Keysight E4980A, E4980AAL User Manual

Keysight E4980A/AL Precision LCR Meter

User’s Guide

Notices

2006-2017

No part of this manual may be reproduced in any form or by any means (including electronic storage and retrieval or translation into a foreign language) without prior agreement and written consent from Keysight Technologies, Inc. as governed by United States and international copyright laws.

Trademark Acknowledgments

Manual Part Number

E4980-90220

Edition

Edition 1, October 2017

COVERING THE MATERIAL IN THIS DOCUMENT THAT CONFLICT WITH THESE TERMS, THE WARRANTY TERMS IN THE SEPARATE AGREEMENT WILL CONTROL.

Technology Licenses

The hardware and/or software described in this document are furnished under a license and may be used or copied only in accordance with the terms of such license.

Declaration of Conformity

Declarations of Conformity for this product and for other Keysight products may be downloaded from the Web. Go to

http://www.keysight.com/go/confor mity. You can then search by product

number to find the latest Declaration of Conformity.

perform, display, or disclose commercial computer software or commercial computer software documentation. No additional government requirements beyond those set forth in the EULA shall apply, except to the extent that those terms, rights, or licenses are explicitly required from all providers of commercial computer software pursuant to the FAR and the DFARS and are set forth specifically in writing elsewhere in the EULA. Keysight shall be under no obligation to update, revise or otherwise modify the Software. With respect to any technical data as defined by FAR

2.101, pursuant to FAR 12.211 and

27.404.2 and DFARS 227.7102, the U.S. government acquires no greater than Limited Rights as defined in FAR

27.401 or DFAR 227.7103-5 (c), as applicable in any technical data.

Printed in Malaysia

Published by:

Keysight Technologies International Japan G.K,

1-3-3 Higashikawasaki-cho Chuo-ku Kobe-shi, Hyogo, Japan

Warranty

THE MATERIAL CONTAINED IN THIS DOCUMENT IS PROVIDED “AS IS,” AND IS SUBJECT TO BEING CHANGED, WITHOUT NOTICE, IN FUTURE EDITIONS. FURTHER, TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, KEYSIGHT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED WITH REGARD TO THIS MANUAL AND ANY INFORMATION CONTAINED HEREIN, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. KEYSIGHT SHALL NOT BE LIABLE FOR ERRORS OR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH THE FURNISHING, USE, OR PERFORMANCE OF THIS DOCUMENT OR ANY INFORMATION CONTAINED HEREIN. SHOULD KEYSIGHT AND THE USER HAVE A SEPARATE WRITTEN AGREEMENT WITH WARRANTY TERMS

U.S. Government Rights

The Software is “commercial computer software,” as defined by Federal Acquisition Regulation (“FAR”) 2.101. Pursuant to FAR

12.212 and 27.405-3 and Department of Defense FAR Supplement (“DFARS”) 227.7202, the U.S. government acquires commercial computer software under the same terms by which the software is customarily provided to the public. Accordingly, Keysight provides the Software to U.S. government customers under its standard commercial license, which is embodied in its End User License Agreement (EULA), a copy of which can be found at

http://www.keysight.com/find/sweul aThe license set forth in the EULA

represents the exclusive authority by which the U.S. government may use, modify, distribute, or disclose the Software. The EULA and the license set forth therein, does not require or permit, among other things, that Keysight: (1) Furnish technical information related to commercial computer software or commercial computer software documentation that is not customarily provided to the public; or (2) Relinquish to, or otherwise provide, the government rights in excess of these rights customarily provided to the public to use, modify, reproduce, release,

Safety Notices

A CAUTION notice denotes a hazard. It calls attention to an operating procedure, practice, or the like that, if not correctly performed or adhered to, could result in damage to the product or loss of important data. Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met.

A WARNING notice denotes a hazard. It calls attention to an operating procedure, practice, or the like that, if not correctly performed or adhered to, could result in personal injury or death. Do not proceed beyond a WARNING notice until the indicated conditions are fully understood and met.

Table of Contents

1. Unpacking and Preparation

Contents of this Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Checking the Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Preparations before Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Verifying the Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Setting up the Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Verifying and Connecting the Power Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

How to Remove the Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Caution when Using the Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Operating Environments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Ventilation Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Protection Against Electrostatic Discharge (ESD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Ensuring Adequate Free Space around the LCR meter for Immediate Disconnection of the

Power Cable in Case of Emergency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Starting the E4980A/AL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Turning the Power ON and OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Disconnecting from the Supply Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Contents

2. Overview

Product Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Front Panel: Names and Functions of Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

1. Power switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2. LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

3. Softkeys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

4. Menu keys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5. Cursor keys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6. Entry keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

7. LED indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

8. Preset key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

9. Trigger key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10. DC Bias key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

11. DC Source key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

12. UNKNOWN terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

13. Front USB port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

14. Ground terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

15. DC Source terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Rear Panel: Names and Functions of Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

1. GPIB Interface Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

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2. Interface Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

3. USB (USBTMC) Interface Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

4. LAN Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5. External Trigger Input Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

6. Serial Number Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

7. Power Cable Receptacle (to LINE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

8. Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Screen Area: Names and Functions of Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

1. Display Page Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

2. Comment Line Area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

3. Softkey Area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

4. Measurement Data/Conditions Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

5. Input Line Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

6. System Message Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

7. Status Display Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

How to Use Cursor Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

How to Use Skip Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

3. Display Format

MEAS DISPLAY Page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

Measurement Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

Impedance range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

Test Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

Test Signal Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

DC Bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64

Measurement Time Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68

Display Setting for Measurement Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69

Displaying Errors instead of Measurement Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71

Monitor Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

BIN NO. DISPLAY Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76

Comparator Function ON/OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77

BIN COUNT DISPLAY Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

Counter Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81

LIST SWEEP DISPLAY Page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82

Sweep Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84

DISPLAY BLANK Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86

4. Configuring Measurement Conditions (Display and Function Related Settings)

Initializing the Instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87

MEAS SETUP page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88

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Contents

Comment line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Trigger mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Automatic level control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

DC Bias Current Isolation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Averaging Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Trigger Delay Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Step Delay Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

DC Bias Voltage Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

DC Bias Current Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

DCR Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

DCI Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

DC Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Automatic Bias Polarity Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Deviation Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

CORRECTION page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

To set the correction function to on or off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

The correction functions of the E4980A/AL are operated as follows:. . . . . . . . . . . . . . . 114

Open Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Short Correction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Correction Based on User-Specified Frequency Points. . . . . . . . . . . . . . . . . . . . . . . . . . 119

Relationships between Correction Based on All Frequency Points and Correction Based on

Specified Frequency Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Reading/Writing Correction Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Measurement Functions for the Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Selecting Single/Multiple Correction Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Selecting the Cable Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

LIMIT TABLE SETUP Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

Parameter Swap Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Comparator Limit Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Tolerance Mode Nominal Value. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Turning On/Off the Comparator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Turning On/Off the Auxiliary Bin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

Beep Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Lower and Upper Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

LIST SWEEP SETUP Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

Sweep Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

List Sweep Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

Sweep Points and Limit Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Sweep Parameter Auto-completion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

5. System Configurations

SYSTEM INFO Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

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Handler Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .152

Scanner Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .153

Monitor Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .153

SYSTEM CONFIG Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .154

Turning On/Off the Beep Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .155

Changing the Beep Tone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .156

Changing the Beep Tone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .157

Configuring the System Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .157

Configuring the GPIB Address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .159

Configuring the LAN IP address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .160

SELF TEST Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .162

Choosing a Test Item. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .163

SERVICE Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .164

Monitor Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .165

Saving the System Information into External Memory . . . . . . . . . . . . . . . . . . . . . . . . . . .165

6. Save/Recall

Overview of Save/Recall Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .167

Save Methods and Their Uses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .167

Folder/File Structure on USB Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .168

USB Memory Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .169

Saving/Recalling Instrument Configuration States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .170

Overview of Instrument Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .170

Medium Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .171

Choosing a Register Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .172

Memory Status Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .172

Comment Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .173

Saving/Recalling Instrument Configuration States into/from the Internal Memory . . . .173

Saving/Recalling Instrument Configuration States into/from USB Memory. . . . . . . . . .175

Using the Auto Recall Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .177

Saving Measurement Results into USB Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .178

Measurement Result Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .178

To save measurement results into USB memory: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .181

How to save the measurement result of List Sweep Measurement to USB memory.. . .182

Saving a Screenshot into USB Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .184

To save a screenshot into USB memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .184

7. Measurement Procedure and Examples

Basic Measurement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .185

Impedance Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .187

Parallel/Series Circuit Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .190

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Selecting Circuit Mode of Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191

Selecting Circuit Mode of Inductance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192

Test Signal Level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Test Signal Level Across the DUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Test Signal Level Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

Four-Terminal Pair Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195

Measurement Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197

Capacitance to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197

Contact Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199

Extending Test Leads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200

Guarding for Measurement of Low Capacitance Values . . . . . . . . . . . . . . . . . . . . . . . . . 202

Shielding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203

Correction Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204

Performing OPEN Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

Performing SHORT Correction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

Performing LOAD Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

Parasitics Incident to DUT Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208

Characteristics Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209

Capacitor Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

Inductance Measurements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214

Measurements Using DC source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217

8. Overview of Remote Control

Types of remote control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221

GPIB remote control system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222

What is GPIB?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222

System configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222

Device selector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223

LAN remote control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224

System configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224

Control over SICL-LAN server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226

Control over telnet server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230

Control via Web server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233

USB Remote Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236

System configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236

Sending SCPI command messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242

Types and structure of commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242

Grammar of messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243

Remote mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244

Trigger System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245

Keysight E4980A/AL User’s Guide 7

Contents

System-wide states and transitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .245

Data Buffer Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .251

Data Buffer Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .251

When Data Buffer Memory is Used. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .252

Output Format of Data Buffer Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .254

Starting a Measurement Cycle (triggering the instrument) . . . . . . . . . . . . . . . . . . . . . . . . . .256

Configuring the instrument to automatically perform continuous measurement . . . . . .256

Starting Measurement on Demand. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .256

Waiting for the End of Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .258

Using the status register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .258

Data Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .260

Data Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .260

Status Byte. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .266

Enabling the Status Byte. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .268

Operation Status Register Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .269

Standard Event Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .272

Enabling the Event Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .275

9. Sample Program

Set Up Measurement Conditions and LCD Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .277

Detecting End of Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .282

Read Measurement Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .286

Read measurement data in ASCII format (Comparator) . . . . . . . . . . . . . . . . . . . . . . . . .286

Read measurement data in ASCII format (Data buffer memory) . . . . . . . . . . . . . . . . . . .289

Read measurement data in ASCII format (List sweep). . . . . . . . . . . . . . . . . . . . . . . . . . .292

Read measurement data in BINARY (comparator) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .295

Read measurement data in BINARY format (Data buffer memory) . . . . . . . . . . . . . . . . .299

Read measurement data in BINARY format (List sweep). . . . . . . . . . . . . . . . . . . . . . . . .302

Save/Recall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .305

Read/Write correction data at specified frequency points. . . . . . . . . . . . . . . . . . . . . . . . . . .308

10. SCPI Command Reference

Notational conventions in this command reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .316

Syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .316

Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .316

Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .316

Equivalent key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .317

E4980A/AL commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .318

*CLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .318

*ESE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .318

*ESR? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .318

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*IDN?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

*LRN? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

*OPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

*OPC? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

*OPT? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

*RST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

*SRE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

*STB? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

*TRG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

*TST?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

*WAI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321

:ABORt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321

:AMPLitude:ALC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321

:APERture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321

:BIAS:CURRent[:LEVel]. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322

:BIAS:POLarity:AUTO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323

:BIAS:POLarity:CURRent[:LEVel]? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323

:BIAS:POLarity:VOLTage[:LEVel]?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323

:BIAS:RANGe:AUTO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323

:BIAS:STATe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324

:BIAS:VOLTage[:LEVel] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324

:COMParator:ABIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325

:COMParator:BEEPer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325

:COMParator:BIN:CLEar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326

:COMParator:BIN:COUNt:CLEar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326

:COMParator:BIN:COUNt:DATA? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326

:COMParator:BIN:COUNt[:STATe] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326

:COMParator:MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327

:COMParator:SEQuence:BIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327

:COMParator:SLIMit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328

:COMParator[:STATe] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328

:COMParator:SWAP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329

:COMParator:TOLerance:BIN[1-9] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329

:COMParator:TOLerance:NOMinal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330

:CONTrol:CBIas:STATe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330

:CONTrol:HANDler:STATe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330

:CONTrol:SCANner:STATe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331

:CORRection:LENGth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331

:CORRection:LOAD:STATe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332

:CORRection:LOAD:TYPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332

:CORRection:METHod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333

:CORRection:OPEN[:EXECute] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334

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:CORRection:OPEN:STATe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .334

:CORRection:SHORt[:EXECute]. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .334

:CORRection:SHORt:STATe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .334

:CORRection:SPOT[1-201]:FREQuency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335

:CORRection:SPOT[1-201]:LOAD[:EXECute] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .335

:CORRection:SPOT[1-201]:LOAD:STANdard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .335

:CORRection:SPOT[1-201]:OPEN[:EXECute] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .336

:CORRection:SPOT[1-201]:SHORt[:EXECute]. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .336

:CORRection:SPOT[1-201]:STATe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .336

:CORRection:USE[:CHANnel] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .337

:CORRection:USE:DATA[:MULTi] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .337

:CORRection:USE:DATA:SINGle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .338

