Agilent 4294A Operations Guide

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Agilent 4294A Precision Impedance Analyzer

Operation Manual

Third Edition

SERIAL NUMBERS

This manual applies directly to instruments that have

the serial number prefix JP1KG. For additional important

information about serial numbers, see Appendix A.

Part No. 04294-90020

December 1999

Printed in: Japan

Notices

The information contained in this document is subject to change without notice. This document contains propr ietar y infor mation t hat is pr otect ed by copyri ght. All

rights are reserved. No part of this document may be photocopied, reproduced, or translated into another language without the prior written consent of Agilent Technologies.

Manual Printing History

The manual’s printing date and part number indicate its current edition. The printing date changes when a new edition is printed. (Minor corrections and updates incorporated in reprints do not necessitate a new printing date.) The manual part number changes when extensive technical changes are incorporated.

April 1999 First Edition May 1999 Second Edition December 1999 Third Edition

Safety Summary

The following general safety precautions must be observed during all phases of operation, service, and repair of this instrument. Failure to comply with these precautions or with sp ecific WARNINGS el sewhere in t his manual may impai r the protection provided by the equipment. Such noncompliance would also violate safety standards of design, manufacture, and intended use of the instrument.

The Agilent T echnologies assumes no liability for the customer’s failure to comply with these requirements.

NOTE The Agilent 4294A complies with INSTALLATION CATEGORY II and

POLLUTION DEGREE 2 in IEC61010-1. The Agilent 4294A is an INDOOR USE product.

NOTE LEDs in the Agilent 4294A are Class 1 in accordance with IEC60825-1,

CLASS 1 LED PRODUCT.

• Ground the Instrument To avoid electric shock, the instrument chassis and cabinet must be grounded

with the supplied power cable’s grounding prong.

• DO NOT Operate in an Explosive Atmosphere Do not operate the instrument in the presence of inflammable gasses or fumes.

Operation of any electrical instrument in such an environment clearly constitutes a safety hazard.

• Keep Away from Live Circuits Operators must not remove instrument covers. Component replacement and

internal adjust ments mu st be made by quali fied mai ntenan ce pers onne l. Do not replace components with the power cable connected. Under certa in conditions, dangerous voltage levels may exist even with the power cable removed. To avoid injuries, always disconnect the power and discharge circuits before touching them.

• DO NOT Service or Adjust Alone Do not attempt internal servi ce or adj ustment unles s anothe r pers on, capab le of

rendering first aid and resuscitation, is present.

• DO NOT Su bstitute Part s or Modify the Instrument To avoid the danger of introducing additional hazards, do not install substitute

parts or perform unauthorized modifications to the instrument. Return the instrument to an Agilent Technologies S ales and Ser vice Of fi ce for ser vice and repair to ensure that safety features are maintained in operational condition.

• Dangerous Procedure Warnings Warnings, such as the example below, precede potentially dangerous

procedures throu ghout this manual . Instruct ions contain ed in the war nings must be followed.

WARNING Dangerous voltage levels, capable of causing death, are present in this

instrument. Use extreme caution when handling, testing, or adjusting this instrument.

Safety Symbols

General definitions of safety symbols used on the instrument or in manuals are listed belo w.

Instruction Manual symbol: the product is marked with this symbol when it is necessary for the user to refer to the instrument manual.

Alternating current. Direct current. On (Supply). Off (Supply). In-position of push-button switch. Out-position of push-button switch. Frame (or chassis) t ermi nal . A c onne ction to the frame (chassis) of the e qui pment ,

which normally includes all exposed metal structure.

WARNING This warning sign denotes a h azard. It ca lls atte ntion to a pr ocedu re, pr actice,

or condition that, if not correctly performed or adhered to, could result in injury or death to personnel.

CAUTION This Caution sign denotes a hazard. It calls attention to a procedure, practice, or

condition that, if not correctly performed or adhered to, could result in damage to or destruction of part or all of the product.

NOTE This Note sign denotes important information. It calls attention to a procedure,

practice, or condition that is essential for the user to understand.

Certification

Agilent Technologies certifies that this product met its published specifications at the time of shipment from the factory. Agilent Technologies further certifies that its calibration mea surements a re trace able to th e United S tates National I nstitut e of Standards and Technology, to the extent allowed by the Institution’s calibration facility or by the calibration fac ilities of other Intern ational S tandards Or ganizati on members.

Warranty

This Agilent Technologies instrument product is warranted against defects in material and workmanship for a period corresponding to the individual warranty periods of its component products. Instruments are warranted for a period of one

year. Fixtures and adapters are warranted for a period of 90 days. During the warranty period, Agilent Technologies will, at its option, either repair or replace products that prove to be defective.

For warranty service or repair, this product must be returned to a service facility designated by Agilent Technologies. Buyer shall prepay shipping charges to Agilent Technologies and Agilent Technologies shall pay shipping charges to return the produ ct to Buyer. However , Buyer shall pay a ll sh ipping char ge s, d uties , and taxes for products returned to Agilent Technologies from another country.

Agilent Technologies warrants that its software and firmware designated by Agilent Technologies for use with an instrument will execute its programming instruction when properly installed on that instrument. Agilent Technologies does not warrant that the operation of the instrument, or software, or firmware will be uninterrupted or error free.

Limitation of Warranty

The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer, Buyer-supplied software or interfacing, unauthorized modification or misuse, operation outside the environmental specifications for the product, or improper site preparation or maintenance.

IMPORTANT No other warranty is expressed or implied. Agilent Technologies specifically

disclaims the implied warranties of merchantability and fitness for a particular purpose.

Exclusive Remedies

The remedies provided herein are Buyer’s sole and exclusive remedies. Agilent Technologies shall not be liable for any direct, indirect, special, incidental, or consequential damages, whether based on contract, tort, or any other legal theory.

Assistance

Product maintenance agreements and other customer assistance agreements are available for Agilent Technologies products.

For any assistance, contact your nearest Agilent Technologies Sales and Service Office. Addresses are provided at the back of this manual.

Typeface Conventions

Bold Boldface type is use d when a term is defined.

For example: icons are symbols.

Italic Italic type is used for emphasis and for titl es

of manuals and other publications.

[Hardkey] Indicates a hardkey labeled “Hardkey.” Softkey Indicates a softkey labeled “Softkey.” [Hardkey] - Softkey1 - Softkey2 Indicates keystrokes [Hardkey] - Softkey1 -

Softkey2.

Agilent 4294A Documentation Map

The following manuals are available for the Agilent 4294A.

• Operation Manual (Agilent P/N: 04294-900x0)

Most of the basic information necessary for using the Agilent 4294A is provided in this manual. It describes installation, preparation, measurement operation including calibration, performances (specifications), key definitions, and error messages. For GP-IB programming, see the Programming Manual together with HP Instrument BASIC User's Handbook.

• Programming Manual (Agilent P/N: 04294-900x1)

The Programming Manual shows how to write and use BASIC program to control the Agilent 4294A and describes how HP Instrument BASIC works with the analyzer.

• HP Instrument BASIC User's Handbook (Agilent P/N: E2083-90005)

The HP Instrument BASIC User’s Handbook introduces you to the HP Instrument BASIC programming language, provides some helpful hints on getting the most use from it, and includes a general programming reference. It is divided into three books: HP Instrument BASIC Programming Techniques,

HP Instrument BASIC Interface Techniques, and HP Instru ment BASIC Language Reference.

• Service Manual (Agilent P/N: 04294-90100, Option 0BW only)

This manual explains how to adjust and repair the Agilent carry out performance tests. This manual is attached when Option 0BW is ordered.

4294A and how to

NOTE The number of “x” i n t he par t number of each manual (Agilent P/N), 0 f or the first

edition, is incremented by 1 each time a revision is made.

Contents

1. Installation

Incoming Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Precautions to Take Before Setting Up the Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Setting Up and Replacing the Fuse. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Power Source Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Power Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Connecting the BNC Adapter (for Option 1D5 Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Using the LAN Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Connecting the Supplied Keyboard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Using a Rackmount Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Option 1CN Handle Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Option 1CM Rackmount Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Option 1CP Rackmount & Handle Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Ventilation Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Instructions for Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

2. Learning Operation Basics

Required Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Preparing for a Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Connect the Agilent 16047E Test Fixture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Turn ON the Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Set the Adapter Type to “NONE” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Specifying Measurement Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Initialize the Agilent 4294A to the Preset State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Select |Z|-θ as the Measurement Parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Select Frequency as the Sweep Parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Select Logarithmic Sweep as the Sweep Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Set the Sweep Start Value to 100 Hz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Set the Sweep Stop Value to 100 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Set the Measurement Bandwidth to 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Fixture Compensation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Perform Fixture Compensation for the Open Circuit State. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Perform Fixture Compensation for the Short Circuit State. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Carrying Out Measurement and Viewing Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Connect the DUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Apply the Logarithmic Format to the Vertical Axis for |Z|. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Apply the Linear Format to the Vertical Axis for θ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Display the Measured |Z| and θ Values in Parallel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Auto-scale the |Z| Trace. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Auto-scale the θ Trace. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Results of Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Determine the Self-resonance Frequency and Resonant Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

3. Front/Rear Panel and LCD Display

Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Hardkeys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

1. ACTIVE TRACE block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Contents

2. MEASUREMENT Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

3. STIMULUS Block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

4. ENTRY Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

5. MARKER Block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

6. INSTRUMENT STATE Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

7. Softkeys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

8. Color LCD Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

9. Power Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

10. UNKNOWN Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

11. Built-in 3.5 Inch Floppy Disk Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Rear Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

1. External Reference Input Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

2. High Stability Frequency Reference (Option 1D5 Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

3. External Trigger Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

4. LAN Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

5. Internal Reference Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

6. External Program RUN/CONT Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

7. 8-bit I/O Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

8. Time Base Adjuster (for Option 1D5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

9. Mini-DIN Keyboard Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

10. 24-bit I/O Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

11. Printer Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

12. External Monitor Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

13. GPIB Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

14. Inlet (with a fuse box). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Items Displayed on the LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

1. Measurement Parameter Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

2. Scale/Reference Fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

3. Marker Measurement Parameter Value Fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

4. Menu Title Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

5. Softkey Label Area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

6. Sweep Parameter Reading Fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

7. Marker Status Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

8. Marker Statistics/Trace Bandwidth Analysis Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

9. Limit Line Test Fields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

10. HP Instrument Basic Status Indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

11. dc Voltage/Current Bias Monitor Field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

12. Sweep Stop/Span Value Field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

13. Test Signal Current Level Monitor Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

14. Test Signal Level/CW Frequency Setting Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

15. Test Signal Voltage Level Monitor Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

16. Sweep Start/Center Value Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

17. Instrument Status Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

18. Equivalent Circuit Parameters Field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

19. External Reference Input Status Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

20. Parameter Setting/Instrument Message Field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

21. Title Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

4. Preparation of Measurement Accessories

Contents

Selecting Accessories for Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Connecting the Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Adapter Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Adapter Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Adapter Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Adapter Setup Procedure for the 16048G and 16048H. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Adapter Setup Procedure for the 16334A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Adapter Setup Procedure for the 16451B. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Adapter Setup Procedure for the 42942A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Adapter Setup Procedure for the 42941A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

5. Setting Measurement Conditions

Putting the Agilent 4294A into the Preset State (Presetting) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Selecting Trace (Active Trace) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Selecting Sweep Parameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Selecting Linear, Log, or List Sweep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Setting Sweep Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Setting by start and stop values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Setting by center and span values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Setting sweep range with marker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Using Time as Sweep Parameter (Zero Span Sweep) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Setting Number of Points (NOP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Selecting Sweep Direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Manual Sweep (Measurement at a Specified Point) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Setting Time Delay for Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Setting with sweep time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Setting with time delay at measurement point. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Setting with sweep time delay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Setting Fixed Frequency (CW Frequency). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Setting Oscillator Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Selecting Unit for Oscillator Level (Voltage or Current) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Setting and Applying dc Bias. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

1. Selecting dc bias mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

2. Setting fixed dc bias level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

3. Setting limits for dc voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

4. Setting dc bias range to 1 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

5. Turning dc bias ON or OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

6. Optimizing dc bias range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Selecting a Method to Start Measurement (Trigger Source) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Selecting Sweep Trigger/Measurement Point Trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Selecting Polarity of External Trigger Input Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Specifying Sweep Times and Stopping Sweep. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Single sweep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Sweep by specified times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Sweep with unlimited times (continuous sweep) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Stopping sweep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Sweeping Multiple Sweep Ranges with Different Conditions in a Single Action (List Sweep) . . . . . . . . 116

Preparing list sweep table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Selecting the list sweep as the sweep type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

Contents

Setting the Horizontal Axis of the Graph for the List Sweep. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

Setting Measurement Accuracy, Stability, and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Setting measurement bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Averaging between sweeps (sweep-to-sweep averaging) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Averaging for each measurement point (point averaging) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

6. Calibration

Selecting Appropriate Calibration Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

A. Calibration When Using Direct Connection Type Test Fixture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

B. Calibration for Four-Terminal Pair, 1-m Extension. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Fixture Compensation When the 16451B is Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

C. Calibration for Four-Terminal Pair, 2-m Extension. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

D. Calibration When an Exclusive Fixture is Connected to the 42942A. . . . . . . . . . . . . . . . . . . . . . . . . . 139

E. Calibration When the 7-mm Port of the 42942A is Extended. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

F. Calibration When a Probe Adapter is Connected to the 42941A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

G. Calibration When the 3.5-mm Port of the 42941A is Extended . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

User Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

User Calibration Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

Turning User Calibration On/Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

Defining Standard Values for User Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

Port Extension Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

Fixture Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

Fixture compensation procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

Turning the fixture compensation on or off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Defining the standard values for fixture compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Selecting Calibration/Compensation Data Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

List of fixed calibration/compensation frequency points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

7. Setting Up the Display of Measurement Results

Selecting the Measurement Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158

Selecting the Graph Axis Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

When Using Cartesian Coordinates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

When Using Complex Parameters (COMPLEX Z-Y) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162

Auto-scaling the Trace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

Manual Scale Setting (for measurements other than COMPLEX Z-Y). . . . . . . . . . . . . . . . . . . . . . . . . . . 166

Scaling the Trace Based on the Reference Line and Resolution per Division . . . . . . . . . . . . . . . . . . . . 166

Scaling the Trace Based on the Top and Bottom Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

Manually Scaling the Active Trace for a COMPLEX Z-Y Graph. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

Scaling the Active Trace for a Complex Plane. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

Scaling the Active Trace for a Polar Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175

Selecting the Target Trace Type (Data or Memory). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Enabling or Disabling Coupled Scaling Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178

Trace-based Comparison and Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179

Identifying Differences between Data and Memory Traces through Comparison or Calculation. . . . . 179

Subtracting an Offset Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

Superimposing Multiple Traces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185

