Agilent 3458A Users Guide

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Agilent Technologies

3458A Multimeter

User’s Guide

Manual Part Number: 03458-90014

Printed in U.S.A

AGILENT TECHNOLOGIES WARRANTY STATEMENT

AGILENT PRODUCT: 3458A Multimeter DURATION OF WARRANTY: 1 year

1. Agilent Technologies warrants Agilent hardware, accessories and supplies against defects in materials and workmanship for the period specified above. If Agilent receives notice of such defects during the warranty period, Agilent will, at its option, either repair or replace products which prove to be defective. Replacement products may be either new or like-new.

2. Agilent warrants that Agilent software will not fail to execute its programming instructions, for the period specified above, due to defects in material and workmanship when properly installed and used. If Agilent receives notice of such defects during the warranty period, Agilent will replace software media which does not execute its programming instructions due to such defects.

3. Agilent does not warrant that the operation of Agilent products will be interrupted or error free. If Agilent is unable, within a reasonable time, to repair or replace any product to a condition as warranted, customer will be entitled to a refund of the purchase price upon prompt return of the product.

4. Agilent products may contain remanufactured parts equivalent to new in performance or may have been subject to incidental use.

5. The warranty period begins on the date of delivery or on the date of installation if installed by Agilent. If customer schedules or delays Agilent installation more than 30 days after delivery, warranty begins on the 31st day from delivery.

6. Warranty does not apply to defects resulting from (a) improper or inadequate maintenance or calibration, (b) software, interfacing, parts or supplies not supplied by Agilent, (c) unauthorized modification or misuse, (d) operation outside of the published environmental specifications for the product, or (e) improper site preparation or maintenance.

7. TO THE EXTENT ALLOWED BY LOCAL LAW, THE ABOVE WARRANTIES ARE EXCLUSIVE AND NO OTHER WARRANTY OR CONDITION, WHETHER WRITTEN OR ORAL, IS EXPRESSED OR IMPLIED AND AGILENT SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OR CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, AND FITNESS FOR A PARTICULAR PURPOSE.

8. Agilent will be liable for damage to tangible property per incident up to the greater of $300,000 or the actual amount paid for the product that is the subject of the claim, and for damages for bodily injury or death, to the extent that all such damages are determined by a court of competent jurisdiction to have been directly caused by a defective Agilent product.

9. TO THE EXTENT ALLOWED BY LOCAL LAW, THE REMEDIES IN THIS WARRANTY STATEMENT ARE CUSTOMER’S SOLE AND EXLUSIVE REMEDIES. EXCEPT AS INDICATED ABOVE, IN NO EVENT WILL AGILENT OR ITS SUPPLIERS BE LIABLE FOR LOSS OF DATA OR FOR DIRECT, SPECIAL, INCIDENTAL, CONSEQUENTIAL (INCLUDING LOST PROFIT OR DATA), OR OTHER DAMAGE, WHETHER BASED IN CONTRACT, TORT, OR OTHERWISE.

FOR CONSUMER TRANSACTIONS IN AUSTRALIA AND NEW ZEALAND: THE WARRANTY TERMS CONTAINED IN THIS STATEMENT, EXCEPT TO THE EXTENT LAWFULLY PERMITTED, DO NOT EXCLUDE, RESTRICT OR MODIFY AND ARE IN ADDITION TO THE MANDATORY STATUTORY RIGHTS APPLICABLE TO THE SALE OF THIS PRODUCT TO YOU.

U.S. Government Restricted Rights

The Software and Documentation have been developed entirely at private expense. They are delivered and licensed as "commercial computer software" as defined in DFARS 252.227- 7013 (Oct 1988), DFARS 252.211-7015 (May 1991) or DFARS 252.227-7014 (Jun

1995), as a "commercial item" as defined in FAR 2.101(a), or as "Restricted computer software" as defined in FAR 52.227-19 (Jun

1987)(or any equivalent agency regulation or contract clause), whichever is applicable. You have only those rights provided for such Software and Documentation by the applicable FAR or DFARS clause or the Agilent standard software agreement for the product involved.

3458A Multimeter User’s Guide

Edition 4

Documentation History

All Editions and Updates of this manual and their creation date are listed below. The first Edition of the manual is Edition 1. The Edition number increments by 1 whenever the manual is revised. Updates, which are issued between Editions, contain replacement pages to correct or add additional information to the current Edition of the manual. Whenever a new Edition is created, it will contain all of the Update information for the previous Edition. Each new Edition or Update also includes a revised copy of this documentation history page.

Edition 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . May, 1988

Update 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . February, 1992

Edition 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . October, 1992

Edition 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . February, 1994

Edition 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . December, 2000

Safety Symbols

Instruction manual symbol affixed to product. Indicates that the user must refer to the manual for specific WARNING or CAUTION information to avoid personal injury or damage to the product.

