC current ac+dc

resolution, full scale reading, burden voltage, and accuracy [± (% of reading + count)]


Maximum reading

Burden voltage

Slow

Med

12.0000 mA

120.000 mA

1200.00 mA

12.0000 A

40.000 mA

120.00 mA

1200.0 mA

12.000 A

0.0001 mA

0.001 mA

0.01 mA

0.0001 A

0.001 mA

0.01 mA

0.1 mA

0.001 A

11.9999

119.999

1199.99

11.9999

39.999

119.99

1199.9

11.999

Fast

40.00 mA

120.0 mA

1200 mA

12.00 A

0.01 mA

0.1 mA

1 mA

0.01 A

39.99

119.9

1199

11.99

< 0.5 V

< 1.5 V

< 0.3 V

< 0.6 V

Notes:



< 0.15 V

< 1.5 V

< 0.3 V

< 0.6 V

< 0.5 V

< 1.5 V

< 0.3 V

< 0.6 V

[

1 ]

Accuracy (one year; 23ºC ± 5ºC)

[

2 ]

45 Hz to 2 kHz 2 kHz to 10 kHz

0.5% + 100

0.5% + 100

0.5% + 100

1% + 100

0.5% + 42

0.5% + 15

0.5% + 15

1% + 15

0.5% + 7

0.5% + 4

0.5% + 4

1% + 4

2% + 200

2% + 200

2% + 200

–

2% + 80

2% + 30

2% + 30

–

2% + 12

2% + 7

2% + 7

–

Frequency

Table 6-6 Frequency resolution and accuracy [± (% of reading + count)]

1200 Hz

12 kHz

120 kHz

5 Hz to 1200 Hz

10 Hz to 12 kHz

100 Hz to 120 kHz

0.01 Hz

0.0001 kHz

0.001 kHz

1 MHz 1 kHz to 1 MHz 0.0001 MHz

Notes:


Maximum reading

1199.99

11.9999

119.999

1.1999

Accuracy (One year;

23ºC ± 5ºC)

[

1 ]

0.005% + 3

0.005% + 2

0.005% + 2

0.005% + 2

Input sensitivity

(Sine wave)

40 mV RMS

40 mV RMS

40 mV RMS

0.5 V RMS



Decibel (dB) Calculation

Table 6-7 Range and accuracy (±dB)

Rate

Voltage range

[

1 ][ 2 ]

Input voltage dBm

[

3 ]

range at

600

W ref

Slow

Medium

120.000 mV

1.20000 V

12.0000 V

120.000 V

1000.00 VDC

750.00 VAC

400.00 mV

4.0000 V

40.000 V

400.00 V

1000.0 VDC

750.0 VAC

6 mV to 120 mV

120 mV to 1.2 V

1.2 V to 12 V

12 V to 120 V

120 V to 1000 V

120 V to 750 V

20 mV to 400 mV

400 mV to 4 V

4 V to 40 V

40 V to 400 V

400 V to 1000 V

400 V to 750 V

– 42.20 to – 16.20

– 16.20 to 3.80

3.80 to 23.80

23.80 to 43.80

43.80 to 62.22

43.80 to 59.72

– 31.76 to – 5.74

– 5.74 to 14.26

14.26 to 34.26

34.26 to 54.26

54.26 to 62.22

54.26 to 59.72

Fast

400.0 mV

4.000 V

40.00 V

400.0 V

20 mV to 400 mV

400 mV to 4 V

4 V to 40 V

40 V to 400 V

– 31.76 to – 5.74

– 5.74 to 14.26

14.26 to 34.26

34.26 to 54.26

1000 VDC

750 VAC

400 V to 1000 V

400 V to 750 V

54.26 to 62.22

54.26 to 59.72

Notes:

1 Autoranging is used when dBm operation is enabled.

2 In VAC 750 V range, 5% over-range is readable.

3 Reading displayed in dB when Rel operation is used.

4 For input voltage at frequency between 45 Hz to 1 kHz.

–

–

1.0

0.8

0.8

0.8

–

–

1.0

0.8

0.8

0.8


[ 1

]

20 Hz to 45 Hz 45 Hz to 10 kHz 10 kHz to 100 kHz

–

–

1.0

0.8

0.8

0.8

0.2

0.1

0.1

0.1

1.0

[ 4

]