Comparing traces using the list sweep function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186

Monitoring the Test Signal Level (AC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

Contents

Monitoring the Test Signal Level on a Real-time Basis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

Using the Marker Feature to Determine the Test Signal Level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190

Monitoring the dc Bias Level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Monitoring the dc Bias Level on a Real-time Basis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Using the Marker Feature to Determine the dc Bias Level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

Selecting the Phase Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197

Displaying Phase Values without Wrapping at ±180° . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198

Hiding the Non-active Trace. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199

Splitting the Graph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200

Configuring the Screen Assignments for HP Instrument BASIC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202

Adding a Title to the Measurement Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205

Customizing Intensity and Color Settings for Screen Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207

Setting the Foreground Intensity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207

Adjusting the Background Intensity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207

Customizing the Color of Each Screen Item. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208

Resetting All Items to Factory Default Colors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210

8. Analysis and Processing of Result

Specify the sweep parameter value and read the value on the trace. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212

Listing data at several points on the trace. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214

Displaying several marker positions using softkey labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214

Listing the marker positions with the marker list function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

Reading the difference from the reference point on the screen (delta marker) . . . . . . . . . . . . . . . . . . . . . 217

Placing the delta marker on the reference point with the main marker. . . . . . . . . . . . . . . . . . . . . . . . . . 217

Moving the delta marker alone to place it at a reference point. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218

Displaying the main/sub-marker and reading the difference from the reference point. . . . . . . . . . . . . . 219

Reading actual measurement points only/reading interpolated values between measurement points . . . . 222

Search the maximum/minimum measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223

Search the point of target measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225

Search the maximum/minimum peak. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228

Define the Peak. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232

Definition of peak polarity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232

Define peak sharpness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233

Define peak sharpness using a peak on the trace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233

Automatically performing search for each sweep (search tracking) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

Analyze trace bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236

Definitions of parameters in the trace bandwidth analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236

Define the cutoff point in trace bandwidth analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238

Setting the delta marker in the trace bandwidth analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239

Implement trace bandwidth analysis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240

Set the marker separately for either trace A or B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243

Selecting target trace (data or memory) for marker analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244

Selecting the sweep parameter value of the marker display as time from start or relaxation time . . . . . . 245

Clearing (turning off) the marker from the screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247

Turning off the sub-markers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247

Turning off the delta marker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247

Turning off all (main/sub/delta) markers at one time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248

Calculate the equivalent circuit parameter and simulate the frequency characteristics . . . . . . . . . . . . . . . 249

Calculate the equivalent circuit parameter based on the measurement result. . . . . . . . . . . . . . . . . . . . . 249

Contents

Simulate the frequency characteristics based on the equivalent circuit parameter. . . . . . . . . . . . . . . . . 252

Calculating the mean value, standard deviation, and peak-to-peak of the trace . . . . . . . . . . . . . . . . . . . . 254

Set a limit to the trace and make pass/fail evaluation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256

Set the limit line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256

Conduct the limit line test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262

Move the limit line in vertical and horizontal directions on the screen . . . . . . . . . . . . . . . . . . . . . . . . . 264

Specify partial search range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267

When sweep type is other than list sweep:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267

When the sweep type is list sweep: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269

Save and Recall the Agilent 4294A Internal Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270

Agilent 4294A internal data flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270

Save the setting state, calibration data and memory array (State Save) . . . . . . . . . . . . . . . . . . . . . . . . . 271

Save the calibration data and trace data (Data Save) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273

Save the display screen (Graphic Save) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275

Overwrite on the file to be saved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277

Create a file for automatic setting when power is on. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278

Recall the saved file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279

Print the measurement results and internal data with a printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281

Set the print form (color, resolution and how to handle the paper) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281

Print the measurements in graphic representation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283

Print the measurements and settings (text). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283

9. Setting/Using Control and Management Functions

Re-displaying an Instrument Message .......................... 288 Setting/Checking the Internal Clock ...........................289

Setting/Checking the Date ..............................289 Setting/Checking the Time ..............................290

Setting the Built-in Speaker (Beep Sound) ........................292

Turning On/Off the Completion Beep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292

Turning On/Off the Warning Beep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292

Managing Files...................................294

Creating a Directory ................................294 Copying a File...................................296 Deleting a File or Directory .............................299 Initializing a Recording Medium ...........................300

Setting/Checking the GP-IB..............................302

Switching between the System Controller Mode and Addressable-only Mode ..........302 Setting/Checking the GP-IB address ..........................302

Setting/Checking the LAN ...............................304

Setting/Checking the IP Address ...........................304 Setting/Checking the Gateway Address .........................305 Setting/Checking the Subnet Mask...........................307 Checking the MAC Address.............................308

Checking the Firmware Version.............................309

Checking by Key Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309

Checking by Powering On Again. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309

Performing Self-Diagnosis of the Agilent 4294A ......................310

Performing the Internal Tests in a Batch Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310

Checking the Result of Each Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310

Contents

10. Specifications and Supplemental Performance Characteristics

Basic Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314

Measurement Parameter ...............................314

Measurement Terminal ...............................314

Source Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314

dc Bias Function ..................................316

Sweep Characteristics ................................318

Measurement Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

Trigger Function ..................................319

Measurement Bandwidth/Averaging..........................319

Adapter Setup ...................................320

Calibration....................................320

Measurement Accuracy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

Display Functions .................................332

Marker Functions .................................333

Equivalent Circuit A nalysis .............................334

Limit Line Test ..................................334

Mass Storage...................................334

Parallel Printer Port.................................334

GPIB ......................................335

HP Instrument BASI C................................335

8-Bit I/O Port...................................335

24-bit I/O Port (Handler Interface) ...........................335

LAN Interface ...................................337

General Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338

External Reference Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338

Internal Reference Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338

High Stability Frequency Reference Output (Option 1D5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338

External Trigger Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338

External Program RUN/CONT Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339

External Monitor Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339

Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339

Non-operating Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340

Other Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340

Furnished Accessories ................................343

A. Manual Changes

Manual Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346

B. Key Definitions

Functions of hardkeys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348

Softkeys displayed by pressing the [Meas] key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351

Softkeys displayed by pressing the [Format] key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353

Softkeys displayed by pressing the [Display] key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354

Softkeys displayed by pressing the [Scale Ref] key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361

Softkeys displayed by pressing the [Bw/Avg] key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364

Softkeys displayed by pressing the [Cal] key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366

Softkeys displayed by pressing the [Sweep] key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371

Contents

Softkeys displayed by pressing the [Source] key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376

Softkeys displayed by pressing the [Trigger] key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 378

Softkeys displayed by pressing the [Marker] key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380

Softkeys displayed by pressing the [Marker→] key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383

Softkeys displayed by pressing the [Search] key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385

Softkeys displayed by pressing the [Utility] key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 390

Softkeys displayed by pressing the [System] key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392

Softkeys displayed by pressing the [Local] key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403

Softkeys displayed by pressing the [Copy] key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405

Softkeys displayed by pressing the [Save] key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409

Softkeys displayed by pressing the [Recall] key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 415

C. Error messages

Error Messages (alphabetical order). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 418

1 Installation

This chapter contains installation and setup instructions for the Agilent 4294A Precision Impedance Analyzer. For information on connecting test accessories such as a test fixture, adapter, probe, or measurement cable, refer to Chapter 4 , “Preparation of Measurement Accessories.”

Installation

Incoming Inspection

WARNING To avoid hazardous electrical shock, do not turn on the Agilent 4294A if there are

signs of shipping damage to any portion of the outer enclosure (for example, covers, panel, or display).

Check the shipping container for damage. If the shipping container or cushioning material is damaged, it should be kept until the contents of the shipment have been checked for completeness and the Agilent 4294A has been checked mechanically and electrically. The contents of the shipment should be as listed in Table 1-1.

If the contents are incomplete, there is any mechanical damage or defect, or the analyzer's power-on self-test fails, contact the nearest Agilent Technologies office. If the shipping container is damaged or the cushioning material shows signs of unusual stress, notify the carrier as well as the Agilent Technologies office. Save the shipping materials for the carrier's inspection.

Table 1-1 Contents of the Agilent 4294A package

Agilent

product/part

number

Description Quantity

4294A 4294A Precision Impedance Analyzer 1 04294-900x0 Operation Manual (this guide) 1 04294-900x1 Programming Manual 1 E2083-90005 HP Instrument BASIC User's Handbook 1 04294-901x0

Service Manual

04294-180x0 Sample Program Disk (3.5-inch floppy disk) 1 04294-61001 100 Ω resistor (for adapter s etup) 1 C3757-60401

Mini-DIN keyboard

8120-4753 Power Cable 1 1250-1859

5062-3991

5062-3979

BNC Adapter

Handle Kit

Rack Mount Kit

5062-3985

Rack Mount & Handle Kit

1. The number of “x” in the part number of each manual or sample program disk, 0 for the first edition, is incremented by 1 each time a r evision is made. The latest edition comes with the product.

2. No t supplied unless the product is purchased with Option 0BW.

3. Not supplied if the product is purchased with Option 1A2 (without keyboard).

18 Chapter 1

Installation

Incoming Inspection

4. No t supplied unless the product is purchased with option ID5 (High Stability Frequency Reference)

5. No t supplied unless the product is purchased with Option 1CN.

6. Not supplied unless the product is purchased with option 1CM.

7. Not supplied unless the product is purchased with Option 1CP.

Chapter 1 19

Installation

Precautions to Take Before Setting Up the Power Supply

Before supplying electrical power to the Agilent 4294A, make sure that the correct fuse is selected. Be sure to use a power source that meets the specifications listed later in this section.

Setting Up and Replacing the Fuse

The Agilent 4294A requires the following fuse:

UL/CSA type, time delay, 5 A 250 Vac (Agilent part number 2110-0030)

Spare fuses are available from your nearest Agilent Te chnologies Sales and Service Office. You can check and replace the fuse by dismounting the fuse folder shown in Figu re 1- 1 . To dismount the fuse holder, first disconnect the power cable, then use a flat-blade screwdriver or similar tool to push the por tio n mar ked “a” in Figu re 1 -1 upward so that the holder surface rises up a little, and finally pull off the holder.

Figure 1-1 Fuse holder and power inlet

Power Source Requirements

The Agilent 4294A requires a power source that meets the following specifications. Voltage: 90 to 132 Vac or 198 to 264 Vac (auto select) Frequency: 47 to 63 Hz Power consumption: 300 VA (max)

20 Chapter 1

Installation

Power Cable

In accordance with international safety standards, the Agilent 4294A uses a three-wire power cable. When connected to an appropriate ac power outlet, this cable grounds the instrument frame through one of the three wires.

The type of power cable shipped with each instrument depends on the country of destination. Refer to Figure 1-2 for the part numbers of the power cables available.

WARNING For protection against electrical shock, the power cable grounding prong must not be

removed. The power plug must be plugged into an outlet that provides an appropriate

receptacle for the ground connection.

Chapter 1 21

Installation

Power Cable

Figure 1-2 Alternative Power Cable Options

22 Chapter 1

Connecting the BNC Adapter (for Option 1D5 Only)

When Option 1D5 is installed, connect the BNC cable that comes with this option between the REF OVEN and EXT REF INPUT connectors on the rear panel of the Agilent 4294A. Option 1D5 makes the frequency of the Agilent 4294A’s test signal both more stable and more accurate.

Figure 1-3 Connecting the BNC Adapter (for Option 1D5 Only)

Installation

Chapter 1 23

Installation

Using the LAN Port

You can connect the Agilent 4294A to a local area network by using the RJ-45J UTP (Unshielded Twisted Pair) LAN connector provided on the rear panel.

Step 1. To connect the 4294A to a LAN, securely insert the LAN cable into the LAN port. Step 2. For the 4294A to communicate over a LAN, you must set up the network connection as

described in the section “Using LAN” in the “Programming Manual.”

Figure 1-4 Using the LAN Port

24 Chapter 1

Installation

Connecting the Supplied Keyboard

Step 1. Insert the cable of the supplied Mini-D IN keyboard into the key board connector on the rear

panel.

Step 2. Set the keyboard in a comfortable position.

NOTE Do not put anything on the keyboard. Doing so can cause an error during the power-on

self-test.

Figure 1-5 Connecting the Supplied Keyboard

1. The Agilent 4294A does not co me with a keyboard if it is purchased with Option 1A 2 (without keyboard) .

Chapter 1 25

Installation

Using a Rackmount Kit

If you want to combine the Agilent 4294A with other instruments and a controller to assemble a comprehensive measuring system, you can use one of the optional rackmount/handle kits to install it in an efficient way. Figure 1-6 shows how to install the rackmount kit.

Table 1-2 Rackmount/Handle Kits

Option ID Description Agilent part number

1CN Handle Kit 5062-3991

1CM Rackmount Kit 5062-3979

1CP Rackmount & Handle Kit 5062-3985

Figure 1-6 Installing the Rackmount/Handle Kit

Option 1CN Handle Kit

Option 1CN includes a pair of handles and the parts necessary for attaching the handles to the Agilent 4294A.

Installing the Handles

Step 1. Remove the adhesive-backed trim strips (1) from the left and right side faces of the front

panel frame (Figure 1-6).

Step 2. Attach the front handles (3) to the side faces with the supplied screws.

26 Chapter 1

Installation

Using a Rackmount Kit

Step 3. Attach the trim strips (4) to the handles.

Option 1CM Rackmount Kit

Option 1CM includes a pair of flanges and the parts necessary for attaching them to the Agilent 4294A. With this option, you can mount the 4294A on an equipment rack with

482.6 mm (19 inch) horizontal spacing.

Mounting the Agilent 4294A on a Rack

Step 1. Remove the adhesive-backed trim strips (1) from the left and right side faces of the front

panel frame (Figure 1-6 on page 26).

Step 2. Attach the flanges (2) to the side faces with the supplied screws. Step 3. Remove all four legs from the bottom face by pulling up the tabs and slidin g the legs out in

the direction indicated by the arrows.

Step 4. Mount the 4294A on the rack.

Option 1CP Rackmount & Handle Kit

Option 1CP includes two flanges and two handles along with their attachments.

Mounting the Agilent 4294A on a Rack (w ith Handles)

Step 1. Remove the adhesive-backed trim strips (1) from the left and right side faces of the front

panel frame (Figure 1-6 on page 26).

Step 2. Attach the handles (3) and flanges (5) to the side faces with the supplied screws. Step 3. Remove all four legs from the bottom face by pulling up the tabs and slidin g the legs out in

the direction indicated by the arrows.

Step 4. Mount the 4294A on the rack.

Chapter 1 27

Installation

Environmental Requirements

The Agilent 4294A is designed to operate under the following environmental conditions (with the floppy disk drive operational). For more information, refer to Chapter 10 , “Specifications and Supplemental Performance Characteristics,” on page 313.