Indicates the field wiring terminal that must be connected to earth ground before operating the equipment — protects against electrical shock in case of fault.

Frame or chassis ground terminal—typ ically connects to the equipment's metal frame.

WARNING

CAUTION

Alternating current (AC)

Direct current (DC).

WARNING, RISK OF ELECTRIC SHOCK.

Calls attention to a procedure, practice, or condition that could cause bodily injury or death.

Calls attention to a procedure, practice, or condition that could possibly cause damage to equipment or permanent loss of data.

WARNINGS

The following general safety precautions must be observed during all phases of operation, service, and repair of this product. 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 product. Agilent Technologies assumes no liability for the customer's failure to comply with these requirements.

Ground the equipment: For Safety Class 1 equipment (equipment having a protective earth terminal), an uninterruptible safety earth ground must be provided from the mains power source to the product input wiring terminals or supplied power cable.

DO NOT operate the product in an explosive atmosphere or in the presence of flammable gases or fumes.

For continued protection against fire, replace the line fuse(s) only with fuse(s) of the same voltage and current rating and type. DO NOT

use repaired fuses or short-circuited fuse holders.

Keep away from live circuits: Operating personnel must not remove equipment covers or shields. Procedures involving the removal of covers or shields are for use by service-trained personnel only. Under certain conditions, dangerous voltages may exist even with the equipment switched off. To avoid dangerous electrical shock, DO NOT perform procedures involving cover or shield removal unless you are qualified to do so.

DO NOT operate damaged equipment: Whenever it is possible that the safety protection features built into this product have been impaired, either through physical damage, excessive moisture, or any other reason, REMOVE POWER and do not use the product until safe operation can be verified by service-trained personnel. If necessary, return the product to Agilent for service and repair to ensure that safety features are maintained.

DO NOT service or adjust alone: Do not attempt internal service or adjustment unless another person, capable of rendering first aid and resuscitation, is present.

DO NOT substitute parts or modify equipment: Because of the danger of introducing additional hazards, do not install substitute parts or perform any unauthorized modification to the product. Return the product to Agilent for service and repair to ensure that safety features are maintained.

Measuring high voltages is always hazardous: ALL multimeter input terminals (both front and rear) must be considered hazardous whenever inputs greater than 42V (dc or peak) are connected to ANY input terminal.

Permanent wiring of hazardous voltage or sources capable of delivering grater than 150 VA should be labeled, fused, or in some other way protected against accidental bridging or equipment failure.

DO NOT leave measurement terminals energized when not in use.

DO NOT use the front/rear switch to multiplex hazardous signals between the front and rear terminals of the multimeter.

DECLARATION OF CONFORMITY

According to ISO/IEC Guide 22 and CEN/CENELEC EN 45014

Manufacturer’s Name: Agilent Technologies, Incorporated Manufacturer’s Address:

815 14 Loveland, CO 80537 USA

Declares, that the product

Product Name: Multimeter Model Number: 3458A Product Options: This declaration covers all options of the above product(s).

Conforms with the following European Directives:

The product herewith complies with the requirements of the Low Voltage Directive 73/23/EEC and the EMC Directive 89/336/EEC (including 93/68/EEC) and carries the CE Marking accordingly

Conforms with the following product standards:

ST. S.W.

EMC Standard

IEC 61326-1:1997+A1:1998 / EN 61326-1:1997+A1:1998 CISPR 11:1990 / EN 55011:1991 IEC 61000-4-2:1995+A1:1998 / EN 61000-4-2:1995 IEC 61000-4-3:1995 / EN 61000-4-3:1995 IEC 61000-4-4:1995 / EN 61000-4-4:1995 IEC 61000-4-5:1995 / EN 61000-4-5:1995 IEC 61000-4-6:1996 / EN 61000-4-6:1996 IEC 61000-4-11:1994 / EN 61000-4-11:1994

Canada: ICES-001:1998 Australia/New Zealand: AS/NZS 2064.1

The product was tested in a typical configuration with Agilent Technologies test systems.

Safety

IEC 61010-1:1990+A1:1992+A2:1995 / EN 61010-1:1993+A2:1995 Canada: CSA C22.2 No. 1010.1:1992 UL 3111-1: 1994

8 March 2001

Date

Limit

Group 1 Class A 4kV CD, 8kV AD 3 V/m, 80-1000 MHz

0.5kV signal lines, 1kV power lines

0.5 kV line-line, 1 kV line-ground 3V, 0.15-80 MHz I cycle, 100% Dips: 30% 10ms; 60% 100ms Interrupt > 95%@5000ms

Ray Corson

Product Regulation Program Manager

Authorized EU-representative: Agilent Technologies Deutschland GmbH, Herrenberger Strabe 130, D 71034 Böblingen, Germany

For further information, please contact your local Agilent Technologies sales office, agent or distributor.