:CURRent[:LEVel]. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .339

:DISPlay:CCLear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .339

:DISPlay:ENABle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .339

:DISPlay:LINE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .340

:DISPlay:PAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .340

:DISPlay[:WINDow]:TEXT[1-2][:DATA]:FMSD:DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . .341

:DISPlay[:WINDow]:TEXT[1-2][:DATA]:FMSD[:STATe]. . . . . . . . . . . . . . . . . . . . . . . . . . . .342

:FETCh[:IMPedance]:CORRected?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .342

:FETCh[:IMPedance][:FORMatted]?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .342

:FETCh:SMONitor:IAC? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .343

:FETCh:SMONitor:IDC? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .343

:FETCh:SMONitor:VAC?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .343

:FETCh:SMONitor:VDC? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .343

:FORMat:ASCii:LONG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .343

:FORMat:BORDer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .344

:FORMat[:DATA] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .344

:FREQuency[:CW] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .345

:FUNCtion:DCResistance:RANGe:AUTO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .345

:FUNCtion:DCResistance:RANGe[:VALue] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .346

:FUNCtion:DEV[1-2]:MODE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .346

:FUNCtion:DEV[1-2]:REFerence:FILL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .347

:FUNCtion:DEV[1-2]:REFerence[:VALue] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .347

:FUNCtion:IMPedance:RANGe:AUTO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .347

:FUNCtion:IMPedance:RANGe[:VALue] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .348

:FUNCtion:IMPedance[:TYPE] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .348

:FUNCtion:SMONitor:IAC[:STATe] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .349

:FUNCtion:SMONitor:IDC[:STATe] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .350

:FUNCtion:SMONitor:VAC[:STATe] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .350

:FUNCtion:SMONitor:VDC[:STATe] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .351

:HCOPy:SDUMp:DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .351

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:INITiate:CONTinuous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352

:INITiate[:IMMediate] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352

:LIST:BAND[1-201] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352

:LIST:BIAS:CURRent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353

:LIST:BIAS:VOLTage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354

:LIST:CLEar:ALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354

:LIST:CURRent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354

:LIST:DCSource:VOLTage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355

:LIST:FREQuency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355

:LIST:MODE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356

:LIST:SEQuence:TSTamp:CLEar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356

:LIST:SEQuence:TSTamp:DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356

:LIST:STIMulus:DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357

:LIST:STIMulus:MDATa? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357

:LIST:STIMulus:TYPE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357

:LIST:VOLTage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358

:MEMory:CLEar. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

:MEMory:DIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

:MEMory:FILL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360

:MEMory:READ? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360

:MMEMory:DELete[:REGister] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360

:MMEMory:LOAD:STATe[:REGister] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360

:MMEMory:STORe:STATe[:REGister] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361

:OUTPut:DC:ISOLation:LEVel:AUTO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361

:OUTPut:DC:ISOLation:LEVel:VALue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362

:OUTPut:DC:ISOLation[:STATe] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362

:OUTPut:HPOWer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362

:SOURce:DCSource:STATe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363

:SOURce:DCSource:VOLTage[:LEVel] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363

:STATus:OPERation:CONDition?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364

:STATus:OPERation:ENABle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364

:STATus:OPERation[:EVENt] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364

:SYSTem:BEEPer[:IMMediate] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365

:SYSTem:BEEPer:STATe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365

:SYSTem:BEEPer:TONE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365

:SYSTem:COMMunicate:GPIB[:SELF]:ADDRess . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366

:SYSTem:COMMunicate:LAN[:SELF]:ADDRess . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366

:SYSTem:COMMunicate:LAN[:SELF]:AIP[:STATe] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366

:SYSTem:COMMunicate:LAN[:SELF]:CONFigure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367

:SYSTem:COMMunicate:LAN[:SELF]:CONTrol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367

:SYSTem:COMMunicate:LAN[:SELF]:CURRent:ADDRess? . . . . . . . . . . . . . . . . . . . . . . . 368

:SYSTem:COMMunicate:LAN[:SELF]:CURRent:DGATeway? . . . . . . . . . . . . . . . . . . . . . . 368

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:SYSTem:COMMunicate:LAN[:SELF]:CURRent:SMASk? . . . . . . . . . . . . . . . . . . . . . . . . .368

:SYSTem:COMMunicate:LAN[:SELF]:DGATeway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .368

:SYSTem:COMMunicate:LAN[:SELF]:DHCP[:STATe]. . . . . . . . . . . . . . . . . . . . . . . . . . . . .368

:SYSTem:COMMunicate:LAN[:SELF]:MAC? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .369

:SYSTem:COMMunicate:LAN[:SELF]:PRESet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .369

:SYSTem:COMMunicate:LAN[:SELF]:RESTart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .369

:SYSTem:COMMunicate:LAN[:SELF]:SMASk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .370

:SYSTem:DATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .370

:SYSTem:ERRor[:NEXT]? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .371

:SYSTem:KLOCk. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .371

:SYSTem:PERSona:MANufacturer[:NAME] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .371

:SYSTem:PERSona:MANufacturer:DEFault. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .372

:SYSTem:PRESet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .372

:SYSTem:RESTart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .372

:SYSTem:TIME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .372

:TRIGger:DELay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .373

:TRIGger[:IMMediate] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .373

:TRIGger:SOURce . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .374

:TRIGger:TDEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .374

:VOLTage[:LEVel] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .375

Command list. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .376

List by function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .376

Command Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .383

Softkey Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .392

Data Processing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .410

11. Specifications and Supplemental Information

12. Precautions for Use and Daily Checks

Precautions for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .413

Avoiding improper input from the front panel (key lock function) . . . . . . . . . . . . . . . . . .413

Daily Checks (Executing the self-test) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .415

Self-test at power on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .415

Executing the self-test from the front panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .415

Cleaning this Instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .417

Unknown Terminals/DC Source Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .417

Cleaning Parts Other than Unknown Terminals and DC Source Ports . . . . . . . . . . . . . .417

Cautions Applicable to Requesting Repair, Replacement, Regular Calibration, etc. . . . . . .418

Caution when Sending the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .418

Recommended Calibration Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .418

13. Troubleshooting

12 Keysight E4980A/AL User’s Guide

Check Items When Trouble Occurs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 419

The system does not start up (Nothing is displayed) . . . . . . . . . . . . . . . . . . . . . . . . . . . 419

The system starts up, but the normal measurement screen does not appear (Service Mode) 419

An overload message is displayed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420

Beeping persists when turning on the comparator function. . . . . . . . . . . . . . . . . . . . . . 420

The front panel keys are unavailable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420

Clearly abnormal measured value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 421

Saving to USB memory fails. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 421

An error message or warning message is displayed . . . . . . . . . . . . . . . . . . . . . . . . . . . . 421

Check Items When Trouble Occurs During Remote Control. . . . . . . . . . . . . . . . . . . . . . . . . 422

The instrument does not respond to the external controller or malfunctions . . . . . . . . 422

You cannot read out the measured value.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 422

An error message is displayed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 422

A.Manual Changes

Manual Changes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 423

Change 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 424

Change 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 424

Change 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 424

Change 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 424

Change 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 424

Contents

B.Error Messages

Error Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427

A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427

B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427

C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 428

D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 428

E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 429

F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 430

G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 430

H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 431

I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 431

M. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 432

N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 432

O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 433

P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 433

Q . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 433

R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 434

S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 434

T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 435

Keysight E4980A/AL User’s Guide 13

Contents

U. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .435

V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .435

Warning Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .436

Numeric . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .436

A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .436

C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .436

I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .437

S. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .437

C.List of Default Values

List of Default Values, Save/Recall Settings, and Backup Settings. . . . . . . . . . . . . . . . . . . .440

List of Default Values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .441

List of LAN Factory Default Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .445

D.Bias Current Interface

Product Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .448

42841A Bias Current Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .448

Operation Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .448

Specifications when Measuring with the 42841A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .449

Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .450

Equipment Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .450

Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .450

Measurement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .454

E.Handler Interface

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .455

Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .456

Output Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .456

Input Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .456

Signal Line Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .457

Signal Line Definitions for the Comparator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .457

Signal Line Definitions for the List Sweep Comparator . . . . . . . . . . . . . . . . . . . . . . . . . .463

Electrical Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .468

DC Isolation Output Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .468

DC isolation input signals (photo-coupled) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .470

Setting Up the Handler Interface Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .473

Using the Handler Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .480

Setting Up the Handler Interface for Use with the Comparator . . . . . . . . . . . . . . . . . . .480

Setting Up the Handler Interface Board for Use with the List Sweep Comparator. . . . .481

Signals Activated when Overload Occurs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .482

14 Keysight E4980A/AL User’s Guide

F.Scanner Interface

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 484

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 485

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 485

Supplemental Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 485

Signal Input/Output Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 486

Scanner Interface Input/Output Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 486

Scanner Interface I/O Connector Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 488

Timing Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 490

Electrical Characteristics of the Input/Output Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 494

Channel Selection Input Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 494

External Trigger Input Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 494

Control Output Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 497

Setting Up the Scanner Interface Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 498

How to Use the Scanner Interface Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500

Basic Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500

Activating Scanner Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 502

Correction Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 502

Test Frequency and Reference Value Entry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 502

Correction Data Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 504

Correction Data Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 506

Activating the Correction Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 507

Correction Data Confirmation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 507

Contents

G.Functional Comparison between 4284A, 4279A and E4980A/AL

Functional Comparison between 4284A, 4279A, and E4980A/AL . . . . . . . . . . . . . . . . . . . . 511

Keysight E4980A/AL User’s Guide 15

Contents

16 Keysight E4980A/AL User’s Guide

Keysight E4980A/AL Precision LCR Meter

User’s Guide

1 Unpacking and Preparation

This chapter describes how to set up and start the Keysight E4980A/AL Precision LCR Meter.

Contents of this Chapter

- Checking the Shipment on page?

After you receive the E4980A/AL, check all the items in the packing container.

- Preparation before Use on page?

Shows how to check the power supply as well as check and connect the power cable. This section also describes how to deal with a blown fuse.

- How to Remove the Handle on page?

Shows how to attach and remove the handle.

- Environmental Requirements on page?

Describes the system requirements needed to install the E4980A/AL and how to secure space for heat radiation.

- Starting the E4980A/AL on page?

Describes how to turn on/off the power switch and cut off the power supply.

Unpacking and Preparation Checking the Shipment

Checking the Shipment

After you receive the E4980A/AL, carry out checks during unpacking according to the following procedure.

If the external face of the LCR meter (such as the cover, front/rear panel, LCD screen, power switch, and port connectors) appears to have been damaged during transport, do not turn on the power switch. Otherwise, you may get an electrical shock.

Step 1. Check that the packing box or shock-absorbing material used to package the

LCR meter has not been damaged.

If the packing box or shock-absorbing material has been damaged, leave the packing box and shock-absorbing material as is until other inspection items are checked as follows:

Step 2. Check the packaged items supplied with the LCR meter for any damage or

defects.

Step 3. Referring to Table 1-1 and Figure 1-1, check that all packaged items supplied

with the LCR meter have been provided as per the specified options.

Step 4. After checking, if one of the following applies, contact your nearest Keysight

Technologies sales and service office.

1. The packing box or shock-absorbing material used to package the LCR meter has been damaged or the shock-absorbing material displays traces of where extreme pressure has been applied.

2. A packaged item supplied with the LCR meter has mechanical damage or defects.

3. A packaged item supplied with the LCR meter is missing.

4. A fault has been detected in the subsequent operation check of the LCR meter.

If an abnormality is detected in Step 1, contact the company that transported the LCR meter as well as your nearest Keysight Technologies sales and service office. For inspection by the transport company, save the packing box, shock-absorbing material, and packaged items as you received them.

18 Keysight E4980A/AL Precision LCR Meter

Unpacking and Preparation Checking the Shipment

Table 1-1 Items Packaged with the E4980A/AL

Name Product/Part

Number

Standard Accessories

- E4980A/AL E4980A/AL 1

-Power Cable

8120-4753 1

-USB Cable 82357-61601 1

-CD-ROM (of the manual and the sample program)

-CD-ROM (of the Keysight IO Libraries suite)

See footnote

Options

-Manual (Option ABA)

• User’s Guide

-Rack mount kit without handles (Option 1CM)

1. This accessory varies from country to country. For the power cable option, see

See footnote

5063-9241 1

Table 1-3. A 3p-2p conversion adapter is not supplied.