1.0

[ 4

]

1.0

0.8

0.8

0.8

–

–

0.2

0.1

0.1

0.1

1.0

[ 4

]

1.0

[ 4

]

0.2

0.1

0.1

0.1

1.0

[ 4

]

1.0

[ 4

]

1.0

0.8

0.8

0.8

–

–

1.0

0.8

0.8

0.8

–

–



Supplemental Measurement Specifications

Display update rate

Table 6-8 Full scale display update rates

Display update rates Display counts

Slow

Medium

Fast

119,999

39,999

3,999

Measurement Specifications

Table 6-9 Supplemental measurement specifications

DC voltage

• Measurement method

•

Sigma Delta A-to-D converter

• Input resistance

•

10 M

W ± 2% range (typical)

• Maximum input voltage

•

1000 VDC or PEAK AC on all ranges

• Input protection

•

1000 V on all ranges

• Response time

•

Approximately 1.0 second when the displayed reading reaches 99.9% DC value of the tested input signal at the same range.



Table 6-9 Supplemental measurement specifications (continued)

DC current

• Shunt resistance

•

0.1

W to 10 W for 12 mA to 1.2 A ranges

•

0.01

W for 12 A range

• Maximum input and overload protection

•

mA input terminal: 1200 mADC or AC RMS. Protected with 1.25 A/500 V, IEC-127 sheet, FB fuse

•

12 A input terminal: 10 ADC or AC RMS continuous, or 12 ADC or AC RMS for 30 seconds maximum. Protected with 15 A/600 V, breaking capacity 10,000 A FB fuse

• Response time

•

Approximately 1.0 seconds when the displayed reading reaches 99.9% DC value of the tested input signal at the same range

AC voltage (True RMS AC Coupling Mode)


•

AC coupled true RMS—measure the AC component with up to 400 VDC bias on any range

• Crest factor

•

Maximum 3:0 at full scale

• Input impedance

•

1 M

W ± 2% in parallel with <120 pF on all ranges


•

750 V RMS /1100 V PEAK

•

2x10

7

V-Hz product on any range, normal mode input

•

1x10

6

V-Hz product on any range, common mode input

• Overload ranging

•

Will select higher range if peak input overload is detected during autorange. Overload is reported in manual ranging


•

750 V RMS on all ranges




• Response time

•

Approximately 1.5 seconds when the displayed reading reaches 99.9% AC RMS value of the tested input signal at the same range.

AC voltage (True RMS AC + DC Coupling Mode)


•

AC+DC coupled true RMS—measure the AC component with up to 400 VDC bias on any range

• Crest factor

•


• Input impedance

•

1 M

W ± 2% in parallel with <120 pF of all ranges


•


•

2x10

7


•

1x10

6


• Overload ranging

•

Will select higher range if peak input overload is detected during autorange. Overload is reported in manual ranging


•


• Response time

•

Approximately 2.5 seconds when the displayed reading reaches 99.9% AC RMS value of the tested input signal at the same range




AC current (True RMS, AC Coupling Mode)


•

DC coupled to the fuse and current shunt, AC coupled true RMS measurement (measures the

AC component only)

• Crest factor

•


• Shunt resistance

•

0.1

W to 10 W for 10 mA to 1.2 A ranges

•

0.01

W for 12 A range


•

mA input terminal: 1200 mADC or AC RMS. Protected with 1.25 A/500 V, IEC-127 sheet, FH fuse

•

12 A input terminal: 10 ADC or AC RMS continuous, or 12 ADC or AC RMS for 30 seconds maximum. Protected with 15 A/600 V, breaking capacity 10,000 A FH fuse.

• Response time

•


AC current (True RMS, AC Coupling Mode)


•

AC+DC coupled to the fuse and current shunt, AC+DC coupled true RMS measurement

(measures the AC component only)

• Crest factor

•


• Measurement range

•

VDC and VAC are automatically set at the same range.