Revision: B.01 Issue Date: March 2001

Preface

This manual contains installation information, operating and programming information, and configuration information for the 3458A Multimeter. The manual consists of the following chapters:

Chapter 1 Installation and Maintenance

This chapter contains information on initial inspection, installation, and maintenance. It also contains lists of the multimeter' s available options and accessories.

Chapter 2 Getting Started

This chapter covers the fundamentals of multimeter operation. It shows you how to use the multimeter's front panel, how to send commands to the multimeter from remote, and how to retrieve data from remote.

Chapter 3 Configuring for Measurements

This chapter shows how to configure the multimeter for all types of measurements except digitizing (digitizing is covered in Chapter 5). This chapter also shows you how to use subprogram and state memory, the input buffer, and the status register.

Chapter 4 Making Measurements

This chapter discusses the methods for triggering measurements, discusses the reading formats, shows how to use reading memory, and how to transfer readings across the GPIB bus. This chapter also discusses how to increase the reading rate, how to use the multimeter's EXTOUT signal, and how to use the math operations.

Chapter 5 Digitizing

Digitizing is the process of converting a continuous analog signal into a series of discrete samples (readings). This chapter discusses the various ways to digitize signals, the importance of the sampling rate, and how to use level triggering.

Chapter 6 Command Reference

This chapter discusses the multimeter's language (HPML) and contains detailed descriptions of each command in the language. Commands are listed in alphabetical order.

Chapter 7 BASIC Programming Language

This chapter describes the BASIC commands supported by the 3458A's internal BASIC language operating system. With this feature, many of your special requirements can be easily satisfied by writing and downloading a simple BASIC subprogram to customize the multimeter's behavior.

Appendices

The appendices contain the multimeter's specifications, information on the GPIB commands recognized by the multimeter, information on locking-out the front/rear terminals switch, and contains product notes concerning digitizing and maximizing the multimeter's reading rate and throughput.

