Fluke 45 Dual Display Multimeter Service Manual – Repair & Calibration PDF

Description

Fluke 45 Dual Display Multimeter Service Manual – Repair & Calibration PDF DOWNLOAD

PRODUCT DESCRIPTION

This is the factory service and repair manual used by Fluke-authorized technicians to diagnose, test, calibrate, repair, and certify the Fluke 45 Dual Display Digital Multimeter.

It provides:

• Complete theory of operation

• Measurement circuit analysis

• Complete calibration procedure

• Full disassembly / reassembly steps

• Troubleshooting flowcharts

• Schematics & PCB board layouts

• Replaceable component parts list

Ideal for:

• Instrument repair labs

• Calibration & metrology facilities

• Test equipment service engineers

• Electronics technicians / educators

1 Introduction and Specifications 1-1
1-1 Introduction 1-3
1-2 Operating Instructions 1-6

2 Theory of Operation 2-1
2-1 Introduction 2-3
2-2 Functional Block Description 2-14
2-25 AC Volts 2-14
2-26 DCmA 2-15
2-27 ACmA 2-17
2-28 Resistance Measurement 2-18
2-29 Continuity & Diode Measurement 2-19
2-30 Microprocessor & Display Logic 2-22
2-31 Power Supply Circuit 2-25

3 General Maintenance 3-1
3-1 Introduction 3-3
3-2 Warranty Repairs and Shipping Information 3-11
3-31 Install the IEEE-488 Option 3-12

4 Calibration Procedures 4-1
4-1 Introduction 4-3
4-2 Required Test Equipment 4-5
4-3 Front Panel Calibration Method 4-7
4-4 Internal Adjustment Procedure 4-14
4-5 Verification Tests 4-21
4-6 Threshold Calibration (Front Panel) 4-23

5 Disassembly and Repair Procedures 5-1
5-1 Required Tools 5-3
5-2 Case Removal 5-6
5-3 PCB Removal / Installation 5-9
5-4 Fuse Replacement 5-12
5-5 Internal Display & Keypad Service 5-14
5-6 Display Assembly Troubleshooting 5-17
5-7 Calibration Failure Recovery 5-21

6 List of Replaceable Parts 6-1
6-1 Introduction 6-3
6-2 How to Obtain Parts 6-4

7 Option -01 Battery Pack 7-1
7-1 Introduction 7-3
7-2 Specifications 7-14

8 Option -05 IEEE-488 Interface 8-1
8-1 Introduction 8-3
8-2 Theory of Operation 8-9
8-13 Performance Testing 8-9
8-14 Troubleshooting 8-12

9 Schematic Diagrams 9-1

Index

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