• Response time

•





Resistance (2-wire

W and 4-wire W)


•

2-wire Ohms or 4-wire Ohms

• Open-circuit voltage

•

Limited to < +5 VDC

• Zeroing error

•

0.05

W or less (excluding test lead resistance) in each range when Rel operation is used


•

500 V on all ranges

• Response time

•

Approximately 1.5 seconds for 12 M

W and ranges below 12 MW

•

Approximately 5 seconds for 40 M

W

•


W

•


W

Diode/continuity


•

0.83 mA ±0.2% constant current source, open-circuit voltage limited to < 5 V

• Test current

•

Approximately 0.5 mADC


•

Limited to < +5 VDC

• Continuity threshold

•

10

W fixed

• Continuity level

•

Approximately < +50 mVDC




• Audible tone

•

Continuous beep for continuity and single tone for normal forward-biased diode or semiconductor junction


•


Resistance/continuity (2-wire

W)


•

2-wire Ohms

• Test current

•

Approximately 0.5 mADC


•

Limited to < +5 VDC

• Audible tone

•

Continuous beep for continuity and single tone for normal forward-biased diode or semiconductor junction

• Zeroing error

•

0.05

W or less (excluding test lead resistances) in each range when Rel operation is used


•


Frequency


•

Reciprocal counting technique. AC coupled input using AC voltage function

• Crest factor

•


• Signal level

•

10% of range to full scale input on all ranges

•

Auto or manual range selection




• Gate time

•

0.1 second or 1 period of the input signal, whichever is longer

• Input impedance

•

1 M

W ± 2% in parallel with <120 pF of all ranges


•


•

2x10

7


•

1x10

6



•


• Response time

•

Approximately 1.5 seconds when the displayed reading reaches 99.9% of frequency value

Measurement Noise Rejection

• Common mode reject ratio (CMRR) for 1 k

W unbalanced LO lead

•

50/60 Hz ± 0.1%: DC > 90 dB

• Normal mode rejection ratio (NMRR)

•

50/60 Hz ± 0.1%: > 50 dB

dBm Operation

• 0 dBm

•

1 mW at 600

W reference impedance

• Resolution

•

Slow: 0.01 dB for all ranges

•

Medium: 0.01 dB for all ranges

•

Fast: 0.1 dB for all ranges

• Reference impedance

[1]

•

2

W

[2]

, 4

W

[2]

, 8

W

[2]

, 16

W

[2]

, 50

W, 75 W, 93 W, 110 W, 124 W, 125 W, 135 W, 150 W, 250 W, 300

W, 500 W, 600 W, 800 W, 900 W, 1000 W, 1200 W, or 8000 W




Math Operation

• dBm, Rel, MinMax, Comp, Hold

I/O Interface

• RS232

[3]

Notes:

1 Reference impedance is displayed on the secondary display.

2 Reading displayed in watts (Audio power).

3 For calibration use only.

N O T E

When V ac+dc

measurement function is selected, the VDC input impedance is parallel with an AC-couples 1.1 M

W divider.

Reading rates

Table 6-10 Reading rates for single display (readings/second (approx))

Measurement functions

DCV

DCA

Diode

ACV

ACA

2-wire

W

4-wire

W, 4MW/1.2MW range and below

4-wire

W, 12MW range and above

Frequency (5Hz)

ACV + DCV

ACA + DCA

Slow

2.2

2.2

2.2

2.2

2.2

2.2

0.7

1.5

1.0

0.8

0.5

Medium

5.5

5.5

5.5

5.5

5.5

5.5

0.9

1.8

1.7

1.1

0.7

Fast

22.0

22.0

22.0

22.0

22.0

22.0

1.0

2.0

2.3

1.6

0.9



Table 6-11 Reading rates for the dual display (readings/second (approx))

Measurement functions Slow Medium Fast

DCV / ACV

0.8

1.1

1.6

DCA / ACA

0.5

0.7

0.9

DCV / DCA

0.7

1.1

1.6

DCV / ACA

0.1

0.4

0.5

ACV / ACA

0.1

0.4

0.5

ACV / DCA

0.8

1.1

1.6

ACV / Frequency

[

1 ]

1.0

1.7

2.3

ACA / Frequency

[

1

]

1.2

1.7

2.5

ACV + DCV / DCV

0.7

1.1

1.6

ACA + DCA / DCV

0.1

0.3

0.4

ACA + DCA / ACV

0.1

0.3

0.4

ACA + DCA / DCA

0.5

0.7

0.9

dBm (ACV) / Reference

2.2

5.5

22.0

dBm (ACV) / ACV

2.2

4.3

11.0

dBm (ACV) / DCV

0.8

1.1

1.8

dBm (ACV) / Frequency

[

1 ]