Chapter 1 Installation and Maintenance

Introduction ...........................................................15

Initial Inspection ....................................................15

Options and Accessories ........................................16

Installing the Multimeter .......................................17

Grounding Requirements .................................17

Line Power Requirements ................................17

Setting the Line Voltage Switches ...................18

Installing the Line Power Fuse ......................... 18

Power Cords ..................................................... 18

Connecting the GPIB Cable .............................19

The GPIB Address ............................................20

Mounting the Multimeter .................................20

Installation Verification ....................................21

Maintenance ...........................................................21

Replacing the Line Power Fuse ........................21

Replacing a Current Fuse ................................. 21

Repair Service ..................................................22

Chapter 2 Getting Started

Introduction ...........................................................25

Before Applying Power .........................................25

Applying Power .....................................................25

Power-On Self-Test .......................................... 25

Power-On State .................................................25

The Display ......................................................26

Operating from the Front Panel .............................27

Making a Measurement .................................... 28

Changing the Measurement Function ...............28

Autorange and Manual Ranging ....................... 29

Self-Test ...........................................................30

Reading the Error Register ...............................31

Resetting the Multimeter ..................................32

Using the Configuration Keys .......................... 32

Using the MENU Keys .....................................36

Query Commands .............................................37

Display Control ................................................37

Digits Displayed ...............................................39

Recall ................................................................39

User-Defined Keys ...........................................40

Installing the Keyboard Overlay ......................41

Operating from Remote .........................................42

Input/Output Statements ...................................42

Reading the GPIB Address ...............................42

Changing the GPIB Address ............................43

Sending a Remote Command ........................... 43

Getting Data from the Multimeter ................... 43

The Local Key .................................................. 44

Chapter 3 Configuring for Measurements

Introduction ........................................................... 47

General Configuration ........................................... 47

Self-Test ........................................................... 47

Reading the Error Registers ............................. 48

Calibration ........................................................ 48

Selecting the Input Terminals .......................... 50

Guarding .......................................................... 51

Suspending Readings ....................................... 51

Presetting the Multimeter ................................. 52

Specifying a Measurement Function ............... 53

Autorange ......................................................... 53

Specifying the Range ....................................... 54

Configuring for DC or Resistance Measurements 54

DC Voltage ...................................................... 54

DC Current ....................................................... 55

Resistance ........................................................ 56

Configuring the A/D Converter ....................... 58

Autozero ........................................................... 61

Offset Compensation ....................................... 62

Fixed Input Resistance ..................................... 62

Configuring for AC Measurements ....................... 62

AC or AC+DC Voltage .................................... 62

AC or AC+DC Current .................................... 64

Frequency or Period ......................................... 65

Specifying Bandwidth ...................................... 66

Setting the Integration Time ............................ 67

Specifying Resolution ...................................... 68

Configuring for Ratio Measurements .................... 70

Specifying Ratio Measurements ...................... 71

Using Subprogram Memory .................................. 71

Storing a Subprogram ...................................... 71

Executing a Subprogram .................................. 72

Suspending Subprogram Execution ................. 72

Nested Subprograms ........................................ 73

Autostart Subprogram ...................................... 73

Compressing Subprograms .............................. 73

Deleting Subprograms ..................................... 74

Using State Memory ............................................. 74

Storing States ................................................... 74

Recalling States ................................................ 74

Contents 7

Deleting States ..................................................75

Using the Input Buffer ........................................... 75

Using the Status Register .......................................75

Reading the Status Register .............................. 77

Interrupts ..........................................................77

Chapter 4 Making Measurements

Introduction ...........................................................81

Triggering Measurements ......................................81

The Trigger Arm Event .................................... 82

The Trigger Event ............................................82

The Sample Event ............................................82

Event Choices ...................................................82

Making Continuous Readings ..........................82

Making Single Readings .................................. 83

Making Multiple Readings ...............................83

Multiple Trigger Arming ..................................84

Making Synchronous Readings ........................ 84

Making Timed Readings ..................................85

Making Delayed Readings ...............................86

External Triggering ..........................................87

Event Combinations .........................................88

Reading Formats ....................................................92

ASCII ................................................................92

Single and Double Integer ................................ 92

Single Real .......................................................93

Using Reading Memory .........................................94

Memory Formats ..............................................95

Recalling Readings ...........................................96

Sending Readings Across the Bus ......................... 98

Output Formats .................................................98

Output Termination .......................................... 99

Using the SINT or DINT Output Format ......... 99

Using the SREAL Output Format ..................101

Using the DREAL Output Format ..................101

Increasing the Reading Rate ................................102

High-Speed Mode ........................................... 102

Configuring for Fast Readings ....................... 103

High-Speed Transfer across GPIB ................. 107

High-Speed Transfer from Memory ...............108

Determining the Reading Rate .......................109

The EXTOUT Signal ........................................... 110

Reading Complete .......................................... 112

Burst Complete ............................................... 113

Input Complete ...............................................114

Aperture Waveform ........................................114

Service Request .............................................. 114

EXTOUT ONCE ............................................115

Math Operations .................................................. 116

Real-Time vs. Post-Process ........................... 116

Enabling Math Operations ............................. 116

Math Registers ............................................... 117

NULL ............................................................. 117

SCALE ........................................................... 119

Percent ............................................................ 120

DB .................................................................. 120

