Fluke 8020A Manual de usuario

instruction manual

This manual documents the Model 8020A and its assemblies at the revision level shown in Appendix A. If

yourinstrument containsassemblies withdifferent revisionletters, it will be necessaryforyou toeither update

or backdate this manual. Refer to the supplemental changelerrata sheet for newer assemblies, or to the

Appendix A for older assemblies.

John Fluke Mfg. Co., Inc.

P.O.

Box 43210 Mountlake Terrace, Washington 98043

Rev.

8/77

Rev.

5/78

Dear Customer:

Congratulations! We at Fluke are proud to present you with the Model 8020A

Multimeter. This instrument represents the very latest in integrated circuit and

display technology. Asaresult, the endproduct isaruggedandreliableinstrument

whose performance and design exhibit the qualities of

finely engineered lab

instrument. It also provides some unique measurement capabilitiesin addition to

those normally found in an ordinary multimeter.

Tojirllyappreciate and protect your investment, we suggest that you takea few

moments toread the manual. Asalways, Fluke stands behind your 8020A with a

full one

year warranty and a worldwide service organization.

the need arises,

please don't hesitate to call on us

Thank you for your trust and confidence.

JOHN

FLUKE

MFG.

CO., INC.

Some semiconductors and custom IC's can be

damaged by electrostatic discharge during

handling. This notice explains how you can

minimize the chances of destroying such devices

by:

Knowing that there is a problem.

Learning the guidelines for handling them.

Using the procedures, and packaging and

bench techniques that are recommended.

TheStaticSensitive(S.S.) devicesareidentified in theFluketechnical manualparts list withthesymbol

The following practices should be followed to minimize damage to S.S. devices.

MINIMIZE HANDLING

DISCHARGE PERSONAL STATIC

BEFORE HANDLING DEVICES

KEEP PARTS IN ORIGINAL CONTAINERS

UNTIL READY FOR USE.

HANDLE S.S. DEVICESBY THE BODY

USE ANTI

STATIC CONTAINERS FOR

HANDLING AND TRANSPORT

HANDLE S.S. DEVICES ONLY AT

STATIC

FREE WORK STATION

ONLY ANTI

STATIC TYPE SOLDER-

SUCKERS SHOULD BE USED.

10.

ONLY GROUNDED TIP SOLDERING

IRONS SHOULD BE USED.

DO NOT SLIDE S.S. DEVICES OVER

ANY SURFACE

Anti

static bags, for storing S.S. devices or pcbs

withthesedevicesonthem,canbeorderedfromthe

JohnFlukeMfg.Co., Inc..Seesection

inanyFluke

technical manual for orderinginstructions. Usethe

followingpartnumberswhenorderingthesespecial

bags.

John Fluke Bag Size

Part No.

453522 6

453530 8

AVOID PLASTIC, VINYL AND STYROFOAM

453548 16

IN WORK AREA

454025 12

Table of Contents

SECTION TITLE PAGE

1 INTRODUCTIONANDSPECIFICATIONS

......................

INTRODUCTION

....................................

1-1

PREPARING FOROPERATION

.......................

1-1

........................................

Unpacking 1

Battery Installation

.................................

GETTING ACQUAINTED

.............................

Physical Features

..................................

InitialCheck

Out Procedure

.........................

..................................

SPECIFICATIONS 1

.................................

OPERATINGINSTRUCTIONS 2

2.10

INTRODUCTION

...................................

2.3 . OPERATING NOTES

.................................

2.5

Input Power

......................................

2-12

Display Readings

..................................

2.15 . Input ConnectionstoCOMMON

.....................

2.17 . Input Overload Protection

...........................

2.19 . Fuse Replacement

..................................

2.22

AC Measurement

..................................

2.24 . Resistance

........................................

2.27 . Voltage AC/DC

...................................

2-4

2.30

Current AC/DC

...................................

33. Conductance

......................................

2.37 . OPERATION

.......................................

2.39

APPLICATIONS

....................................

2.41

Transistor Tester

...................................

LeakageTester

....................................

3 THEORYOFOPERATIONS

...................................

3.1 . INTRODUCTION

....................................

..............

3.3

OVERALL FUNCTIONAL DESCRIPTION 3

3.8 . BLOCK DIAGRAM ANALYSIS

........................

3.9

A/DConverter

....................................

3.18

InputSignalConditioners

...........................

4 MAINTENANCE

..............................................

4.1 . INTRODUCTION

....................................

............................

4.3 . SERVICE INFORMATION 4

4.7

GENERALINFORMATION

...........................

(Continued on next page)

SECTION TITLE PAGE

.................................

Access Information 4

..........................................

Cleaning 4-3

..........................

Battery/ Fuse Replacement 4

PERFORMANCE TEST

................................

4-3

...................................

Initial Procedure 4-3

DisplayTest

.......................................

4-3

........................

Resistance/Conductance Test 4

DC VoltageTest

....................................

4-4

AC VoltageTest

....................................

4-4

....................................

