Fluke 8012A User Manual

801
0A/801
2A
Digital
Multimeters
Instruction
Manual
IFLUKEI
P/N
491944
August
1978
Rev
2 1 / 85
®1985,
John Fluke
Mfg.
Co,, Inc. All rights reserved. Lithe
in
U,S.A.

Fluke 8012A Specifications

General

Type	Digital Multimeter
DC Voltage Ranges	200mV, 2V, 20V, 200V, 1000V
Resistance Ranges	200 Ω, 2 kΩ, 20 kΩ, 200 kΩ, 2 MΩ, 20 MΩ
Diode Test	Yes
Continuity Beeper	Yes
Input Impedance (DC Voltage)	10 MΩ
Input Impedance (AC Voltage)	10 MΩ
Display	3.5 digits LCD, 2000 counts
AC Voltage Ranges	200mV, 2V, 20V, 200V
DC Current Ranges	200 μA, 2 mA, 20 mA, 200 mA, 2 A
AC Current Ranges	200 μA, 2 mA, 20 mA, 200 mA, 2 A
Power Supply	9V battery

Summary

Section 1 Introduction and Specifications

1-7. SPECIFICATIONS

Detailed electrical and performance specifications for the multimeters.

Section 2 Operation

2-3. SETTING UP YOUR INSTRUMENT

Procedures for unpacking and preparing the instrument for use.

2-13. FRONT PANEL FEATURES

Description of controls, indicators, and connectors on the front panel.

2-18. SIGNAL INPUT LIMITS

2-20. OPERATING TECHNIQUES

Describes how to operate the multimeter for its primary measurement functions.

2-36. INITIAL CHECKOUT PROCEDURE

Procedure to verify general operation of multimeter functions.

2-39. APPLICATIONS

2-55. Transistor Tester

2-59. DEFECTIVE TRANSISTORS

2-61. TRANSISTOR LEAKAGE TEST

2-63. TRANSISTOR BETA TEST

2-65. True-RMS Measurements

Explanation of the true-rms measurement feature.

2-75. Combined AC and DC Signal Measurements

Section 3 Theory Of Operation

3-3. FUNCTIONAL DESCRIPTION

Describes the instrument's operation via major circuit functions.

3-6. CIRCUIT DESCRIPTIONS

Detailed discussion of the major circuits within the instrument.

3-8. Digital Voltmeter

3-11. A/D CONVERTER

3-27. Input Signal Conditioners

3-29. TRUE RMS CONVERTER

3-44. Meter Protection Circuits

Details on the protective circuits within the multimeter.

3-48. RESISTANCE/CONDUCTANCE MEASUREMENT PROTECTION

Protection circuits for resistance and conductance measurements.

3-51. CURRENT MEASUREMENT PROTECTION

Protection circuits for current measurements.

3-54. Power Supply

Information on the instrument's power supply.

Section 4 Maintenance

4-9. CALIBRATION ACCESS

4-15. FRONT PANEL REMOVAL

4-17. DISPLAY REMOVAL

4-27. PERFORMANCE TEST

Test to verify instrument performance against specifications.

4-30. Display Test

4-32. Resistance/Conductance Test

Verifying performance of resistance and conductance ranges.

4-34. LO RANGE Ω Test (8012A Only)

4-36. DC Voltage Test

Verifying operation and accuracy of the DC Voltage function.

4-38. RMS Converter Offset Test

4-40. AC Voltage Test

Verifying operation and accuracy of the AC Voltage function.

4-42. DC Current Test

Verifying operation and accuracy of the DC Current function.

4-44. AC Current Test

Verifying operation and accuracy of the AC Current function.

4-46. 10A Current Test (8010A Only)

4-48. CALIBRATION PROCEDURE

Comprehensive procedure for calibrating the multimeter.

4-50. Power Supply Check

Procedure to verify the power supply voltages.

4-54. RMS Converter DC Offset Adjustment

Procedure to adjust the RMS converter's DC offset.

4-56. AC Calibration Adjustment

Procedure to calibrate AC Voltage and AC Current functions.

4-58. LO RANGE Ω Calibration Adjustment (8012A Only)

Procedure to calibrate the LO RANGE Ω function.

4-60. TROUBLESHOOTING

Guide for diagnosing and resolving instrument problems.

Section 6 Options and Accessories

600-16. PROBE ACCESSORIES

601-3. SPECIFICATIONS

601-5. OPERATION

Operational procedures for the battery option.

601-15. MAINTENANCE

Maintenance instructions for the battery option.

601-18. Fuse Replacement

601-20. AC Line Voltage Selection

601-24. POWER SUPPLY CHECK

Procedure to verify the power supply voltages.