2. The LCR meter will always be supplied with the latest versions of these items.

3. This accessory is not shown in refer to the attached manual.

Figure 1-1. For how to install the rack mount kit,

Qty

Keysight E4980A/AL Precision LCR Meter 19

㪼㪋㪐㪏㪇㪸㫌㪼㪈㪇㪉㪉

E4980A

Precision LCR Meter

20 Hz - 2 MHz

CUR

POT

CUR

DC Bias

USB

Source

UNKNOWN

Discharge test device before connecting

r42V Peak Max Output CAT I

r10VDC Max

DC Source (Option 001)

Trigger

DC Bias

Source

Return

789

456

123

Preset

Display Format

Meas Setup

Recall A Recall B

Save/ Recall

System

Local/ Lock

㪪㫋㪸㫅㪻㪸㫉㪻㩷㪘㪺㪺㪼㫊㫊㫆㫉㫀㪼㫊㪦㫇㫋㫀㫆㫅

㪜㪋㪐㪏㪇㪘

㪧㫆㫎㪼㫉㩷㪚㪸㪹㫃㪼

㪚㪛㪄㪩㪦㪤㬍㪉

㪬㪪㪙㩷㪚㪸㪹㫃㪼

㪬㫊㪼㫉㩾㫊㩷㪞㫌㫀㪻㪼

Unpacking and Preparation Checking the Shipment

Figure 1-1 E4980A/AL Accessories

20 Keysight E4980A/AL Precision LCR Meter

Unpacking and Preparation

㪼㪋㪐㪏㪇㪸㫌㪼㪈㪇㪇㪏

㪝㫌㫊㪼㩷㪿㫆㫃㪻㪼㫉

㪧㫆㫎㪼㫉㩷㪚㪸㪹㫃㪼㩷㪠㫅㫃㪼㫋

Preparations before Use

Verifying the Power Supply

Confirm that the power supplied to the E4980A/AL meets the following requirements:

Table 1-2 Power Supply Requirements

Requirements

Voltage

90 to 132 Vac or 198 to 264 Vac

Frequency 47 to 63 Hz

Maximum power

150 VA

consumption

1. Switched automatically by the E4980A/AL in conformity with the voltage used.

Setting up the Fuse

Please use the following fuse type. UL/CSA type, Slo-Blo, 520-mm miniature fuse, 3 A, 250 V (Keysight part

number 2110-1017)

When you need a fuse, contact your nearest Keysight Technologies sales and service office. To verify and replace the fuse, remove the power cable and pull out the fuse holder.

Figure 1-2 Fuse Holder and Power Cable Receptacle

Keysight E4980A/AL Precision LCR Meter 21

Unpacking and Preparation Preparations before Use

Verifying and Connecting the Power Cable

The three-wire power cable attached to the E4980A/AL has one wire serving as a ground. Using this power cable allows the E4980A/AL to be grounded, thereby protecting you against electrical shock from the power outlet.

Step 1. Confirm that the power cable is not damaged.

Never use a power cable showing any sign of damage. Faulty cables can cause electric shock.

Step 2. Use the supplied cable to connect the power cable receptacle on the real

panel of the E4980A/AL to a three-wire power outlet with the grounding prong firmly held in the ground slot.

Use the supplied three-wire power cable with a grounding wire to securely ground the E4980A/AL.

A 3p-2p conversion adapter is not supplied with the LCR meter. When you need a 3p-2p conversion adapter, contact your nearest Keysight Technologies sales and service office listed in the back of this manual.

Figure 1-3 shows the power cable options.

22 Keysight E4980A/AL Precision LCR Meter

Unpacking and Preparation Preparations before Use

Figure 1-3 Power cable options

Keysight E4980A/AL Precision LCR Meter 23

㪼㪋㪐㪏㪇㪸㫌㫁㪈㪈㪌㪈

㽲

㽳

㽴

Unpacking and Preparation How to Remove the Handle

How to Remove the Handle

A handle kit is attached to the E4980A/AL. When using the E4980A/AL with the rack-mount kit, remove the handle according to the following steps.

Figure 1-4 How to remove the handle

Step 1. Lift the handle perpendicular to the unit while pulling it in the direction of 1.

Step 2. While pulling the handle in the direction of 1, lift towards 2.

Install the handle with 3 facing toward the front. Installing the handle the other way around may damage it.

24 Keysight E4980A/AL Precision LCR Meter

Unpacking and Preparation

㪼㪋㪐㪏㪇㪸㫌㫁㪈㪈㪎㪌

Caution when Using the Handle

Follow the instructions below when using the E4980A/AL’s handle, otherwise you may get your fingers caught in the handle or the E4980A/AL may fall and be damaged

• When the handle is set up as shown in Figure 1-5, do not put any additional

weight onto the E4980A/AL or lift it suddenly.

• Do not touch the handle while the DUT is attached.

Figure 1-5 The handle in the set-up position

Keysight E4980A/AL Precision LCR Meter 25

Unpacking and Preparation Environmental Requirements

Environmental Requirements

Set up the E4980A/AL where the following environmental requirements are satisfied.

Operating Environments

Ensure that the operating environment meets the following requirements.

Table 1-3 Operating Environments Requirements

Temperature 0ºC to 55ºC

Temperature range at calibration

23ºC  5ºC (<1ºC deviation from the temperature when performing calibration)

Humidity 15% to 85% at wet bulb temperature  40ºC

(non-condensation)

Altitude 0 to 2,000 m (0 to 6,561 feet)

Vibration Max. 0.5 G, 5 Hz to 500 Hz

The environmental requirements listed above are NOT for the specifications and measurement accuracy of the E4980A/AL, but for its operating environment.

26 Keysight E4980A/AL Precision LCR Meter

Unpacking and Preparation Environmental Requirements

Ventilation Requirements

To ensure that the safety requirements, the specifications, and the measurement accuracy of the LCR meter are met, you must maintain the environmental temperature to within the specified range by providing an appropriate cooling clearance around the LCR meter or, for the rack-mounted type, by forcefully air-cooling inside the rack housing. For more information on environmental temperatures that satisfy the specifications and measurement accuracy of the LCR meter, see Chapter 11, “Specifications and Supplemental

Information”, on page 411.

The LCR meter conforms to the requirements of the safety standard.When the environmental temperature around the LCR meter is kept within the temperature range of the operating environment specifications (“Operating

Environments” on page 26).

The LCR meter still conforms to the requirements of the safety standard it is installed with the following cooling clearance:

Requirements

Back  180 mm

Sides  60 mm (both right and left)

Figure 1-6 Ventilation space at installation

Keysight E4980A/AL Precision LCR Meter 27

Unpacking and Preparation Environmental Requirements

Protection Against Electrostatic Discharge (ESD)

Figure 1-7 shows the setup for a static-safe work station to protect the

electronic components from damage by electrostatic discharge (ESD).

Figure 1-7 Example of a static-free work station

Ensuring Adequate Free Space around the LCR meter for Immediate Disconnection of the Power Cable in Case of Emergency

As described in “Disconnecting from the Supply Source” on page 30, the plug attached to the power cable serves as the disconnecting device (device that cuts off the power supply) for the E4980A/AL. When installing the E4980A/AL, ensure that there is sufficient free space around the unit to permit quick disconnection of the plug (from the AC outlet or the E4980A/AL unit) in case of emergency.

28 Keysight E4980A/AL Precision LCR Meter

Unpacking and Preparation Starting the E4980A/AL

Starting the E4980A/AL

This section describes how to turn on/off the E4980A/AL power and how to cut off the power supply in an emergency.

Turning the Power ON and OFF

Turning the Power ON

The ON and OFF status of the power switch is confirmed by the color of the

switch.

Table 1-4

Color of the light Status of the power

Orange Power on

Yellow-green Power off

Light off Power off (The power supply is cut off)

Step 1. Confirm that the power switch light in the lower-left part of the front

panel is lit in orange. If the light is off, the power supply may also be off.

Step 2. Press the power switch. When the light of the power switch turns

yellow-green, the power is turned ON and the E4980A/AL starts the self-test.

The self-test takes approx. 30 seconds.

Step 3. Confirm that the self-test indicates normal operation.

Normal operation is confirmed by the self-test if no error message appears.

Turning the Power OFF

Step 1. Follow the method below to turn the power OFF.

• Press the power switch in the lower-left part of the front panel.

Do not turn the power OFF while saving into or recalling from the internal memory of the E4980A/AL or the USB memory. Doing so may clear the contents from the memory.

Keysight E4980A/AL Precision LCR Meter 29

Unpacking and Preparation Starting the E4980A/AL

Disconnecting from the Supply Source

The plug attached to the power cable (on the power outlet side or device side of the cable) serves as the disconnecting device (device that cuts off the power supply) of the E4980A/AL. When the power supply must be cut off to avoid such danger as electric shock, pull out the power cable’s plug (on the power outlet side or device side of the cable).

To allow this operation to be performed smoothly, be sure to follow the guidelines in “Ensuring Adequate Free Space around the LCR meter for

Immediate Disconnection of the Power Cable in Case of Emergency” on page 28.

When turning the power OFF under normal circumstances, always follow the methods described in “Turning the Power ON and OFF” on page 29.

30 Keysight E4980A/AL Precision LCR Meter

Keysight E4980A/AL Precision LCR Meter

User’s Guide

2 Overview

This chapter provides the basic procedures for operating the E4980A/AL and describes names and functions of the front panel, rear panel, and screen display.

Product Introduction

The Keysight E4980A/AL is a general-purpose LCR meter for incoming inspection of components, quality control, and laboratory use. The E4980A/AL is used for evaluating LCR components, materials, and semiconductor devices over a wide range of frequencies (20 Hz to 300 kHz/500 kHz/1 MHz/2 MHz) and test signal levels (0.1 mVrms to 2 Vrms, 50 A to 20 mArms). With Option 001, the E4980A/AL’s test signal level range spans 0.1 mV to 20 Vrms, and 50

A to 200 mArms. Also, the E4980A/AL with Option 001 enables up to 40-Vrms DC bias measurements (without Option 001, up to  2 Vrms), DCR

measurements, and DC source measurements using the internal voltage source.

The E4980A/AL offers C-D measurement with a basic accuracy of 0.05% (C), 0.0005 (D) at all frequencies with seven-digit resolution (the dissipation factor resolution is 1 ppm) in every range.

With its built-in comparator, the E4980A/AL can output comparison/decision results for sorting components into a maximum of ten bins. Furthermore, by using the handler interface and scanner interface options, the E4980A/AL can be easily combined with a component handler, a scanner, and a system controller to fully automate component testing, sorting, and quality-control data processing.

The E4980A/AL’s list sweep function permits entry of up to 201 frequencies, test signal levels, or bias level points to be automatically measured.

The GP-IB/LAN/USB interfaces are standard interfaces on the E4980A/AL and enable automatic testing.

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UNKNOWN

Discharge test device before connecting r42V Peak Max Output CAT I

DC Source (Option 001)

Trigger

DC Bias

Source

Return

789

456

123

Preset

Display Format

Meas Setup

Recall A Recall B

Save/ Recall

System

Local/ Lock

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Overview Front Panel: Names and Functions of Parts

Front Panel: Names and Functions of Parts

This section describes the names and functions of the parts on the E4980A/AL’s front panel. For more details on the functions displayed on the LCD screen, see “Screen Area: Names and Functions of Parts” on page 40. For more about the functions of softkeys, see “Softkey Functions” on page 392.

Figure 2-1 Front panel

32 Keysight E4980A/AL Precision LCR Meter

A maximum of 52 V of hazardous voltage between terminals might be present when the LED indicator for DC Bias or DC Source lights up. Do NOT touch UNKNOWN terminals, DC source terminals, or electrodes of test fixtures.

Turn off the output of DC Bias and DC source and confirm that LED indicators are off when setting up the E4980A/AL and its accessories.

Overview Front Panel: Names and Functions of Parts

1. Power switch

Used for choosing between power-on and -off states of the E4980A/AL. When turned on, the switch lights up in yellow-green and all operating voltages are applied to the instrument. When turned off, the switch lights up in orange and no operating voltages are applied to the instrument.

2. LCD

The Liquid Crystal Display (LCD) displays measurement results, test conditions, etc.

Occasionally there are missing pixels or constantly lit pixels, but this is not a malfunction and does not affect the performance of your product.

3. Softkeys

Five softkeys are used to select measurement conditions and parameter functions. Each softkey has a softkey label along its left side.

4. Menu keys

Menu selection keys are used to access the corresponding selection of instrument controls.

Table 2-1 Menu Keys

[Display Format] key Displays measurement results and selections.

[Meas Setup] key Sets measurement conditions, a correction function, and

[Recall A] key Recalls the setting information on internal memory 0.

[Recall B] key Recalls the setting information on internal memory 1.

[Save/Recall] key Saves and recalls the setting information. Saves

[System] key Sets the system. Sets the GP-IB interface and LAN.

[Local/Lock] key Locks and unlocks hard keys and softkeys on the front

5. Cursor keys

limit values for BIN sorting.

measurement results and screen images.

Performs a self-test.

panel. Cancels remote control with GPIB commands.

Keys used to move the field select cursor from field to field on a displayed page. When the cursor is moved to a certain field, that field changes to an inverse video image of the original field. The cursor can only be moved from field to field.

For the skip key, refer to the “How to Use Skip Keys” on page 44.

Keysight E4980A/AL Precision LCR Meter 33

Overview Front Panel: Names and Functions of Parts

6. Entry keys

Keys used to enter numeric data into the E4980A/AL. The entry keys comprise the digits 0 to 9, a period (.), and a plus/minus (+/-) sign. Entered values are displayed on the input line (second line from the bottom of the LCD screen), and pressing the softkey terminates numeric input. The plus/minus key deletes the last character of the input value.

7. LED indicator

The LED indicator lights up when DC Bias or DC Source is on. The USB indicator lights up while accessing a USB memory.

8. Preset key

A key used to return the LCR meter to the initial setup state. There are three methods for initialization. For details, refer to “Initializing the Instrument” on

page 87.

9. Trigger key

A key used to manually trigger the E4980A/AL when it is set to the manual trigger mode.

