Fluke 8021B Manuale utente

NOTE

This manual documents the Model 8021 B and its assemblies at the revision levels

shown in Appendix A. If your instrument contains assemblies with different revision

letters, it will be necessary for you to either update or backdate this manual. Refer to

the supplemental change/errata sheet for newer assemblies, or the backdating sheet

in Appendix Afor older assemblies.

8021 B

Digital

Multimeter

Instruction Manual

P/N 616037

July 1981

Rev. 15/82

Dear Customer:

Congratulations! We at Fluke are proud to presentyou with theModel 8020B

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

display technology. As aresult, the end product is arugged and reliable

instrument whose performance and design exhibit the qualities of afinely

engineered lab instrument.

To fully appreciate and protect your investment, we suggest you take afew

moments to read the manual. As always, Fluke stands behindyour802IB with a

full 2year warranty and aworldwide service organization. If the need arises,

please don't hesitate to call on us.

Thank you for your trust and confidence.

John Fluke Mfg. Co., Inc.

8021 B

Table of Contents

SECTION TITLE PAGE

1INTRODUCTION AND SPECIFICATIONS 1-1

1-1. INTRODUCTION W

1-3. ACCESSORIES 1-2

5. SPECIFICATIONS 1-2

2OPERATING INSTRUCTIONS 2-1

1. INTRODUCTION 2-1

2-3. PREPARING FOR OPERATION 2-1

2-4. Unpacking 2-1

2-7. Battery and/or Fuse Installation/ Replacement 2-1

2-9. PHYSICAL FEATURES 2-2

2-11. OPERATING NOTES 2-2

2-13. Input Overload Protection 2-6

2-15. Input Connections to COMMON 2-6

2-17. Fuse Check 2-6

2-19. Fuse Replacement 2-7

2-21. The Display 2-7

2-25. OPERATION 2-8

2-27. INITIAL CHECK-OUT PROCEDURE 2-15

2-29. MEASUREMENT TECHNIQUES 2-16

2-31. AC Measurements 2-16

2-33. Voltage AC/ DC 2-16

2-36. Current AC/ DC 2-16

40. Resistance 2-19

243. Continuity 2-19

THEORY OF OPERATION 3-1

1. INTRODUCTION 3-1

3-3. OVERALL FUNCTIONAL DESCRIPTION 3-1

3-8. BLOCK DIAGRAM ANALYSIS 3-1

3-9. A/D Converter 3-1

3-18. Input Signal Conditioners 3-6

/(continued on page ii)

8021 B

TABLE OF CONTENTS, continued

SECTION TITLE PAGE

4MAINTENANCE 4-1

4-1. INTRODUCTION 4-1

4-3. SERVICE INFORMATION 4-1

4-7. GENERAL INFORMATION 4-1

4-8. Access Information 4-1

4-17. Cleaning 4-5

4-19. Battery/ Backup Fuse Replacement 4-5

4-21. PERFORMANCE TEST 4-6

4-23. Initial Procedure 4-6

4-25. Display Test 4-6

4-27. Resistance Test 4-6

4-29. Continuity Test 4-7

4-31. DC Voltage Test 4-7

4-33. AC Voltage Test 4-8

4-35. DC Current Test 4-9

4-37. CALIBRATION 4-9

40. TROUBLESHOOTING 4-10

5LIST OF REPLACEABLE PARTS 5-1

1. INTRODUCTION 5-1

4. HOW TO OBTAIN PARTS .5-1

6OPTIONS AND ACCESSORIES 6-1

1. INTRODUCTION 6-1

6-3. DELUXE CARRYING CASE (C-90) 6-1

6-5. TEMPERATURE PROBES (80T-150C and 80T-150F) 6-1

6-6. Introduction 6-1

6-8. Specifications 6-1

6-9. CURRENT TRANSFORMER (801-600) 6-4

6-10. Introduction 6-4

6-12. Specifications 6-4

6-13. HIGH VOLTAGE PROBE (80K-6) 6-4

6-14, Introduction 6-4

6-16. Specifications 6-4

6-17. HIGH VOLTAGE PROBE (80K-40) 6-4

6-18. Introduction 6-4

6-20. Specifications 6-4

6-21. HIGH FREQUENCY PROBE (83RF) 6^

6-22. Introduction 6-4

6-24. Specifications... 6-4

6-25. HIGH FREQUENCY PROBE (85RF) 6-5

6-26. Introduction 6-5

6-28. Specifications 6-5

6-29. BATTERY ELIMINATOR (A81) 6-5

6-31. CURRENT SHUNT (80J-10) 6-6

(continued on page Hi)

8021

TABLE OF CONTENTS, continued

SECTION TITLE PAGE

6-32. Introduction 6-6

6-34. Specifications 6-6

6-35. AC/ DC CURRENT PROBE (Y8100) 6-6

6-36. Introduction 6-6

6-38. Specifications 6-6

6-39. AC CURRENT TRANSFORMER (Y8101) 6-7

6-40 Introduction 6-7

6-42. Specifications 6-7

6-43. SAFETY DESIGNED TEST LEAD SET (Y8132) .... 6-7

6-45. DELUXE TEST LEAD SET (Y8134) 6-7

6-47. SLIM FLEX TEST LEAD SET (Y8140) 6-7

7SCHEMATIC DIAGRAMS 7-1

AMANUAL CHANGE AND BACKDATING INFORMATION .A-1

il’l/lV

8021 B

List of Tables

TABLE TITLE PAGE

1-1. 802 IB Accessories

2. 802 IB Specifications i-2

1. Controls, Indicators and Connectors 2-4

2-2. Model 802 IB Overload Limits 2-7

2-3. Voltage/ Current Capability of Resistance Ranges 2-21

4-1. List of Recommended Test Equipment 4-2

4-2. Resistance Checks •4-7

4-3. DC Voltage Checks *4-8

4-4. AC Voltage Test .4-9

4-5. DC Current (mA) Checks —4-9

6. Troubleshooting Guide 4-1!

1. 802 IB Final Assembly 5-3

5-2. A1 Main PCB Assembly •5-6

5-3. A2 Annunciator PCB Assembly 5-10

4. Federal Supply Codes for Manufacturers 5-12

1. A81 Model vs Input Power 6-5

8021

List of Illustrations

FIGURE TITLE PAGE

2-1. Removing the Battery Cover 2-3

2-2. Battery Removal ••2-3

2-3. Controls, Indicators and Connectors 2-4

2-4. DC Volts (DC V) Operation 2-9

2-5. AC Volts (AC V) Operation 2-10

2-6. Direct Current (DC m.A) Operation 2-11

2-7. Alternating Current (AC mA) Operation 2-12

2-9. Resistance (fi) Operation 2-14

2-10. Waveform Conversion 2-17

2-11. Voltage Measurement Error Calculations (Loading Error) .2-18

12. Current Measurement Error Calculations 2-20

1. Model 802 IB Simplified Block Diagram 3-2

3-2. Dual Slope A/DConverter 3-4

3. Input Signal Conditioners 3-8

1. Calibration Adjustment Locations 4-3

2. LCD Display Assembly 4-4

1. 8021 BFinal Assembly 5-5

5-2. A! Main PCB Assembly 5-9

3. A2 Annunciator PCB Assembly 5-1

1. Model 802 IB Accessories 6-2

vii/viii

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