DBM .............................................................. 121

Statistics ......................................................... 122

Pass/Fail ......................................................... 123

FILTER .......................................................... 124

RMS ............................................................... 125

Measuring Temperature ................................. 125

Chapter 5 Digitizing

Introduction ......................................................... 129

Digitizing Methods .............................................. 129

The Sampling Rate .............................................. 131

Level Triggering .................................................. 132

Level Triggering Examples ............................ 132

Level Filtering ................................................ 134

DCV Digitizing ................................................... 134

DCV Remarks ................................................ 135

DCV Example ................................................ 136

Direct-Sampling .................................................. 137

Direct Sampling Remarks .............................. 138

Direct Sampling Example .............................. 139

Sub-Sampling ...................................................... 139

Sub-Sampling Fundamentals ......................... 140

The Sync Source Event .................................. 141

Sub-Sampling Remarks ................................. 143

Sending Samples to Memory ......................... 144

Sending Samples to the Controller ................ 144

Viewing Sampled Data ....................................... 146

Chapter 6 Command Reference

Introduction ......................................................... 151

Language Conventions ................................... 152

Command Termination .................................. 152

Multiple Commands ....................................... 152

Parameters ...................................................... 152

Query Commands .......................................... 153

Commands by Functional Group ........................ 155

Commands vs. Measurement Functions ............. 156

ACAL ............................................................. 157

ACBAND ....................................................... 158

ACDCI, ACDCV, ACI, ACV ........................ 159

ADDRESS ..................................................... 159

8 Contents

APER ..............................................................160

ARANGE ....................................................... 160

AUXERR? ...................................................... 161

AZERO ........................................................... 162

BEEP ..............................................................164

CAL ................................................................164

CALL ..............................................................164

CALNUM? .....................................................165

CALSTR ......................................................... 165

COMPRESS ...................................................166

CONT ............................................................. 167

CSB ................................................................167

DCI, DCV .......................................................168

DEFEAT ......................................................... 168

DEFKEY ........................................................ 169

DELAY .......................................................... 170

DELSUB ........................................................ 171

DIAGNOST ....................................................171

DISP ...............................................................171

DSAC, DSDC .................................................172

EMASK .......................................................... 174

END ................................................................176

ERR? ..............................................................177

ERRSTR? .......................................................178

EXTOUT ........................................................ 178

FIXEDZ ..........................................................180

FREQ ..............................................................181

FSOURCE ...................................................... 182

FUNC ............................................................. 183

ID? ..................................................................185

INBUF ............................................................ 185

ISCALE? ........................................................ 187

LEVEL ........................................................... 188

LFILTER ........................................................190

LFREQ ........................................................... 190

LINE? .............................................................192

LOCK ............................................................. 192

MATH ............................................................ 193

MCOUNT? .....................................................195

MEM ..............................................................196

MENU ............................................................ 197

MFORMAT ....................................................198

MMATH .........................................................199

MSIZE ............................................................202

NDIG ..............................................................203

NPLC ..............................................................204

NRDGS .......................................................... 206

OCOMP .......................................................... 208

OFORMAT .................................................... 209

OHM, OHMF ................................................. 213

OPT? .............................................................. 213

PAUSE ........................................................... 214

PER ................................................................ 215

PRESET ......................................................... 216

PURGE .......................................................... 218

QFORMAT .................................................... 218

R ..................................................................... 220

RANGE .......................................................... 220

RATIO ........................................................... 223

RES ................................................................ 224

RESET ........................................................... 225

REV? .............................................................. 227

RMATH ......................................................... 227

RMEM ........................................................... 228

RQS ................................................................ 229

RSTATE ........................................................ 230

SCAL ............................................................. 231

SCRATCH ..................................................... 231

SECURE ........................................................ 231

SETACV ........................................................ 232

SLOPE ........................................................... 233

SMATH .......................................................... 234

SRQ ................................................................ 235

SSAC, SSDC .................................................. 236

SSPARM? ...................................................... 239

SSRC .............................................................. 239

SSTATE ......................................................... 243

STB? .............................................................. 244

SUB ................................................................ 245

SUBEND ........................................................ 247

SWEEP .......................................................... 247

T ..................................................................... 250

TARM ............................................................ 250

TBUFF ........................................................... 252

TEMP? ........................................................... 253

TERM ............................................................ 253

TEST .............................................................. 254

TIMER ........................................................... 254

TONE ............................................................. 255

TRIG .............................................................. 255

Chapter 7 BASIC Language for the 3458A

Introduction ......................................................... 261

How It Works ...................................................... 261

BASIC Language Commands ............................. 262

