Fluke 43B Service Manual

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List of Tables
Table Title Page
1-1. Symbols ................................................................................................................. 1-3
2-1. No Visible Disturbance ......................................................................................... 2-10
2-2. Disturbance < 1 % ................................................................................................. 2-10
2-3. Disturbance < 10 % ............................................................................................... 2-10
3-1. Fluke 43B Main Blocks......................................................................................... 3-3
3-2. Fluke 43B Operating Modes ................................................................................. 3-8
3-3. Input 1 Voltage Ranges And Trace Sensitivity..................................................... 3-17
3-4. Ohms Ranges, Trace Sensitivity, and Current ...................................................... 3-18
3-5. Capacitance Ranges, Current, and Pulse Width.................................................... 3-19
3-6. D-ASIC PWM Signals........................................................................................... 3-27
4-1. Input 1 Frequency Measurement Accuracy Test................................................... 4-8
4-2. Volts DC Measurement Verification Points ......................................................... 4-17
4-3. Volts AC Measurement Verification Points ......................................................... 4-19
4-4. Input 1 and 2 AC Input Coupling Verification Points........................................... 4-20
4-5. Volts Peak Measurement Verification Points ....................................................... 4-21
4-6. Phase Measurement Verification Points ............................................................... 4-22
4-7. V DC and V AC High Voltage Verification Tests................................................ 4-25
4-8. Resistance Measurement Verification Points........................................................ 4-26
4-9. Capacitance Measurement Verification Points ..................................................... 4-27
4-10. Volts/AMPS/HERZ verification points ................................................................ 4-31
4-11. Power Measurement Verification points............................................................... 4-31
5-1. HF Gain Calibration Points Fast ........................................................................... 5-9
5-2. HF Gain Calibration Points Slow.......................................................................... 5-9
5-3. Volt Gain Calibration Points <300V..................................................................... 5-11
5-4. Ohm Gain Calibration Points ................................................................................ 5-13
7-1. Starting Fault Finding............................................................................................ 7-4
8-1. Final Assembly Parts............................................................................................. 8-4
8-2. Main PCA Unit...................................................................................................... 8-6
8-3. Main PCA.............................................................................................................. 8-7
9-1. Parts Location Main PCA Side 1 .......................................................................... 9-4
9-2. Parts Location Main PCA Side 2 .......................................................................... 9-5

Fluke 43B Specifications

General

Category	Power Quality Analyzer
Interface	RS-232
Volts AC/DC	Yes
Ohms	Yes
Continuity	Yes
Diode Test	Yes
Capacitance	Yes
Harmonics Measurement	Up to 51st harmonic
Display	LCD
Battery Life	Approximately 6 hours
Weight	1.1 kg (2.4 lb)
Data Storage	Yes
Amps AC/DC	0.1 to 1000 A (with clamp)
Power Measurement	W, VA, VAR, PF
Dimensions	50 mm
Current Measurement Range	Via current clamp accessories (not built-in)