Fluke 43B Service Manual

43B
Service Manual
ii
3.3.4 Digital Circuit ...................................................................................... 3-24
4 Performance Verification ................................................................... 4-1
4.1 Introduction................................................................................................. 4-3
4.2 Equipment Required For Verification ........................................................ 4-3
4.3 How To Verify ............................................................................................ 4-3
4.4 Display and Backlight Test ......................................................................... 4-4
4.5 Input 1 and Input 2 Tests in the SCOPE MODE. ....................................... 4-5
4.5.1 Input 1 Trigger Sensitivity Test........................................................... 4-6
4.5.2 Input 1 Frequency Response Upper Transition Point Test.................. 4-7
4.5.3 Input 1 Frequency Measurement Accuracy Test ................................. 4-7
4.5.4 Input 2 Frequency Measurement Accuracy Test ................................. 4-9
4.5.5 Input 2 Trigger Level and Trigger Slope Test..................................... 4-10
4.5.6 Input 2 Trigger sensitivity Test............................................................ 4-12
4.5.7 Input 1 Trigger Level and Trigger Slope Test..................................... 4-13
4.5.8 Input 1 and 2 DC Voltage Accuracy Test............................................ 4-15
4.5.9 Input 1 and 2 AC Voltage Accuracy Test............................................ 4-17
4.5.10 Input 1 and 2 AC Input Coupling Test .............................................. 4-19
4.5.11 Input 1 and 2 Volts Peak Measurements Test ................................... 4-20
4.5.12 Input 1 and 2 Phase Measurements Test............................................ 4-21
4.5.13 Input 1 and 2 High Voltage AC & DC Accuracy Test ...................... 4-22
4.6 Ohms/Continuity/Capacitance. ................................................................... 4-25
4.6.1 Resistance Measurements Test............................................................ 4-25
4.6.2 Diode Test Function Test .................................................................... 4-26
4.6.3 Continuity Function Test ..................................................................... 4-26
4.6.4 Capacitance Measurements Test ......................................................... 4-27
4.7 Inrush Current. ............................................................................................ 4-28
4.8 Sags & Swells ............................................................................................. 4-29
4.9 Harmonics. .................................................................................................. 4-30
4.10 VOLT/AMPS/HERTZ. ............................................................................. 4-30
4.11 POWER..................................................................................................... 4-31
4.12 Transients.................................................................................................. 4-32
5 Calibration Adjustment ...................................................................... 5-1
5.1 General ........................................................................................................ 5-3
5.1.1 Introduction.......................................................................................... 5-3
5.1.2 Calibration number and date................................................................ 5-3
5.1.3 General Instructions............................................................................. 5-4
5.2 Equipment Required For Calibration.......................................................... 5-4
5.3 Starting Calibration Adjustment ................................................................. 5-4
5.4 Contrast Calibration Adjustment ................................................................ 5-6
5.5 Warming Up & Pre-Calibration.................................................................. 5-7
5.6 Final Calibration ......................................................................................... 5-7
5.6.1 HF Gain Input 1. .................................................................................. 5-8
5.6.2 Delta T Gain, Trigger Delay Time & Pulse Adjust Input 1................. 5-9
5.6.3 Gain DMM (Gain Volt)....................................................................... 5-10
5.6.4 Volt Zero.............................................................................................. 5-12
5.6.5 Gain Ohm............................................................................................. 5-12
5.6.6 Capacitance Gain Low and High......................................................... 5-13
5.6.7 Capacitance Clamp & Zero.................................................................. 5-14
5.6.8 Capacitance Gain................................................................................. 5-14
5.7 Save Calibration Data and Exit................................................................... 5-15
6 Disassembling .................................................................................... 6-1

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)