10. DC Bias key

A key used to toggle on and off of the DC bias output. When the DC bias output is set to on, the DC bias indicator lights up and DCBIAS is displayed in the status display area on the screen.

If the DC Bias key is set to off, even though the DC bias is set to on according to the LCD display, the DC bias is not output.

Regardless of which page is displayed, when the DC BIAS key is pressed, the value that has been set in the BIAS field of MEAS SETUP (and MEAS DISPLAY) is output. For example, in case that DC Bias sweep has been set with the LIST SWEEP DISPLAY page displayed, the value set in the BIAS field is output when the DC BIAS key is pressed. Then, after the E4980A/AL is triggered, the DC Bias is set according to the list that has been set.

11. DC Source key

A key used to toggle on and off of the DC source output. When the DC source output is set to on, the DC Source indicator lights up and DCSRC is displayed in the status display area on the screen.

Option 001 is required for this function.

34 Keysight E4980A/AL Precision LCR Meter

Overview Front Panel: Names and Functions of Parts

Regardless of which page is displayed, when the DC SOURCE key is pressed, the value that has been set in the DC SRC field of MEAS SETUP is output. For example, in case that DC SRC sweep has been set with the LIST SWEEP DISPLAY page displayed, the value set in the DC SRC field is output when the DC SRC key is pressed. Then, after the E4980A/AL is triggered, the DC Source is set according to the list that has been set.

12. UNKNOWN terminals

These are the UNKNOWN terminals used to connect a four-terminal pair test fixture or test leads for measuring the device under test (DUT).

When using a four-terminal pair test fixture or test leads with a stopper, remove the stopper or the bumper of the E4980A/AL.

Do not apply DC voltage or current to the UNKNOWN terminals. Applying DC voltage or current may lead to device failure. Connect the measurement sample (DUT) to the test port (or the test fixture, cables, etc. connected to the test port) after the LCR meter has been completely discharged.

The maximum load the UNKNOWN terminals can withstand is 10 kgf (nominal).

The test ports comply with Installation Category I of IEC 61010-1.

13. Front USB port

This port is used to save data in a USB memory. The USB indicator lights up while accessing the USB memory.

Connector types: Universal Serial Bus (USB) Jack, Type A (four contact points), Female.

Compliance Standards: USB 1.1

Do not connect any device other than a USB memory to the USB port. We do not support connections to the USB port of printers, devices with a built-in HDD, or USB hubs. To print a screen, refer to “To save a screenshot

into USB memory” on page 184.

Do not unplug the USB memory while the USB indicator is on.

Keysight E4980A/AL Precision LCR Meter 35

Overview Front Panel: Names and Functions of Parts

USB memory type

Use USB memory that is USB mass-storage-class compliant and formatted with FAT16 or FAT32. For points to notice, refer to “USB Memory Notes” on

page 169.

Interface: USB 1.1

14. Ground terminal

Connected to the chassis of the E4980A/AL. This is used for measurements that require guarding.

15. DC Source terminal

Outputs the DC source in the range from -10 V to 10 V. Option 001 is required for this function.

The DC source terminal is installed even in the E4980A/AL without Option 001; however, the E4980A/AL without Option 001 cannot use this terminal.

36 Keysight E4980A/AL Precision LCR Meter

Overview

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Rear Panel: Names and Functions of Parts

This section describes the names and functions of the parts on the E4980A/AL’s rear panel.

Figure 2-2 Rear panel

1. GPIB Interface Connector

General Purpose Interface Bus (GPIB). The connection of an external controller and other devices through this connector allows you to configure an automatic measurement system.

2. Interface Connector

If interface options are installed, the interface connectors will be installed as shown. If the E4980A/AL is not equipped with an interface option, blank panels will cover this portion.

Interfaces with which the E4980A/AL can be equipped as options are shown below.

Handler interface (Option E4980A/AL-201)

This interface is for data exchange with an automatic machine (handler) used on a production line.

Connector type: 36-pin Centronics

Keysight E4980A/AL Precision LCR Meter 37

Overview Rear Panel: Names and Functions of Parts

Scanner interface (Option E4980A/AL-301)

The interface to connect a scanner to perform up to 128 sets of multi-channel corrections and measurements.

Connector type: 14-pin Amphenol

3. USB (USBTMC) Interface Port

Through this port, you can control the E4980A/AL via external controllers.

Connector Types: Universal Serial Bus (USB) jack, type mini-B (five contact points), Female

Compliance Standards: USBTMC-USB488 and USB2.0

4. LAN Port

The port to connect the E4980A/AL to a LAN (Local Area Network). Connecting this instrument to a LAN enables you to control this instrument by using SICL-LAN or telnet, or from an external PC via a Web server.

This is compliant with LXI standard (LAN eXtensions for Instrumentation): version 1.4 Class C.

Connector type: 8-pin RJ-45 connector Compliance Standard: 10Base-T/100Base-TX Ethernet (automatic data rate selection)

Auto-MDIX function is effective on S/N MY4620XXX or later.

5. External Trigger Input Connector

The BNC connector to input the positive TTL pulse to trigger the E4980A/AL with external trigger signals.(The trigger mode must be set to EXTernal.)

6. Serial Number Plate

The seal showing the product’s serial number.

38 Keysight E4980A/AL Precision LCR Meter

Overview Rear Panel: Names and Functions of Parts

7. Power Cable Receptacle (to LINE)

The receptacle (outlet) to which the power cable is connected.

To connect the device to a power source (outlet), use the supplied three-prong power cable with a ground conductor.

The plug attached to the power cable (on the power outlet side or device side of the cable) serves as the E4980A/AL’s disconnecting device (device that cuts off the power supply). When the power supply must be cut off to avoid such danger as electric shock, pull out the power cable plug (on the power outlet side or device side of the cable). For the procedure for turning off the power in normal use, see the description in “1. Power switch” on

page 33.

For more on the power supply, see “Verifying and Connecting the Power

Cable” on page 22.

8. Fan

The cooling fan for controlling the temperature inside the E4980A/AL. This fan extracts heated air from inside the LCR meter.

Keysight E4980A/AL Precision LCR Meter 39

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Overview Screen Area: Names and Functions of Parts

Screen Area: Names and Functions of Parts

This section describes the names and functions of parts on the E4980A/AL’s LCD screen.

Figure 2-3 Screen display

1. Display Page Area

Shows a display page name of the current display page. On each display page, three lines are collected together as one area.

2. Comment Line Area

You can input up to 30 characters in ASCII format by using the front panel or the DISPlay:LINE command of the GPIB command. The first 22 characters are displayed in this area.

This area is displayed on the following display pages.

• MEAS DISPLAY page

•BIN No. DISPLAY page

•BIN COUNT DISPLAY page

• LIST SWEEP DISPLAY page

• MEAS SETUP page

For the input method in the comment line, refer to “MEAS SETUP page” on

page 88.

40 Keysight E4980A/AL Precision LCR Meter

Overview

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Return Return

Screen Area: Names and Functions of Parts

3. Softkey Area

Displays softkey labels corresponding to the field.

A displayed to the right of a softkey indicates that pressing that softkey will display the softkey label one level lower.

Pressing the Return key when the lower level softkey label is displayed will display the softkey label one level higher. In this case, a is displayed on the label to the left of the Return key.

Figure 2-4 Softkey Area

4. Measurement Data/Conditions Area

Displays measurement conditions and measurement results.

Under certain conditions one of the following messages may be displayed instead of the measurement results. For details, refer to “Displaying Errors

instead of Measurement Results” on page 71.

Message Description

OVERLOAD This message is displayed when an overload occurs.

For details, refer to “Displaying Errors instead of

Measurement Results” on page 71.

--- This means that no measurement has been made or the data format will not hold the measurement results.

INFINITY This message is displayed when a deviation mode of

the deviation measurement function is % and measurement results cannot be calculated.

Keysight E4980A/AL Precision LCR Meter 41

Overview Screen Area: Names and Functions of Parts

5. Input Line Area

Displays numeric values entered with the entry key.

6. System Message Area

Displays a system message, warning, and error message.

7. Status Display Area

Displays the status when DC bias or DC source is on, or any front panel key is locked. When sending SCPI commands from the external controller, “RMT” is displayed and the front panel keys are locked.

42 Keysight E4980A/AL Precision LCR Meter

Basic Operation

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㽳

㽲

How to Use Cursor Keys

Overview Basic Operation

The E4980A/AL’s basic operation is described below.

1. Display the desired page using both the MENU keys and softkeys.

2. Move the cursor to the desired field using the cursor keys. When the cursor is moved to a certain field, the field changes to an inverse video image of the original. The cursor can be moved from field to field (right and left or up and down).

3. The softkey labels corresponding to the field indicated by the cursor are displayed automatically. Press the desired softkey.

Use the entry keys to input numeric data. When one of the entry keys is pressed, the softkeys will change to the available unit softkeys. Pressing these unit softkeys terminates numeric input.

The unit changes according to the field selected.

Move the cursor to the desired field using the cursor keys as shown in Figure

2-5.

Figure 2-5 Cursor keys and a field operation example

Keysight E4980A/AL Precision LCR Meter 43

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Return

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㽲

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Overview Basic Operation

How to Use Skip Keys

The following describes how to use a skip key.

On a display page, three lines are collected together as one. By using a skip key, you can select the desired field quickly as the selected field moves from area to area.

Figure 2-6 Skip key and a field operation example

44 Keysight E4980A/AL Precision LCR Meter

Keysight E4980A/AL Precision LCR Meter

User’s Guide

3 Display Format

This chapter describes each page of the DISPLAY FORMAT MENU of the E4980A/AL.

MEAS DISPLAY Page

When you press the [DISPLAY FORMAT] key, the MEAS DISPLAY page appears. The following measurement controls can be set on this page (The field in parenthesis is used to set measurement controls).

• Measurement Function (FUNC)

•Impedance range (RANGE)

• Test Frequency (FREQ)

• Test Signal Level (LEVEL)

• DC Bias (BIAS)

• Measurement Time Mode (MEAS TIME)

Figure 3-1 shows the available fields and the softkeys that correspond to the

fields on this page.

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Display Format MEAS DISPLAY Page

Figure 3-1 MEAS DISPLAY Page

Pressing the [DISPLAY FORMAT] key when Figure 3-1 is displayed enlarges the measurement result as shown in Figure 3-2. Pressing the [DISPLAY FORMAT] key again returns to the display in Figure 3-1.

Figure 3-2 The enlarged MEAS DISPLAY for measurement results

46 Keysight E4980A/AL Precision LCR Meter

Display Format MEAS DISPLAY Page

Measurement Function

The E4980A/AL simultaneously measures two components of the complex impedance (parameters) in a measurement cycle.

Regardless of the types of measurement parameters, the test signal voltage (VAC) and the test signal current (IAC) are measured at the same time. When the E4980A/AL is equipped with option 001, the DC bias voltage level (VDC) and the DC bias current level (IDC) are measured simultaneously.

Regardless of the types of measurement parameters, the measurement result for the R-X parameter can be obtained using the SCPI command.

DC resistance (Rdc) can be measured when the E4980A/AL is equipped with either option 001, 030/032, 050/052, 100/102, or 200,

DC voltage (Vdc), and DC current (Idc) can be measured when the E4980A/AL is equipped with option 001.

Types of measurement parameters

Types of measurement parameters are shown below.

Table 3-1 Measurement parameters

Primary parameter Secondary parameter

Cp D, Q, G, Rp

Cs D, Q, Rs

Z d, r

Y d, r

Vdc

1. This parameter can be set only when the E4980A/AL is equipped with either option 001, 030/032, 050/052, 100 or 200.

2. This parameter can be set only when the E4980A/AL is equipped with option 001.

D, Q, G, Rp, Rdc

D, Q, Rs, Rdc

Idc

When the measurement parameter is DC voltage measurement/DC current measurement (Vdc-Idc), set the setting value of the test signal level (LEVEL field) to 0 V for accurate measurement.

Keysight E4980A/AL Precision LCR Meter 47

Display Format MEAS DISPLAY Page

Measurement parameter descriptions

The primary parameter measurement result is located on the upper line and the secondary parameter measurement result is on the lower line in Figure 3-1

on page 46.

Each parameter is described below.

Table 3-2 Primary parameter

Parameter Description

Cp Capacitance value measured using the parallel equivalent circuit

model

Cs Capacitance value measured using the series equivalent circuit model

Lp Inductance value measured using the parallel equivalent circuit model

Ls Inductance value measured using the series equivalent circuit model

R Resistance

Z Absolute value of impedance

G Conductance

Y Absolute value of admittance

Vdc

1. This parameter can be set only when the E4980A/AL is equipped with option 001.

DC voltage

Table 3-3 Secondary parameter

Parameter Description

D Dissipation factor

Q Quality factor (inverse of dissipation factor)

G Conductance

Rs Equivalent series resistance measured using the series equivalent

circuit model

Rp Equivalent parallel resistance measured using the parallel equivalent

circuit model

X Reactance

B Sustenance

 Phase angle

Idc

48 Keysight E4980A/AL Precision LCR Meter

DC current

Display Format MEAS DISPLAY Page

Table 3-3 Secondary parameter

Parameter Description

Rdc

1. This parameter can be set only when the E4980A/AL is equipped with option 001.

2. This parameter can be set only when the E4980A/AL is equipped with either option 001, 030/032, 050/052, 100 or 200.

DC resistance

Equivalent parallel and serial combinations

The combinations of primary and secondary parameters, including the equivalent parallel and series combinations, are listed below.