1.0

1.7

2.4

Notes:

1 This reading rate depends on the frequency of the signal, the table itself shows the worst possible case.

2 This table shows the typical combinations of measurement functions for the dual display.



General Characteristics

Table 6-12 General characteristics

Power Supply

•

100 V/120 V/220 V/240 V ± 10%

•

AC line frequency 50 Hz to 60Hz

Power Consumption

•

16 VA maximum

Input Power Option

•

Manual ranging (100 VAC to 240 VAC ±10%)

Fuse

• Terminal:

•

1.25 A, 500 V FB fuse

•

15 A, 600 V FB fuse (internal)

• Power line (according to country of destination):

•

0.25 A, 250 V SB fuse OR

•

0125 A, 250 V SB fuse

Display

•

Highly visible vacuum fluorescent display (VFD)

Operating Environment

•

Operating temperature from 0 °C to + 50 °C

•

Relative humidity up to 80% at 28 °C RH (non-condensing)

•

Altitude up to 2000 meters

•

Pollution degree 2

•

For indoor use only



Table 6-12 General characteristics

Storage Compliance

•

– 20 °C to 60 °C

•

Relative humidity at 5% to 90% RH (non-condensing)

Safety Compliance

•

IEC 61010-1:2001/EN61010-1:2001 (2nd Edition)

•

Canada: CAN/CSA-C22.2 No. 61010-1-04

•

USA: ANSI/UL 61010-1:2004

EMC Compliance

•

IEC 61326-1:2005/EN61326-1:2006

•

Canada: ICES/NMB-001:2004

•

Australia/New Zealand: AS/NZS CISPR11:2004

Shock and Vibration

•

Tested to IEC/EN 60068-2

I/O Connector

•

Output connectors

I/O Interface

•

RS232 (For calibration use only)

Dimension (HxWxD)

•

226.00 × 105.00 × 305.00 mm (with bumpers)

•

215.00 × 87.00 × 282.00 mm (without bumpers)

Weight

•

3.44 kg (with bumpers)

Warm Up Time

•

30 minutes

Calibration Cycle

•

1 year

Warranty

•

3 years

•

3 months for standard shipped accessories



To Calculate Total Measurement Error

The multimeter's accuracy specifications are expressed in the form of:

(% of reading + count)

In addition to the reading error and count error, you may need to add additional errors for certain operating conditions. Check the list below to make sure you include all measurement errors for a given function. Also, make sure you apply the conditions as described in the footnotes on the specification pages.

• If you are operating the multimeter outside the temperature range specified, apply an additional temperature coefficient error.

• For AC voltage and AC current measurements, you may need to apply an additional low frequency error or crest factor error.



Accuracy Specifications

Transfer Accuracy

Transfer accuracy refers to the error introduced by the multimeter due to noise and short – term drift. This error becomes apparent when comparing two nearly equal signals for the purpose of "transferring" the known accuracy of one device to the other.

One-Year Accuracy

These long

– term accuracy specifications are valid at the calibration temperature (T cal

) ± 5 °C temperature range. These specifications include the initial calibration errors plus the multimeter's long

– term drift errors.

Temperature Coefficients

Accuracy is usually specified at the calibration temperature (T cal

) ± 5 °C temperature range. This is a common temperature range for many operating environments. You must add additional temperature coefficient errors to the accuracy specification if you are operating the multimeter at 0 °C to 18 °C and

28 °C to 50 °C temperature range (the specification is per °C).

Temperature Coefficient = add ± 0.15 x [the applicable accuracy)/°C]



Configuring for Highest Accuracy Measurements

The measurement configurations shown below assume that the multimeter is in its power – on or reset state. It is also assumed that auto–ranging is enabled to ensure proper full scale range selection.

• Select 5½ digits.

• Null the test lead resistance for 2–wire ohms measurements, and to remove any interconnection offset for DC voltage measurements.




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Or visit Agilent worlwide Web at: www.agilent.com/find/assist

Product specifications and descriptions in this document are subject to change without notice.

Always refer to the Agilent Web site for the latest revision.

©

Agilent Technologies, Inc. 2009–2013

Printed in Malaysia

Fifth Edition, May 21, 2013

U3402-90001


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