Variables and Arrays ...................................... 262

Contents 9

Math Operations .............................................262

Subprogram Definition/Deletion .................... 263

Subprogram Execution Commands ................263

Looping and Branching ..................................263

Binary Programs .............................................263

New Multimeter Commands ...............................264

3458A BASIC Language Example Program ....... 265

Variables and Arrays ...........................................266

Type Declarations ........................................... 266

Type Conversions ...........................................267

Using Variables .............................................. 267

Arrays .............................................................268

General Purpose Math .........................................269

Math Operators ...............................................270

Math Hierarchy ............................................... 272

Math Errors .....................................................272

Making Comparisons Work ........................... 272

Subprograms ........................................................273

Writing and Loading Subprograms ..................... 274

Subprogram Command Types .............................275

Definition/Deletion Commands ..................... 275

Execution Commands ..................................... 277

Conditional Statements in Subprograms ............. 278

FOR...NEXT Loops ........................................278

WHILE Loops ................................................ 279

IF...THEN Branching .....................................280

Appendix A Specifications

Appendix B GPIB Commands

Introduction .........................................................303

ABORT 7 (IFC) ..............................................304

CLEAR (DCL or SDC) ..................................304

LOCAL (GTL) ...............................................304

LOCAL LOCKOUT (LLO) ...........................305

REMOTE ........................................................ 305

SPOLL (Serial Poll) .......................................306

TRIGGER (GET) ...........................................307

Appendix C Procedure to Lock Out Front/Rear

Terminals and Guard Terminal Switches

Introduction .........................................................311

Tools Required ....................................................311

Procedure .............................................................311

Covers Removal Procedure ............................312

Guard Pushrod Removal Procedure ...............314

Front/Rear Pushrod Removal Procedure ........ 314

Switch Cap Installation Procedure ................. 316

Covers Installation Procedure ........................ 318

Appendix D Optimizing Throughout and

Reading Rate

Introducing the 3458A ........................................ 321

Application Oriented Command Language ... 321

Intrinsically Slow Measurements ................... 321

Maximizing the Testing Speed ............................ 322

Program Memory ........................................... 322

State Storage .................................................. 322

Reading Analysis ........................................... 322

Task Grouping and Sequence ........................ 322

System Uptime ............................................... 323

Purpose ................................................................ 323

Topics Covered in the Product Note include: 323

DC Volts, DC Current and Resistance ................ 323

Optimizing Through the DCV Path ............... 324

DC Current ..................................................... 326

Resistance ...................................................... 326

Optimizing Through the Track-and-Hold Path

(Direct Sampling and Subsampling) .............. 328

AC Volts and AC Current ................................... 328

Analog ACV .................................................. 328

Synchronous ACV ........................................ 328

Random ACV ................................................. 328

Comparison of ACV Modes .......................... 329

AC Current ..................................................... 329

Frequency and Period .................................... 330

Optimizing the Testing Process Through Task

Allocation ............................................................ 330

Math Operations ............................................. 330

Data Storage ................................................... 330

Output Formats .............................................. 331

State Storage and Program Memory .............. 331

Measurement List ........................................... 332

A Benchmark ...................................................... 333

Benchmark Results ........................................ 334

Still Faster ...................................................... 338

Appendix E High Resolution Digitizing With the

3458A

Introduction ......................................................... 349

Speed with Resolution ......................................... 349

Digitizing Analog Signals .............................. 350

Avoiding Aliasing .......................................... 350

Choice of Two Measurement Paths .................... 351

Using the DCV Path for Direct Sampling ...... 351

Using the Track-and-Hold Path for Direct or

Sequential Sampling ...................................... 352

10 Contents

Capturing the Data ...............................................352

High Speed Data Transfers ..................................355

Software Help The Wave Form Analysis Library 355

Starter Main Program ..................................... 357

Errors in Measurements ...................................... 358

Amplitude Errors ........................................... 359

Trigger and Timebase Errors ......................... 361

Contents 11

12 Contents

Chapter 1 Installation and Maintenance

Introduction ...........................................................15

Initial Inspection ....................................................15

Options and Accessories ........................................16

Installing the Multimeter .......................................17

Grounding Requirements .................................17

Line Power Requirements ................................17

Setting the Line Voltage Switches ...................18

Installing the Line Power Fuse ......................... 18

Power Cords ..................................................... 18

Connecting the GPIB Cable .............................19

The GPIB Address ............................................20

Mounting the Multimeter .................................20

Installation Verification ....................................21

Maintenance ...........................................................21

Replacing the Line Power Fuse ........................21

Replacing a Current Fuse ................................. 21

Repair Service ..................................................22

Serial Number .............................................22

Shipping Instructions ..................................22

Chapter 1 Installation and Maintenance 13

14 Chapter 1 Installation and Maintenance

Chapter 1 Installation and Maintenance

Introduction

This chapter contains information on initial inspection, installation, and maintenance. It also contains lists of the multimeter's available options and accessories. It's a good idea to read this chapter before making any electrical connections to the multimeter.

Initial Inspection

WARNING If any of the following symptoms exist, or are expected, remove

the multimeter from service:

1. Visible damage.

2. Severe transport stress.

3. Prolonged storage under adverse conditions.

4. Failure to perform intended measurements or functions.

Do not use multimeter until safe operation can be verified by service trained personnel.

The multimeter was carefully inspected before it left the factory. It should be undamaged and in proper working order upon receipt. If the shipping container or cushioning material is damaged, keep it, until the contents of the shipment have been checked and the multimeter has been inspected. When you unpack the multimeter, verify that the following items, in addition to this user’s guide, are included:

• Quick Reference Guide (Qty. 1)

• Calibration Manual (Qty. 1)

• Line Power Cord (Qty. 1)

• Replacement line power fuses: 500mA T (Qty 1 for 220/240 operation),

1.5A NTD (Qty 1 for 100/120 operation)

• Keyboard Overlay (Qty. 2)

• Switch Lockout Caps (Qty. 2)

If the multimeter is damaged or the contents are incomplete, promptly notify the nearest Agilent Technologies office.

Chapter 1 Installation and Maintenance 15

Options and Accessories

Table 1 lists the available options, and Table 2 lists the available accessories for the multimeter.