Table 3-4 Measurement function

Primary parameter

ZZ-r

Y ----- Y-r

CCs-D

Series mode Parallel mode

Z-d

Cs-Q Cs-Rs

-----

Y-d

Cp-D Cp-Q Cp-G Cp-Rp

LLs-D

Ls-Q Ls-Rs Ls-Rdc

Lp-D Lp-Q Lp-G Lp-Rp Lp-Rdc

R R-X -----

G ----- G-B

Primary parameter Secondary parameter

Vdc Idc

Measurement function Vdc-Idc does not have the series mode and parallel mode.

Keysight E4980A/AL Precision LCR Meter 49

Display Format MEAS DISPLAY Page

Procedure for setting the measurement function

Step 1. Press the [Display Format] key.

Step 2. Press the MEAS DISPLAY softkey.

Step 3. Use the cursor keys to select the FUNC field.

Step 4. Use the softkeys to select the primary parameter.

Step 5. If the secondary parameter exists, select the secondary parameter from

measurement parameters displayed using the softkeys.

For the combinations of measurement parameters, refer to Table 3-1 on

page 47.

50 Keysight E4980A/AL Precision LCR Meter

Display Format MEAS DISPLAY Page

Impedance range

Impedance range mode

Two modes can be used to select the impedance range as shown in Table 3-5.

Table 3-5 Impedance range mode

Mode Function overview Ad vantage Disad vantage

Auto range  (auto selection)

Hold range (manual selection)

The E4980A/AL sets the optimum impedance range for the impedance of the DUT.

Measurement is performed with a fixed impedance range regardless of the impedance of the DUT.

You do not need to select the impedance range.

No ranging time is required.

The measurement time is longer due to the ranging time.

You need to select a proper range depending on the value of the DUT.

Available impedance range

The hold range has nine impedance ranges, but when option 001 is installed, it has ten. The impedance range is selected according to the DUT’s impedance even if the measurement parameter is capacitance or inductance.

Model

Standard 1, 10, 100, 300, 1 k, 3 k, 10 k, 30 k, 100k

Option 001

Impedance range ()

100 m

, 1, 10, 100, 300, 1 k, 3k, 10 k, 30 k, 100k

1. This cannot be used when the test signal level is less than or equal to 2 V.

Keysight E4980A/AL Precision LCR Meter 51

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Display Format MEAS DISPLAY Page

Effective measurement range for each impedance range for impedance measurement

Figure 3-3 shows the range that can be displayed and the effective measuring

range for each impedance range while in the impedance mode (| Z |, R, X). For example, 50-k DUT impedance can be measured using the ranges of 100 k to 30 k, but the E4980A/AL’s accuracy specification is only met when using the 30-k range. If this DUT is measured with the 100-k range, “OVERLOAD”

will be displayed.

Figure 3-3 Effective measurement range for each impedance range (Impedance

measurement)

Table 3-6 Effective measurement range for the impedance range when it is in the HOLD

state for impedance measurement

Effective measurement range

0 < Impedance  108 m

108 m

< Impedance  1.08

Impedance range ()

100 m

10 1.08 < Impedance  10.08

100 10.08 < Impedance < 276

300 276  Impedance < 0.92 k

1 k 0.92 k  Impedance < 2.76 k

52 Keysight E4980A/AL Precision LCR Meter

3 k 2.76 k  Impedance < 9.2 k

Display Format MEAS DISPLAY Page

Table 3-6 Effective measurement range for the impedance range when it is in the HOLD

state for impedance measurement

Impedance range ()

10 k

30 k

Effective measurement range

9.2 k  Impedance < 27.6 k

27.6 k  Impedance < 92 k

100 k 92 k  Impedance

1. This can be set when the test signal level is more than 2 V.

2. When the test signal level is less than or equal to 2 V or 20 mA, it is 0 (zero).

3. When test frequency is more than 100 kHz and the test signal level is less than or equal to 0.2 V (2 mA), it is more than 9.2 k.

4. When test frequency is more than 100 kHz and the test signal level is more than

0.2 V and less than or equal to 2 V (more than 2 mA and less than or equal to 20 mA), it is more than 27.6 k.

Effective measurement range for each impedance range

The following shows the effective measurement range of each impedance range, in which the E4980A/AL’s measurement accuracy meets its specifications.

When the impedance range is set manually, the optimum impedance range should be selected by matching the impedance of the DUT to the effective measurement range shown in Figure 3-4, Figure 3-5, and Figure 3-6. When the impedance range is set to AUTO, the optimum impedance range is automatically selected according to the impedance of each DUT.

The impedance range is limited by the test frequency setting when the test signal level is less than or equal to 2V. When the impedance range and test frequency are set under the above conditions, the test frequency must be set first, followed by the impedance range. If you set the impedance range first and then frequency, the resulting impedance range may not be the one you wanted to set.

Keysight E4980A/AL Precision LCR Meter 53

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㪠㫅㪻㫌㪺㫋㪸㫅㪺㪼

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Display Format MEAS DISPLAY Page

Figure 3-4 Effective measurement range (0.2V or 2 mA < Test signal level  2 V or 20 mA)

54 Keysight E4980A/AL Precision LCR Meter

Display Format

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㪟

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㪟

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㪈㪇㱅㩷㪩㪸㫅㪾㪼

MEAS DISPLAY Page

Figure 3-5 Effective measurement range (Test signal level > 2 V or 20 mA)

Keysight E4980A/AL Precision LCR Meter 55

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㪠㫄㫇㪼㪻㪸㫅㪺㪼

㪘㪻㫄㫀㫋㫋㪸㫅㪺㪼

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㪈㪇㪇㫂㱅㩷㪩㪸㫅㪾㪼

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㪈㪇㫂㱅㩷㪩㪸㫅㪾㪼

㪊㫂㱅㩷㪩㪸㫅㪾㪼

㪈㫂㱅㩷㪩㪸㫅㪾㪼

㪊㪇㪇㱅㩷㪩㪸㫅㪾㪼

㪈㪇㪇㱅㩷㪩㪸㫅㪾㪼

㪈㪇㱅㩷㪩㪸㫅㪾㪼

Display Format MEAS DISPLAY Page

Figure 3-6 Effective measurement range (Test signal level  0.2 V or 2 mA)

56 Keysight E4980A/AL Precision LCR Meter

Display Format MEAS DISPLAY Page

Procedure for setting the impedance range

Step 1. Press the [Display Format] key.

Step 2. Press the MEAS DISPLAY softkey.

Step 3. Use the cursor keys to select the RANGE field.

Step 4. Use the softkeys to select the impedance range mode or impedance range.

Softkey Function

AUTO Sets the impedance range mode to AUTO.

HOLD Sets the impedance range mode to HOLD.

INCR + Increments the impedance range in the HOLD mode.

DECR - Decrements the impedance range in the HOLD mode.

Manually setting the time for the impedance range mode

Changing impedance range requires a few milliseconds to several tens of milliseconds. For details, refer to Settling Time in data sheet in Chapter 11

“Specifications and Supplemental Information”

Keysight E4980A/AL Precision LCR Meter 57

Display Format MEAS DISPLAY Page

Test Frequency

Test frequency point

The E4980A/AL’s test frequency can be set in the range from 20 Hz to 2 MHz. The last digit of the four-digit test frequency display (including digits after the decimal point) can be set as the resolution.

Table 3-7 shows the test frequency point of each frequency range (F).

Table 3-7 Frequency range and test frequency point

Frequency range (F) Test frequency point Resolutio

20 Hz  F  99.99 Hz 20.00 Hz, 20.01 Hz•••99.99 Hz 0.01 Hz

100 Hz  F  999.9 Hz 100.0 Hz, 100.1 Hz•••999.9 Hz 0.1 Hz

1 kHz  F  9.999 kHz 1.000 kHz, 1.001 kHz•••9.999 kHz 1 Hz

10 kHz  F  99.99 kHz 10.00 kHz, 10.01 kHz•••99.99 kHz 10 Hz

100 kHz  F  999.9 kHz 100.0 kHz, 100.1 kHz•••999.9 kHz 100 Hz

1 MHz  F  2 MHz 1.000 MHz, 1.001 MHz•••2.000 MHz 1 kHz

When more than five-digit numeric data (including digits after the decimal point) are entered, the nearest test frequency point is automatically set.

Procedure for setting test frequency

Step 1. Press the [Display Format] key.

Step 2. Use the cursor keys to select the FREQ field.

Step 3. Use the softkeys or numeric entry keys to enter the test frequency. When

data is entered with the numeric entry keys, the softkeys change to unit labels (Hz, kHz, MHz).

Softkey Function

INCR ++ Increments the test frequency to the next sequentially higher tenfold

value after 20 Hz. Refer to Table 3-8 for the test frequency points that can be set using this softkey.

INCR + Increments the current test frequency to the next sequentially

higher frequency point. There are ten frequency points between successive decade values. Refer to Table 3-9 for the sequential frequency points that can be set using this softkey.

58 Keysight E4980A/AL Precision LCR Meter

Display Format MEAS DISPLAY Page

Softkey Function

DECR - Decreases the test frequency to the next sequentially lower

frequency point. There are ten frequency points between successive decade values. Refer to Table 3-9 for the frequency points that can be set using this softkey.

DECR -- Decreases the test frequency to the next sequentially lower tenth

value after 20 Hz. Refer to Table 3-8 for the frequency points that can be set using this softkey.

Table 3-8 Test frequency that can be set using INCR ++ / DECR --

INCR ++ / DECR --

20 Hz

100 Hz

1 kHz

10 kHz

100 kHz

1 MHz

2 MHz

Table 3-9 Test frequency that can be set using INCR + / DECR -

INCR + / DECR -

20 Hz 100 Hz 1 kHz 10 kHz 100 kHz 1 MHz

25 Hz 120 Hz 1.2 kHz 12 kHz 120 kHz 1.2 MHz

30 Hz 150 Hz 1.5 kHz 15 kHz 150 kHz 1.5 MHz

40 Hz 200 Hz 2 kHz 20 kHz 200 kHz 2 MHz

50 Hz 250 Hz 2.5 kHz 25 kHz 250 kHz

60 Hz 300 Hz 3 kHz 30 kHz 300 kHz

80 Hz 400 Hz 4 kHz 40 kHz 400 kHz

500 Hz 5 kHz 50 kHz 500 kHz

600 Hz 6 kHz 60 kHz 600 kHz

800 Hz 8 kHz 80 kHz 800 kHz

Keysight E4980A/AL Precision LCR Meter 59

Display Format MEAS DISPLAY Page

Time required for setting the test frequency

Changing the test frequency requires a few milliseconds to several tens of milliseconds. For details, refer to Settling Time in data sheet in Chapter 11

“Specifications and Supplemental Information”

60 Keysight E4980A/AL Precision LCR Meter

Display Format MEAS DISPLAY Page

Test Signal Level

The E4980A/AL’s test signal level can be set as the effective value (RMS value) of a sine wave of the test frequency from the unit’s internal oscillator. You can set either the oscillator voltage level or the oscillator current level. The output

impedance is 100 .

The set value of the oscillator current level is the value set when the measurement contacts (UNKNOWN terminals) are shorted together.

The set value of the oscillator voltage level is the value set when the measurement contacts (UNKNOWN terminals) are opened.

The E4980A/AL can measure a device using a constant voltage or current level by using the automatic level control function. (The automatic level control function (ALC field) can be set to ON from the MEAS SETUP page.) When a constant voltage or current level measurement is performed, an asterisk mark (*) appears at the end of the LEVEL display. For more information about the automatic level control function, refer to “Automatic level control” on page 93.

Test signal level and resolution (Standard)

When option 001 (power/DC bias enhance) is not installed, the oscillator voltage level can be set with a resolution listed in Table 3-10, or the oscillator current level can be set with a resolution listed in Table 3-11.

Table 3-10 Oscillator voltage level and resolution (Std.)

Oscillator voltage level Resolution

0 Vrms to 200 mVrms 100 Vrms

200 mVrms to 500 mVrms 200 Vrms

500 mVrms to 1 Vrms 500 Vrms

1 Vrms to 2 Vrms 1 mVrms

Table 3-11 Oscillator current level and resolution (Std.)

Oscillator current level Resolution

0 Arms to 2 mArms 1 Arms

2 mArms to 5 mArms 2 Arms

5 mArms to 10 mArms 5 Arms

10 mArms to 20 mArms 10 Arms

Keysight E4980A/AL Precision LCR Meter 61

Display Format MEAS DISPLAY Page

Test signal level and resolution (Option 001)

When option 001 (power/DC bias enhance) is installed, the oscillator voltage level can be set with a resolution listed in Table 3-12, or the oscillator current level can be set with a resolution listed in Table 3-13.