T emp erature: 10°C to 40°C Humidity: 15% to 80% (relative humidity)

NOTE The Agilent 4294A must be protected from temperature extremes that could cause

condensation within the instrument.

Ventilation Requirements

To ensure adequate ventilation , make su re that th ere is adequ ate clearance of at least 180 mm behind the unit and 60 mm at each side.

Instructions for Cleaning

To prevent electrical shock, disconnect the Agilent 4294A's power cable from the power outlet before cleaning.

To clean the exterior of the Agilent 4294A, gently wipe the surfaces with a dry cloth or a soft cloth that is soaked with water and wrung tightly. Do not attempt to clean the 4294A internally.

28 Chapter 1

2 Learning Operation Basics

This chapter guides you through a tour of the basic measurement functions of the Agilent 4294A Precision Impedance Analyzer. If you are new to the Agilent 4294A, this tutorial should help you get familiar with the instrument.

Learning Operation Basics

Required Equipment

To perform all of the steps in this tour, you must have the following equipment:

• Agilent 4294A Precision Impedance Analyzer (1 unit)

• 16047E Text Fixture for Lead Components (1 piece)

• DUT: Capacitor with lead wires having self-reson ance frequency of 100 MHz or lower ,

such as a 0.1 µF ceramic capacitor (1 piece)

Figure 2-1 Required Equipment

30 Chapter 2

Learning Operation Basics

Preparing for a Measurement

Prepare the Agilent 4294A for measurement by taking the following steps. This procedure assumes that the Agilent 4294A has been correctly installed and set up as described in Chapter 1 , “Installatio n,” on page 17.

Connect the Agilent 16047E Test Fixture

Connect the Agilent 4294A to the Agilent 16047E Test Fixture for Lead Components.

Step 1. Attach the 16047E test fixture to the test connector s on the front panel of the Agilent

4294A by gradually coupling the four BNC connectors and fastening screws of the fixture with the test connectors and accessory mounting holes of the instrument until they are in complete contact.

Step 2. Fasten two of the four BNC connectors to the corresponding test connectors by gradually

turning the BNC connectors' rotation levers until each pair of connectors is securely connected. Be sure to align the grooves on both sides.

Step 3. Simultaneously turn the fixture's two fastening screws clockwise so that the fixture is

secured to the instrument.

Step 4. Finally, secure the remaining two BNC connectors of the fixture by turning their rotation

levers clockwise.

Figure 2-2 Connecting the Agilent 16047E Test Fixture

NOTE Reverse the above procedure when removing the Agilent 16047E Test Fixture.

Chapter 2 31

Learning Operation Basics

Preparing for a Measurement

Turn ON the Power

Press the power switch to turn on the power to the Agilent 4294A. The Agilent 4294A performs a power-on self-test. During the self-test, the model name,

firmware revision numb e r/dat e, options, copyright notice, and other i nf ormati on ap pear on the LCD. When the self-test is completed, the measurement screen appears on the LCD.

Set the Adapter Type to “NONE”

Use the keystroke sequence [Cal] - ADAPTER [ ] - NONE to configure the Agilent 4294A to operate without an adapter .

This option must be selected when the Agilent 4294A is connected to a direct-coupling type test fixture such as the Agilent 16047E. With the adapter type set to “NONE,” the Instrument Status area on the measurement screen does not display the “EX1,” “EX2,” “7mm,” and “PRB” indicators.

NOTE When you use the Agilent 4294A for actual applications, you may want to use an adapter

such as a 7-mm conversion adapter (terminal adapter), cable, or probe. To do so, you must specify the appropriate adapter type and then perform a calibration procedure called “Adapter Setup,” in which you calibrate the Agilent 4294A for the connected adapter by measuring a specific calibration standard. However, because this example uses the Agilent 16047E, which is a direct-coupling fixture that does not require an adapter, you need not perform the “Adapter Setup” procedure in this t our.

For the Agilent 4294A to perform measurement, you must select the appropriate adapter type option. Whenever you start a new measurement session, you should check the indicator (“EX1,” “EX2,” “7mm,” “PRB,” or blank) shown in the Instrument Status area to confirm that the correct adapter type is selected. Do not forget to check the adapter type, particularly if you frequently reconnect the Agilent 4294A to a number of alternative adapters (including a 7-mm conversion adapter, probe, cable, test fixture, and so on).

32 Chapter 2

Learning Operation Basics

Specifying Measurement Conditions

Next, you need to specify how your Agilent 4294A should perform measurement.

NOTE Through this procedure, you will configure parameters that apply to both Traces A and B.

You can set each parameter without specifying the active trace or checking its current setting.

Initialize the Agilent 4294A to the Preset State

Press the [Preset] key to initialize the Agilent 4294A. This puts the Agilent 4294A into its preset state.

NOTE If you turn on the Agilent 4294A wit h a power - on setti ng fil e residi ng on the flas h memor y

(nonvolatile memory disk) or on a floppy disk inserted in the floppy disk drive, the file is automatically loaded, and the settings contained in the file are restored. Initializing the Agilent 4294A to its preset state ensures that no specific settings are inherited from the last measurement session. Therefore, you should initialize the Agilent 4294A by pressing the

[Preset] key whenever you are configuring it for a new measuremen t session, regardless of

whether you turned the instrument off and back on after the previous session. Note that initializing the Agilent 4294A with the

adapter the instrument is configured to use. Once you have set the adapter type, the setting is retained until you select another adapter type.

[Preset] key does not affect which type of

Select |Z|-θ as the Measurement Parameter

To select the measurement parameter, follow these steps:

Step 1. Press the Step 2. Make sure that the

With the reflects the impedance phase.

[Meas] key to display the Measurement Parameter menu.

|Z|-θ key is selected (this key is selected by default in the preset state).

|Z|-θ key selected, Trace A reflects the absolute impedance value while Trace B

Select Frequency as the Sweep Parameter

Step 1. Press the [Sweep] key to display t he Sweep menu . Step 2. Check the PARAMETER [ ] s oftkey label to confirm that “FREQ” (frequency sweep) is

shown between the brackets

NOTE The Sweep Parameter menu, which is not used in this tour, allows you to change the s weep

parameter. You can access this menu by pressing the PARAMETER [ ] key.

[ ] (this setting is selected by default in the preset state).

Select Logarithmic Sweep as the Sweep Type

Step 1. From the Sweep menu, select TYPE [ ] to display the Sweep Type menu.

Chapter 2 33

Learning Operation Basics

Specifying Measurement Conditions

Step 2. Press the LOG key to select Log (logarithmic) sweep.

Set the Sweep Start Value to 100 Hz

Step 1. Press the [Start] key. The current setting of the sweep start value appears in the Parameter

Setting field in the upper-left area of the screen.

Step 2. Type “100” into the Parameter Setting field using th ese ENTRY block keys: Step 3. Specify that the value does not take any un it by pres sing the

This puts your entry into effect.

[×1] key in the ENTRY block.

[1][0][0].

Set the Sweep Stop Value to 100 MHz

Step 1. Press the [Stop] key. The current setting of the sweep stop value appears in the

Measurement Parameter field in the upper-left area of the screen.

Step 2. Type “100” into the Parameter Setting field using th ese ENTRY block keys: Step 3. Suffix your entry with “M” (mega) by pressing the [M/m] key in the ENTRY block. This

puts your entry into effect.

[1][0][0].

Set the Measurement Bandwidth to 2

Step 1. Press the [Bw/Avg] key to display the Measurement Bandwidth/Averaging menu. Step 2. Press the BANDWIDTH [ ] key to display the Measurement Bandwidth Setting menu. Step 3. Set the measurement bandwidth to 2 by pressing the

2 key.

34 Chapter 2

Learning Operation Basics

Fixture Compensation

Next, you need to eliminate errors produced between the test fixture and the Agilent 4294A. This process is called “fixture compensation.” You can perform the process using three compensation functions: OPEN, SHORT, and LOAD.

NOTE All calibration settings, including thos e established through fixture compensation, are

applied to both Traces A and B. You can execute each compensation function without specifying the active trace or checking the current state.

Perform Fixture Compensation for the Open Circuit State

Step 1. Press the [Cal] key to display the Calibration menu. Step 2. Press the Step 3. Make sure that the two test electrodes, HIGH and LOW, of the connected text fixture

(Agilent 16047E) are open. Be sure to fix the two electrodes in position by turning clockwise the fixture’s two electrode fastening screws.

Step 4. Press the

measuring the compensation data, a message “WAIT--MEASURING STANDARD” is displayed in the Parameter Setting field in the upper-left area of the screen. Upon completion of measurement, the indicating that the OPEN compensation function is turned on.

FIXTURE COMPEN key to displa y t he Fixture Com pensation me nu.

OPEN key to measure the OPEN compensation data. While the instrument is

OPEN on OFF softkey label changes to OPEN ON off,

Perform Fixture Compensation for the Short Circuit State

Step 1. Remove the short bar (a metal plate for SHORT compensation) from the upper part of the

Agilent 16047E by loosing the screws and then fit the short bar between the HIGH and LOW terminals of the Agilent 16047E. Secure the short bar with the two electrode fastening screws (Figure 2-3 on page 36).

Chapter 2 35

Learning Operation Basics

Fixture Compensation

Figure 2-3 Setting Up the Test Circuit for SHORT Compensation

Step 2. Press the

SHORT key to measure the SHORT compensation data. While the instrument is

measuring the compensation data, a message “WAIT--MEASURING STANDARD” is displayed in the Parameter Setting field in the upper-left area of the screen. Upon completion of measurement, the

SHORT on OFF softkey label changes to SHORT ON off,

indicating that the SHORT compensation function is turned on.

Step 3. Remove the short bar from the Agilent 16047E's test electrodes.

NOTE The Agilent 4294A provides three fixture compensation functions: OPEN, SHORT, and

LOAD. You can turn on/off each of these compensation functions individually and use them in any combination to perform the fixture compensation process. In typical measurement use, it is recommended that you execute the OPEN and SHORT compensation functions.

36 Chapter 2

Carrying Out Measurement and Viewing Results

Connect the DUT

Step 1. Increase the distance between the HIGH and LOW electrodes of the Agilent 16047E by

turning their fastening screws counterclockwise.

Step 2. Fit the DUT's lead wires between the HIGH and LOW electrodes. Step 3. Turn the fastening screws of the HIGH and LOW electrodes to secure the DUT's lead

wires.

Figure 2-4 Connecting the DUT

Learning Operation Basics

Carrying Out Measurement and Viewing Results

Chapter 2 37

Learning Operation Basics

Carrying Out Measurement and Viewing Results

Figure 2-5 Measurement results displayed just after connecting the DUT

Apply the Logarithmic Format to the Vertical Axis for |Z|

Step 1. Make sure that Trace A is selected as the active trace (Trace A is active by default in the

preset state).

Step 2. Press the Step 3. Press the LOG key to make the graph's vertical axis logarithmic.

[Format] key to display the Display Format menu.

Apply the Linear Format to the Vertical Axis for θ

Step 1. Press the [B] key to activate Trace B. Step 2. Make sure that the graph's vertical axis is in the linear format with the

(this setting is selected by default in the preset state).

LIN key selected

38 Chapter 2

Carrying Out Measurement and Viewing Results

Figure 2-6 Result of Applying the Logarithmic Format to the Graph

Learning Operation Basics

Display the Measured |Z| and θ Values in Parallel

Step 1. Press the [Display] key to display the Display menu. Step 2. Press the

should change to

SPLIT on OFF key to split the screen into upper and lower halves (the key label

SPLIT ON off).

Chapter 2 39

Learning Operation Basics

Carrying Out Measurement and Viewing Results

Figure 2-7 Displaying Traces A and B in Parallel

NOTE You do not need to check which trace is active when you split the screen because this

setting is applied to both Traces A and B.

Auto-scale the |Z| Trace

Step 1. Press the [A] key to activate Trace A. Step 2. Press the Step 3. Press the

[Scale Ref] key to display the Scale Reference menu. AUTO SCALE key to auto-scale the trace for |Z|.

Auto-scale the θ Trace

Step 1. Press the [B] key to activate Trace B. Step 2. Press the AUTO SCALE key to auto-scale the trace for θ.

40 Chapter 2

Figure 2-8 Results of Auto-scaling

Learning Operation Basics

Carrying Out Measurement and Viewing Results

Chapter 2 41

Learning Operation Basics

Results of Analysis

Determine the Self-resonance Frequency and Resonant Impedance

Step 1. Press the [A] key to activate Trace A. Step 2. Press the

identified by number 0) appears in the center of the graph.

Step 3. Press the

should change to performs a search action upon completion of each sweep cycle.

Step 4. Press the

tracking function is enabled, the instrument detects and moves the main marker to the minimum |Z| value each time it has completed one sweep cycle.

You can determine the self-resonance frequency and resonant impedance by reading the sweep parameter (frequency) and measurement parameter values indicated by the main marker that appears in the upper-left area of the graph for Trace A. In the example shown in Figure 2-9, the DUT exhibits its self-resonance frequency and resonant impedance at approximately 5.13 MHz and 155 mΩ, respectively.

Figure 2-9 Result of Searching for the Self-Resonance Frequency (with the Search Tracking

Function On)

[Search] key to display the Search menu. The main marker (a trace marker

SEARCH TRK on OFF key to turn on the search tracking function (the key label

SEARCH TRK ON off). When this function is enabled, the instrument

MIN key to move the main marker to the minimum |Z| value. Since the search

42 Chapter 2

3 Front/Rear Panel and LCD Display

This chapter covers the features of the front and rear panels of the Agilent 4294A. It contains illustrations and descriptions of the front panel features, the LCD display and its labels, and the rear panel connectors.

Front/Rear Panel and LCD Display

Front Panel

The front panel of the Agilent 4294A provides several blocks of hardkeys and an LCD display with a series of softkeys along its right-hand edge. Also, there are a number of test connectors and a power switch beneath the LCD display. Figure 3-1 shows the front panel of the Agilent 4294A.

Figure 3-1 Front Panel of the Agilent 4294A

Hardkeys

The hardkeys are 46 physical keys located on the upper-right part of the front panel; they are divided into six functionally classified blocks (#1 to #6 in Figure 3-1). Each hardkey is labeled with text that describes its function. The eight keys laid out vertically along the right-hand edge of the LCD display are called “softkeys” to distinguish them from the hardkeys. Note that the term “hardkey” refers to all of the controls within each of the six key blocks, including the circular-shaped rotary knob (❍) in the Entry block.

A hardkey either directly controls the functions of the Agilent 4294A, provides access to softkey menus, or both.

