Agilent Technologies 4285A User manual

Agilent 4285A Precision LCR Meter

Getting Started Guide

SERIAL NUMBERS

This manual applies directly to instruments with serial number prex

3009J

Agilent Part No. 04285-90011

Printed in JAPAN March 2001

Fourth Edition

Notice

The information contained in this document is subject to change

without notice

This document contains proprietary information which is protected by

photocopied, reproduced, or translated to another language without

the prior written consent of the Agilent Technologies

Agilent T

echnologies Japan, Ltd.

Component T

est PGU-Kobe

1-3-2, Murotani, Nishi-ku, Kobe-shi,

Hyogo

,651-2241 Japan



Manual Printing

History

The manual printing date and part number indicate its current

edition. The printing date changes when a new edition is printed.

(Minor corrections and updates which are incorporated at reprint do

not cause the date to change.) The manual part number changes when

extensive technical changes are incorporated.

June 1990

::::: :: ::::::::::

First Edition (part number: 04285-90001)

December 1996

:::

Second Edition (part number: 04285-90011)

March 2000

:::::::::::::::

Third Edition (part number: 04285-90011)

March 2001

::::: ::::::::

ourth Edition (part number: 04285-90011)

iii

Safety Summary

The following general safety precautions must be observed during all

phases of operation, service, and repair of this instrument. F

ailure to

comply with these precautions or with specic

WARNINGS

elsewhere

in this manual may impair the protection provided by the equipment.

In addition it violates safety standards of design, manufacture

,and

intended use of the instrument.

The Agilent Technologies assumes no liability for the customer's

failure to comply with these requirements.

Note

4285A complies with INST

ALLA

TION CA

TEGORY II and POLLUTION

DEGREE 2in IEC1010-1.4285A is INDOOR USE product.

Note

LEDs in this product are Class 1in accordance with IEC825-1.

CLASS 1LED PRODUCT

Ground The

Instrument

oavoid electric shock hazard, the instrument chassis and cabinet

must be connected to asafety earth ground by the supplied power

cable with earth blade

DO NOT Operate In An

Explosive Atmosphere

Do not operate the instrument in the presence of ammable gasses or

fumes

.Operation of any electrical instrument in such an environment

constitutes adenite safety hazard.

Keep A

way From Live

Circuits

Operating personnel must not remove instrument covers

.Component

replacement and internal adjustments must be made by qualied

maintenance personnel. Do not replace components with the power

cable connected. Under certain conditions

,dangerous voltages may

exist even with the power cable removed. T

oavoid injuries

,always

disconnect power and discharge circuits before touching them.

DO NOT Service Or

djust Alone

Do not attempt internal service or adjustment unless another person,

capable of rendering rst aid and resuscitation, is present.

DO NOT Substitute

Parts Or Modify

Instrument

Because of the danger of introducing additional hazards

,do not

install substitute parts or perform unauthorized modications to the

instrument. Return the instrument to aAgilent T

echnologies Sales and

Service Oce for service and repair to ensure that safety features are

maintained.

Dangerous Procedure

Warnings

, such as the example below

, precede potentially dangerous

procedures throughout this manual. Instructions contained in the

warnings must be followed.

Warning

Dangerous voltages, capable of causing death, are present in this

instrument. Use extreme caution when handling, testing, and

adjusting this instrument.

Safety Symbols

General denitions of safety symbols used on equipment or in manuals

are listed below

Instruction manual symbol: the product is marked

with this symbol when it is necessary for the user to

refer to the instruction manual.

Alternating current.

Direct current.

On (Supply).

O (Supply).

In position of push-button switch.

Out position of push-button switch.

Frame (or chassis) terminal. Aconnection to the

frame (chassis) of the equipment which normally

include all exposed metal structures

This

arning

sign denotes a hazard. It calls attention

to aprocedure, practice, condition or the like

,which,

if not correctly performed or adhered to,could result

in injury or death to personnel.

