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Fluke 8012 A Digital multimeter
Manufacturer:
Model:
8012 A
Date:
1985
Class:
Type:
SubType:
Information
The Multimeters are portable bench-type digital multimeters (DMMs) with 3-1/2 digit liquid crystal displays (LCDs). The Multimeters have the following industry-standard features: • Voltage measurements from 100 μV to 1000V dc and 10 mV to 750V true-rms ac. • Current measurements from 100 nA to 2 A dc and 10 μΑ to 2A true-rms ac (up to 10A for the 8012A). • Resistance measurements from 100 mH (1 mH for the 8012A) to 20 ΜΩ. The Multimeters also have the following special measurement features: • Conductance measurements up to 10,000 ΜΩ of equivalent resistance. • Resistance ranges that supply enough voltage to turn on a PN junction for testing diodes and transistors. indication. Protection from overloads and transients up to 6 kV for 10 microseconds. Dual-slope integration a/d conversion to ensure noise-free measurements. Long term calibration stability (1 year). M. Your Multimeter is warranted for a period of one year upon shipment of the instrument to the original purchaser. Conditions of the warranty are given at the front of this manual.

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Service and User Manual
Manual type:
Service and User Manual
Pages:
93
Size:
7.44 Mbytes (7805720 Bytes)
Language:
english
Revision:
2
Manual-ID:
491944
Date:
January 1985
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
27 January 2016
MD5:
7f3632499b06687c911a5befbcdf64b7
Downloads:
435
Information
Instruction Manual 1 INTRODUCTION AND SPECIFICATIONS ... 1-1 l-l. INTRODUCTION ... l-l 1-5. OPTIONS AND Accessories ... l-l 1-7. SPECIFICATIONS ... l-l 2 OPERATION ... 2-1 2-1. INTRODUCTION ... 2-1 2-3. SETTING UP YOUR INSTRUMENT ... 2-1 2-4. Unpacking ... 2-1 2-8. AC Line Voltage Requirements ... 2-1 2-10. Fuse Replacement ... 2-1 2-13. FRONT PANEL FEATURES ... 2-2 2-15. LCD DISPLAY ... 2-2 2-18. SIGNAL INPUT LIMITS ... 2-4 2-20. OPERATING TECHNIQUES ... 2-4 2-22. AC/DC Voltage (V) ... 2-4 2-24. AC/DC Current (mA) ... 2-4 2-26. AC/DC Current (10A max, 8010A only) ... 2-4 2-28. Resistance (Ω) ... 2-4 2-30. Low Ohms Resistance (LO RANGE Ω, 8012A only) ... 2-4 2-32. Conductance (S=1H) ... 2-7 2-34. Diode Test ... 2-7 2-36. INITIAL CHECKOUT PROCEDURE ... 2-7 2-39. APPLICATIONS ... 2-8 2-41. Circuit Loading Error (Voltage) ... 2-8 2-43. Burden Voltage Error (Current) ... 2-9 2-46. Test Lead Compensation (Resistance) ... 2-9 2-49. High Resistance Measurements (Conductance) ... 2-10 2-51. Leakage Resistance Measurements (Conductance) ... 2-10 2-53. Diode Leakage Tests (Conductance) ... 2-10 2-55. Transistor Tester ... 2-12 2-65. True-RMS Measurements ... 2-13 2-69. Waveform Comparison (RMS vs Averaging Meters) ... 2-13 2-71. Waveform Crest Factors ... 2-13 2-75. Combined AC and DC Signal Measurements ... 2-15 2-77. Affects of Offset in AC Measurements ... 2-15 2-79. Bandwidth Limitations in AC Voltage Measurements ... 2-15 3 THEORY OF OPERATION ... 3-1 ) 3-1. INTRODUCTION ... 3-1 3-3. FUNCTIONAL DESCRIPTION ... 3-1 3-6. CIRCUIT DESCRIPTIONS ... 3-1 3-8. Digital Voltmeter ... 3-1 3-27. Input Signal Conditioners ... 3-4 3-44. Meter Protection Circuits ... 3-6 3-54. Power Supply ... 3-7 3-57. Touch and Hold Circuit ... 3-7 4 MAINTENANCE ... 4-1 4-1. INTRODUCTION ... 4-1 4-3. SERVICE INFORMATION ... 4-1 4-7. GENERAL INFORMATION ... 4-1 4-8. Interior Access ... 4-1 4-19. Cleaning ... 4-4 4-21. Special Test Devices ... 4-4 4-27. PERFORMANCE TEST ... 4-5 4-30. Display Test ... 4-5 4-32. Resistance/Conductance Test ... 4-5 4-34. LO RANGE Π Test (8012A only) ... 4-6 4-36. DC Voltage Test ... 4-6 4-38. RMS Converter Offset Test ... 4-6 4-40. AC Voltage Test ... 4-6 4-42. DC Current Test ... 4-6 4-44. AC Current Test ... 4-7 4-46. 10A Current Test (8010A only) ... 4-7 4-48. CALIBRATION PROCEDURE ... 4-8 4-50. Power supply Check ... 4-8 4-52. DC Calibration Adjustment ... 4-8 4-54. RMS Converter DC Offset Adjustment ... 4-9 4-56. AC Calibration Adjustment ... 4-9 4-58. LO RANGE Π Calibration Adjustment (8012A only) ... 4-9 4-60. TROUBLESHOOTING ... 4-10 5 LIST OF REPLACEABLE PARTS ... 5-1 TABLE OF CONTENTS ... 5-1 5-1. INTRODUCTION ... 5-2 5-3. PARTS ORDERING INFORMATION ... 5-2 6 OPTIONS AND ACCESSORIES ... 6-1 TABLE OF CONTENTS ... 6-1 INTRODUCTION ... 6-2 ACCESSORIES ... 600-1 OPTIONS ... 601-1 7 SCHEMATIC DIAGRAMS ... 7-1 TABLE OF CONTENTS ... 7-1

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