DCCurrent Test 4-5

CALIBRATION

.....................................

TROU BLESHOOI'ING

..............................

LISTOFREPLACEABLEPARTS 5

IN~I'KODIJ("I'I0N

.....................................

5-1

HOW TOOBTAIN PARTS

.............................

5-1

................................

6 OPTIONS ANDACCESSORIES

.....................................

INTRODUCTION 6

......................

DELUXE CARRYINGCASE(C90) 6-1

........................

BATTERY ELIMINATOR(A81) 6

......................

TEMPERATURE PROBE (801'-150) 6

Introduction

......................................

6-2

......................................

Specifications 6-2

CURRENTTRANSFORMER (801-600)

.................

Introduction

.......................................

......................................

Specifications 6-2

HIGH VOLTAGE PROBE(80K-40)

....................

6-2

.......................................

Introduction 6

Specification3

......................................

HIGH FREQUENCY PROBE(8IRF)

..................

6-2

......................................

Introduction 6

......................................

Specil'ications 6-2

7 SCHEMATIC DIAGRAMS

.....................................

SERVICE CENTERS

..........................................

...........................................

SERVICE REPORT 7

WARRANTY

APPENDIX A

Manual Change lnformatlon

List of

lustrations

FIGURE TITLE PAGE

1.1

Controls. Indicators. Connectors

.......................................

2.1

Recommended MethodforRemoving Battery Cover

......................

2.2

WaveformConversion

...............................................

2.3

Voltage Measurement Error Calculations

.....................................................

(LoadingError) 2

Current Measurement Error Calculations

(Burden Voltage Error)

................................................

2.5

Conductance

Resistance Conversion Scales

..............................................

and Interpolation Table 2

........................................

2.6

Selectinga Rangeand Function 2

2.7

Transistor BetaTest Fixture

...........................................

2-7

3.1

8020ASimpl~fiedBlock Diagram

......................................

3.2

Dual

Slope A/D Convertor

...........................................

3.3

InputSignalConditioners

............................................

.....................................

4.1

Calibration Adjustment Locations 4

................................................

5.1

8020APCBAssembly 5

...................................................

6.1

8020AAccessories 6

List

Tables

TABLE TITLE

PAGE

.......................................

Controls. Indicators.Connectors 1

................................................

8020A Spectifications

.....................................

Summaryof Input Overload Limits

Resistance Ranges and Their Voltage/Current

..........................................................

Capability

..................................

Listof Recommended Test Equipment 4

.......................................

Resistance/ConductanceChecks 4

..................................................

DCVoltageChecks 4

ACVoltage Checks

..................................................

.............................................

DCCurrent

(mA)

Checks 4

...............................................

TroubleshootingGuide 4

Section

Introduction

Specifications

1. INTRODUCTION

2. The Fluke Model 8020A is a portable 3%

digit,

pocket

sized multimeter that is ideally suited for field,

lab, shop, bench, or homeapplications. It weighsinatan

impressive369 grams (13 ounces) with battery,and packs

more measurement power than the heavy

weights.

Here's a review of some of the features that qualify the

8020A as a real pro:

All VOM functions plus the versatile conductance

function (six in all) are included as standard.

DC Voltage

100 pV to lOOOV

AC Voltage

100 pV to 750V

DC Current

1 pA to 2000 mA

AC Current

1 pA to 2000 mA

Resistance

0.1R to 20 MR

Conductance

0.1 nS to 200 nSand .001 mS to 2 mS

siemens

R).

CONDUCTANCE!! A new multimeter function that

allows fast, accurate, noise free resistance measure

ments up to 10,000 MR.

Line operation is possible using a Model A81 Battery

Eliminator (See Section 6, accessories).

Effective overload and transient protection on all

ranges.

overrange indication on each range.

Long term calibration (1 year) is achieved by using

high stability components, and minimizing adjustments

(three total).

Full auto

polarity operation.

Dual slope integration toensure fast, accurate, noise

free measurements.

A complete line of range extending accessories is

available.

1-3. PREPARING FOR OPERATION

4. Unpacking

5. When received, the 8020A shipping carton

The

latest IC

and

used

should contain the items listed below. Account for, and

achieve the lowest possible component count. This, in

inspect

each

item

before the

discarded.

the

turn, ensures reliability, accuracy, stability and a really event of a damaged instrument, contact your nearest

rugged, easy

handle instrument. John Fluke Service Center as listed at the rear of this

Up to 200 hours of continuous operation can be

expected from a single, inexpensive, 9V, alkaline battery

(transitor radio/calculator type).

Low battery voltage automatically detected and

displayed.

No needles to bend. No parallax and no zero adjust.

Just a high contrast, easy

read, 3-112 digit, liquid

crystal display.

manual. Please retain. and use the shipping container if

reshipment is required.

Contents:

Model 8020A Multimeter

Model 8020A Instruction Manual

9V Battery

Set of Test Leads (red and black)

8020A Operator's Guide (plastic card)

Accessories as ordered

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