This

Caution

sign denotes ahazard. It calls attention

to aprocedure

,practice

,condition or the like

,which,

if not correctly performed or adhered to

,could result

in damage to or destruction of part or all of the

product.

Note

denotes important information. It calls

attention to aprocedure

,practice

,condition or the

,which is essential to highlight.

Axed to product containing static sensitive devices

use anti-static handling procedures to prevent

electrostatic discharge damage to component.

4285A Precision

LCR Meter

Documentation

Map

The documentation for the 4285A has been separated into several

manuals

ollowing is a brief description of each manual and its

purpose

The

4285A Getting Started Guide

walks you through

system setup and initial power-up

,shows how to make

basic measurements and explains commonly used features

The

4285A OPERA

TION MANU

(Agilent P

art Number

04285-90020) provides general information, specications

GPIB programming information, and in depth reference

information.

The

4285A MAINTENANCE MANU

(Agilent P

art

Number 04285-90030) explains how to verify conformance

to published specications

The

4285A SERVICE MANUAL

(Agilent Part Number

04285-90031) explains how to adjust, troubleshoot, and

repair the instrument. (Furnished Option 915 only.)

Typeface

Conventions

Bold

Boldface type is used when a term is dened.

or example:

icons

are symbols.

Italics

Italic type is used for emphasis and for titles

of manuals and other publications

Italic type is also used for keyboard entries

when anameor a variable must be typed in

place of the words in italics. For example:

copy

lename

means to type the word

copy

to type a space, and then to type the name of

ale such as

file1

Computer

Computer font is used for on-screen prompts

and messages.

HARDKEYS

Labeled keys on the instrument front panel

are enclosed in

NNNNNNNNNNNNNNNNNNNNNNNNNN

SOFTKEYS

Softkeys located to the right of the Liquid

Crystal Display (LCD) are enclosed in

NNNNN

Certication

Agilent T

echnologies certies that this product met its published

specications at the time of shipment from the factory

.Agilent

echnologies further certies that its calibration measurements are

traceable to the United States National Institute of Standards and

echnology (

nist

), to the extent allowed by the Institute's calibration

facility

,or to the calibration facilities of other International Standards

Organization members

arranty

This Agilent T

echnologies instrument product is warranted against

defects in material and workmanship for a period of one year from

the date of shipment, except that in the case of certain components

listed in \Components not Covered by W

arranty" in Chapter 1of this

manual, the warranty shall be for the specied period. During the

warranty period, Agilent T

echnologies will, at its option, either repair

or replace products which prove to be defective

For warranty service or repair

, this product must be returned to a

service facility designated by Agilent T

echnologies. Buyer shall prepay

shipping charges to Agilent T

echnologies and Agilent T

echnologies

shall pay shipping charges to return the product to Buyer

. However

Buyer shall pay all shipping charges

,duties

, and taxes for products

returned to Agilent Technologies from another country.

Agilent Technologies warrants that its software and rmware

designated by Agilent Technologies for use with an instrument will

execute its programming instruction when property installed on that

instrument. Agilent Technologies does not warrant that the operation

vii

of the instrument, or software

,or

rmware will be uninterrupted or

error free.

Limitation of

arranty

The foregoing warranty shall not apply to defects resulting from

improper or inadequate maintenance by Buyer

,Buyer-supplied

software or interfacing, unauthorized modication or misuse

operation outside of the environmental specications for the product,

or improper site preparation or maintenance

No other warranty is expressed or implied. Agilent Technologies

specically disclaims the implied warranties of merchantability and

tness for aparticular purpose

Exclusive

Remedies

The remedies provided herein are buyer's sole and exclusive

remedies

gilent T

echnologies shall not be liable for any direct,

indirect, special, incidental, or consequential damages

,whether based

on contract, tort, or any other legal theory

Assistance

Product maintenance agreements and other customer assistance

agreements are available for Agilent T

echnologies products

or any assistance

,contact your nearest Agilent T

echnologies Sales

and Service Oce

ddresses are provided at the back of this manual.

viii

Contents

1. Before Y

ou Begin

Initial Considerations .................1-1

Preparation for Use .................. 1-2

Power Requirements ................1-2

Line V

oltage and Fuse Selection ...........1-2

Line V

oltage Selection ..............1-2

Fuse Selection . ...............1-2

Setting Up the High Current DC Biased Measurement

System .......