Table 1. Available Options

Description Option

Number

Extended Reading Memory (expands to a total of 148k-bytes)

High Stability Reference (4ppm/year) 002 03458-80002 Waveform Analysis Library 005 03458-80005 Front Handle Kit 907 5061-9688 Rack Flange Kit 908 5061-9674 Rack Flange Kit (with handles) 909 5061-9675 2 Additional Years of Return to Agilent Hardware support W30

001 03458-87901

Part Number for

Field Retrofit

Table 2. Available Accessories

Description Model or Part Number

Extra User’s Guide, Quick Reference Guide, and Calibration Manual 03458-90000 Extra Quick Reference Guide 03458-90005 Extra Calibration Manual 03458-90015 User-Defined Key Overlay 03458-84303 Switch Lockout Cap (Qty 1) 03458-44103 1 Meter GPIB Cable 10833A 2 Meter GPIB Cable 10833B 4 Meter GPIB Cable 10833C

0.5 Meter GPIB Cable 10833D Test Lead Set 34118A Low thermal test lead pair, spade lug to spade lug, 0.9m 11053A Low thermal test lead pair, spade lug to banana, 0.9m 11174A Low thermal test lead pair, banana to banana, 0.9m 11058A RF Detector Probe 34301A 40kV AC/DC High Voltage Probe 34300A 5kV AC/DC 1MHz High Voltage Probe 34119A Clamp-On AC/DC Current Probe 34302A Kelvin Probe Set (4-wires, 1m each) 11059A Kelvin Clip Set (2 each) 11062A Temperature Probe 34303A

2252

W Thermistor

1Ok

W Thermistor

W RTD stainless steel probe, alpha = 0.00385

100

W RTD for surface mount, alpha = 0.00385

40653A

40653B

40653C

40654A

40654B

16 Chapter 1 Installation and Maintenance

Installing the Multimeter

This section discusses the multimeter's grounding and power requirements and contains instructions for installing the multimeter. (Refer to Appendix C for instructions on how to install the switch lockout caps.) Figure 1 shows the multimeter's rear panel. Many of the rear panel connectors and switches are referenced in this section.

Grounding

Requirements

WARNING For protection from electrical shock, the power cord ground

Line Power

Requirements

Caution Possible multimeter damage. Before connecting the multimeter

Figure 1. Rear panel

The multimeter comes with a three-conductor AC power cable (see Figure 3). The power cable must be connected to an approved three-contact electrical outlet that has its ground conductor connected to an electrical ground (safety ground). The multimeter's power jack and the supplied power cable meet International Electrotechnical Commission (IEC) safety standards.

must not be defeated.

You can operate the multimeter from a single phase power source delivering 100 VAC, 120 VAC, 220 VAC, or 240 VAC (all values RMS), at 48 to 440 Hz. The power line voltage can vary by +/- 10% but cannot exceed 250 VAC RMS. Maximum power consumption is 80 VA (Volt-Amps). The nominal line voltage values and their corresponding limits are shown in Table 3.

to an AC power source, verify that the multimeter’s line voltage selection switches are set to match the AC line voltage and that the proper line fuse is installed. These topics are discussed in the following sections.

Chapter 1 Installation and Maintenance 17

Table 3. Line Voltage Limits

Nominal Value (RMS) Allowable Limits (RMS)

100 VAC 90 VAC to 110 VAC 120 VAC 108 VAC to 132 VAC 220 VAC 198 VAC to 242 VAC 240 VAC 216 VAC to 250 VAC

Setting the Line

Voltage Switches

The line voltage selection is pre configured according to the country to which it is shipped. Use the following procedure if you need to change this setting:

1. Remove the multimeter's line power cord before changing the positions of the AC line voltage selection switches

2. With a small flat blade screwdriver, move the switches to the appropriate positions as shown in Figure 2

3. Install the correct line power fuse as described in the next section.

Installing the Line

Power Fuse

The line power fuse must match the line voltage selection. For 100 VAC or 120 VAC operation install a 1.5A fuse. For 220 VAC or 240 VAC operation install a 500 mAT fuse.

The line power fuse holder is located on the right side of the multimeter's rear panel (see Figure 1). To install a fuse, make sure the multimeter's power cord is removed. Insert one end of the fuse into the fuse cap. Insert the fuse/cap assembly into the fuse holder. With a small flatblade screwdriver, push in on the fuse cap and rotate it clockwise.

Power Cords Figure 3 shows the various multimeter power cords and their Agilent part

numbers. If you received the wrong power cord, notify your Agilent sales office for replacement.

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Figure 2. AC line voltage switch positions

Power Cords

Australia Denmark Europe Great Brittain Switzerland U.S.A U.S.A.

Country Part Number Option Voltage

Australia 8120-1369 901 250V 6A

Denmark 1820-2956 912 259V 6A

Europe 1820-1689 902 250V 6A

Great Brittain 1820-1351 900 250V 6A

Switzerland 1820-2104 906 250V 6A

United States 1820-1378 903 120 10A

United States 1820-0698 904 240V 10A

Power cords supplied by Agilent have polarities matched to the power input socket on the instrument.

NOTE:

*CSA certification includes only these power cords

Plugs are viewed from connector and. Shape of molded plug may vary within country

Figure 3. Power Cords

Connecting the GPIB

Cable

Attach the GPIB1 cable to the 24-pin GPIB connector on the rear panel of the multimeter. Finger tighten the two screws on the cable connector. Figure 4 shows a typical GPIB connection between the multimeter and a controller.

1. GPIB (General Purpose Interface Bus) is an implementation of IEEE Standard 488-1978 and ANSI MC 1.1.

Chapter 1 Installation and Maintenance 19

Figure 4. Typical GPIB Connections

A total of 15 devices can be connected together on the same GPIB bus. The cables have single male/female connectors on each end so that several cables can be stacked. The length of the GPIB cables must not exceed 20 meters (65 feet) total, or 2 meters (6.5 feet) per device, whichever is less.

The GPIB Address You can change the multimeter's GPIB address using the ADDRESS

command. Refer to "Changing the GPIB Address", in Chapter 2, for a procedure on how to change the GPIB address. The multimeter leaves the factory with the address set to decimal 22. The corresponding ASCII code is a listen address of 6 and a talk address of V.

Note The examples in this manual are intended for Hewlett-Packard Series

200\300 computers using the BASIC language. They assume a GPIB interface select code of 7 and a device address of 22 resulting in a combined GPIB address of 722.

Mounting the

Multimeter

20 Chapter 1 Installation and Maintenance

The multimeter comes equipped with four feet, which allow it to be used as a bench instrument. It also has two tilt stands that allow you to elevate the front of the multimeter. The multimeter can be mounted in a standard 19-inch rack using the optional rack mount kits listed in Table 1.

Installation

Verification

Maintenance

The following program verifies that the multimeter is operating and can communicate with the controller over the GPIB bus.

10 PRINTER IS 1 20 OUTPUT 722;"ID?" 30 ENTER 722; IDENT$ 40 PRINT IDENT$ 50 END

If the multimeter has been correctly installed, the message HP 3458A will be printed on the designated system printer. If no message is printed, make sure power is applied to the multimeter. Also check the GPIB connections, the interface address setting, and the multimeter's address.

This section describes how to replace the multimeter's fuses and how to obtain repair service.

Replacing the Line

Power Fuse

Replacing a Current

Fuse

The line power fuse holder is located on the right side of the multimeter's rear panel. Before replacing the fuse, disconnect the multimeter's line power. To replace the fuse, use a small flatblade screwdriver to push in on the fuse cap and rotate it counterclockwise. Remove the fuse cap and replace the fuse with the appropriate type (see Table 4). (The Agilent part number for the gray line power fuse cap is 2110-0565.) Re-install the fuse cap and apply power.

Table 4. Replacement Power Line Fuses and Caps

Line Voltage Power Line Fuse

100 or 120 VAC (Nominal) 1.5A NTD, Agilent Part Number 2110-0043 220 or 240 VAC (Nominal) 500mAT SB, Agilent Part Number

2110-0202

Each of the front and rear current terminals (labeled I) contains a current fuse. To access the fuse, unscrew (rotate counterclockwise) the current terminal binding post knob until it stops. Push in on the terminal and rotate it clockwise. The entire terminal/fuse assembly can now be removed as shown in Figure 5. If necessary, replace the fuse with a 1A 250V NTD fuse (Agilent part number 2110-0001). (CAUTION: never use a slow-blow fuse as a current fuse; multimeter damage will result.) Replace the terminal/fuse assembly by pushing it in and turning counterclockwise until the assembly locks in place.

Chapter 1 Installation and Maintenance 21

Figure 5. Current Terminal/Fuse Assembly

Repair Service You may have the multimeter repaired at an Agilent Technologies service

center whether it is under warranty or not. Contact the nearest Agilent Sales Office for shipping instructions prior to returning the instrument.

Serial Number Agilent instruments are identified by a two part, ten-character serial number

of the form 0000A00000. The first four digits are the same for all identical products. They change only when a change is made to the product. The letter indicates the country of origin. An A indicates the product was made in the United States of America. The last five digits are unique to each instrument. The multimeter's serial number is located to the right of the multimeter's rear terminals.

Shipping Instructions If you need to ship the multimeter, be certain that the multimeter is in a

protective package (use the original shipping containers and cushioning materials) to prevent transit damage. Such damage is not covered by warranty. Attach a tag to the shipment identifying the owner and indicating the service or repair needed. Include the model number and serial number of the multimeter. We suggest that you insure the shipment.

22 Chapter 1 Installation and Maintenance