Deja de chatarra electrónica - repararlo yo mismo

Your John Fluke Model 8020A is a pocket-sized digital multimeter that is ideally suited for application in the field, lab, shop or home. Some of the features of your instrument are: Φ All VOM functions plus the versatile conductance function (six in all) are included as standard. • DC Voltage - 100 μ V to 1000V • AC Voltage- 100 /tV to 750V • DC Current - 1 μΑ to 2000 mA • AC Current - I μΑ to 2000 mA • Resistance - 0.1Π - 20 ΜΩ • Conductance - 0.1 nS to 200 nS and .001 mS to 2 mS (S = Siemens = I/O). • CONDUCTANCE - A new multimeter function that allows fast, accurate, noise free resistance measurements up to 10,000 ΜΩ. • 3 I /2 digit liquid crystal display, a high contrast display that can be read easily from across the room. No more worries about bent needles, parallax, etc. • Each range has: • Full auto-polarity operation. • Overrange indication. • Effective protection for overloads up to 1000V dc and transients up to 6000V peak. • Dual slope integration measurement technique to insure noise-free measurements. • Long term calibration stability - I year. Easy calibration - few adjustments. • Lightweight - 369 grams (13 ounces). • Up to 200 hours of continuous operation can be expected from a single, inexpensive, 9V, alkaline battery (transistor radio/calculator type). Φ Low battery voltage automatically detected and displayed. • Line operation is possible using a Model A81 Battery Eliminator (see Section 6, Accessories). • Protected test leads - finger guards on the probes and shrouded contacts on the connectors discourage accidental contact with circuit voltages. • A full line of Accessories that extend the range and scope of your instrument.

Fluke 8020A Digital multimeter

1 INTRODUCTION AND SPECIFICATIONS ... 1-1 l-l. INTRODUCTION l-l I-3. PREPARING FOR OPERATION ... I-2 I-4. Unpacking 1-2 I-7. Battery Installation/'Replacement ... I-2 I-9. PHYSICAL FEATURES 1-4 1-Il. INITIAL CHECK-OUT PROCEDURE ... 1-4 I -13. Accessories 1-6 I -15. SPECIFICATIONS I-6 2 OPERATING INSTRUCTIONS ... 2-1 2-I. INTRODUCTION ... 2-I 2-3. INPUT POWER 2-i 2-4. Battery Life 2-1 2-6. Line Power Operation 2-1 2-8. OPERATING NOTES 2-2 2-10. Input Overload Protection ... 2-12. Input Connections to COMMON ... 2-3 2-14. Fuse Replacement 2-3 2-16. The Display 2-3 2-20. OPERATION 2-4 2-22. MEASUREMENT TECHNIQUES ... 2-5 2-24. AC Measurement 2-5 2-26. Voltage AC/DC 2-5 2-29. Current AC/DC 2-5 2-33. Resistance 2-9 2-37. Conductance 2-10 2-41. APPLICATIONS 2-10 2-43. Transistor Tester 2-10 2-48. Leakage Tester ... 2-13 3 THEORY OF OPERATION ... 3-1 3-1. INTRODUCTION ... 3-1 3-3. OVERALL FUNCTIONAL DESCRIPTION ... 3-1 3-8. BLOCK DIAGRAM ANALYSIS ... 3-3 3-9. A/D Converter 3-3 3-18. Input Signal Conditioners ... 3-6 4 MAINTENANCE ... 4-1 4-1. INTRODUCTION ... 4-1 4-3. SERVICE INFORMATION 4-1 4-7. GENERAL INFORMATION ... 4-2 4-8. Access Information 4-2 4-17. Cleaning 4-5 4-19. Battery/Fuse Replacement 4-5 4-21. PERFORMANCE TEST 4-5 4-23. Initial Procedure 4-5 4-25. Display Test ... 4-6 4-27. Resistance/Conductance Test ... 4-6 4-29. DC Voltage Test ... 4-7 4-31. AC Voltage Test 4-7 4-33. DC Current Test 4-8 4-35. CALIBRATION 4-9 4-38. TROUBLESHOOTING ... 4-10 5 LIST OF REPLACEABLE PARTS ... 5-1 5-1. INTRODUCTION ... 5-1 5-4. HOW TO OBTAIN PARTS ... 5-2 6 OPTIONS AND Accessories ... 6-1 6-1. INTRODUCTION ... 6-1 6-3. DELUXE CARRYING CASE ... 6-1 6-5. TEMPERATURE Probe (80T-150) ... 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-40) ... 6-4 6-14. Introduction 6-4 6-16. Specifications 6-4 6-17. HIGH FREQUENCY Probe (81RF) ... 6-4 6-18. Introduction 6-4 6-20. Specifications 6-5 6-21. HIGH FREQUENCY Probe (82RF) ... 6-5 6-22. Introduction 6-5 6-25. Specifications 6-5 6-26. BATTERY ELIMINATOR (A81) ... 6-5 6-28. CURRENT SHUNT (80J-10) 6-6 6-29. Introduction 6-6 6-31. Specifications 6-6 7 SCHEMATIC DIAGRAMS ... 7-1 APPENDIX A ... A-1