..............1-3

Equipment Required .......... .. ...1-3

Installing the T

est Fixture ....... .. ....1-3

Interconnecting the Units ......... .. .. 1-4

Setting Up the Precision QMeasurement System ...1-4

Equipment Required ............ ...1-4

Interconnecting the Units ........... ..1-4

Connecting 4285A, 42841A, and 42851A . ......1-5

Equipment Required ...............1-5

Interconnecting Cables ..............1-5

2. Getting A

cquainted with the 4285A

Front P

anel Description ................2-1

LCD P

anel and Softkey ...............2-1

MENU keys and Display P

ages ............2-2

CURSOR and CURSOR Keys .............2-3

ENTRY Keys .. ..................2-4

GPIB Status Indicator and

LCL

Key .........2-4

TRIGGER

Key ...............

.. 2-4

Memory Card Slot ................ .2-5

DC-BIAS

Key ............... .. .. .2-5

Contrast Control Knob ...........

....2-5

Front P

anel Operation .... .. .. .. . .. .. . 2-6

3. Basic Measurement Examples

Introduction ......

............... 3-1

Capacitor Measurement . . . . . . .. .. .. .. .. 3-1

Measurement Conditions ......

........ 3-1

Equipment Required ................ 3-1

Operation Procedure .... .. .. .. .. .. .. 3-1

Inductance Measurements . . . . . . . . . . . . . . . 3-5

Measurement Conditions .............. 3-5

Equipment Required ................ 3-5

Operation Procedure .... .. .. .. .. .. .. 3-5

DC Voltage Biased Measurement . . . . . . . . . . . . 3-10

Measurement Conditions .............. 3-10

Equipment Required ................ 3-10

Contents-1

Preparation Before Measurement ..

......3-10

Checking the Option Installed ........... 3-10

Operation Procedure . ............... 3-10

Measurements Using 1m/2m T

est Leads ........3-14

Equipment Required . ............... 3-14

Operation Procedure . ............... 3-14

DC Current Biased Measurement ........... 3-20

Measurement Conditions .............. 3-20

Equipment Required ................ 3-20

Preparation Before Measurement ..........3-20

Checking the Option Installed ...........3-20

Conguring the High Current Biased Measurement

System ............... .. .. .3-20

Operation Procedure .............. .. 3-23

Precision QMeasurement ...........

.. 3-27

Measurement Conditions ............

.. 3-27

Equipment Required ............

.. 3-27

Preparation Before Measurement ..........3-27

Checking the Option Installed ...........3-27

Congure the Precision Qmeasurement System ...3-27

Operation Procedure ...........

.3-28

4. Instrument F

eature Tutorial

Memory Function .....

............4-1

System Memory .....

...........4-1

Internal Non-V

olatile Memory/External Memory Card .4-2

utomatic Level Control Function ....

.......4-3

ALC Theory of Operation ..............4-3

ALC Measurement Time ..............4-4

ALC Voltage/Current Setting Range .........4-4

Operation Procedure of the ALC Function ......4-4

List Sweep Function ..

...............4-5

Structure of LIST SWEEP function .........4-5

LIST SWEEP DISPLA

Ypage ............ 4-5

LIST SWEEP SETUP page .............4-5

LIST SWEEP Measurement Procedure ........4-6

Print Function ..................

.. 4-9

Print Mode ..................

. 4-9

Printer Requirements .......... .. ..

.. 4-10

Printer Troubleshooting ...............4-10

5. What's Next?

Index

Contents-2

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