44 Chapter 3

Front/Rear Panel and LCD Display

Front Panel

NOTE As a typographic convention to distingu ish between hardkeys and softkeys, th is

manual uses a pair of brackets (

[ ]) to enclose hardkey labels while showing softkey

labels without enclosing them.

[Hardkey] key Indicates a hardkey labeled “Hardkey.” Softkey key Indicates a softkey labeled “Softkey.”

Note that descriptive text in this manual sometimes only indicates key labels without following them by the word “key.”

When several keys are separated by a hyphen (-), pr ess them in the sequence indicated. For example, you should use the keystroke sequence

[Scale Ref] - AUTO SCALE to enable

automatic scale adjustment. As an exception, numeric keys may appear without a hyphen in between; for example, the keystroke sequence to enter a value of 100 may be expressed as [1][0][0].

1. ACTIVE TRACE block

With the Agilent 4294A, you can v iew two traces (waveforms) for each s weep cycle: T race A and Trace B. Some parameters, such as the sweep range, apply to both traces, while other parameters can be separately configured for each trace. You can use the in the Active Trace block to choose between Traces A and B. Once you have activated either trace, you can configure measurement conditions and perform analysis on that “active” trace. When you set measurement conditions, be aware of which trace is currently active.

[A] or [B] key

[A] key Activates Trace A so you can set conditions and perform

analysis on Trace A.

[B] key Activates Trace B so you can set conditions and perform

analysis on Trace B.

2. MEASUREMENT Block

This block provides keys for configuring all measurement conditions except the test signal settings.

[Meas] key Provides access to a softkey menu that lets you select

measurement parameters.

[Format] key Provides access to softkey menus that let you select the

data display format (graph axis format) and set up the phase display unit and phase expansion feature.

[Display] key Provides access to softkey menus that let you configure

general display options ( except the display f ormat and scale setting) and perform equivalent circuit analysis.

[Scale Ref] key Provides access to a softkey menu that lets you configure

graph scale settings.

Chapter 3 45

Front/Rear Panel and LCD Display

Front Panel

[Bw/Avg] key Provides access to a softkey menu that lets you configure

the bandwidth and averaging settings.

[Cal] key Provides access to a softkey menu that lets you set up the

calibration feature.

3. STIMULUS Block

This block provides keys for configuring the test signal parameters.

[Sweep] key Provides access to a softkey menu that lets you configure

the sweep settings for th e t e st signals.

[Source] key Provides access to a softkey menu that lets you configure

the frequency (CW frequency) , test signal level , and dc bias conditions. When you are setting a sweep parameter, you can use the the sweep range.

[Trigger] key Provides access to a softkey menu that lets you set up the

trigger system.

[Start], [Stop], [Center], and [Span] keys to set

[Start] key Lets you specify the value at which to start the sweep. [Stop] key Lets you specify the value at which to stop (finish) the

sweep.

[Center] key Lets you specify the sweep center value. [Span] key Lets you specify the sweep span value.

4. ENTRY Block

Provides keys for entering numeric values and text strings. To configure a parameter, first press the hardkey or softkey associated with the parameter to put the instrument into entry mode, in which it can accept your entry with the name and current value of the parameter shown in the upper-left area of the LCD display, and then use these keys to enter the desired value.

❍

❍ (rotary knob) Y o u can adjust the current sett ing by turning thi s knob. This

❍❍

method immediately updates the parameter value without requiring you to press a unit key. When working with a particular configuration item, you can also use the rotary knob to move the cursor horizontally.

[↑] and [↓] keys

(step keys)

The step keys allow you to increment or decrement the current setting. This method immediately updates the parameter value without requiring you to press a unit key.

[Entry Off] key This key switches the instrument from entry mode to

normal operation mode with the name and current setting of the parameter no longer shown in the upper-left area of the LCD display.

46 Chapter 3

Front/Rear Panel and LCD Display

Front Panel

[Back Space] key Deletes the character to the left of cursor and moves the

cursor back one space. If you make a mistake in entering a value through numeric keys , you can us e this k ey to correct your entry.

[0] through [9] keys

(numeric keys) with

[-] keys [G/n][M/µ][k/m][×1] keys

[.] and

(unit keys)

Use these keys to enter each numeral that makes up your entry. Finally, press a unit key to put your entered value into effect.

After entering your desired value through numeric keys, press one of the unit keys to suffix the value with the specific unit. Your entered value does not take effect until you press a unit key. Each unit key, except the [×1] key, represents two different units, identifying them with their respective initial letters. Which unit to use is automatically determined based on the selected parameter. Use the [×1] key to enter a value that does not take a specific unit.

5. MARKER Block

The MARKER block provides keys for configuring marker settings. A marker is an inverted triangle (∇) that appears on the measurement trace (waveform). The marker allows you to read the value of a parameter at a specific point on the trace.

[Marker] key Provides access to a softkey menu that lets you configure

the basic marker settings such as turning on/off the marker facility.

[Marker→] key Provides access to a softkey menu that lets you assign the

currently marked value to another parameter. From the softkey menu, for example, you can select the

MKR→START key to use the sweep parameter value at the

current marker position as the value at which to start the sweep; this way, you can start a new sweep cycle from the current marker position.

[Search] key Provides access to a softkey menu that lets you activate the

marker search function. The marker search function automatically moves the marker to a specific position (such as the maximum value) on the trace so you can check the value of the parameter at that position.

[Utility] key Provides access to a softkey menu that lets you activate

other marker functions in addition to the marker value assignment (

[Marker→]) and marker search ([Search])

functions.

6. INSTRUMENT STATE Block

Provides keys for configuring basic instrument settings that are not directly related to

Chapter 3 47

Front/Rear Panel and LCD Display

Front Panel

measurement or analysis.

[System] key Provides access to a softkey menu that lets you control and

manage the entire instrument. You can also set up the limit line test function.

[Local] key Pressing this key switches the Agilent 4294A from remote

mode (in which it is controlled by an external controller) to local mode (in which it accepts keystrokes from its front panel). While the instrument is in remote mode, the “Rmt” LED above this key is lit. This key also provides access to a softkey menu that lets you configure the GP-IB and LAN settings.

[Preset] key Initializes the Agilent 4294A to its preset state. No softkey

menu is displayed after you put the instrument into the preset state by pressing this key, but you can display a softkey menu by pressing one of the hardkeys associated with softkey menus.

[Copy] key Provides access to a softkey menu that lets you control how

to output the screen contents to the printer.

[Save] key Provides access to a softkey menu that lets you save such

information as the current settings, measurement data, and screen contents to the storage device of the Agilent 4294A.

[Recall] key Provides access to a softkey menu that lets you recall (load)

a state file from the storage device of the Agilent 4294A to restore the settings and measurement data stored in the state file.

7. Softkeys

The softkeys are eight keys located along the right -hand edg e of the LCD dis play. Pressing a hardkey displays a menu of labels that define the functions of the softkeys. For more information on softkey labels, refer to “5. Softkey Label Area” on page 54.

8. Color LCD Display

Displays nearly all information necessary for using the Agilent 4294A, including measurement results (trace data), instrument status, analysis results, and softkey labels.

9. Power Switch

Turns on/off the power to the instrument. When you turn on the Agilent 4294A, it is initialized to its power-on defaults, with no softkey menu shown on the screen. From this state, you can display a softkey menu by pressing a specific hardkey. Note that if you turn on the instrument with a power-on setting file (AUTOREC.STA) residing on the flash memory (nonvolatile memory disk) or on a floppy disk inserted in the floppy disk drive, the file is automatically loaded, and the settings contained in the file are restored.

48 Chapter 3

Front/Rear Panel and LCD Display

Front Panel

10. UNKNOWN Terminals

These connectors let you connect the instrument with a device under test (DUT) via test accessories (such as an adapter, test fixture, or cable). These accessories adopt a four-terminal pair design, thereby enabling more accurate and wider-range dynamic measurements. Each test connector has a pair of holes for securing the test accessory to the instrument.

INSTALLATION CATEGORY I

CAUTION To prevent failure, do not apply dc voltage or current to the UNKNOWN terminal. Special

care must be taken with capacitors since they may be charged. Be sure to connect the DUT to the UNKNOWN terminal (or test fixture) only after discharging them sufficiently.

11. Built-in 3.5 Inch Floppy Disk Drive

Allows you to store and retrieve such data as measurement data, instrument settings, screen contents, and HP Instrument BASIC programs. This drive uses a 3.5-inch, MS-DOS format floppy disk of 1.44 MB capacity.

Chapter 3 49

Front/Rear Panel and LCD Display

Rear Panel

Figure 3-2 Rear Panel

1. External Reference Input Connector

Allows you to connect an external frequency reference signal to the Agilent 4294A so that its internal signal is phase locked to the external frequency reference signal to achieve a more accurate frequency.

If Option 1D5 (High Stability Frequency Reference) is installed, connect the supplied BNC(m)-BNC(m) adapter between this connector and “2. High Stability Frequency Reference (Option 1D5 Only)”.

When an external frequency reference signal is input to this connector , the Agilent 4294 A's test signal is automatically phase locked to that reference signal. When the reference signal stops, the Agilent 4294A will automatically revert to its internal frequency reference signal.

2. High Stability Frequency Reference (Option 1D5 Only)

This connector is intended for Option 1D5 (High Stability Frequency Reference) to output the reference signal. If Option 1D5 is installed, connect the supplied BNC(m)-BNC(m) adapter between this connector and Åu1. External Reference Input ConnectorÅv.

50 Chapter 3

Front/Rear Panel and LCD Display

Rear Panel

3. External Trigger Input

Allows you to input a TTL-compatible signal to trigger the execution of measurement. When the signal shows a rising or falling edge between the LOW and HIGH states, a measurement cycle is triggered. Before you can trigger measurement by inputting a signal through this connector, you have to specify that the trigger signal be input fr om an external trigger source (via the external trigger input). To do so, use the keystrokes:

SOURCE [ ] - EXTERNAL. For more information on the input signal conditions specific to

this connector, refer to Chapter 10 , “Specifications and Supplemental Performance Characteristics,” on page 313.

[Trigger] -

4. LAN Port

Allows you to connect the Agilent 4294A with a local area network (LAN). The “Tx” (transmit) LED located on the right-hand side of the LAN port is lit while the Agilent 4294A is outputting data over the local area network. For more information on working with a local area network, refer to the Programming Manual.

5. Internal Reference Output

Connects to the external reference input terminal of another instrument to phase lock it to the Agilent 4294A.

6. External Program RUN/CONT Input

Allows you to input a TTL-compatible signal that triggers the RUN or CONTINUE command for an HP Instru ment BASIC program . Wh en the sign al show s a ri sing or f allin g edge between the LOW and HIGH states, then the command is triggered. For more information on the input signal conditions specific to this connector, refer to Chapter 10 , “Specifications and Supplemental Performance Characteristics,” on page 313.

7. 8-bit I/O Port

Provides a data communications interface with an external device such as a handler on a production line. This port supports 4-bit data for input and 8-bit data for output.

8. Time Base Adjuster (for Option 1D5)

This adjuster is used to fine-tune the operating frequency of the Agilent 4294A when it is equipped with Option 1D5 (High Stability Frequency Reference).

NOTE This is intended for service center use only. Do not attempt to adjust the operating

frequency yourself.

9. Mini-DIN Keyboard Port

A PS/2 port intended for connecting a 101-key English keyboard. You can use a keyboard to facilitate entry operations such as creating and executing HP Instrument Basic programs or entering display titles.

NOTE This port only supports a 10 1-k ey English keyboard with a PS/2 connect or. Do not attempt

Chapter 3 51

Front/Rear Panel and LCD Display

Rear Panel

to use an unsupported keyboard.

10. 24-bit I/O Port

Provides a data communications interface with an external device such as a handler on a production line. This port supports 8-bit data for input/output and 16-bit data for output.

11. Printer Port

A parallel port that connects to a printer . Connecting a suppor ted printer allows you to print out such data as measurement graphs and lists of measured values or settings. For a list of supported printers, refer to “Print the measurement results and internal data with a printer” on page 281.

12. External Monitor Terminal

Connects to an external color monitor. An external color monitor connected to this term inal can display the same information as the Agilent 4294A's built-in LCD.

13. GPIB Connector

Allows you to connect the Agilent 4294A to any external controller or instrument that supports GPIB (General Purpose Interface Bus). GPIB is useful when you want to assemble an automatic measurement system by having the Agilent 4294A interact with a controller and other instruments. For information on using GPIB to perform automatic measurement, refer to “Programming Guide.”

14. Inlet (with a fuse box)

T o use the Agilent 4294A, you must connect this inlet with the three-wire power cable that comes with the Agilent 4294A. For more information, refer to Chapter 1, “Installation and Setup.”

52 Chapter 3

Front/Rear Panel and LCD Display

Items Displayed on the LCD

Figure 3-3 Items displayed on the LCD (with split display mode off and full-screen mode on)

1. Measurement Parameter Fields

Each of these fields show the currently selected measurement parameters for either Trace A or B.

2. Scale/Reference Fields

These fields show the current scale settings for Traces A and B.

3. Marker Measurement Parameter Value Fields

These fields show the measurement parameter values that correspond to the current marker position for Traces A and B.

4. Menu Title Field

This field shows the name of the current softkey menu, which consists of up to 8 softkey labels.

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Front/Rear Panel and LCD Display

Items Displayed on the LCD

5. Softkey Label Area

Shows the labels that are, in the current context, associated with the softkeys on the right-hand side. Table 3-1 lists the types of softkey options and their functions.

Table 3-1 Types of softkey options and their functions

Type of softkey option Function

Two or more softkey labels joined with vertical bars (

Softkey label immediately followed by a “➤” symbol

Softkey label followed by

ON off” or “on OFF”

“

You can select one of these options. The currently selected softkey label is underlined.

Pressing the softkey displays a softkey sub-menu associated with a specific function.

Pressing the corresponding softkey turns on/off the function in a toggle fashion. The softkey label is followed by “

ON off” when the function is on and “on OFF” when

the function is off.

Softkey label immediately followed by “

[ ].”

The brackets ( setting of the associated function. If the function has two

[ ]) enclose text that describes the current

alternative settings, pressing the softkey toggles between the settings. If the function has three or more alternative settings, the label is usually followed by “➤,” and pressing the softkey displays a softkey sub-menu for selecting one of those settings.

more n/m This softkey label indicates that the softkey menu consists

m pages, and that the nth page of the menu is currently

displayed. You can use the

more n/m key to move to the

next page of the softkey menu (or to the first page if the current page is the last one).

return This softkey label is contained in a softkey sub-menu that is

displayed when you press a softkey followed by “➤.” You can press the corresponding softkey to return to the main menu, that is, the original softkey menu that had been displayed before you accessed the current menu, as long as the current menu is a sub-menu.

done Select this softkey label to put your entry into effect and

return to the main menu.

yes This softkey label appears when you are prompted to

confirm yo ur entry before applying it. Pressing the corresponding softkey puts your entry into effect.

cancel Select this softkey label to cancel your entry and return to

the main menu.