Table 3-12 Oscillator voltage level and resolution (Option 001)

Oscillator voltage level Resolution

0 Vrms to 200 mVrms 100 Vrms

200 mVrms to 500 mVrms 200 Vrms

500 mVrms to 1 Vrms 500 Vrms

1 Vrms to 2 Vrms 1 mVrms

2 Vrms to 5 Vrms 2 mVrms

5 Vrms to 10 Vrms 5 mVrms

10 Vrms to 20 Vrms

1. When the test frequency is more than 1 MHz, the maximum oscillator voltage level that can be set is 15 Vrms.

10 mVrms

Table 3-13 Oscillator current level and resolution (Option 001)

Oscillator current level Resolution

0 Arms to 2 mArms 1 Arms

2 mArms to 5 mArms 2 Arms

5 mArms to 10 mArms 5 Arms

10 mArms to 20 mArms 10 Arms

20 mArms to 50 mArms 20 Arms

50 mArms to 100 mArms 50 Arms

Test signal level setting procedure

Step 1. Press the [Display Format] key

Step 2. Press the MEAS DISPLAY softkey.

Step 3. Use the cursor keys to select the LEVEL field.

62 Keysight E4980A/AL Precision LCR Meter

Display Format MEAS DISPLAY Page

Step 4. Use the softkeys or numeric entry keys to enter the test signal level. When

data is entered with the numeric entry keys, the softkeys change to units labels (mV, V, uA, mA, A).

Softkey Function

INCR ++ Increases the oscillator’s output level with a resolution shown in

Table 3-14 or Table 3-15.

INCR + Increases the oscillator’s output level with a resolution shown in

Table 3-10 to Table 3-13.

DECR - Decreases the oscillator’s output level with a resolution shown in

Table 3-10 to Table 3-13.

DECR -- Decreases the oscillator’s output level with a resolution shown in

Table 3-14 or Table 3-15.

Table 3-14 Oscillator’s voltage level that can be set with INCR ++ / DECR --

INCR ++ / DECR -- (Vrms)

1 m, 2 m, 3 m, •••, 9 m

10 m, 20 m, 30 m, •••, 90 m

100 m, 200 m, 300 m, •••, 900 m

1, 2, 3, •••, 9

10, 20

1. The voltage level can be set to more than 2 V only when option 001

is installed.

Table 3-15 Oscillator’s current level that can be set with INCR ++ / DECR --

INCR ++ / DECR -- (Arms)

10 , 20 , 30 , •••, 90 

100 , 200 , 300 , •••, 900 

1 m, 2 m, 3 m, •••, 9 m

10 m, 20 m, 30 m, •••, 90 m

100 m

1. The current level can be set to more than 20 m only when option 001 is installed.

Keysight E4980A/AL Precision LCR Meter 63

Display Format MEAS DISPLAY Page

DC Bias

The E4980A/AL has an internal DC bias. A DC bias is output when the DC Bias key on the front panel is set to ON.

The DC Bias key is a toggle-type switch used to enable DC bias output. When you press the DC Bias key, DCBIAS appears in the status display area and the LED indicator for DC bias is ON (orange). When you press the DC Bias key again, DCBIAS disappears from the status display area and the LED indicator is OFF. If the DC Bias key is set to OFF, the setting value for the DC bias is not output even though the DC bias is set to ON in the BIAS field.

The setting value of the DC bias signal voltage is the value set when the measurement contacts (UNKNOWN terminals) are opened.

The setting value of the DC bias signal current is the value set when the measurement contacts (UNKNOWN terminals) are shorted.

The range of the DC bias has two types: AUTO and FIX. When the E4980A/AL is initiated or preset, AUTO is set. The following descriptions are effective when AUTO is set as a range. Use the SCPI command to fix the range. For details, refer to “:BIAS:RANGe:AUTO” on page 323.

DC bias (Standard)

When option 001 (power/DC bias enhance) is not installed, the DC bias can be set with a resolution listed in Table 3-16. The level of the DC bias signal current cannot be set without option 001 present.

Table 3-16 DC bias and resolution (Std.)

DC bias signal voltage DC bias signal current

0 V, 1.5 V, 2.0 V unavailable

DC bias and resolution (Option 001)

When option 001 (power/DC bias enhance) is installed, the DC bias signal voltage and signal current can be set with a resolution listed in Table 3-17 or

Table 3-18.

Table 3-17 DC bias and resolution (Option 001)

DC bias signal voltage level Resolution

 (0 V to 5 V)

 (5 V to 10 V) 1 mV

100 V

 (10 V to 20 V) 2 mV

 (20 V to 40 V) 5 mV

1. Effective resolution is 330 V.

64 Keysight E4980A/AL Precision LCR Meter

Display Format

㪼㪋㪐㪏㪇㪸㫌㪼㪈㪇㪈㪎

㪈㪇㪇㱅

㪟㪠㪞㪟㪣㪦㪮

㪛㪚㩷㪙㪠㪘㪪㪚㪬㪩㪩㪜㪥㪫

㪪㪿㫆㫉㫋㪼㪻

MEAS DISPLAY Page

Table 3-18 DC bias and resolution (Option 001)

DC bias signal current level Resolution

 (0A to 50 mA)

 (50 mA to 100 mA) 10 A

1. Effective resolution is 3.3 A.

When a DUT is connected to the measurement contacts, the setting current value is different from the actual current passing through the DUT. For normal measurement taken by applying the signal current through a device, refer to

“DC Bias Current Isolation” on page 97.

Figure 3-7 DC bias signal current

1 A

Setting limits for DC bias and test signal level

When both the DC bias and the test signal level are set under the following conditions, the amount of DC bias plus the test signal level is limited to the values listed in Table 3-19

• Option 001 is installed.

• The DC Bias key on the front panel is set to ON.

Table 3-19 DC bias and test signal level-setting limits

Setting value Limit

DC bias Test signal

Vdc (V) Vosc (Vrms) Vosc  2  1.15 + Vdc  1.002 < 42 V

Vdc (V) Iosc (Arms) Iosc  2  115 + Vdc  1.002 < 42 V

Keysight E4980A/AL Precision LCR Meter 65

level

Display Format MEAS DISPLAY Page

Table 3-19 DC bias and test signal level-setting limits

Setting value Limit

DC bias Test signal

level

Idc (A) Vosc(Vrms) Vosc  2  1.15 + Idc  100.2 < 42 V

Idc (A) Iosc (Arms) Iosc  2  115 + Idc  100.2 < 42 V

Procedure for setting DC bias

Step 1. Press the [Display Format] key.

Step 2. Press the MEAS DISPLAY softkey.

Step 3. Use the cursor keys to select the BIAS field.

Step 4. Use the softkeys or numeric entry keys to enter the test signal level. When

data is entered with the numeric entry keys, the softkey labels are changed to the appropriate unit labels (mV, V, uA, mA, A).

Softkey Function

INCR ++ Increases the oscillator’s output level with a resolution shown in

Table 3-20 or Table 3-21.

INCR + Increases the oscillator’s output level with a resolution shown in

Table 3-16 to Table 3-18.

DECR - Decreases the oscillator’s output level with a resolution shown in

Table 3-16 to Table 3-18.

DECR -- Decreases the oscillator’s output level with a resolution shown in

Table 3-20 or Table 3-21.

Table 3-20 DC bias signal voltage that can be set with INCR ++ / DECR --

INCR ++ / DECR -- (V)

100 , 200 , 300 , •••, 900 

1 m, 2 m, 3 m, •••, 9 m

10 m, 20 m, 30 m, •••, 90 m

100 m, 200 m, 300 m, •••, 900 m

1, 2, 3, •••, 9

10, 20, 30, 40

66 Keysight E4980A/AL Precision LCR Meter

Display Format MEAS DISPLAY Page

1. When option 001 is not installed, only 0 V, 1.5 V, and 2.0 V can be set.

Table 3-21 DC bias signal current that can be set with INCR ++ / DECR

INCR ++ / DECR -- (A)

1 , 2 , 3 , •••, 9 

10 , 20 , 30 , •••, 90 

100 , 200 , 300 , •••, 900 

1 m, 2 m, 3 m, •••, 9 m

10 m, 20 m, 30 m, •••, 90 m

100 m

1. This cannot be set when option 001 is not installed.

Step 5. Press [DC Bias] to set the DC bias output to ON. DCBIAS appears in the status

display area and the LED indicator for DC bias lights up in orange.

Settling time for the DC bias signal voltage

Changing the DC bias requires a few milliseconds to several tens of milliseconds. For details, refer to DC bias settling time in data sheet in Chapter

11 “Specifications and Supplemental Information”

Keysight E4980A/AL Precision LCR Meter 67

Display Format MEAS DISPLAY Page

Measurement Time Mode

Three measurement time modes (SHORT, MEDIUM, LONG) can be selected for the E4980A/AL. A longer measurement time will result in more stable and accurate measurement results. Refer to “Measurement time” on page 442 For details on the measurement time of each measurement time mode.

Procedure for setting measurement time mode

Step 1. Press the [Display Format] key.

Step 2. Press the MEAS DISPLAY softkey.

Step 3. Use the cursor keys to select the MEAS TIME field.

Step 4. Use the softkeys to set the measurement time.

Softkey Function

SHORT Shortens the measurement time

MED Sets the measurement time between SHORT and LONG

LONG Lengthens the measurement time

68 Keysight E4980A/AL Precision LCR Meter

Display Format MEAS DISPLAY Page

Display Setting for Measurement Results

The E4980A/AL can set the display digits and display units for measurement results (primary parameter/secondary parameter). For measurement parameters whose “setting available?” column is No in Table 3-22, the display setting cannot be changed. For measurement parameters whose display digit can be set to AUTO or FIXED, generally AUTO is selected. Regarding the display range for measurement values, refer to “Measurement display ranges” in data sheet in Chapter 11 “Specifications and Supplemental Information”

Table 3-22 shows the digits and units that can be set for each measurement

parameter.

Under certain conditions, a message will be displayed instead of measurement results. For details, refer to “Displaying Errors instead of Measurement

Results” on page 71

Table 3-22 Display Settings for Measurement Results

Measurement Parameter

Unit Setting

available

Display digits

Supplementary unit Minimum

display

Maximum display

Vdc V Yes AUTO/FIX a,f,p,n,u,m,k,M,G,T,P,E 1.000000a 999.9999E

Idc A Yes AUTO/FIX a,f,p,n,u,m,k,M,G,T,P,E 1.000000a 999.9999E

R,X,Z,Rdc  Yes AUTO/FIX a,f,p,n,u,m,k,M,G,T,P,E 1.000000a 999.9999E

G,B,Y S Yes AUTO/FIX a,f,p,n,u,m,k,M,G,T,P,E 1.000000a 999.9999E

Cp,Cs F Yes AUTO/FIX a,f,p,n,u,m,k,M,G,T,P,E 1.000000a 999.9999E

Lp,Ls H Yes AUTO/FIX a,f,p,n,u,m,k,M,G,T,P,E 1.000000a 999.9999E

-rad rad Yes AUTO/FIX a,f,p,n,u,m,k,M,G,T,P,E 1.000000a 3.141593

Dn.a.NoFIXn.a. 0.000001 9.999999

Qn.a.NoFIXn.a. 0.01 99999.99

-deg deg No FIX n.a. 0.0001 180.0000

%%NoFIXn.a. 0.0001 999.9999

Procedure to change display setting

Step 1. Press the [Display Format] key.

Step 2. Press the MEAS DISPLAY softkey.

Step 3. Use the cursor keys to select the field in which a measurement result of

primary parameter or secondary parameter is displayed.

Step 4. Use the following softkeys to set the display.

Keysight E4980A/AL Precision LCR Meter 69

㪼㪋㪐㪏㪇㪸㫌㫁㪈㪈㪍㪈

Display Format MEAS DISPLAY Page

Softkey Function

D.P. AUTO Automatically displays the appropriate digits and units

D.P FIX Displays measurement data using a fixed-point display format. In

this case, is displayed at the fixed decimal point. (refer to

Figure 3-8).

D.P POS INCR + Moves the decimal point to the left. Supplementary units are also

changed.

D.P POS DECL - Moves the decimal point to the right. Supplementary units are also

changed.

Figure 3-8 Fixed-display sample of a measurement result

70 Keysight E4980A/AL Precision LCR Meter

Display Format MEAS DISPLAY Page

Displaying Errors instead of Measurement Results

Under certain conditions, the following message will appear instead of the measurement results. A description of each message is provided below.

Error messages

Message Description

OVERLOAD This message appears when overload occurs. The returned value is

“9.9E37” when using the SCPI command. Conditions in which overload occurs differ depending on the impedance range settings. For details, refer to Table 3-26 on page 74.

--- This appears when no measurement was performed, or the measurement result is beyond the display range.

INFINITY This message appears when the deviation mode of the deviation

measurement function is % and the measurement result cannot be calculated.

Conditions where overload occurs for impedance measurement

Conditions differ depending on the impedance range setting (RANGE field).

Impedance range

AUTO • E4980A/AL’s internal detector detects overload

HOLD Conditions differ depending on the impedance range. Refer to Table

Table 3-23 Overload range when the impedance range is in the HOLD state for

impedance measurement

Impedance range ( ) (RANGE field)

0.1 0 to 0.11 more than 0.11

1 0 to 1.1 more than 1.1

Conditions

• When the DUT’s distortion is large

• When the DUT’s response is slow

3-23

Measurable range Range in which overload occurs

10 0 to 11 more than 11

100 0 or more n.a.

