HP Q METER 4342A - User Manual

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4342A Q-meter Operating and Service Manual
04342-90009
March 1983

HP Q METER 4342A Specifications

General

Brand	HP
Model	Q METER 4342A
Category	Measuring Instruments
Language	English

Summary

SECTION I GENERAL INFORMATION

How The 4342 A Measures

Explains the basic measurement principle of the Q Meter.

SPECIFICATIONS

Lists the complete performance standards and limits for the 4342A.

ACCESSORIES AVAILABLE

Describes optional accessories that enhance measurement capabilities.

OPTIONS

Explains standard modifications performed at the factory.

SECTION II INSTALLATION

INITIAL INSPECTION

Details the process of inspecting the instrument upon receipt.

PERFORMANCE CHECKS

Guides on verifying electrical performance upon receipt.

POWER CONNECTION

Details how to connect the instrument to a power source.

SECTION III OPERATION

Q MEASUREMENT-GENERAL

Explains the general principles of Q measurement using the instrument.

HOW TO CONNECT UNKNOWN

Outlines the three basic methods for connecting unknown samples.

Capacitance Measurement

Describes methods for measuring capacitance of samples.

High Q Measurement

Explains how to measure high quality factors up to 10000.

BASIC Q METER MEASUREMENTS

Outlines fundamental Q meter measurements.

Inductance Measurement

Describes how to measure inductance directly from the Q meter scale.

CORRECTION FOR Q

Details how to correct Q values for distributed capacitance effects.

PARALLEL AND SERIES CONNECTION MEASUREMENT METHODS

Covers methods for parallel and series connection measurements.

Dielectric Measurement

Describes measuring dielectric constant and loss of materials.

SERIES MEASUREMENTS

Covers procedures for series connection measurements.

Low Resistance Measurement

Details how to measure low resistance values.

SECTION IV THEORY OF OPERATION

Q DETERMINATION AND MEASUREMENT

Explains how Q is determined and measured.

SIMPLIFIED BLOCK DIAGRAM

Presents a simplified block diagram of the Q Meter.

OSCILLATOR AND IMPEDANCE CONVERTER (AlAll

Details the function of the oscillator and impedance converter circuits.

RF AMPLIFIER AND DETECTOR(A5)

Explains the RF amplifier and detector assembly.

CIRCUIT DETAILS

Introduces the detailed circuit descriptions.

SECTION V MAINTENANCE

PERFORMANCE CHECKS

Outlines performance checks for the instrument.

FREQUENCY ACCURACY CHECK

Details the procedure for checking frequency accuracy.

CAPACITANCE ACCURACY CHECK

Describes how to check capacitance accuracy.

ADJUSTMENT AND CALIBRATION PROCEDURES

Provides complete procedures for adjusting and calibrating the instrument.

POWER SUPPLY ADJUSTMENT

Details the procedure for adjusting the power supply voltages.

OSCILLATOR FREQUENCY ADJUSTMENT

Details the procedure for adjusting the oscillator frequency.

Q VOLTMETER ADJUSTMENT

Covers adjustments for the Q voltmeter gain and linearity.

TROUBLESHOOTING GUIDES

Provides guidance for troubleshooting faulty circuits.

Incorrect Q Meter Indication

Helps isolate problems causing incorrect Q meter indications.

SECTION VI REPLACEABLE PARTS

INTRODUCTION

Introduces the section on replaceable parts.

Table 6-1. List of Reference Designators and Abbreviations

Lists reference designators and abbreviations used in the manual.

Table 6-2. Reference Designation Index

Provides an index of reference designations for parts.

SECTION VIII CIRCUIT DIAGRAMS

INTRODUCTION

Introduces the circuit diagrams section.

Circuit diagrams of Option 001 are given in APPENDIX.

Notes that Option 001 diagrams are in the appendix.

GENERAL NOTES

Provides general notes applicable to schematic diagrams.

APPENDIX OPTION 001

REPLACEABLE PARTS

Lists replaceable parts specific to Option 001.

MANUAL CHANGES

Information on manual adaptations for different serial numbers and options.

CHANGE 1

Details the first set of changes to the manual for specific serial prefixes.

CHANGE 3

Details the third set of changes to the manual for specific serial prefixes.

CHANGE 4

Details the fourth set of changes to the manual for specific serial prefixes.

CHANGE 5

Details the fifth set of changes to the manual for specific serial prefixes.