1 INTRODUCTION AND SPECIFICATIONS ... 1-1 1-1. INTRODUCTION ... 1-1 1-3. PREPARING FOR OPERATION ... 1-1 1-1. Unpacking ... 1-1 1-6. Battery Installation ... 1-2 1-8. GETTING ACQUAINTED ... 1-2 1-10. Physical Features ... 1-2 1-12. Initial Check-Out Procedure ... 1-2 1-14. SPECIFICATIONS ... 1-4 2 OPERATING INSTRUCTIONS ... 2-1 2-10. INTRODUCTION ... 2-1 2-3. OPERATING NOTES ... 2-1 2-5. Input Power ... 2-1 2-12. Display Readings ... 2-2 2-15. Input Connections to COMMON ... 2-2 2-17. Input Overload Protection ... 2-2 2-19. Fuse Replacement ... 2-3 2-22. AC Measurement ... 2-3 2-24. Resistance ... 2-3 2-27. Voltage AC /DC ... 2-4 2-30. Current AC/DC ... 2-5 2-33. Conductance ... 2-5 2-37. OPERATION ... 2-6 2-39. APPLICATIONS ... 2-6 2-41. Transistor Tester ... 2-7 2-46. Leakage Tester ... 2-8 3 THEORY OF OPERATIONS ... 3-1 3-1. INTRODUCTION ... 3-1 3-3. OVERALL FUNCTIONAL DESCRIPTION ... 3-1 3-8. BLOCK DIAGRAM ANALYSIS ... 3-2 3-9. AID Converter ... 3-2 3-18. Input Signal Conditioners ... 3-2 4 MAINTENANCE ... 4-1 4-1. INTRODUCTION ... 4-1 4-3. SERVICE INFORMATION ... 4-1 4-7. GENERAL INFORM ATION ... 4-2 4-8. Access Information ... 4-2 4-17. Cleaning ... 4-3 4-19. Battery/Fuse Replacement ... 4-3 4-21. PERFORMANCE TEST ... 4-3 4-23. initial Procedure ... 4-3 4-25. DisplayTest ... 4-3 4-27. Resistance/Conductance Test ... 4-4 4-29. DC Voltage Test ... 4-4 4-31. AC Voltage Test ... 4-4 4-33. DC Current Test ... 4-5 4-35. CALIBRATION ... 4-5 4-38. TROUBLESHOOTING ... 4-5 5 LIST OF REPLACEABLE PARTS ... 5-1 5-I. INTRODUCTION ... 5-1 5-4. HOW TO OBTAIN PARTS ... 5-1 6 OPTIONS AND ACCESSORIES ... 6-1 6-1. INTRODUCTION ... 6-1 6-3. DELUXE CARRY! NO CASE(C90) ... 6-1 6-5. BATTERY ELIMINATOR (A81) ... 6-1 6-7. TEMPERATURE PROBE(80T-I50) ... 6-2 6-8. Introduction ... 6-2 6-IÜ. Specifications ... 6-2 6-11. CURRBNTTRANSFORMER (801-600) ... 6-2 6-12. Introduction ... 6-2 6-14. Specifications ... 6-2 6-15. HIGH VOLTAGE PROBE(80K-40) ... 6-2 6-16. Introduction ... 6-2 6-18. Specifications ... 6-2 6-19. HIGH FREQUENCY PROBE(81RF) ... 6-2 6-20. Introduction ... 6-2 6-22 Specifications ... 6-2 7 SCHEMATIC DIAGRAMS ... 7-1 SERVICE CENTERS ... 7-3 SERVICE REPORT ... 7-5 WARRANTY APPENDIX A - Manual Change information