300 270 or more less than 270

1 k 900 or more less than 900

Keysight E4980A/AL Precision LCR Meter 71

Display Format MEAS DISPLAY Page

Table 3-23 Overload range when the impedance range is in the HOLD state for

impedance measurement

Impedance range

Measurable range Range in which overload occurs

( ) (RANGE field)

3 k 2700 or more less than 2700

10 k 9,000 or more less than 9,000

30 k 27,000 or more less than 27,000

100 k 90,000 or more less than 90,000

Conditions where overload occurs for DCR measurement

Conditions differ depending on the DCR impedance-range setting (DCR RNG field).

Impedance range

AUTO When the E4980A/AL’s internal detector detects overload

HOLD Conditions differ depending on the impedance range. Refer to Table

Table 3-24 Overload range when the impedance range is in the HOLD state for DCR

measurement

Conditions

3-24

Impedance range ( )  (DCR RNG field)

Measurable range Range in which overload

occurs

10 0 to 11 more than 11

100 0 or more n.a.

1 k 900 or more less than 900

10 k 9,000 or more less than 9,000

100 k 90,000 or more less than 90,000

72 Keysight E4980A/AL Precision LCR Meter

Display Format MEAS DISPLAY Page

Conditions in which overload occurs for Vdc-Idc measurement (DC source-level monitor)

Conditions differ depending on the Idc impedance range setting (DCI RNG field).

Impedance range

AUTO • When the measurement value exceeds 125 mA

HOLD Conditions differ depending on the impedance range. Refer to Table

Overload does not occur for Vdc measurement.

Table 3-25 Overload range when the impedance range is in the HOLD state for Idc

measurement

Impedance range (A) (DCI RNG field)

20  0 to 22  more than 22 

200  0 to 220  more than 220 

2 m 0 to 2.2 m more than 2.2 m

Conditions

• When the E4980A/AL’s internal detector detects overload

3-25

Measurable range Range inn which overload

occurs

20 m 0 to 22 m more than 22 m

100 m 0 to 110 m more than 110 m

List of measurement results when overload occurs.

This section describes measurement results and each monitor value when overload occurs.

The bold font in the list indicates the measurement parameter for which overload occurs.

“*” indicates that measurement results, judgment, and BIN count are normal.

Keysight E4980A/AL Precision LCR Meter 73

Display Format MEAS DISPLAY Page

Table 3-26 List of measurement results when overload occurs

Measurement parameter

Meas. value

Meas. val ue (second ary)

VAC/IAC monitor

VDC monitor

IDC monitor

IN/ OUT

BIN No.

(primary)

Impedance

OVLD OVLD --- --- --- L OUT

measurement (except for Ls/Lp-Rdc)

Impedance

OVLD OVLD --- --- --- L OUT

measurement (except for Ls/Lp-Rdc)

Impedance

OVLD --- --- --- --- L OUT

measurement (Ls/Lp-Rdc)

DCR measurement

* OVLD ***LOUT

(Ls/Lp-Rdc)

Vdc-Idc measurement * OVLD 0*OVLDLOUT

Other than Vdc-Idc

***OVLD --- * *

measurement

Other than Vdc-Idc

****OVLD **

measurement

OVLD is displayed as OVERLOAD on the display.

74 Keysight E4980A/AL Precision LCR Meter

Display Format MEAS DISPLAY Page

Monitor Information

The following describes monitor information displayed on the MEAS DISPLAY page. This information cannot be changed on the MEAS DISPLAY page.

Monitor

Description

information

VAC Displays the test signal voltage level (AC voltage). Displays

measurement results regardless of the type of measurement parameter

IAC Displays the test signal current level (AC current). Displays

measurement results regardless of the type of measurement parameter

VDC Displays the DC bias voltage level (DC voltage). Set the VDC MON

field of the [Means Setup] page to ON when you want to display it.

IDC Displays the DC bias current level (DC current). Set the IDC MON field

of the [Means Setup] page to ON when you want to display it

CORR Displays the correction information of enabled correction types

(OPEN/SHORT/LOAD) and cable length

1. This can be displayed only when option 001 is installed.

2. SINGLE is displayed when option 301 is not installed.

Displays the channel number in the multi-correction mode

The VDC/IDC monitor values are the ones measured under the condition that the setting value of the test signal level (LEVEL field) is output. Therefore, these values are different from the measurement results displayed when the measurement parameter is DC voltage measurement/DC current measurement (Vdc-Idc).

Keysight E4980A/AL Precision LCR Meter 75

Display Format BIN NO. DISPLAY Page

BIN NO. DISPLAY Page

When you press the [Display Format] key and BIN No. soft key, the BIN No. DISPLAY page appears. The bin sorting results are displayed in large characters while the measurement results are shown in normal characters. The following measurement controls can be set from the BIN No. DISPLAY page (The field in parenthesis is used when this control is set).

• Comparator function ON/OFF (COMP field)

This page also provides the following information in the monitor areas (each monitor area looks like a field but is not). These conditions can be set from the MEAS SETUP page and the CORRECTION page, and most conditions can be set from the MEAS DISPLAY page.

• Measurement Function (FUNC)

•Impedance range (RANGE)

• Test Frequency (FREQ)

• Test Signal Level (LEVEL)

• DC Bias (BIAS)

• Measurement Time Mode (MEAS TIME)

• Correction Information (CORR)

Figure 3-9 shows the available fields and the softkeys that correspond to each

field on this page.

76 Keysight E4980A/AL Precision LCR Meter

Display Format

㪼㪋㪐㪏㪇㪸㫌㪼㪈㪇㪍㪋

㪑㩷㩷㪝㫀㪼㫃㪻

㪑㩷㩷㪤㫆㫅㫀㫋㫆㫉

㪙㪠㪥㩷㪪㫆㫉㫋㫀㫅㪾

㪩㪼㫊㫌㫃㫋㫊

㪤㪼㪸㫊㫌㫉㪼㫄㪼㫅㫋

㪩㪼㫊㫌㫃㫋㫊

BIN NO. DISPLAY Page

Figure 3-9 BIN NO. DISPLAY page

Comparator Function ON/OFF

The E4980A/AL’s built-in comparator can sort devices into a maximum of ten bins (BIN 1 to BIN 9 and the OUT OF BIN) using a maximum of nine pairs of primary parameter limits and one pair of secondary parameter limits. Also, a device whose primary parameter is within limits, but whose secondary parameter measurement result is not, can be sorted into an auxiliary BIN (AUX BIN). To control a component handler using the comparator function, it is necessary to install option 201.

These limits settings for bin sorting are set on the LIMIT TABLE page from the [MEAS SETUP] key (refer to Chapter 4). Therefore, this COMP field allows you to only set the comparator function to ON or OFF.

Procedure for setting the comparator function

Step 1. Press the [Display Format] key.

Step 2. Press the BIN No. softkey.

Step 3. Use the cursor keys to select the COMP field.

Keysight E4980A/AL Precision LCR Meter 77

Display Format BIN NO. DISPLAY Page

Step 4. Use the softkeys to set the comparator function to ON or OFF.

Softkey Function

ON Sets the comparator to ON

OFF Sets the comparator to OFF

78 Keysight E4980A/AL Precision LCR Meter

Display Format BIN COUNT DISPLAY Page

BIN COUNT DISPLAY Page

When you press the [Display Format] key and BIN COUNT softkey, the BIN COUNT DISPLAY page is displayed. On this page, the comparator’s count results are displayed (The field in parentheses is used for setting).

• Counter function ON/OFF (COUNT field)

This page also provides the following information in the monitor areas (each monitor area looks like a field, but is not). These conditions can be set from the LIMIT TABLE SETUP page. For more details, refer to “LIMIT TABLE SETUP

Page” on page 130.

• Measurement Function (FUNC)

• Nominal Value (NOM)

• Test Frequency (FREQ)

• Bin Sorting Low/High Limits (LOW/HIGH)

• BIN Sorting Results (RESULT)

Figure 3-10 shows the available fields and the softkeys that correspond to

each field on this page.

You can set it so that a beep sounds when the sorting result is output. For details, refer to “Beep Feature” on page 139.

Keysight E4980A/AL Precision LCR Meter 79

㪑㩷㩷㪝㫀㪼㫃㪻

㪑㩷㩷㪤㫆㫅㫀㫋㫆㫉

Display Format BIN COUNT DISPLAY Page

Figure 3-10 BIN COUNT DISPLAY Page

㪼㪋㪐㪏㪇㪸㫌㪼㪈㪇㪍㪌

80 Keysight E4980A/AL Precision LCR Meter

Display Format BIN COUNT DISPLAY Page

Counter Function

The E4980A/AL is capable of counting bins. The number of devices sorted into each bin is counted while the unit sorts the devices into appropriate bins using the comparator function.

The maximum count is 999,999. The counting operation stops and the overflow message “----” appears when this value is reached.

Counter setting procedure

Step 1. Press the [Display Format] key.

Step 2. Press the BIN COUNT softkey.

Step 3. Use the cursor keys to select the COUNT field.

Step 4. Use the softkeys to set the counter to ON/OFF.

Softkey Function

COUNT ON Sets the counter to ON

COUNT OFF Sets the counter to OFF

Counter reset procedure

Step 1. Press the [Display Format] key.

Step 2. Press the BIN COUNT softkey.

Step 3. Use the cursor keys to select the COUNT field.

Step 4. Use the softkeys to press RESET COUNT.

The counter is reset when the instrument setting state is recalled.

Keysight E4980A/AL Precision LCR Meter 81

Display Format LIST SWEEP DISPLAY Page

LIST SWEEP DISPLAY Page

When you press the [Display Format] key and LIST SWEEP softkey, the LIST SWEEP DISPLAY page appears. On this page in is possible to enter sweep points and measurement limits of up to 201 frequencies, test signal levels, DC bias, or DC source. The sweep points are automatically swept and the measurement results are compared to the limits.

On the LIST SWEEP DISPLAY page, the sweep points are swept and the measurement results are compared to the limits. During a sweep, an asterisk mark (*) will appear on the left side of the sweep point currently being measured. The following measurement controls can be set from this page (Each field in parentheses is used for setting).

• Sweep Mode of the List Sweep Measurement (MODE)

• Confirmation for Each Page of the List Sweep Measurement (No. of fields)

The sweep point list cannot be set from this page; it can only be set from the LIST SWEEP SETUP page.

Figure 3-11 shows the available fields and the softkeys that correspond to

each field on this page.

You can set it so that a beep sounds when the sorting result is output. For details, refer to “Beep Feature” on page 139.

82 Keysight E4980A/AL Precision LCR Meter

Display Format

㪼㪋㪐㪏㪇㪸㫌㪼㪈㪇㪍㪎

㪤㪼㪸㫊㫌㫉㪼㫄㪼㫅㫋

㪩㪼㫊㫌㫃㫋㫊

㪚㫆㫄㫇㪸㫉㫀㫊㫆㫅㩷㪩㪼㫊㫌㫃㫋㫊㩷㫆㪽

㪣㫀㫊㫋㩷㪪㫎㪼㪼㫇㩷㪤㪼㪸㫊㫌㫉㪼㫄㪼㫅㫋

㪑㩷㩷㪝㫀㪼㫃㪻

㪑㩷㩷㪤㫆㫅㫀㫋㫆㫉

LIST SWEEP DISPLAY Page

Figure 3-11 LIST SWEEP DISPLAY Page

Keysight E4980A/AL Precision LCR Meter 83

㪼㪋㪐㪏㪇㪸㫌㪼㪈㪇㪍㪍

㪫㫉㫀㪾㪾㪼㫉

㪪㪜㪨㩷㫄㫆㪻㪼

㪫㫀㫄㪼

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Display Format LIST SWEEP DISPLAY Page

Sweep Mode

The E4980A/AL’sf unction for list sweep measurement permits up to 201 test frequencies, test signal levels, DC bias, or DC source to be automatically measured. There are two measurement methods for list sweep measurements: sequential (SEQ) mode and step (STEP) mode. In the case of SEQ mode, when the E4980A/AL is triggered once, all sweep points are automatically swept. In the case of STEP mode, each time the E4980A/AL is triggered, the sweep points are swept one by one.

Procedure for setting sweep modes

Step 1. Press the [Display Format] key.

Step 2. Press the LIST SWEEP softkey.

Step 3. Use the cursor keys to select the MODE field.

Step 4. Use the softkeys to select the sweep mode.

Softkey Function

SEQ When the E4980A/AL is triggered once, all sweep points are swept

STEP Each time the E4980A/AL is triggered, the sweep points are swept

one by one

Figure 3-12 Sequential mode and step mode

When two or more sweep points are the same and are adjacent, the E4980A/AL measures all of the listed points, and then compares the measurement result to limits set for each sweep point.

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Procedure to confirm the sweep points

Step 1. Press the [Display Format] key.

Step 2. Press the LIST SWEEP softkey.

Step 3. Use the cursor keys to select the No. of fields.

Step 4. Use the softkeys to confirm the sweep points on each page.

Softkey Function

PREV PAGE Displays the previous page

NEXT PAGE Displays the next page

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Display Format DISPLAY BLANK Page

DISPLAY BLANK Page

When you press the [Display Format] key and then press the DISPLAY BLANK softkey, the screen switches to the non-display state. In this state, measurement time decreases because the screen is not updated. For more on display time, refer to “Display time” in data sheet in Chapter 11

“Specifications and Supplemental Information”

Press the DISPLAY NORMAL softkey to return to the normal screen.