54 Chapter 3

Table 3-1 Types of softkey options and their functions

Type of softkey option Function

Front/Rear Panel and LCD Display

Items Displayed on the LCD

Softkey label for setting a parameter

Pressing the corresponding softkey displays the function's current setting in the Parameter Setting field in the upper-left part of the screen and allows you to change the current setting with the Entry block keys (for example,

[Bw/Avg] - AVERATING FACTOR).

Softkey label for executing a function

Pressing the corresponding softkey immediately executes the associated function (for example,

MKR→START).

[Marker] -

1. These softkey labels are displayed without any special symbol.

NOTE Some softkey labels combine two or more of the functions shown in Table 3-1. For

example, the

[Sweep] - EDIT LIST, both turns on “sweep list edit mode” and displays a softkey

EDIT LIST key, which can be accessed through the keystroke sequence

sub-menu for editing the list. Some of the softkey labels currently displayed may not be available depending on the

current context; such softkey labels are dimmed by displaying them at a lower contrast than the other labels. When you choose the appropriate context by using another key, those softkey labels will revert to the normal contrast and become available.

6. Sweep Parameter Reading Fields

These fields show the sweep parameter values that correspond to the current marker position for Traces A and B.

7. Marker Status Fields

These fields provide textual representation of the current status of the marker facility.

Marker couple mode

Cpl Indicates that the marker facility is currently in couple mode. In this

mode, changes to Traces A and B are synchronized.

Marker search track mode

Max Indicates that the marker facility is currently in search track mode and

configured to detect the maximum value. The main marker moves to the maximum value on the trace each time one sweep cycle is completed.

Min Indicates that the marker facility is currently in search track mode and

configured to detect the minimum value. The main marker moves to the minimum value on the trace each time one sweep cycle is completed.

Targ Indicates that the marker facility is currently in search track mode and

configured to detect the specified target value. The main marker moves to the target value on the trace each time one sweep cycle is

Chapter 3 55

Front/Rear Panel and LCD Display

Items Displayed on the LCD

completed.

Peak Indicates that the marker facility is currently in search track mode and

configured to detect the peak value. The main marker moves to the peak value on the trace each time one sweep cycle is completed.

∆ marker mode ∆Mkr Indicates that the marker facility is currently in default ∆ marker

mode. In this mode, the ∆ marker keeps track of changes to the trace, maintaining the same position in terms of the sweep parameter value.

Fxd∆ Indicates that the marker facility is currently in fixed ∆ marker mode.

In this mode, the ∆ marker is fixed at a certain point on the screen, without reflecting any changes to the trace. It remains in the same position in terms of both the sweep parameter and measurement parameter values.

Trk∆ Indicates that the marker facility is currently in tracking ∆ marker

mode. In this mode, the ∆ marker appears in the same position as, and moves synchronously with, the main marker,

8. Marker Statistics/Trace Bandwidth Analysis Fields

These fields show the marker statistics (average, standard deviation, and peak-to-peak values) or the results of trace bandwidth analysis (bandwidth, center value, Q peak, ∆L, and ∆R) for Traces A and B. When both features are enabled, they display the marker statistics only.

9. Limit Line Test Fields

These fields show the results of limit line tests as either “PASS” or “FAIL.” By performing a limit line test, you can determine whether the trace of measurement results falls within your specified limit line.

10. HP Instrument Basic Status Indicator

Indicates the execution status of HP Instrument BASIC. * HP Instrument BASIC is currently executing a program or command.

You cannot execute an additional command.

_ HP Instrument BASIC ha s suspen ded the execut ion of a p rog ram. You

can resume the program using the CONTINUE command.

? HP Instrument BASIC is waiting for a keystroke to continue the

execution of a program. You cannot execute an additional command.

(blank) HP Instrument BASIC is not executing a program or command. You

can use commands other than the CONTINUE command.

11. dc Voltage/Current Bias Monitor Field

This field shows the monitor value (voltage or amperage) for the dc bias conditions that are currently in effect. For this field to actually display the monitor value, you must apply dc bias through the keystroke sequence

56 Chapter 3

[Source] - BIAS MENU - BIAS on OFF and then turn

Front/Rear Panel and LCD Display

Items Displayed on the LCD

on the dc bias monitor feature through the keystroke sequence [Display] - BIAS MON [ ] -

VOLT/CURRENT.

12. Sweep Stop/Span Value Field

This field shows the sweep stop or span value that is currently in ef fect. Use the [Stop] key to set the sweep stop value and the

[Span] key to set the sweep span value.

13. Test Signal Current Level Monitor Field

This field shows the AC current level monitor value for the test signal that is currently in effect. For this field to actually display the monitor value, you must turn on the test signal level monitor feature through the keystroke sequence

[Display] - OSC MON on OFF.

14. Test Signal Level/CW Frequency Setting Field

This field shows the test signal level setting for frequency sweep or the CW frequency setting for test signal level sweep or dc bias sweep. Use the [Source] key to change the current value.

15. Test Signal Voltage Level Monitor Field

This field shows the AC voltage level monitor value for the test signal that is currently in effect. For this field to actually display the monitor value, you must turn on the test signal level monitor feature through the keystroke sequence

[Display] - OSC MON on OFF.

16. Sweep Start/Center Value Field

Shows the start or center value for the sweep settings that are currently in effect. Use the

[Start] key to set the sweep start value and the [Center] key to set the sweep center value.

17. Instrument Status Area

This area shows the status of various functions of the ins trument.

Trace validity

* After you have changed the measurement conditions, this indicator is

displayed until you update the measurement trace with the new settings. T o get a correct measurement trace, yo u must update the trace so that this indicator disappears.

dc bias status

DCB Indicates that the instrument is performing measurement under dc

voltage bias conditions (in variable voltage mode) or dc current bias conditions (in variable current mode).

VC Indicates that the instrument is performing measurement under dc

voltage bias conditions (in constant voltage mode).

IC Indicates that the instrument is performing measurement under dc

current bias conditions (in constant current mode).

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Front/Rear Panel and LCD Display

Items Displayed on the LCD

V ↓ Indicates that, because you specified dc voltage bias (in constant

voltage mode) with a setting that exceeds the defined voltage limit, the actual applied voltage differs from the intended setting.

I ↓ Indicates that, because you specified dc current bias (in constant

current mode) with a setting that exceeds the defined curren t limi t, the

actual applied current differs from the intended setting. (blank) Indicates that dc bias conditions are not applied. Note that when dc bias conditions are app lied, th e “DC BI AS ON” ind ica tor appear s in th e

lower-right corner of the s creen, regar dless of which bias mode (DC B, VC, IC, V ↓, or I ↓) is selected.

Adapter type

EX1 Indicates that the instrument is configured to use a 1-meter,

four-terminal pair cable. EX2 Indicates that the instrument is configured to use a 2-meter,

four-terminal pair cable. 7mm Indicates that the instrument is configured to use the Agilent 42942A

Terminal Adapter (four-terminal pair to 7-mm conversion adapter). PRB Indicates that the instrument is configured to use the 42941A

Impedance Probe. (blank) Indicates that the instrument is configured to operate without an

adapter.

User calibration/port extension status

User calibration

feature

CAL ON Fixed Cal ON User-defined POR ON Fixed Por ON User-defined CAP ON ON Fixed CaP ON ON User-defined (blank) (Unknown)

Blank cells in the table indicate that the feature is off.

Port extension

feature

Correction point

setting

58 Chapter 3

Fixture compensation status

Front/Rear Panel and LCD Display

Items Displayed on the LCD

Fixture Compensation

Correction point setting

feature

CMP ON Fixed Cmp ON User-defined (blank) (Unknown)

Blank cells in the table indicate that the feature is off.

NOTE The user correction and fixture compensation features share the same correction point

settings. You cannot set correction points specific to a single feature.

Averaging status

Avg Indicates that the sweep-to-sweep averaging feature is on. (blank) Indicates that the sweep-to-sweep averaging feature is off.

Averaging counter

(Positive integer) When the sweep-to-sweep averaging feature is on, this counter

indicates how many times the current trace has been subjected to sweep-to-sweep averaging. After you have started sweep-to-sweep averaging, the counter shows “1” upon the 1st sweep cycle, “2” upon the 2nd cycle, and so on until it reaches the maximum number of averaging cycles. To view a trace subjected to your specified number of averaging cycles, you must wait for the instrument to repeat the sweep cycles until the counter reaches that number.

Data trace definition

D–M Indicates that the currently displayed data trace represents the result of

subtracting the memory trace data from the measurement data.

D/M Indicates that the currently displayed data trace represents the r esult of

dividing the measurement data by the memory trace data.

D%M Indicates that the currently di splayed data trace repr esents the result of

DATA MEM–

the following operation: [%] (where DATA is the

------------------------------------

MEM

100×

measurement data and MEM is the memory trace data).

–O Indicates that the currently displayed data trace represents the result of

subtracting the offset value from the measurement data.

(blank) Indicates that the currently displayed data trace shows the exact

measurement data.

NOTE If “–O” appears below “D–M” or “D%M,” the data trace represents the result of

performing both operations on the measurement data.

Chapter 3 59

Front/Rear Panel and LCD Display

Items Displayed on the LCD

Service mode status

Svc Indicates that the instrument is in service mode, which is intended for

servicing use only. The accuracy of data measured in this mode is not

guaranteed. For more information, refer to the “Service Manual.” (blank) Indicates that the instrument is ready for normal measurement use.

Sweep/trigger status

Hld Indicates that the sweep function is in Hold status (i.e., not enabled).

To enable the sweep function, you must select one of the available

sweep modes (single-cycle sweep, group sweep, or continuous sweep). ↓ Indicates that the instrument is performing a sweep cycle. This

indicator appears at the measurement point on the trace 1.5 seconds

after the start of a sweep cycle. ext Indicates that the instrument is waiting for an external signal that

triggers the start of measurement. This indicator appears after you

have used the keystroke sequence

EXTERNAL to specify that the trigger signal be input from an external

[Trigger] - SOURCE [ ] -

trigger source (via the external trigger input). man Indicates that the instrument is in manual trigger mode, in which you

can manually start measurement by pressing the

indicator appears after you have u sed the keystroke sequence

SOURCE [ ] - MANUAL.

MANUAL key. This

[Trigger]

bus Indicates that the instrument is waiting for a measurement trigger

command to be input through GP-IB or from a LAN. This indicator

appears after you have used the keystroke sequence

SOURCE [ ] - HP-IB/LAN.

[Trigger] -

18. Equivalent Circuit Parameters Field

This field shows the equivalent circuit parameter values after you have used the keystroke sequence

[Display] - more 1/2 - EQUIV CKT - PARAMETERS on OFF. T o use this field to

view the parameter values, you can first either apply the equivalent circuit analysis feature to calculate the parameter values from the trace representing the mesured frequency characteristics or enter the equivalent parameter values for simulating frequency characteristics.

19. External Reference Input Status Field

When a reference signal is input to the external reference input terminal on the rear panel, this field shows “ExtRef” (even if the instrument is not phase locked). The indicator disappears when the reference signal stops.

20. Parameter Setting/Instrument Message Field

When you press a key to set a particular parameter (for example, the [Start] to set the sweep start value), this field shows the current setting. When you are changing the current setting, the field also serves as the place to enter the new value through the ENTRY block keys. In addition, an instrument message such as an error mess age may appear in the upper part of this field. For a list of common error messages, Refer to Appendix C , “Error

60 Chapter 3

Front/Rear Panel and LCD Display

Items Displayed on the LCD

messages,” on page 417.

21. Title Field

This field provides a place to enter a title (up to 64 alphanumeric characters) that describes the current screen. To enter the title, use the keystroke sequence

TITLE.

[Display] - more 1/2 -

Chapter 3 61

Front/Rear Panel and LCD Display

Items Displayed on the LCD

62 Chapter 3

4 Preparation of Measurement Accessories

This chapter describes the required preparation of accessories after finis hing installation of the Agilent 4294A and before starting measurements. If you have not completed installation, please refer to Chapter 1 , “Installation,” on page 17 before proceeding to this chapter.

Preparation of Measurement Accessories

Selecting Accessories for Measurement

Select the appropriate accessories (test fixture, adapter, probe, cable, etc.) for your measurement in accordance with Table 4-1. Detailed specifications are described in catalogs or in the operation manual of each accessory.

Table 4-1 Guidelines for Selecting Accessories

Type of

Device

Lead component

Condition Accessory Features of Accesso ry

Entire frequency range of 4294A 16047E Equipped with screws for firm ly

fixing the fixture to the 4294A.

Entire frequency range of 4294A 429 42A and 16092A For both chip and lead

components.

Entire frequency range of 4294A 42942A and 16093A Two binding-post-type

electrodes set 7 mm apart.

Entire frequency range of 4294A 42942A and 16093B Thre e binding-post- type

electrodes set 15 mm and 18 mm apart.

Frequency ≤ 40 MHz 16047C Frequency ≤ 40 MHz 16047D For axial and ra dial lead

components.

Frequency ≤ 13 MHz 16047A For axial and radial lead

components.

Frequency ≤ 10 MHz, Balanced component and circuit measurement

Frequency ≤ 2 MHz, External dc bias up to 200 V

16314A Three binding-post-type

electrodes.

16065A For axial and radial lead

components. Equipped with safety cover.

Frequency ≤ 100 kHz, Component terminal diameter ≤ 15 mm

Frequency ≤ 100 kHz, Component terminal diameter ≤ 7.9 mm

Frequency ≤ 100 kHz, Component terminal diameter ≤ 6 mm

Frequency ≤ 100 kHz, IC pin diameter ≤ 1 mm

Frequency ≤ 100 kHz 16089D Four alligator clips.

16089A Two Kelvin c lips.

Cable length: approx. 1 m.

16089B Two Kelvin clips.

Cable length: approx. 1 m.

16089E Two Kelvin clips.

Cable length: approx. 1 m.

16089C Two Kelvin clips.

Cable length: approx. 1 m.

64 Chapter 4

Table 4-1 Guidelines for Selecting Accessories

Prepar ation of Measurement Accessories

Selecting Accessories for Measurement

Type of

Device

Chip component

Condition Accessory Features of Accesso ry

Entire frequenc y range of 4294A, Component size ≥ 0603

Entire frequenc y range of 4294A, Component size ≥ 1608

Entire frequenc y range of 4294A, Component size ≥ 2012

Entire frequenc y range of 4294A, Component size ≥ 1608

Entire frequency range of 4294A 42942A and 16092A For both chip and lead

Frequency ≤ 40 MHz, Component size ≥ 1608

Frequency ≤ 15 MHz 16334A Tweezers type.

Frequency ≤ 10 MHz, Component size ≥ 1608, Low impedance device

16034G

16034H Can measure arra y- type

components.

42942A and 16191A Connect e d to the component’s

bottom face.

42942A and 16192A Connected to both sides of the

component.

42942A and 16193A Connect e d to the component’s

bottom face.

components.

16034E

Cable length: approx. 1 m.

16044A Connected to the device by four

terminals.

Circuit Entire frequency range of 4294A

Solid material

Liquid material

General Cable extension

1. Furnished with the 42941A Impedance Probe Kit.

Permittivity measurement 16451B Cable length: a pprox. 1 m. Permeability measurement 42942A and 16454A

Permittivity measurement

42941A and probe adapter

16048G and 16452A 16048G: approx. 1 m. 16048H and 16452A 16048H: approx. 2 m. 16048G and test fi xture 16048G: approx. 1 m. 16048H and test fi xture 16048H: approx. 2 m. 42942A, coaxial ca ble, and

test fixture 42941A, coaxial ca ble, and

test fixture

Probe type.

42941A: approx. 1.5 m.

NOTE The 16085B Terminal Adapter cannot be used in place of the 42942A Terminal Adapter.

The 16048A BNC 1 m Cable, the 16048B SMC 1 m Cable, the 16048D BNC 2 m Cable, or the 16048E BNC 4 m Cable cannot be used in place of the 16048G or 16048H.

Chapter 4 65

Preparation of Measurement Accessories

Connecting the Accessories

Step 1. Connect the measurement accessories to the Agilent 4294A. Step 2. Press the power switch on the front panel of the Agilent 4294A to turn it on.

For more information on connecting accessories to the Agilent 4294A for measurement, refer to the operation manual furnished with each accessory.

NOTE Whenever you connect accessories to or disconnect accessories from the Agilent 4294A,

you must first turn off the dc bias (Key s trok es: this step is not taken, the dc bias may destroy the device.

When you connect or disconnect accessories with the Agilent 4294A turned on, error messages such as “ADC OVERLOAD” or “BRIDGE UNBALANCED” may be displayed on the LCD. However, this does not cause any special problem. To turn off the message, press

[Entry Off] key.

The power-on self-test is executed at power-on. If an error is detected in the power-on self-test, the message “CAUTION: POWER ON TEST FAILED” is displayed in the upper-left area of the screen. In this case, contact your nearest Agilent Technologies office or the company from which you purchased this instrument. For more information on the self-test (self-diagnostic) function, refer to “Performing Self-Diagnosis of the Agilent 4294A” on page 310.

[Source] - BIAS MENU - BIAS ON off). If

66 Chapter 4

Prepar ation of Measurement Accessories

Adapter Setting

You must ensure that the adapter setting is properly set after you finish connecting accessories to the four-terminal pair port of the Agilent 4294A and before you start measurement. If required, change it to the correct adapter setting. The adapter setting includes adapter selection and the data acquisition process, which is called adapter setup. Table 4-2 lists the device connection s and correspo ndin g adapter settings.

Table 4-2 Device Connections and Adapter Settings

Device Connection Accessory

Adapter

Selection

Adapter Setting

Adapter Setup (data measurement)

(√: required; blank: not required)

Phase

OPEN SHORT LOAD

A. Connect a direct connection type test fixtur e to the four-terminal pair port

of the Agilent connect the devi ce to the fixture contacts.

B. Extend the four-termin a l pair port of the Agilent 4294A with a 1-meter-long

four-t erminal pair configuration and connect the device.

C. Extend the four-termin a l pair port of the Agilent 4294A with a 2-meter-long

four-t erminal pair configuration and connect the device.

4294A and

16034E 16034G 16034H 16044A 16047A 16047C 16047D 16047E

16065A

16089A

16089B

16089C

16089D

16089E 16314A

16048G and test fixture 16048G and 16452A

16334A Four-terminal pair,

16451B Fou r-terminal pair,

16048H and test fixture 16048H and 16452A

No Adapter (

Four-terminal pair, 1 meter (

1 meter (

Four-terminal pair, 2 meters (

NONE)

4TP 1M)

4TP 2M)

√√

√

√√

D. Connect the 42942 A directly to the four-terminal pair port of the Agilent 4294A, connect a dedica te d test fixture to the 7-mm port, and then connect the device to the fixture contacts.

42942A and 16092A 42942A and 16093A 42942A and 16093B 42942A and 16191A 42942A and 16192A 42942A and 16193A 42942A and 16454A

42942A Terminal Adapter (

42942A

7mm

)

√√√√

Chapter 4 67

Preparation of Measurement Accessories

Adapter Setting

Table 4-2 Device Connections and Adapter Settings

Device Connection Accessory

Adapter

Selection

Adapter Setup (data measurement)

(√: required; blank: not required)

Phase

OPEN SHORT LOAD

E. Connect the 42942A directly to the four-terminal pair port of the Agilent 4294A, connect a coaxial cable to the 7-mm port, connect a test fixture, and then connect the device to the fixture contacts.

F. Connect the 42941A directly to the four-terminal

pair port of the Agilent 4294A, connect a dedica te d probe adapter to the 3.5-mm port, and then connect the device to the adapte r contacts.

G. Connect t he 42941A directly to the four-terminal

pair port of the Agilent 4294A, connect a coaxial cable to the 3.5-mm port , connect a test fixture, and then connect the device to the fixture contacts.

42942A, coaxial cable, and test fixture

42941A and probe adapter 42941A Impedance

42941A, coaxial cable, and test fixture

42942A Terminal Adapter

7mm 42942A)

(

Probe

PROBE 42941A)

(

42941A Impedance

PROBE

Probe (

42941A

)

1. Phase compensation.

2. Although it has a cable, it is considered a direct-connection-type test fixture.

√√√√

Adapter Selection

The adapter selection setting must be confirmed before measurement in accordance with the connection status of each accessory. If necessary, it must be changed to the correct setting.

The adapter selection of the Agilent 429 4A can b e co nfirm ed an d, if necessary, changed as follows.

Step 1. Press Step 2. The adapter selection status is displayed in the [] space of the ADAPTER [ ] key's softkey

[Cal] key to display the Calibration Menu.

label. Proceed to Step 3 if you need to change the selection.

Softkey Label Adapter Selection Status

ADAPTER [NONE] No Adapter ADAPTER [1M] Four-terminal pair, 1 meter ADAPTER [2M] Four-terminal pair, 2 meter ADAPTER [7mm] 42942A Terminal Adapter

68 Chapter 4

Prepar ation of Measurement Accessories

Adapter Setting

Softkey Label Adapter Selection Status

ADAPTER [PROBE] 42941A Impedance Probe

NOTE Adapter selection status can also be confirmed through the display of the instrument status

area on the LCD's left side. Refer to “Adapter type” on page 58.

Step 3. Press

ADAPTER [ ] key to display the Adapter Setting Menu.

Step 4. Select the corresponding adapter selection from the following:

Adapter Selection Key Strokes

No Adapter Four-termi n al pair, 1 meter 4TP 1M Four-termi n al pair, 2 meters 4TP 2M 42942A Terminal Adapter 7mm 42942A 42941A Impedance Probe PROBE 42941A

NONE

Adapter Setup

The adapter setup is a process used to acquire the setup data of the adapter selected by the “Adapter Selection” on page 68. The adapter setup is normally performed in th e following cases.

• When using the 16048G with the Agilent 4294A for the first time after it is delivered.

• When using the 16048H with the Agilent 4294A for the first time after it is delivered.

• When using the 16334A with the Agilent 4294A for the first time after it is delivered.

• When using the 16451B with the Agilent 4294A for the first time after it is delivered.

• When using the 42942A with the Agilent 4294A for the first time after it is delivered.

• When using the 42941A with the Agilent 4294A for the first time after it is delivered.

• When making a measurement in an ambient temperature that is outside the range of

±5°C from the adapter setup temperature for the above accessories.

NOTE Generally, the adapter setup does not need to be performed except for the above cases.

For each adapter setup procedure, refer to:

• “Adapter Setup Procedure for the 16048G and 16048H” on page 70

• “Adapter Setup Procedure for the 16334A” on page 72

• “Adapter Setup Procedure for the 16451B” on page 73

• “Adapter Setup Procedure for the 42942A” on page 74

• “Adapter Setup Procedure for the 42941A” on page 78

Chapter 4 69

Preparation of Measurement Accessories

Adapter Setting

NOTE When you select “No Adapter” (NONE key) in adapter selection, adapter setup cannot be

performed. Adapter setup data can be obtained and saved for each adapter selection. Adapter setting (adapter selection and adapter setup data) is not affected by turning on/off

the Agilent 4294A or by pressing the [Preset] key to initialize the instrument settings.

Adapter Setup Procedure for the 16048G and 16048H

When you use the 16048G 1 m cable or 16048H 2 m cable with another accessory, only perform the adapter setup for the 16048G or 16048H. The operation manuals of the 16048G and 16048H also describe the adapter setup procedure.

NOTE Adapter setup should be performed at an ambient temperature as close as possible to the

temperature in which the device measurement will actually be made. If the ambient temperature for your measurement is outside the range of ±5°C from the

adapter setup temperature, it is recommended that you perform adapter setup again at the appropriate temperature.

It takes a few minutes to complete each setup data measurement. During each data measurement, the message “WAIT--MEASURING ADJUSTMENT

KIT” is displayed in the instrument state area in the LCD's upper-left side.

Step 1. Make sure that the 16048G or 16048H i s co rrectl y connect ed to th e fou r-terminal pair port

of the Agilent 4294A.

Figure 4-1 Connecting the 16048G or 16048H

70 Chapter 4

Prepar ation of Measurement Accessories

Adapter Setting

NOTE The 16048G or 16048H cable must be directly connected to the four-terminal pair port of

the Agilent 4294A. If another accessory like a cable or adapter is inserted between the 16048G or 16048H and the four-terminal pair port of the Agilent 4294A, the correct adapter setup data cannot be obtained and correct device measurement cannot be performed after the adapter setup.

Step 2. More than 30 minutes warm-up time is required after turning on the Agilent 4294A. Step 3. Make the correct adapter selection for the 16048G o r 1604 8H in accorda nce with “Adapt er

Selection” on page 68.

Step 4. After performing Step 4 of “Adapter Selection” on page 68, press the

SETUP key to

display the Adapter Setup Menu.

Step 5. Connect the Lcur and Lpot terminals on the 16048G or 16048H to the Hpot and Hcur

terminals of the 100 Ω Resister (furnished with the Agilent 4294A, Agilent Part Number: 04294-61001) as shown in Figure 4-2. Other terminals should remain open.

Figure 4-2 Connecting 100 Ω Resister (Phase Compensation Data Measurement)

Step 6. Press the

PHASE COMP [-] key to start the phase compensation data measurement.

NOTE The traces on the LCD display do not change during the phase compensation data

measurement. When the phase compensation data measurement is completed, the softkey label changes

to PHASE COMP [DONE].

Step 7. Connect the Lcur, Lpot, Hpot, and Hcur terminals on the 16048G or 16048H to the Lcur,

Lpot, Hpot and Hcur terminals of the 100 Ω Resister as shown in Figure 4-3.

Chapter 4 71

Preparation of Measurement Accessories

Adapter Setting

Figure 4-3 Connecting 100 Ω Resister (Load Data Measurement)

Step 8. Press the

LOAD [-] key to start the load data measurement.

NOTE When the load data measurement is completed, the softkey label changes to

LOAD [DONE].

Step 9. Press the

done key to start calculating the adapter setup data from the measured phase

compensation and load data. The adapter setup data is automatically saved to the EEPROM (nonvolatile memory) in the Agilent 4294A.

NOTE Press the cancel key to cancel the adapter setup process. If the adapter setup process is

canceled, the previously obtained data is saved as the available adapter setup data.

Adapter Setup Procedure for the 16334A

Perform the adapter setup for the 16334A Tweezers Type Test Fixture in accordance with the following procedure:

NOTE Adapter setup should be performed at an ambient temperature as close as possible to the

temperature in which the device measurement will actually be made. If the ambient temperature for your measurement is outside the range of ±5°C from the

adapter setup temperature, it is recommended that you perform adapter setup again at the appropriate temperature.

It takes a few minutes to complete each setup data measurement. During each data measurement, the message “WAIT--MEASURING ADJUSTMENT

KIT” is displayed in the instrument state area in the LCD's upper-left side.

Step 1. Make sure that the 16334A is correctly connected to the four-terminal pair port of the

72 Chapter 4

Prepar ation of Measurement Accessories

Adapter Setting

Agilent 4294A.

NOTE The 16334A must be directly connected to the four-terminal pair port of the Agilent

4294A. If another accessory su ch as a cable or adapter is inserted between the 16334A and the four-terminal pair port of the Agilent 4294A, the correct adapter setup data cannot be obtained and correct device measurement cannot be performed after the adapter setup.

Step 2. More than 30 minutes warm-up time is required after turning on the Agilent 4294A. Step 3. Make the correct adapter selection for the 16334A in accordance with the “Adapter

Selection” on page 68.

Step 4. After performing Step 4 of the “Adapter Selection” on page 68, press the

SETUP key to

display the Adapter Setup Menu.

Step 5. Put the device contacts of the 16334A into the OPEN condition. Refer to the operation

manual of the 16334A for instructions on switching to the OPEN condition.

Step 6. Press the

PHASE COMP [-] key to start the phase compensation data measurement.

NOTE The traces on the LCD display do not change during the phase compensation data

measurement. When the phase compensation data measurement is completed, the softkey label changes

to PHASE COMP [DONE].

Step 7. Connect a 100 Ω LOAD device to the 16334A. Step 8. Press the

LOAD [-] key to start the load data measurement.

NOTE When the load data measurement is completed, the softkey label changes to

LOAD [DONE].

Step 9. Press the

done key to start calculating the adapter setup data from the measured phase

compensation and load data. The adapter setup data is automatically saved to the EEPROM (nonvolatile memory) in the Agilent 4294A.

NOTE Press the cancel key to cancel the adapter setup process. If the adapter setup process is

canceled, the previously obtained data is saved as the available adapter setup data.

Adapter Setup Procedure for the 16451B

Perform the adapter setup for the 16451B Dielectric Test Fixture in accordance with the following procedure:

NOTE Adapter setup should be performed at an ambient temperature as close as possible to the

temperature in which the device measurement will actually be made. If the ambient temperature for your measurement is outside the range of ±5°C from the

adapter setup temperature, it is recommended that you perform adapter setup again at the appropriate temperature.

It takes a few minutes to complete each setup data measurement.

Chapter 4 73

Preparation of Measurement Accessories

Adapter Setting

During each data measurement, the message “WAIT--MEASURING ADJUSTMENT KIT” is displayed in the instrument state area in the LCD's upper-left side.

Step 1. Make sure that the 16451B is correctly connected to the four-terminal pair port of the

Agilent 4294A.

NOTE The 16451B Dielectric Test Fixture must be directly connected to the four-terminal pair

port of the Agilent 4294A. If another accessory such as a cable or adapter is inserted between the 16451B and the four-terminal pair port of the Agilent 4294A, the correct adapter setup data cannot be obtained and correct device measurement cannot be performed after the adapter setup.

Step 2. More than 30 minutes warm-up time is required after turning on the Agilent 4294A. Step 3. Make the correct adapter selection for the 16451B in accord ance with “Adap ter Selection”

on page 68.

Step 4. After performing Step 4 of “Adapter Selection” on page 68, press the

SETUP key to

display the Adapter Setup Menu.

Step 5. Put the device contacts of the 16451B into the OPEN condition. Refer to the operation

manual of the 16451B for instructions on switching to the OPEN condition.

Step 6. Press the

PHASE COMP [-] key to start the phase compensation data measurement.

NOTE The traces on the LCD display do not change during the phase compensation data

measurement. When the phase compensation data measurement is completed, the softkey label changes

to PHASECOMP[DONE].

Step 7. Press

done key to start calculating the adapter setup d ata from the measured load data. Th e

adapter setup data is automatically saved to the EEPROM (nonvolatile memory) in the Agilent 4294A.

NOTE Press the cancel key to cancel the adapter setup process. If the adapter setup process is

canceled, the previously obtained data is saved as the available adapter setup data.

Adapter Setup Procedure for the 42942A

Perform the adapter setup for the 42942A Terminal Adapter in accordance with the following procedure (operation manual of the 42942A also describes the adapter setup procedure).

NOTE Adapter setup should be performed at an ambient temperature as close as possible to the

temperature in which the device measurement will actually be made. If the ambient temperature for your measurement is outside the range of ±5°C from the

adapter setup temperature, it is recommended that you perform adapter setup again at the appropriate temperature.

It takes a few minutes to complete each setup data measurement. During each data measurement, the message “WAIT--MEASURING ADJUSTMENT

74 Chapter 4

KIT” is displayed in the instrument state area in the LCD's upper-left side.

Step 1. Make sure that the 42942A is correctly connected to the four-terminal pair port of the

Agilent 4294A.

Figure 4-4 Connecting the 42942A

Prepar ation of Measurement Accessories

Adapter Setting

NOTE The 42942A must be directly connected to the four-terminal pair port of the Agilent

4294A. If another accessory su ch as a cable or adapter is inserted between the 42942A and the four-terminal pair port of the Agilent 4294A, the correct adapter setup data cannot be obtained and correct device measurement cannot be performed after the adapter setup.

Step 2. More than 30 minutes warm-up time is required after turning on the Agilent 4294A. Step 3. Make the correct adapter selection for the 42942A in accordance with “Adapter Selection”

on page 68.

Step 4. After performing Step 4 of “Adapter Selection” on page 68, press the

SETUP key to

display the Adapter Setup Menu.

Step 5. Connect OPEN (0 S) t o the 7-mm port of the 4294 2A (the OP EN standard i s furnis hed with

the 42942A Terminal Adapter).

Chapter 4 75

Preparation of Measurement Accessories

Adapter Setting

Figure 4-5 Connecting OPEN (0 S) to the 42942A

Step 6. Press the

PHASE COMP [-] key to start the phase compensation data measurement.

NOTE The traces on the LCD display do not change during the phase compensation data

measurement. When the phase compensation data measurement is completed, the softkey label changes

to PHASECOMP[DONE].

Step 7. With the OPEN (0 S) standard connected to the 7-mm port, press the

OPEN [-] key to start

the open data measurement.

NOTE When the load data measurement is completed, the softkey label changes to

OPEN [DONE].

Step 8. Remove the OPEN (0 S) standard from the 7-mm port of the 42942A. Then connect the

SHORT (0 Ω) standard to the 7-mm port (the SHORT standard is furnished with the 42942A Terminal Adapter).

76 Chapter 4

Figure 4-6 Connecting SHORT (0 Ω) to the 42942A

Prepar ation of Measurement Accessories

Adapter Setting

Step 9. Press the

SHORT [-] key to start the short data measurement.

NOTE When the short data measurement is completed, the softkey label changes to

SHORT [DONE].

Step 10. Remove the SHORT (0 Ω) standard from the 7-mm port of the 42942A. Then connect the

LOAD (50 Ω) standard to the 7-mm port (the LOAD standard is furnished with the 42942A Terminal Adapter).

Chapter 4 77

Preparation of Measurement Accessories

Adapter Setting

Figure 4-7 Connecting LOAD (50 Ω) to the 42942A

Step 11 . Press the

LOAD [-] key to start the load data measurement.

NOTE When the load data measurement is completed, the softkey label changes to

LOAD [DONE].

Step 12. Press the

done key to start calculating the adapter setup data from the measured OPEN,

SHORT, and LOAD data. The adapter setup data is automatically saved to the EEPROM (nonvolatile memory) in the Agilent 4294A.

NOTE Press the cancel key to cancel the adapter setup process. If the adapter setup process is

canceled, the previously obtained data is saved as the available adapter setup data.

Adapter Setup Procedure for the 42941A

Perform the adapter setup for the 42941A Impedance Probe in accordance with the following procedure (the o peration manual for the 4 2941A al so descri bes the adapter setu p procedure).

NOTE Adapter setup should be performed at an ambient temperature as close as possible to the

temperature in which the device measurement will actually be made. If the ambient temperature for your measurement is outside the range of ±5°C from the

adapter setup temperature, it is recommended that you perform adapter setup again at the appropriate temperature.

It takes a few minutes to complete each setup data measurement. During each data measurement, the message “WAIT--MEASURING ADJUSTMENT

KIT” is displayed in the instrument state area in the LCD's upper-left side.

78 Chapter 4

Step 1. Make sure that the 42941A is correctly connected to the four-terminal pair port of the

Agilent 4294A.

Figure 4-8 Connecting the 42941A

Prepar ation of Measurement Accessories

Adapter Setting

NOTE The 42941A must be directly connected to the four-terminal pair port of the Agilent

4294A. If another accessory su ch as a cable or adapter is inserted between the 42941A and the four-terminal pair port of the Agilent 4294A, the correct adapter setup data cannot be obtained and correct device measurement cannot be performed after the adapter setup.

Step 2. More than 30 minutes warm-up time is required after turning on the Agilent 4294A. Step 3. Make the correct adapter selection for the 42941A in accordance with the “Adapter

Selection” on page 68.

Step 4. After performing Step 4 of the “Adapter Selection” on page 68, press the

SETUP key to

display the Adapter Setup Menu.

Step 5. Leave the 3.5-mm port of the 42941A open (no connection). There is no OPEN standard

for the 42941A.

Step 6. Press the

PHASE COMP [-] key to start the phase compensation data measurement.

NOTE The traces on the LCD display do not change during the phase compensation data

measurement. When the phase compensation data measurement is completed, the softkey label changes

to PHASE COMP [DONE].

Step 7. With nothing connected to the 3.5-mm port, press the

OPEN [-] key to start open data

measurement.

Chapter 4 79

Preparation of Measurement Accessories

Adapter Setting

NOTE When the load data measurement is completed, the softkey label changes to

OPEN [DONE].

Step 8. Connect the SHOR T (0 Ω, HRM 504) to the 3.5-mm port (the SHORT is furnished with the

42941A Impedance Probe).

Step 9. Press the

SHORT [-] key to start the short data measurement.

NOTE When the short data measurement is completed, the softkey label changes to

SHORT [DONE].

Step 10. Remove the SHORT (0 Ω, HRM 504) from the 3.5-mm port of the 42941A. Then connect

the LOAD (50 Ω, HRM 601) to the 3.5-mm port (the LOAD is furnished with the 42941A Impedance Probe).

Step 11 . Press the

LOAD [-] key to start the load data measurement.

NOTE When the load data measurement is completed, the softkey label changes to

LOAD [DONE].

Step 12. Press the

done key to start calculating the adapter setup data from the measured phase

compensation, OPEN, SHORT, and LOAD data. The adapter setup data is automatically saved to the EEPROM (nonvolatile memory) in the Agilent 4294A.

NOTE Press the cancel key to cancel the adapter setup process. If the adapter setup process is

canceled, the previously obtained data is saved as the available adapter setup data.

80 Chapter 4

5 Setting Measurement Conditions

This chapter explains how to set up the measurement conditions for the Agilent 4294A Precision Impedance Analyzer, including the measurement signal and sweep.

NOTE Be sure to perform the “adapter setting” before starting your measurement. See “Adapter

Setting” on page 67 for how to perform the adapter setting.

Setting Measurement Conditions

Putting the Agilent 4294A into the Preset State (Presetting)

Step 1. Press the [Preset] key.

Executing presetting will put the Agilent 4294A into an initial state called the “preset state.”

When turning on the power to the Agilent 4294A, a power- on st ate file is loaded to rest ore the setting stored in the file if it has been saved in the mass storage of the Agilent 4294A. We recommend that you to perform presetting by pressing the put the Agilent 4294A into a new setting, regardless of whether it is done immediately after turning the power on.

[Preset] key each time you

Note that the adapter setting is not affected by initialization with the set, it cannot be modified by pressing the [Preset] key.

[Preset] key; once it is

82 Chapter 5

Setting Measurement Conditions

Selecting Trace (Active Trace)

The Agilent 4294A can display the measurement results of one sweep measurement in two traces (waveforms) on the screen. These traces are called trace A and trace B. Various conditions or analyses can be applied to these traces independently, while others can be applied to them in common, such as the sweep range.

Step 1. Press one of the following keys to select a trace for setting conditions or for analysis.

Active trace Key stroke

Trace A Trace B [B]

[A]

The settings using the following keys (key operations) can be specified for trace A and trace B independently. Before making settings with these keys (key operations), be sure to check and select the active trace.

•[Format]

• [Display] - DEF TRACE [] (except for DATA → MEMORY)

• [Display] - OFFSET

• [Display] - more 1/2 - TITLE

• [Scale Ref]

• Keys in the MARKER block The settings using keys other than those above can be commonly applied to trace A and

trace B. Therefore, you do not have to select the active trace or check its state before making those settings. However, there are some exceptions. Refer to the operational procedure of each function for details.

Chapter 5 83

Setting Measurement Conditions

Selecting Sweep Parameter

Step 1. Press the [Sweep] key. Step 2. Press the PARAMETER [ ] key. Step 3. Select the desired sweep parameter

Sweep parameter Key stroke

Frequency Oscillator level (voltage or current) OSC LEVEL dc bias DC BIAS

FREQ

NOTE When selecting the oscillator level as a sweep parameter, follow the steps shown in

“Selecting Unit for Oscillator Level (Voltage or Current)” on page 106 to select sweeping by voltage or current level.

When selecting the dc bias as a sweep parameter, proceed to the setting shown in “Setting and Applying dc Bias” on page 107.

The sweep parameter that is currently selected appears in the key label

PARAMETER [ ] key.

Softkey label Selecte d sweep parameter

PARAMETER [FREQ] Frequency PARAMETER [OLEV] Oscillator level (voltage or current) PARAMETER [DCB] dc bias

[ ] of the

NOTE See “Using Time as Sweep Parameter (Zero Span Sweep)” on page 94 for the

measurement with time as a sweep parameter (zero span measurement). The sweep parameter can be set to trace A and trace B in common. It is not necessary to

select an active trace or to verify the current selection before setting the parameter.

84 Chapter 5

Figure 5-1 Sweep by Frequency

Setting Measurement Conditions

Selecting Sweep Par a met e r

Figure 5-2 Sweep by signal source current level

Chapter 5 85

Setting Measurement Conditions

Selecting Sweep Parameter

Figure 5-3 Sweep by dc current bias (Constant dc bias current mode)

86 Chapter 5

Selecting Linear, Log, or List Sweep

Step 1. Press the [Sweep] key to display the sweep menu. Step 2. Press the TYPE [ ] key to display th e sweep type menu. Step 3. Press one of the following keys to select the sweep type.

Sweep type Key stroke

Setting Measurement Conditions

Linear sweep Log (logarithm) sweep LOG List sweep LIST

LINEAR

NOTE If the oscillator level or the dc bias is selected as the sweep parameter, you cannot select the

log sweep. For how to select the sweep parameter, refer to Appendix , “Selecting Sweep Parameter,” on page 84.

List sweep cannot be selected unless a list sweep table is prepared. Refer to “Sweeping Multiple Sweep Ranges with Different Conditions in a Single Action (List Sweep)” on page 116 to create the list sweep table.

The sweep type that is currently selected appears in the key label

Softkey label Selecte d sweep parameter

TYPE [FREQ] Linear sweep TYPE [LOG] Log sweep TYPE [LIST] List sweep

[ ] of the TYPE [ ] key.

NOTE The sweep type can be set to trace A and tr ace B in common. I t is n ot necessary to select an

active trace or to verify the current selection before setting the sweep type.

Chapter 5 87

Setting Measurement Conditions

Selecting Linear, Log, or List Sweep

Figure 5-4 Linear sweep

Figure 5-5 Log (logarithm) sweep

88 Chapter 5

Setting Measurement Conditions

Setting Sweep Range

Sweep range can be set by specifying either start and stop values or center and span values.

NOTE The measurement range can be set to trace A and trace B in common. It is not n ecessary to

select an active trace or to verify the current selection before setting the range.

Setting by start and stop values

Step 1. Press the [Start] key. This will display the current setting for sweep start value in the

parameter settings area located in the upper-left part of the screen.

Step 2. Use the keys or the rotary knob in the ENTRY block in one of the following ways to

specify a value for the sweep start.

• Enter the desired value with the numeric keys ( of the unit keys (

• Turn the rotary knob (❍

[G/n], [M/µ], [k/m], or [×1]).

❍) until the desired value is set.

❍❍

[0] to [9], [.], and [-]) and then press one

• Press the step keys ([↑][↓]) to set the desired value.

Step 3. Press the

[Stop] key. This will display the current setting for the sweep stop value in the

parameter settings area in the upper-left part of the screen.

Step 4. Use the keys or the rotary knob in the ENTRY block in one of the following ways to

specify a value for the sweep stop.

• Enter the desired value with the numeric keys ( of the unit keys (

• Turn the rotary knob (

[G/n], [M/µ], [k/m], or [×1]).

❍

❍) until the desired value is set.

❍❍

[0] to [9], [.], and [-]) and then press one

• Press the step keys ([↑][↓]) to set the desired value.

NOTE When the sweep parameter is set to frequency, the sweep start value cannot be greater than

the sweep stop value. Sweep with decreasing freq uency can b e po ssible by se tting a sw eep range with increasing frequency and then specifying a downward sweep direction. Refer to “Selecting Sweep Direction” on page 99 to specify the sweep direction.

Setting by center and span values

Step 1. Press the [Center] key. This will display the current setting for the sweep center value in

the parameter settings area located in the upper-left part of the screen.

Step 2. Use the keys or the rotary knob in the ENTRY block in one of the following ways to

specify a value for the sweep center.

• Enter the desired value with the numeric keys ( of the unit keys (

• Turn the rotary knob (❍

[G/n], [M/µ], [k/m], or [×1]).

❍) until the desired value is set.

❍❍

[0] to [9], [.], and [-]) and then press one

Chapter 5 89

Setting Measurement Conditions

Setting Sweep Range

• Press the step keys ([↑][↓]) to set the desired value.

Step 3. Press the

[Stop] key. This will display the current setting for the sweep stop value in the

parameter settings area in the upper-left part of the screen.

Step 4. Use the keys or the rotary knob in the ENTRY block in one of the following ways to

specify a value for the sweep stop.

• Enter the desired value with the numeric keys ( of the unit keys (

• Turn the rotary knob (

[G/n], [M/µ], [k/m], or [×1]).

❍

❍) until the desired value is set.

❍❍

[0] to [9], [.], and [-]) and then press one

• Press the step keys ([↑][↓]) to set the desired value.

Setting sweep range with marker

The sweep start value, sweep stop value, and sweep center value are set to the value indicated by the main marker on the trace. Also, the sweep span value can be set to the delta value between the main marker and ∆ marker.

Step 1. Specify the active trace (the trace for setting) as the trace having the main marker that you

want to use for setting a sweep range.

Active trace Key stroke

Trace A Trace B [B]

[A]

Step 2. Move the main marker to the point you want to use as a new sweep start value, sw eep stop

value, or sweep center value. The main marker can be moved in either of the following ways.

•Press the

[Marker] key to display the current sweep parameter value showing the

current main maker’s position in the parameter settings area in the upper-left part of the screen. Then, use the keys in the ENTRY block to move the main marker to the desired location.

•Press the

MAX, MIN, TARGET, and PEAK keys to locate the main marker to the desired position.

Step 3. Press the

[Search] key to display the search menu. Then, use the search function with

[Marker →] key to di splay the marker Æ menu.

Step 4. Select one of the following methods to specify the sweep start value, sweep stop value, or

sweep center value as the location of the current main marker.

Setting sweep range Key stroke

Specify a new sweep start value as the current main marker location.

Specify a new sweep stop value as the current main marker location.

Specify a new sweep center value as the current main marker location.

MKR → START

MKR → STOP

MKR → CENTER

90 Chapter 5

Setting Measurement Conditions

Setting sweep range Key stroke

Setting Sweep Range

Set the difference in the swee p parameter v alue

MKR ∆ → SPAN

between the current main marker positi on and

the delta marker position

as the new sweep

span value.

Search the trace for a peak2 and specify a new

more 1/2 - PEAK → CENTER

sweep center value as the location of the p eak found.

The current main marker position is set as the new sweep center value, and th e new sweep

more 1/2 - ZOOMING APERTURE to set the

zooming aperture, and then

MKR ZOOM

span value is set dependi ng on the specified zooming aperture

. As a result, the trace will be magnified (zoomed in) by focusing on the main marker position.

1. For how to use the main marker and the delta marker, refer to Chapter 8 , “Analysis and Processing of Result,” on page 211.

2. Refer to “Search the maximum/minimum peak” on page 228 and “Define the Peak” on page 232 for information on the peak search f unction.

3. For the ratio of the new sweep span value to the current sweep span value (%), you can set a value between 0.0 1% and 100% in steps of 0.0 1%. The power-on and preset settings are both 10%.

NOTE After you change the sweep range, the trace for the new sweep range will not be displayed

unless you perform a new sweep measurement.

Figure 5-6 Before

MKR → CENTER

Chapter 5 91

Setting Measurement Conditions

Setting Sweep Range

Figure 5-7 After MKR → CENTER

Figure 5-8

92 Chapter 5

Figure 5-9

Setting Measurement Conditions

Setting Sweep Range

Chapter 5 93

Setting Measurement Conditions

Using Time as Sweep Parameter (Zero Span Sweep)

Setting the sweep span to zero allows you to perform a measurement with time as a sweep parameter. This kind of sweep is also called zero span sweep.

Step 1. Press the

[Sweep] key to display th e sweep menu.

Step 2. Press the PARAMETER [ ] key to display the sweep parameter menu. Step 3. Press the Step 4. Press the

FREQ key to select frequency as a sweep parameter. [Span] key. This will display the current setting for sweep span value in the

parameter settings area in the upper-left part of the screen.

Step 5. Press Step 6. Press the

[0] - [×1] to set the sweep span value to zero.

[Center] key. At this point, the value displayed in the parameter settings area in

the upper-left part of the screen shows that the signal source used has a fixed, not swept, frequency.

Step 7. Use the keys or the rotary knob in the ENTRY block in one of the following ways to set the

fixed freq uency displayed on the s creen.

• Enter the desired value with the numeric keys ( of the unit keys (

• Turn the rotary knob (❍

[G/n], [M/µ], [k/m], or [×1]).

❍) until the desired value is set.

❍❍

[0] to [9], [.], and [-]) and then press one

• Press the step keys ([↑][↓]) to set the desired value.

Step 8. Press the

[Sweep] key to display the sweep menu.

Step 9. Press the TIME key to display the sweep time menu.

Step 10. Press the

SWEEP TIME key. This will display the current setting for sweep time in the

parameter settings area in the upper-left part of the screen. In other words, this shows the current sweep span value in the time sweep.

Step 11 . Use the keys or the rotary knob in the ENTRY block in one of the following ways to

specify a value for the sweep time (sweep span).

• Enter the desired value with the numeric keys ( of the unit keys (

• Turn the rotary knob (

[G/n], [M/µ], [k/m], or [×1]).

❍

❍) until the desired value is set.

❍❍

[0] to [9], [.], and [-]) and then press one

• Press the step keys ([↑][↓]) to set the desired value.

NOTE Sweep time (sweep span value) can be set up to 10,000 seconds (approx. 2.8 hours).

When using a marker immediately after setting the zero span sweep from the preset state, the sweep parameter value shown by the marker in the parameter settings area in the upper-left part of the screen is indicated by a measurement point number (serial number s from 1 to the number of points for all measurement points). At the same time, an identical value entered with the

[Center] key for all measurement points is indicated in the marker

sweep parameter area in the upper-right p art of the screen . This sweep parameter v alue can be converted into a time-based value for display by pressing the

94 Chapter 5

Setting Measurement Conditions

Using Time as Sweep Parameter (Zero Span Sweep)

[Utility] - MKR X-AXIS [ ] - TIME keys.

Sweep parameters other than frequency can be selected in Step 3. In such a case, the fixed value for the signal source is reflected in the selected parameter in Steps 5 and 6.

Settings for signal sources other than the fixed value in Steps 5 and 6 can be made in the signal source menu, which can be accessed by pressing the

[Source] key.

The zero span sweep can also be achieved with the sweep start value and sweep stop value as the same value.

Figure 5-10 Sweep span value = 20 kHz

[Start] and [Stop] keys to specify the

Chapter 5 95

Setting Measurement Conditions

Using Time as Sweep Parameter (Zero Span Sweep)

Figure 5-11 Sweep span value = 0 Hz (zero span sweep)

96 Chapter 5

Setting Measurement Conditions

Setting Number of Points (NOP)

Step 1. Press [Sweep] to display the sweep menu. Step 2. Press the NUMBER OF POINTS key. This will display the current setting for number of

points in the parameter settings area in the upper-left part of the screen.

Step 3. Use keys or the rotary knob in the ENTRY block in one of the following ways to specify a

value for the number of points.

• Enter the desi red value with the numeric keys (

• Turn the rotary knob (

• Press the step keys ([↑][↓]) to set the desired value.

NOTE The number of sweep points can be set to any integer from 2 to 801.

When list is selected as a sweep type (list sweep), use a list sweep table to set the number of points.

Setting the number of points is applied commonly to traces A and B.

Figure 5-12 Number of points: 51

❍

❍) until the desired value is set.

❍❍

[0] to [9]) and then press the [×1] key.

Chapter 5 97

Setting Measurement Conditions

Setting Number of Points (NOP)

Figure 5-13 Number of points: 801

98 Chapter 5

Setting Measurement Conditions

Selecting Sweep Direction

DUT can be measured in the desired sweep direction when its characteristics has hysteresis with the sweep parameter.

Step 1. Press the

[Sweep] key to display th e sweep menu.

Step 2. Press the DIRECTION [ ] key to select the desired sweep direction (pr essing the key toggles

the direction).

Softkey label Selected sweep direction

DIRECTION [UP] Upward (from sweep start value to sweep stop

value)

DIRECTION [DOWN] Downward (from sweep stop value to sweep

start value)

NOTE Setting the sweep direction is applied commonly to traces A and B.

Chapter 5 99

Setting Measurement Conditions

Manual Sweep (Measurement at a Specified Point)

In the normal sweep mode, the Agilent 4294A performs measurement by automatically changing the measurement point in response to triggering. When the set of measurements performed is as many as the number of points, this is regarded as one sweep. On the other hand, in the manual sweep mode the Agilent 4294A does not automatically change measurement points (sweep), and the meas urement at a single point s pecified by the user is regarded as one sweep. Since the measurement point can be arbitrarily specified by the user, this function can be called a user-defined manual sweep. The Agilent 4294A will continue measurement (sweep) at the same point unless it is changed by the user. Follow the steps below to execute the manual sweep.

Step 1. Press the Step 2. Press the

the softkey label to

[Sweep] key to display th e sweep menu. MANUAL SWP on OFF key to turn the manual sweep function ON. Th is changes

MANUAL SWP ON off. At the same time, the current measurement

point “1” for manual sweep and sweep parameter value for the point are displayed in the parameter settings area located in the upper left of the screen.

Step 3. Use the keys or the rotary knob in the ENTRY block in one of the following ways to

specify the measurement point (any integer value from 1 to the number of points).

• Enter the desired value with the numeric keys (

[×1] key.

❍

• Turn the rotary knob (

❍) until the desired value is set.

❍❍

[0] to [9], [.], and [-]) and then press the

• Press the step keys ([↑][↓]) to set the desired value.

NOTE Instead of directly setting the measurement point by using the keys or the rotary knob in the

ENTRY block, it can be set by moving the main marker to your desired point for the manual sweep and pressing the

[Marker →] - MKR → MANUAL SWP keys. This operation

can assign the manual sweep point to the location of the main marker and is effective before activating the manual sweep.

When you turn the sweep function ON and specify a measurement point, no measurement is performed at the point as long as the sweep mode is disabled or the trigger is not generated.

The number of points can be commonly set to traces A and B.

100 Chapter 5

Agilent 4294A Operations Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Agilent 4294A Precision Impedance Analyzer

Operation Manual

Part No. 04294-90020

December 1999

Printed in: Japan

Notices

Manual Printing History

April 1999 First Edition May 1999 Second Edition December 1999 Third Edition

Safety Summary

Safety Symbols

General definitions of safety symbols used on the instrument or in manuals are listed belo w.

Certification

Warranty

Limitation of Warranty

Exclusive Remedies

Assistance

Typeface Conventions

Bold Boldface type is use d when a term is defined.

Italic Italic type is used for emphasis and for titl es

[Hardkey] Indicates a hardkey labeled “Hardkey.” Softkey Indicates a softkey labeled “Softkey.” [Hardkey] - Softkey1 - Softkey2 Indicates keystrokes [Hardkey] - Softkey1 -

Agilent 4294A Documentation Map

The following manuals are available for the Agilent 4294A.

• Operation Manual (Agilent P/N: 04294-900x0)

• Programming Manual (Agilent P/N: 04294-900x1)

• HP Instrument BASIC User's Handbook (Agilent P/N: E2083-90005)

• Service Manual (Agilent P/N: 04294-90100, Option 0BW only)

1 Installation

Incoming Inspection

Incoming Inspection

Description Quantity

4294A 4294A Precision Impedance Analyzer 1 04294-900x0 Operation Manual (this guide) 1 04294-900x1 Programming Manual 1 E2083-90005 HP Instrument BASIC User's Handbook 1 04294-901x0

Service Manual

04294-180x0 Sample Program Disk (3.5-inch floppy disk) 1 04294-61001 100 Ω resistor (for adapter s etup) 1 C3757-60401

Mini-DIN keyboard

8120-4753 Power Cable 1 1250-1859

5062-3991

5062-3979

BNC Adapter

Handle Kit

Rack Mount Kit

5062-3985

Rack Mount & Handle Kit

Precautions to Take Before Setting Up the Power Supply

Precautions to Take Before Setting Up the Power Supply

The Agilent 4294A requires the following fuse:

UL/CSA type, time delay, 5 A 250 Vac (Agilent part number 2110-0030)

Power Source Requirements

The Agilent 4294A requires a power source that meets the following specifications. Voltage: 90 to 132 Vac or 198 to 264 Vac (auto select) Frequency: 47 to 63 Hz Power consumption: 300 VA (max)

Power Cable

Power Cable

Connecting the BNC Adapter (for Option 1D5 Only)

Connecting the BNC Adapter (for Option 1D5 Only)

Using the LAN Port

Using the LAN Port

Connecting the Supplied Keyboard

Connecting the Supplied Keyboard

Step 2. Set the keyboard in a comfortable position.

Using a Rackmount Kit

Using a Rackmount Kit

Option ID Description Agilent part number

1CN Handle Kit 5062-3991

1CM Rackmount Kit 5062-3979

1CP Rackmount & Handle Kit 5062-3985

Option 1CN Handle Kit

Installing the Handles

Step 2. Attach the front handles (3) to the side faces with the supplied screws.

Step 3. Attach the trim strips (4) to the handles.

Option 1CM Rackmount Kit

Mounting the Agilent 4294A on a Rack

Step 4. Mount the 4294A on the rack.

Option 1CP Rackmount & Handle Kit

Option 1CP includes two flanges and two handles along with their attachments.

Mounting the Agilent 4294A on a Rack (w ith Handles)

Step 4. Mount the 4294A on the rack.

Environmental Requirements

Environmental Requirements