Figure 3-13 shows the DISPLAY BLANK page.

Figure 3-13 DISPLAY BLANK page

The LCD backlight cannot be turned off. Keys other than the DISPLAY NORMAL softkey are not available.

Even when the screen is in the non-display state and the front panel keys are unavailable (UNLOCK state), the DISPLAY NORMAL key is available.

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User’s Guide

4 Configuring Measurement Conditions (Display and

Function Related Settings)

This chapter provides information on the various settings accessible through the MEAS SETUP page of the E4980A/AL.

Initializing the Instrument

The E4980A/AL can be initialized into one of the following four default states:

Table 4-1 Three default states of E4980A/AL and how it is initialized

Default state How the instrument is initialized

CLEAR SETTING When you initialize the instrument into this state, all basic

parameters configurable through the front panel and SCPI commands are cleared. (You get the same result by issuing the *RST command).

CLEAR SET&CORR When you initialize the instrument into this state, calibration

data and backup items listed in the initial setting list are all

cleared. :SYST:PRES command).

FACTORY DEFAULT When you initialize the instrument into this state, it reverts to

factory default settings with all user-configurable data cleared.

LAN RESET When you initialize the instrument into this state, the LAN

setting is returned to the factory default state.

1. It takes a few seconds for the initialization to complete.

For more information on each default state and affected settings, see

Appendix C , “List of Default Values,” on page 439.

(You can gain the same result by issuing the

Configuring Measurement Conditions (Display and Function Related Settings) MEAS SETUP page

MEAS SETUP page

You can press the [Meas Setup] key to open the MEAS SETUP page. In the MEAS SETUP page, you can configure each of the following measurement controls with the cursor placed in the corresponding field (denoted in parentheses).

• Comment line (USER COMMENT field)

•Measurement function (FUNC field)

• Measurement range (RANGE field)

• Measurement frequency (FREQ field)

• DC bias (BIAS field)

• Measurement signal level (LEVEL field)

• Measurement time mode (MEAS TIME field)

• Trigger mode (TRIG field)

• averaging factor (AVG field)

• Automatic level control (ALC field)

• Signal voltage level monitor ON/OFF (VDC MON field)

• DC resistance range (DCR RNG field)

• Signal current level monitor ON/OFF (IDC MON field)

• Bias current isolation (DCI ISO field)

• Trigger delay time (TRIG DLY field)

• DC current (DCI) range (DCI RNG field)

• Step delay time (STEP DLY field)

• DC source (DC SRC field)

• Automatic bias polarity control (BIAS POL)

• Deviation measurement mode A (DEV A field)

• Reference value for deviation measurement mode A (REF A field)

• Deviation measurement mode B (DEV B field)

• Reference value for deviation measurement mode B (REF B field)

The following fields are accessible through both the MEAS SETUP and MEAS DISPLAY pages:

•Measurement function (FUNC field)

• Measurement range (RANGE field)

• Measurement frequency (FREQ field)

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MEAS SETUP page

• DC bias (BIAS field)

• Measurement signal level (LEVEL field)

• Measurement time mode (MEAS TIME field)

For more information on the fields listed above, refer to the description in

Chapter 3 “Display Format” The following sections gives descriptions on the

fields that are only accessible through the MEAS SETUP.

Figure 4-1 shows the fields available on this page along with the softkeys

corresponding to them.

Figure 4-1 MEAS SETUP page

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Configuring Measurement Conditions (Display and Function Related Settings) MEAS SETUP page

Comment line

You can enter a comment in the comment line by using the softkeys to enter letters and the entry keys to enter numbers from 0 through 9, +, -, and period (.). Your entered comment is saved in the internal memory or external USB memory along with the control settings of the E4980A/AL. When you load the control settings, your saved comment is loaded as well.

The comment can be up to 30 characters in length. However, only the first 22 characters are displayed in the area.

Until you enter a comment into the comment line, the default text “USER COMMENT” appears in the comment line.

You can also use the DISPlay:LINE command to enter ASCII characters into the comment line.

To enter a comment into the comment line:

Step 1. Press [Meas Setup].

Step 2. Press the MEAS SETUP softkey.

Step 3. Using the cursor keys, select the USER COMMENT field.

If there is already a comment, select that comment (field).

Step 4. To input a letter, use the following softkeys to cycle through letters in

alphabetical order and then select your desired letter:

Softkey Description

NEXT Displays the next letter to the letter currently displayed in the ADD

CHAR softkey.

PREV Displays the previous letter to the letter currently displayed in the

ADD CHAR softkey.

To input a number, use the entry keys.

Step 5. Press the ADD CHAR softkey.Your selected single character appears in the

input line area.

Step 6. Repeat Step 4 and Step 5 to input subsequent characters.

Step 7. Press the ENTER softkey to enter your text in the USER COMMENT field.

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Configuring Measurement Conditions (Display and Function Related Settings) MEAS SETUP page

Trigger mode

Functional Description

The E4980A/AL supports four trigger modes: INT (internal), EXT (external), MAN (manual), and BUS (GPIB bus).

For more on the E4980A/AL’s trigger system, see “Trigger System” on

page 245 in Chapter 8 “Overview of Remote Control”

Trigger mode Description

INT After you bring up the display page using the [Display Format] key,

MAN After you bring up the display page using the [Display Format] key,

EXT After you bring up the display page using the [Display Format] key,

the instrument continuously repeats the measurement cycle.

the instrument performs one cycle of measurement each time you press the [Trigger] key.

the instrument performs one cycle of measurement each time a rising TTL pulse is input to the external trigger input terminal on the rear panel. In the EXT (external trigger) mode, you can also trigger the instrument by short-circuiting the core wire of the external trigger input terminal and the instrument’s ground line (the core wire is connected to a circuit that contains a pull-up resistor). Figure 4-2 shows the TTL pulse specifications.

Also, you can trigger the instrument from the handler interface or scanner interface.

BUS The E4980A/AL performs one cycle of measurement each time it

receives a trigger command sent via GPIB/USB/LAN.

E4980A/AL ignores any trigger that is input during a measurement cycle. Be sure to trigger the instrument when it is not in a measurement cycle.

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Configuring Measurement Conditions (Display and Function Related Settings) MEAS SETUP page

Figure 4-2 External trigger pulse

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To choose a trigger mode:

Step 1. Press [Meas Setup].

Step 2. Using the cursor keys, select the TRIG field.

Step 3. Select your desired trigger mode by pressing the appropriate softkey:

Softkey Description

INT Puts the instrument into internal trigger (INT) mode.

MAN Puts the instrument into manual trigger (MAN) mode.

EXT Puts the instrument into external trigger (EXT) mode.

BUS Puts the instrument into bus mode.

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Automatic level control

Functional Description

The automatic level control (ALC) feature adjusts the voltage across the DUT to the same level as the signal voltage level setting or the current across the DUT to the same level as the signal current level setting. Using this feature, you can maintain a constant level (voltage or current) of measurement signals applied to the DUT.

The automatic level control feature uses a monitorable feedback circuit, as shown in Figure 4-3, to iterate a feedback loop that consists of level measurement and level change, two to nine times every measurement cycle. (The time required for level adjustment depends on how many times the feedback loop is iterated (the value “n”) and, in turn, the value “n” depends on the characteristics of the DUT. Generally, the higher the DUT’s non-linearity, the longer the level adjustment time.)

If the automatic level control feature fails to complete the level adjustment after it has iterated the feedback loop (level measurement and level change)

nine times, it becomes inactive regulate” appears. In this case, the signal input level is made equal to the specified level, and the signal output level is made equal to the output level with the automatic level control feature turned off.

and the warning message “ALC unable to

The time required for the automatic level control feature to complete the adjustment can be determined based on the following formula:

When the measurement range is set to HOLD, (measurement time + test signal voltage setting time)  n,

where n = 2 (min)

n = 9 (max)

For more on the test signal voltage setting time, refer to data sheet in

Chapter 11 “Specifications and Supplemental Information” .

1. If the DUT has a very high linearity, the automatic level control feature may turn inactive before it enters the 9th iteration of the feedback loop of the level measurement cycle and the level may change.

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Configuring Measurement Conditions (Display and Function Related Settings) MEAS SETUP page

Figure 4-3 Feedback Circuit

Figure 4-4 shows the working ranges of the automatic level control feature. In

the charts, solid lines denote the ranges that apply when the DUT is a resistor, while broken lines denote the ranges for a capacitor or inductor.

When test signal level is set close to 2 Vrms/20 mArms or 20 Vrms/100 mArms or less then 5 mVrms, the warning message “ALC unable to regulate” may appear.

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MEAS SETUP page

Figure 4-4 Working ranges of the automatic level control feature

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To set up the automatic level control feature:

Step 1. Press [Meas Setup].

Step 2. Using the cursor keys, select the ALC field.

Step 3. Use the following softkeys:

Softkey Description

ON Turns ON the automatic level control feature.

OFF Turns OFF the automatic level control feature.

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DC Bias Current Isolation

Functional Description

When the instrument is equipped with Option 001 (Power/DC Bias Enhance), it supports DC bias settings up to  40V. The DC bias current actually applied to the DUT can be checked using the IDC monitor.

The DC bias current isolation feature is intended to prevent DC current from affecting the measurement circuit. To turn on/off this feature, use the DCI ISO field.

For information on the maximum DC bias current with the DC bias current isolation feature ON or OFF, see “Maximum DC bias current” in data sheet in

Chapter 11 “Specifications and Supplemental Information” .

When the DC bias current isolation feature is OFF and the DC bias current applied to the DUT exceeds the maximum level, turn this feature ON. If a DC bias current exceeding the maximum level is applied to the DUT, the instrument will fail to return correct measurements.

The DC bias current isolation feature affects measurement accuracy. For more information, see “Relative measurement accuracy with bias current isolation” in data sheet in Chapter 11 “Specifications and Supplemental

Information” .

To set up the DC bias current isolation feature:

Step 1. Press [Meas Setup].

Step 2. Using the cursor keys, select the DCI ISO field.

Step 3. Use the following softkeys:

Softkey Description

ON Turn ON the DC bias current isolation feature.

OFF Turn OFF the DC bias current isolation feature.

Step 4. Set the DCI measurement range. For more information, see “To set the DCI

range:” on page 106.

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Configuring Measurement Conditions (Display and Function Related Settings) MEAS SETUP page

Averaging Factor

Functional Description

The averaging feature of the E4980A/AL allows you to obtain moving average values of successive measurement results.

You can specify the averaging factor within the range of 1 to 256 in steps of 1.

The averaging feature does not affect the measurement results of the DC bias voltage monitor and DC bias current monitor even when a particular averaging factor is specified.

To set up the averaging factor:

Step 1. Press [Meas Setup].

Step 2. Using the cursor keys, select the AVG field.

Step 3. Enter the averaging factor using the softkeys or entry keys. If you have used

the entry keys to enter the value, the softkey labels change to unit labels (x1).

Softkey Description

INCR ++ Increments the averaging factor in steps of 1, 2, 4, 8, 16, 32, 64,

128, and 256.

INCR + Increments the averaging factor in steps of 1.

DECR - Decrements the averaging factor in steps of 1.

DECR -- Decrements the averaging factor in steps of 1, 2, 4, 8, 16, 32, 64,

128, and 256.

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Trigger Delay Time

Functional Description

The trigger delay time feature of the E4980A/AL allows you to adjust the time between triggering and start of measurement. When you carry out list sweep measurement, this trigger delay time is inserted into the first place of the list.

You can set the trigger delay time within the range of 0 through 999 s (seconds) in minimum units of 100 s.

This feature is useful when you use the E4980A/AL in conjunction with the handler and want to trigger the E4980A/AL after stabilizing the connection of the DUT.

To set the trigger delay time:

Step 1. Press [Meas Setup].

Step 2. Using the cursor keys, select the TRIG DLY field.

Step 3. Enter the trigger delay time using the softkeys or entry keys. If you have used

the entry keys to enter the value, the softkey labels change to unit labels (ms, s).

Softkey Description

INCR ++ Increments the trigger delay time in the resolution steps shown in

Table 4-3.

INCR + Increments the trigger delay time in the resolution steps shown in

Table 4-3.

DECR - Decrements the trigger delay time in the resolution steps shown in

Table 4-3.

DECR -- Decrements the trigger delay time in the resolution steps shown in

Table 4-3.

Table 4-2 Resolution steps that apply when setting the trigger delay time with INCR ++

/ DECR --

INCR ++ / DECR -- (s)

1 m, 2 m, 3 m, •••, 9 m

10 m, 20 m, 30 m, •••, 90 m

100 m, 200 m, 300 m, •••, 900 m

1, 2, 3, •••, 9

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Table 4-2 Resolution steps that apply when setting the trigger delay time with INCR ++

/ DECR --

INCR ++ / DECR -- (s)

10, 20, 30, •••, 90

100, 200, 300, •••, 900, 999

Table 4-3 Resolution steps that apply when setting the trigger delay time with INCR + /

DECR -

Trigger delay time Resolution

0 s through 100 ms 100 s

100 ms through 1 s 1 ms

1 s through 10 s 10 ms

10 s through 100 s 100 ms

100 s through 999 s 1 s

For the relationship between the trigger delay time and step delay time, refer to Figure 4-5 on page 102.

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Keysight E4980A, E4980AAL User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual