Used Agilent Agilent Used B2981A Manual

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Keysight B2980 Series Femto/Picoammeter Electrometer/High Resistance Meter

User’s Guide

Notices

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 as governed by United States and international copyright laws.

Manual Part Number

B2980-90010

Edition

Edition 1, August 2014 Edition 2, September 2014 Edition 3, February 2015 Edition 4, March 2016

Printed in:

Printed in Malaysia

Published by:

Keysight Technologies International Japan G.K. 9-1, Takakura-cho, Hachioji-shi, Tokyo 192-0033 Japan

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.

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 stan-

dard commercial license, which is embodied

End User License Agreement (EULA).

in its The license set forth in the EULA represents the exclusive authority by which the U.S. government may use, modify, distribute, or disclose the Soft-ware. The EULA and the license set forth therein, does not require or permit, among other things, that Keysight: (1) Furnish techni-cal information related to commercial com-puter software or commercial computer software documentation that is not customar-ily 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, 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 specifi-

in writing elsewhere in the EULA. Key-

cally sight shall revise respect to any technical data as defined by FAR 2.101, pursuant to FAR 12.211 and

27.404.2 ernment acquires no greater than Limited Rights as defined in FAR 27.401 or DFAR

227.7103-5 data.

be under no obligation to update,

or otherwise modify the Software. With

and DFARS 227.7102, the U.S. gov-

(c), as applicable in any technical

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 FIT-

NESS 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 OF ANY INFORMATION CONTAINED HEREIN. SHOULD KEYSIGHT AND THE USER HAVE A SEPARATE WRITTEN AGREEMENT WITH WARRANTY TERMS COVERING THE MATERIAL IN THIS DOCUMENT THAT CONFLICT WITH THESE TERMS, THE WARRANTY TERMS IN THE SEPARATE AGREEMENT SHALL CONTROL.

Open Software License

A portion of the software in this product is licensed under terms of the General Public License Version 2 (“GPLv2”). The text of the license and source code can be found at:

Declarations of Conformity for this product and for other Keysight products may be downloaded f

rom the Web.

COMPLIANCE WITH GERMAN NOISE REQUIREMENTS

This is to declare that this product is in conformance with the German Regulation on Noise Declaration for Machines (Lärmangabe nach der Maschinenlärminformation-Verordnung

-3.GSGV Deutschland).

• Herstellerbescheinigung

GERÄUSCHEMISSION

Lpa < 70 dB

am Arbeitsplatz

normaler Betrieb

nach DIN 45635 T. 19

• Manufacturer’s Declaration

ACOUSTIC NOISE EMISSION

Lpa < 70 dB

operator position

normal operation

per ISO 7779

South Korean Class A EMC declaration

This equipment is Class A suitable for professional use and is for use in electromagnetic environments outside of the home.

Safety Summary

The following general safety precautions must be observed during all phases of operation, service, and repair of this instrument. Failure to comply with these precautions or with specific warnings elsewhere in this manual may impair the protections provided by the instrument. In addition, it violates safety standards of design, manufacture, and intended use of the instrument. Keysight Technologies assumes no liability for customer’s failure to comply with these requirements.

For the Lithium-ion battery, also see “Safety Precautions for Lithium-ion Battery (Keysight part number B2980-90100)”.

Product manuals may be provided on CD-ROM or in printed form. Printed manual

for many products. Manuals may also be available on the Web.

option

NOTE Do not use this instrument in any manner not specified by the manufacturer. The protective

features of this instrument may be impaired if it is used in a manner not specified in the operation instructions.

This instrument is an INDOOR USE product.

This instrument complies with INSTALLATION CATEGORY II for mains input and INSTALLATION CATEGORY I for measurement input terminals, and POLLUTION DEGREE 2 defined in IEC 61010-1.

If an instrument is marked CAT I (IEC Measurement Category I), or it is not marked with a measurement category, its measurement terminals must not be connected to line-voltage mains.

WARNING Hazardous voltage of up to the instrument’s maximum voltage may appear at High terminal

if Interlock terminal is closed. Open the Interlock terminal when the High terminal is accessible. Voltage applied to the terminals will be limited up to ±21 V.

Do not work the interlock function intentionally in order to bring the output voltage to the safe level. While the high voltage indicator is lit, the dangerous voltage by the output voltage or the residual charge appears on the measurement terminal.

s are an

• DANGEROUS PROCEDURE WARNINGS

Warnings, such as WARNING on the previous page, shall be complied. Procedures throughout in this manual prevent you from potentially hazard. Their instructions contained in the warnings must be followed.

• BEFORE APPLYING POWER

Verify that all safety precautions are taken. Make all connections to the instrument before applying power. Note the instrument's external markings described under “Safety Symbols”.

• GROUND THE INSTRUMENT

This is Safety Class I instrument. To minimize shock hazard, the instrument chassis and cabinet must be connected to an electrical ground. The power terminal and the power cable must meet International Electrotechnical Commission (IEC) safety standards.

If the built-in battery is used for operation, connect the instrument chassis to an electrical ground through the earth (ground) terminal on the rear panel, for safety. Use the earthing wire furnished with the B2983A/B2987A.

• DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE

Do not operate the instrument in the presence of flammable gases or fumes. Operation of any electrical instrument in such an environment constitutes a definite safety hazard.

• DO NOT REMOVE COVERS

No operator serviceable parts inside. Refer servicing to qualified personnel. To prevent electrical shock do not remove covers.

• IN CASE OF DAMAGE

Instruments that appear damaged or defective should be made inoperative and secured against unintended operation until they can be repaired by qualified service personnel. Return the instrument to a Keysight Technologies sales or service office for services and repair to ensure that safety features are maintained.

• USE ONLY THE SPECIFIC ACCESSORIES

Specific accessories satisfy the requirements for specific characteristics for using the instrument. Use the specific accessories, cables, adapters, and so on for safety reasons.

Safety Symbols



The general definitions of safety symbols used on equipment or in manuals are listed below.

Direct current.

Alternating current.

Earth (ground) terminal.

Protective conductor terminal. For protection against electrical shock in case of a fault. Used with field wiring terminals to indicate the terminal which must be connected to ground before operating equipment.

Frame or chassis terminal. A connection to the frame (chassis) of the equipment which normally includes all exposed metal structures.

Grounded terminal which indicates the earth potential.

On supply.

Off supply.

Standby supply. The equipment will be marked with this symbol is not completely disconnected from AC mains when power switch is in the standby position.

In position of a bi-stable push switch.

Out position of a bi-stable push switch.

Hazardous voltage and potential for electrical shock. Do not touch terminals that have this symbol when the equipment is on.

Hot surface. Avoid contact. Surfaces are hot and may cause personal injury if touched.

Caution, refer to accompanying documentation. The equipment will be marked with this symbol when it is necessary for the user to refer to the instruction manual.

WARNING The warning sign denotes a hazard. It calls attention to a procedure, practice, condition or

the like, which, if not correctly performed or adhered to, could result in injury or death to personal.

CAUTION The caution sign denotes a hazard. It calls attention to an operating procedure, practice,

condition or the like, which, if not correctly performed or adhered to, could result in damage to or destruction of part or all of the equipment.

Read operator's manual. To indicate that the operator's manual or card should be read

CAT I

before continuing the operation.

Rechargeable battery.

IEC Measurement Category I

The CE mark shows that the product complies with all applicable European Directives.

UN Transportation Test

The CSA mark is a registered trademark of the Canadian Standards Association.

cURus : UL Recognized for Canadian and US market

The RCM mark is a registered trademark of the Australian Communications Authority. This signifies compliance with the Australian EMC Framework Regulations under the terms of the Radio communications Act.

This ISM device complies with Canadian ICES-001. Cet appareil ISM est conforme à la norme NMB-001 du Canada.

This is the symbol for an Industrial, Scientific and Medical, Group 1 Class A product. (CISPR

11)

Korea’s safety and EMC mark

China RoHS - Environmentally Green Product Label

China RoHS - Product with Toxic Substance 40 yr EPUP

China RoHS

The Chinese mark for paper-based packaging materials; Paperboard and Corrugated Fiberboard

Plastic Material Coding Identification

Four Arrow Recycling Mark, Taiwan

RBRC (Rechargeable Battery Recycling Corporation) Marking. For Canada and USA: Please call 1-800-822-8837 for information on how to recycle this battery.

FCC (Federal Communications Commission) Marking, USA

Three Arrow Recycling Mark: “mobius” logo and chemical symbols for recycling, Japan

PSE (Product Safety Electrical Appliance and Materials) Marking, Japan

Power Supply and Measurement Safety

High Low

• Power Supply Safety

This instrument can output high currents and voltages. Make sure that the load or device under test can safely handle the output current and voltage. Also, make sure that the connection leads can safely withstand the expected currents and are insulated for the expected voltages.

The instrument outputs may be connected so as to float relative to earth ground. Isolation or floating voltage ratings are indicated on the instrument, near the output terminal or the Chassis ground terminal. There is the danger of electric shock by touching the floated measurement terminals. Keep in mind it to protect yourself. And it is a reason of using the recommended accessories.

• Voltage/Current Measurement Safety

Multimeters and other instruments capable of measuring high voltages and currents are subject to specific safety concerns because of the circuits to which they may be connected. To safely use these instruments, you need to understand the markings on the instrument near the input terminals, which include the Protection Limits and the IEC Measurement Category.

• Protection Limits

Keysight multimeters and other voltage measurement instruments provide protection circuitry to prevent damage to the instrument and to protect against the danger of electric shock, provided the Protection Limits are not exceeded. To ensure safe operation of the instrument, do not exceed the Protection Limits shown on the input terminals.

• Voltage Source Terminals on Keysight B2985A/B2987A

Keysight B2985A/B2987A can apply DC voltage up to 1050 V between High and Low terminals. Voltage marked between the earth terminal and the Low/Common terminal indicates the floating usage limits.

High Voltage Shock Hazard



Keysight B2985A/B2987A can apply dangerous voltages (±1050 V) at the High/Low terminal. To prevent electric shock hazard, the following safety precautions must be observed during the use of Keysight B2985A/B2987A.

• Use a three-conductor AC power cable to appliance coupler (inlet) and the instrument to an electric ground (safety ground).

• Prepare shielding box which covers interface to a device under test and equipped with interlock circuit that opens when the door is opened.

• Before performing measurement, connect the interlock circuit to the Interlock terminal of this instrument.

• Confirm periodically that the interlock function works normally.

• Before touching the connections of the High/Low terminal, turn the instrument off and discharge any capacitors of the measurement path. If you do not turn the instrument off, complete “all” of the following items, regardless of any instrument’s settings.

• Terminate source output by pressing the On/Off switch, confirm that the On/Off

switch turns off.

• Confirm that the HV (high voltage) status indicator is not lit.

• Open the shielding box access door (open the Interlock terminal).

• Discharge any capacitors if the capacitance is connected to this instrument.

• Warn workers in the vicinity of the instrument about hazardous conditions.

Gefahr durch Hochspannung



Von den Geräten Keysight B2985A/B2987A können Spannungen an des High/Low-Anschlusses von bis zu 1050 V ausgehen. Um elektrischem Schlag vorzubeugen, ist bei der Benützung der Geräte Keysight B2985A/B2987A folgendes zu beachten.

• Verwenden Sie ein dreiphasiges AC-Stromkabel für die Gerätsteckvorrichtung (Eingang) und schließen Sie das Instrument an eine Erdung an (Sicherheitserdung).

• Bereiten Sie das Abschirmungsgehäuse vor, dass die Oberfläche eines zu testenden Geräts abdeckt und mit einem Verriegelungsstromkreis ausgestattet ist, der bei geöffneter Tür unterbrochen wird.

• Vor der Messung verbinden Sie den Verriegelungsstromkreis mit dem Interlock-Anschluss dieses Instruments.

• Prüfen Sie in regelmäßigen Abständen, dass die Verriegelungsfunktion ordnungsgemäß funktioniert.

• Bevor Sie die Verbindungen zu des High/Low-Anschlusses berühren, schalten Sie das Instrument aus und entladen alle Kondensatoren des Messwegs. Wenn Sie das Instrument nicht ausschalten, führen Sie, unabhängig von den Instrumenteinstellungen, alle folgenden Schritte durch.

• Beenden Sie die Messung, indem Sie auf die Taste “On/Off” drücken. Stellen Sie

sicher, dass die Statusanzeige “On/Off” nicht leuchtet.

• Stellen Sie sicher, dass die Anzeige “HV” nicht leuchtet.

• Öffnen Sie die Tür des Abschirmungsgehäuses (öffnen des Interlock-Anschlusses).

• Entladen Sie alle Kondensatoren, wenn die Kapazität mit das Instrument

verbunden ist.

• Warnen Sie Mitarbeiter in der Umgebung des Instruments vor den Gefahren.

Danger de choc dû à une haute tension



Une tension dangereuse (max. ± pour; 1050 Vdc) émanant du dispositif Keysight B2985A/B2987A peut être sortie aux la borne High/Low, d'appareil de protection ou de détection. Les précautions suivantes doivent être obserées contre commotion électrique accidentelle.

• Utilisez un câble d’alimentation CA à trois conducteurs vers le coupleur secteur (entrée) et branchez l’instrument sur une mise électrique à la terre (prise de terre de sécurité).

• Préparez le boîtier de protection qui couvre l’interface avec le dispositif à tester et équipez-le d’un circuit de sécurité qui s’ouvre lors de l’ouverture d’une porte.

• Avant de procéder aux mesures, connectez le circuit de sécurité à la borne Interlock de l’instrument.

• Vérifiez régulièrement le bon fonctionnement de la fonction de sécurité.

• Avant de toucher les connexions de la borne High/Low, mettez l’instrument hors tension et déchargez tout condensateur du chemin de mesure. Si vous ne mettez pas l’instrument hors tension, effectuez « toutes » les opérations ci-dessous, quels que soient les paramètres de l’instrument.

• Terminez les mesures en appuyant sur la touche On/Off ; vérifiez que l’indicateur

d’état On/Off est éteint.

• Vérifiez que le témoin HV est éteint.

• Ouvrez la trappe d’accès au boîtier de protection (ouvrez la borne Interlock).

• Déchargez les éventuels condensateurs si la capacité est connectée à l’instrument.

• Informez les personnes travaillant à proximité de l’instrument des conditions.

高電圧感電注意



Keysight B2985A/B2987A の High/Low 端子には、危険電圧が出力されることがあります

（最大 ±1050 Vdc）。感電事故防止のため、必ず以下の事柄を守ってください。

•3 極電源ケーブルを使用して本器を接地してください。

• ドアを開くことによって開放されるインターロック回路を装備し、被測定デバ

イスとのインタフェースを覆うことのできるシールド・ボックスを用意してください。

• 測定を開始する前にはインターロック回路を本器の Interlock 端子に接続してく

ださい。

• インターロック機能が正常であることを定期的に確認してください。

•High/Low端子に繋がる接続部に触れる前には、本器の電源を切断してください。

また、測定系のキャパシタを放電してください。電源を切らない場合は、以下の事項を全て実施してください。

•On/Offスイッチを押して On/Off スイッチが消灯したことを確認してくださ

い。

• 高電圧警告インジケータ（HV）が消灯していることを確認してください。

• シールド・ボックスのドアを開けてください（Interlock 端子を開放してくだ

さい）。

• 本器にキャパシタが接続されているならば、キャパシタを放電してくださ

い。

• 周囲のほかの作業者に対しても、高電圧危険に対する注意を徹底してください。

Product Stewardship

• Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC

This product complies with the WEEE Directive (2002/96/EC) marking requirements. The affixed label indicates that you must not discard this electrical/ electronic product in domestic household waste.

Product Category: With reference to the equipment types in the WEEE directive Annex 1, this product is classified as a “Monitoring and Control instrumentation” product.

Do not dispose in domestic household waste.

To return unwanted products, contact your local Keysight office or visit the following website for more information.

http://about.keysight.com/en/companyinfo/environment/

•

In This Manual

This manual describes the front panel operation, installation, and functions of the Keysight Technologies B2980 series. This manual consists of the following chapters.

• Chapter 1, "Introduction"

This chapter describes product overview, basic operation, accessories, and options of the Keysight B2980.

• Chapter 2, "Installation"

This chapter explains how to install the Keysight B2980.

• Chapter 3, "How to Perform Measurement"

This chapter explains how to perform measurement by using the Keysight B2980.

• Chapter 4, "Front Panel Reference"

This chapter provides the reference information of the Keysight B2980 front panel keys and graphical user interface.

• Chapter 5, "Function Details"

This chapter explains the several functions and initial settings of the Keysight B2980.

• Chapter 6, "Working with Battery"

This chapter describes installation, operation, and safety precautions for using Lithium-ion rechargeable battery. This chapter is for the B2983A/B2987A.

NOTE

NOTE The information is subject to change without notice due to the future enhancement.

For the specifications of the B2980 series, see Data Sheet.

The actual screen image on the B2980 may be different from the image shown in this manual.

Contents

1. Introduction

Keysight B2980 Series. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

To Use the Field Pointer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

To Change the Setting in the Field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

To Change the Settings on a Dialog Box . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Summary of Front Panel Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20

Software and Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

Productivity Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26

Furnished Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26

Available Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26

Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27

2. Installation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Inspecting the Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Checking the Operation of Keysight B2980. . . . . . . . . . . . . . . . . . . . . . . 2-4

Checking for Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Installing Keysight B2980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Safety Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Connecting the Power Cord. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Setting the Power Line Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Setting Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Bench Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Rack Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Keysight B2980 User’s Guide, Edition 4

Contents

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Self-test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Self-calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Installing the Interlock Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

Connecting to the Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

GPIB/USB Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

LAN Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Communicating Over the LAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

Using the Graphical Web Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

Using Telnet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

Using Sockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

Using Digital I/O and Trigger In/Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

3. How to P erform Mea s uremen t

Current Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Setup Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Measurement Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Aperture Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Common Terminal Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Voltage Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Setup Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Guarding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Resistance Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Setup Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28

Interlock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31

Voltage Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

Charge Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38

Keysight B2980 User’s Guide, Edition 4

Contents

Setup Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

About Charge Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41

Temperature and Humidity Measurement . . . . . . . . . . . . . . . . . . . . . . . . 3-42

Measurement Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44

Insulating Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44

Leakage Current on Connection Parts. . . . . . . . . . . . . . . . . . . . . . . . . . 3-44

Humidity and Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44

Offset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45

Cable Noise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45

External Noise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-46

Dielectric Absorption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-46

Capacitive Coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-47

Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-47

4. Front Panel Reference

Hard Keys and Rotary Knob. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Key Functions for Changing the Settings . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Display and Assist/Function Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

Meter View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

Graph View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31

Histogram View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34

Roll View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36

Status Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39

Helper Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40

System Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-41

Config key group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42

Output Connection dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44

Sweep dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45

Input Connection dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45

Keysight B2980 User’s Guide, Edition 4

Contents

Measure Filter dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-46

Wait Control dialog box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-46

Function key group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-48

Math Expression dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-48

Math Variable dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-49

Composite Limit Test Setup dialog box . . . . . . . . . . . . . . . . . . . . . . . . . 4-49

Limit Test Setup dialog box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-51

Trace Buffer Setup dialog box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-52

Trigger key group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-53

Trigger Configuration dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-53

Result key group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-56

Measure Result dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-56

Limit Test Result dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-56

Trace Statistical Result dialog box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-57

File key group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-58

File Selection dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-58

Program key group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-60

I/O key group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-61

Data Output Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-62

Format (Measure) dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-63

Format (Math/Limit) dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-63

Format (Trace) dialog box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-63

LAN Configuration dialog box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-64

DIO Configuration dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-64

DIO Read/Write dialog box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-65

BNC Configuration dialog box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-66

Display key group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-67

Display Preference dialog box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-68

System key group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-70

Keysight B2980 User’s Guide, Edition 4

Contents

5. Function Details

Measurement Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Automatic Ranging Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Setting the Ranging Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Measurement Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

Aperture Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

Overhead Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

To Control Source/Measure Timing (B2985A/B2987A). . . . . . . . . . . . . . 5-7

Null, Offset Cancel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

Current Measurement (B2981A/B2983A/B2985A/B2987A) and

Charge Measurement (B2985A/B2987A). . . . . . . . . . . . . . . . . . . . . . . . . 5-9

Voltage Measurement (B2985A/B2987A) . . . . . . . . . . . . . . . . . . . . . . . 5-10

Resistance Measurement (B2985A/B2987A). . . . . . . . . . . . . . . . . . . . . 5-11

Measurement Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

Analog Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

Voltage Source (B2985A/B2987A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16

Staircase Sweep Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16

List Sweep Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17

Square Waveform Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17

Ranging Mode of Voltage Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18

Output-Off Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18

Current Limiting Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19

Triggered Voltage Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19

Interlock Function (B2985A/B2987A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20

Temperature and Humidity Measurements ( B2985A/B2987A) . . . . . . . . 5-21

Temperature Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21

Humidity Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21

Math Expression. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22

Keysight B2980 User’s Guide, Edition 4

Contents

Predefined Math Expressions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22

Resources Used in the Expressions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25

Limit Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28

Trace Buffer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31

Program Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-34

Trigger System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-35

Trigger Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-37

Device Actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-37

Trigger Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-38

Save/Recall Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-40

File Access Function (Easy File Access). . . . . . . . . . . . . . . . . . . . . . . . . . . 5-41

PLC Detection and Setup Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-42

Real-time Noise Monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-43

Setup Integrity Checker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-45

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-45

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-46

Performing Noise Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-47

Considering Noise Reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-49

Execution Examples. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-50

Initial Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-52

6. Working with Battery

Before Using Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

Built-in Charge Level LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

To Install Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

To Remove Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

To Maximize Battery Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

Battery Charge Level Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

Keysight B2980 User’s Guide, Edition 4

Contents

Battery Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

Supplemental Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

Charging Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

To Use Instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

To Use Battery Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9

For Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9

For Battery Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12

Packing and Transportation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12

Spent Batteries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12

Keysight B2980 User’s Guide, Edition 4

Contents

Keysight B2980 User’s Guide, Edition 4

1Introduction

Introduction

This chapter describes the basic functions and features of Keysight B2980, and consists of the following sections.

• "Keysight B2980 Series"

• "Front View"

• "Rear View"

• "Software and Drivers"

• "Productivity Tools"

• "Accessories"

• "Options"

1-2 Keysight B2980 User’s Guide, Edition 4

Introduction

Keysight B2980 Series

Keysight B2980 series provides the product lineup listed below. Differences between models are summarized in Table 1-1.

• B2981A Femto/Picoammeter

• B2983A Femto/Picoammeter with Battery

Ammeter for ultra low DC current measurement in atto ampere resolution

• B2985A Electrometer/High Resistance Meter

• B2987A Electrometer/High Resistance Meter with Battery

All in one instrument supporting the functions of DC voltage source, voltmeter, ammeter, electrometer, and high resistance meter. This instrument also performs staircase/list sweep voltage output, square wave voltage output, temperature measurement, and humidity measurement.

The B2983A/B2987A has built-in Lithium-ion battery. Using it without connecting to AC power line is effective for realizing low noise measurement.

The B2980 has LCD, front panel keys, and rotary knob for controlling it alone. It also supports several functions, such as limit test, trace buffer, math expressions, and graph plot.

The SCPI (Standard Commands for Programmable Instruments) commands are available for performing automatic measurement using an external computer.

The B2980 is a LAN eXtended Interface Core compliant instrument.

Table 1-1 Keysight B2980 Series

Model

No.

B2981A no ± 21 mA none none none none

B2983A yes B2985A no ± 21 V ± 2.1 μC

B2987A yes

a. Just reference for the Manual V Control mode

Battery

operation

Keysight B2980 User’s Guide, Edition 4 1-3

Measurement function (maximum value)

Current Voltage Charge Resistance

1000 PΩ

Voltage source

(maximum value)

± 1050 V

Introduction

B2981A/B2983A B2985A/B2987A

Front View

This section describes the front view of Keysight B2980 series.

• Standby switch

Turns the instrument on or off. During the power is on, the LED below the switch turns green. After booting up normally, the front panel LCD displays the image as shown below. For the B2983A/B2987A, the LED turns orange during the switch is off and the battery charging is in progress.

1-4 Keysight B2980 User’s Guide, Edition 4

Introduction

Trigger auto

Trigger active

High voltage

Voltage Source floating

/common

Remote

Local lockout

Error

MOVE

/EDIT

LXI LAN status indicator

View mode

1/G/H/R

Voltmeter guard

/common

Battery operation

Front View

• Single key

Starts a single (one shot) measurement or initiates trigger system. Also triggers the staircase/list sweep output or the square wave output of the B2985A/ B2987A. If a repeat measurement is in progress, stops it and starts a single measurement. The measurement result is displayed on the Meter view, Graph view, Histogram view, or Roll view.

Once a single measurement starts, data buffer is cleared and stores the last single measurement result (maximum of 100000 data). It can be listed and displayed on the Measure Result dialog box.

NOTE If measurement is not performed properly, confirm the trigger setting. The trigger

type should be set to AUTO, or the trigger count (Count) should be set properly. See

"Trigger Setup Sub-panel" on page 4-28.

• Run/Stop key

Starts a repeat (continuous) measurement. If a repeat measurement is in progress, just stops it. The measurement result is displayed on the Meter view, Histogram view, or Roll view.

Once a repeat measurement starts, data buffer is cleared and stores the last repeat measurement result (maximum of 1000 data). It can be listed and displayed on the Measure Result dialog box.

• USB-A connector

Used to connect a USB memory. After disconnecting the USB memory, wait 10 seconds before connecting it again or new one.

CAUTION Turning the instrument off while the USB memory is being accessed may damage

the device.

•LCD

4.3” color TFT. Displays the instrument setup, measurement result, status information, etc. The status information is displayed near bottom of the display. The following indicators are available.

Keysight B2980 User’s Guide, Edition 4 1-5

Introduction

GraphMeter Histogram Roll

ViewViewViewView

Front View

• Function keys

Six function keys are placed below the LCD. They are assigned to the softkeys, SPEED, RANGE, Zoom, Clear, Apps, System Menu, and so on. The softkey assignment depends on the view mode (Meter, Graph, Histogram, or Roll).

• Assist keys

Five assist keys are placed right to the LCD. They are assigned to softkeys which assist you in changing the measurement setup. The softkey assignment depends on the view mode and the setup field in the EDIT (green) status.

•View key

Switches the softkey assignment for the function keys as follows.

• Softkeys available for the present view mode

• Softkeys for selecting the view mode

The following softkeys are available. Press one for selecting the view mode.

• Cancel / Local key

Cancels the setup operation if the instrument is in the local state.

Returns the instrument to the local state if it is in the remote control state.

• Rotary knob

If the field pointer is in the MOVE (blue) status, turning the knob moves the pointer. Pressing the knob fixes the pointer position and changes the pointer status to EDIT (green). See "To Use the Field Pointer" on page 1-10.

1-6 Keysight B2980 User’s Guide, Edition 4

Introduction

Front View

If the field pointer is in the EDIT (green) status, turning the knob changes the value of the setup parameter on the pointer. Pressing the knob fixes the value and changes the pointer status to MOVE (blue).

• Measurement navigation keys

Used to change SPEED and RANGE settings. The following keys are available.

Coarse Res Coarse resolution.

Increases measurement speed (decreases aperture time).

Range + Changes measurement range up.

[home] Sets AUTO range and Normal auto aperture.

Range - Changes measurement range down.

Fine Res Fine resolution. Decreases measurement speed

(increases aperture time).

• Null key

Enables or disables the null (offset cancel) function. For more detail, see "Null,

Offset Cancel" on page 5-9.

• Filter key

If the FILT indicator has turned off, pressing the Filter key opens the Measure Filter dialog box. Pressing OK after setting up the dialog box enables the filter function and turns the FILT indicator on.

If the FILT indicator has turned on, pressing the Filter key disables the function and turns the FILT indicator off.

• Math key

If the MATH indicator has turned off, pressing the Math key opens the Math Expression dialog box. Pressing OK after setting up the dialog box enables the math function and turns the MATH indicator on.

If the MATH indicator has turned on, pressing the Math key disables the function and turns the MATH indicator off.

• Save and Recall keys

Used to save/recall all setup information of the instrument. Five storage areas are available in the built-in non-volatile memory (NVRAM) for this purpose.

Keysight B2980 User’s Guide, Edition 4 1-7

Introduction Front View

Pressing the Save or Recall key opens a message box and displays five function keys used for selecting the storage area. Then pressing a function key saves or recalls the setup information.

The label #n <Empty> is set to the key for the unused storage area. The key for the used storage area has the label #n HH:MM:SS (time). Where, #n is #1, #2, #3, #4, or #5.

NOTE Save and Recall keys as arrow keys

The Save key is also assigned to the left arrow key.

The Recall key is also assigned to the right arrow key.

If the field pointer is in the EDIT (green) status on an alpha/numeric value entry field such as Voltage Source and File Name, the keys work to change the field pointer to the digit pointer. With the digit pointer, the keys work to move it.

Note that the keys cannot move the field pointer when it is in the MOVE (blue) status.

• Ammeter On/Off switch

Enables or disables Ammeter. In the On status, the Ammeter triaxial connector’s center conductor is connected to Ammeter and the switch turns green. In the Off status, it is connected to Common and the switch light turns off. Pressing the On (green) switch turns it to the Off status even if the instrument is in the remote control state.

• Voltmeter,

for B2985A and B2987A

No switch for Voltmeter. The voltmeter is always effective.

• Voltage Source On/Off switch,

for B2985A and B2987A

Enables or disables Voltage Source. In the On status, the Voltage Source High terminal is connected to Voltage Source and the switch turns green. In the Off status, the output terminal is opened and the switch light turns off. Pressing the On (green) switch turns it to the Off status even if the instrument is in the remote control state.

The switch turns red if the voltage source is in the high voltage state over ± 21 V.

1-8 Keysight B2980 User’s Guide, Edition 4

Introduction

¡60 % ¡40 % ¡20 % <20 %¡80 %

• Battery charge level indicator, for B2983A and B2987A

Indicates charge level of the built-in Lithium-ion rechargeable battery.

When the instrument power is off and the battery charging is in progress, the LED below the standby switch turns orange.

Front View

Keysight B2980 User’s Guide, Edition 4 1-9

Introduction Front View

To Use the Field Pointer

Use the field pointer to specify an entry field in the setup screen. The field pointer can take the following status. Change the status as needed during the setup. The present status can be known by the pointer color and the MOVE/EDIT indicator shown in "LCD" on page 1-5.

MOVE status The pointer is highlighted in blue. You can move the pointer

from field to field by turning the rotary knob.

EDIT status The pointer is highlighted in green. You can change the setting

in the field.

To Change the Setting in the Field

1. If the field pointer is green, press the rotary knob. The pointer status is changed to MOVE (blue).

2. Turn the rotary knob to move the field pointer.

3. Move the pointer on the field to change the setting and press the rotary knob. The pointer status is changed to EDIT (green).

4. Change the setting by turning the knob or pressing an assist key or a navigation key. The value is fixed by pressing the knob or an assist key. Fixing the value or pressing the Cancel/Local key changes the pointer status to MOVE (blue).

In the EDIT status on an alpha/numeric value entry field such as Voltage Source and File Name, the digit pointer is available.

Digit Pointer When an alpha/numeric value entry field is in the EDIT status (i.e., all digits in the

field are highlighted in green), pressing the Save, Recall, Coarse Res, or Fine Res key changes the pointer to the digit pointer, which points only one digit in the field. In this status, the following operations are available.

• Pressing Save, Recall, Coarse Res, or Fine Res key moves the digit pointer.

• Turning the rotary knob or pressing Range + or Range - key changes the value.

Changing the value from 9 to 0 or from 0 to 9 changes the value of the upper digit.

• Turning the rotary knob or pressing the Range +/Range - key on the decimal point moves the decimal point if real time update is OFF. For the real time update, see "Voltage Source Output (B2985A/B2987A)" on page 1-11.

1-10 Keysight B2980 User’s Guide, Edition 4

Introduction

Front View

When the digit pointer is available on an alpha numeric value entry field such as File Name and Variable Strings, the helper panel is displayed above the field. The helper panel allows you to enter a character into the specified digit. It is not available for the numeric value entry fields such as Voltage Source and Triggered Voltage Source.

Note that the Save, Recall, Coarse Res, and Fine Res keys cannot move the field pointer when it is in the MOVE (blue) status.

Voltage Source Output (B2985A/B2987A)

If the Voltage Source field is in the EDIT status, turning the rotary knob changes the display value and updates the voltage source output in real time.

However, if the digit pointer is available, the voltage source works as follows. The operation depends on the setting of the real time update.

• Real time update: ON

Turning the rotary knob changes the display value and updates the voltage source output in real time. Cannot move the decimal point using the digit pointer.

• Real time update: OFF

Turning the rotary knob just changes the display value. The value is applied to the voltage source output by pressing the rotary knob.

The setting of the real time update can be changed by using the Immediate Voltage Update by Knob field on the Display Preference dialog box opened by pressing the System Menu > More... (1 of 2) > Display > Pref. function keys.

To Change the Settings on a Dialog Box

1. Set the items on the dialog box in the same way as described in "To Change the

Setting in the Field" on page 1-10.

2. To apply the settings, press Apply.

To apply all settings and close the dialog box, press OK.

To cancel the setting change, press the Cancel/Local key instead of Apply.

Summary of Front Panel Operation

Front panel operations are summarized in Tables 1-2 to 1-9.

For details, see Chapter 4, "Front Panel Reference."

Keysight B2980 User’s Guide, Edition 4 1-11

Introduction Front View

Table 1-2 Basic Operations

Task Relevant front panel key

To turn the B2980 on/off Standby switch

To change the view mode

To enable/disable Ammeter Ammeter

To start a single (one shot) measurement

To start a repeat (continuous) measurement

To stop repeat measurement

To save the all setup information into the built-in

View

key

Single

key

Run/Stop

Save

key

On/Off

key

key or

switch

Single

key

non-volatile memory

To recall the setup information saved in the built-in

Recall

key

non-volatile memory

To display the field pointer if it is not shown Turning the rotary knob

To move the field pointer Turning the rotary knob

To switch the MOVE/EDIT status on an entry field Pressing the rotary knob on the entry field

To change the field pointer to the digit pointer

This is effective only for an alpha/numeric value entry field in the EDIT status.

To move the digit pointer

Pressing

Save, Recall, Coarse Res

, or

Fine Res

key when the alpha/numeric value entry field is in the EDIT status.

Save, Recall, Coarse Res

, or

Fine Res

key

To fix the value on the entry field in the EDIT status Rotary knob, assist key, or navigation key

To cancel the setup operation

To return to the upper menu of a function key or softkey

To return to the local state from the remote state

Cancel/Local

key

To clear measurement buffer Clear function key

To launch the setup integrity checker Apps function key > #1 assist key

To launch the data logger Apps function key > #2 assist key

1-12 Keysight B2980 User’s Guide, Edition 4

Task Relevant front panel key

Introduction

Front View

To launch the sequential measurement

Apps function key > #3 assist key

for B2985A/B2987A

To launch the demo slide show Apps function key > #4 assist key

To open the About B298xA dialog box Apps function key > #5 assist key

Table 1-3 Measurement Setup

Task Relevant front panel key

To set measurement speed/aperture time

To set measurement range

To use offset cancel/zero correction

To set measurement filter

Coarse Res

Range +

Null

Filter

/ [home] /

key

/ [home] /

Range -

Fine Res

key or SPEED function key

key or RANGE function key

System Menu > Config > Measure > Filter function keys

To set auto ranging speed System Menu > Config > Measure > Ranging function keys

To set trigger parameters on sub-panel Show Trigger assist key

To show range setup sub-panel Hide Noise/Hist./Roll/Trigger assist key

Or, Hide VS Func. assist key, for B2985A/B2987A

To select measurement mode for B2985A/B2987A

To set measurement mode applied to Analog Out for B2985A/B2987A

To select inner shield connection, guard or common, of the Voltmeter input terminal for B2985A/B2987A

To enable/disable the automatic discharge function for the charge measurement for B2985A/B2987A

Keysight B2980 User’s Guide, Edition 4 1-13

AMPS (I) / COUL (Q) / VOLTS (V) / OHMS (R) assist key

System Menu > Config > Measure > Connection function keys

System Menu > Config > Measure > Coulomb > Auto Dis. function keys

Introduction Front View

Task Relevant front panel key

To select the level of the automatic discharge function for the charge measurement for B2985A/B2987A

To select resistance calculation mode for the resistance measurement for B2985A/B2987A

To select voltage source control mode for the resistance measurement for B2985A/B2987A

To set the resistance measurement result to absolute format for B2985A/B2987A

To set the attenuation level for voltage measurement with the Keysight N1413A/N1414A adapter for B2985A/B2987A

To set up the source and measurement wait time for B2985A/B2987A

System Menu > Config > Measure > Coulomb > Dis. Level function keys

System Menu > Config > Measure > Ohms > V Select function keys

System Menu > Config > Measure > Ohms > V Control function keys

System Menu > Config > Measure > Ohms > Absolute function keys

System Menu > Config > Measure > Volts > Attn. function keys

System Menu > Config > Common > Wait function keys

1-14 Keysight B2980 User’s Guide, Edition 4

Table 1-4 Voltage Source Setup, for the B2985A/B2987A

Task Relevant front panel key

To set DC voltage output level Source assist key

On/Off

To enable/disable Voltage Source output Voltage Source

switch

Introduction

Front View

To start the sweep or square wave output

To select the Voltage Source Low

Single

key

System Menu > Config > Source > Connection function keys

terminal state, common or floating

To select output-off state System Menu > Config > Source > Connection function keys

To connect/disconnect the built-in series

System Menu > Config > Source > Connection function keys

resistor

To enable/disable real time update System Menu > Display > Pref. function keys

To set DC voltage output range Range setup sub-panel on the Meter view

To set square wave source Show VS Func. assist key

To set staircase sweep source Show VS Func. assist key

To set list sweep source Edit assist key for the list sweep Start/Stop/Points field in the

EDIT status

To set staircase sweep ranging mode System Menu > Config > Source > Sweep function keys

To set staircase sweep direction System Menu > Config > Source > Sweep function keys

To set output voltage after sweep System Menu > Config > Source > Sweep function keys

To set up the source and measurement

System Menu > Config > Common > Wait function keys

wait time

To show/hide source output preview Show Preview or Hide Preview assist key

To set the level of the source output

Range setup sub-panel on the Meter view

applied by receiving a trigger

Keysight B2980 User’s Guide, Edition 4 1-15

Introduction Front View

Table 1-5 Display Setup

Task Relevant front panel key

To change the color set System Menu > Display > Color Set function keys

To perform zoom-in/out Meter view Zoom function key

System Menu > Display > Zoom function keys

To change the data digits System Menu > Display > Digits function keys

To enable/disable the display when the instrument is in the remote condition

To show/hide Histogram preview Show Hist. or Hide Hist. assist key

To show/hide Roll preview Show Roll or Hide Roll assist key

To show/hide the display of secondary measurement data, temperature data, and/or humidity data, for B2985A/B2987A

Table 1-6 File Operations

Task Relevant front panel key

To save a measurement result data to USB memory

To save a math result data to USB memory System Menu > File > Save > Math function keys

To save a limit test result data to USB memory System Menu > File > Save > Limit Test function keys

To save a trace buffer data to USB memory System Menu > File > Save > Trace function keys

To save a system setting data to USB memory System Menu > File > Save > Config function keys

To save a graph screen damp to USB memory Dump Screen assist key on Graph/Roll/Histogram view

System Menu > Display > Remote function keys

System Menu > Display > Pref. function keys

System Menu > File > Save > Measure function keys

To load a system setting data from USB memory System Menu > File > Load > Config function keys

To load a license file from USB memory System Menu > File > Load > License function keys

To load a list sweep data from USB memory Load assist key for the list sweep Start/Stop/Points field

in the EDIT status

1-16 Keysight B2980 User’s Guide, Edition 4

Table 1-7 Miscellaneous Functions

Task Relevant front panel key

To see measurement result System Menu > Result > Measure function keys

Math

To use math expression

key

System Menu > Function > Math function keys

To see math result System Menu > Result > Measure function keys

To set limit test System Menu > Function > Limit Test function keys

To see limit test result System Menu > Result > Limit Test function keys

To set trace buffer System Menu > Function > Trace function keys

To see trace statistical result System Menu > Result > Trace function keys

To select program memory System Menu > Program > Catalog function keys

To control program memory System Menu > Program > Control function keys

Introduction

Front View

To set trigger parameters on sub-panel Show Trigger assist key

To set trigger parameters in detail System Menu > Trigger > Config function keys

To control trigger system System Menu > Trigger > Initiate/Abort/Immediate function

keys

Keysight B2980 User’s Guide, Edition 4 1-17

Introduction Front View

Table 1-8 Interface Setup

Task Relevant front panel key

To specify measurement data elements System Menu > I/O > Format > Measure function keys

To specify math and limit test data elements System Menu > I/O > Format > Math/Limit function keys

To specify trace statistical data elements System Menu > I/O > Format > Trace function keys

To select data output format System Menu > I/O > Format > Data Type function keys

To enable/disable byte swap of binary data System Menu > I/O > Format > Data Swap function keys

To set LAN configuration System Menu > I/O > LAN > Config function keys

To see status of LAN interface System Menu > I/O > LAN > Status function keys

To reset all of LAN connections System Menu > I/O > LAN > Reset function keys

To sets LAN settings to the default settings System Menu > I/O > LAN > Default function keys

To enable/disable Media Transfer Protocol for easy file access

To see status of USB interface System Menu > I/O > USB function keys

To set GPIB address System Menu > I/O > GPIB function keys

To see status of GPIB interface System Menu > I/O > GPIB function keys

To set configuration of Digital I/O System Menu > I/O > DIO > Config function keys

To read/write a value set to Digital I/O System Menu > I/O > DIO > R/W function keys

To set BNC Trigger In/Out System Menu > I/O > BNC function keys

System Menu > I/O > USB function keys

1-18 Keysight B2980 User’s Guide, Edition 4

Table 1-9 System Setup and Operations

Task Relevant front panel key

Introduction

Front View

To enable/disable power-on automatic detection of power line frequency

To set power line frequency System Menu > System > PLC function keys

To initialize B2980 System Menu > System > Reset function keys

To return B2980 to the condition when it is shipped from the factory

To perform self-calibration System Menu > System > Cal/Test > Self-Cal function keys

To perform self-test System Menu > System > Cal/Test > Self-Test function keys

To check errors System Menu > System > Error > Log function keys

To clear error log System Menu > System > Error > Clear function keys

To clear time stamp System Menu > System > Timestamp > Clear function keys

To set automatic clear of time stamp System Menu > System > Timestamp > Auto CLR function

To set start-up operation System Menu > System > Start-up function keys

To enable/disable beep and sound System Menu > System > Sound function keys

To select remote control command set System Menu > System > Language function keys

System Menu > System > Start-up function keys

System Menu > System > Factory Reset function keys

keys

To check revision information System Menu > System > Info. > Revision function keys

To set date and time System Menu > System > Info. > Date/Time function keys

To perform firmware update System Menu > System > Info. > Update > Firmware function

keys

To perform demonstration System Menu > System > Info. > Demo. function keys

To load a system setting data System Menu > File > Load > Config function keys

To install license file System Menu > File > Load > License function keys

Keysight B2980 User’s Guide, Edition 4 1-19

Introduction

B2981A/B2983A

B2985A/B2987A

InputOn

Common

Rear View

This section describes the rear view of Keysight B2980 series.

• Ammeter input connector

Triaxial connector for current measurement.

Ammeter ON or OFF can be controlled by the On/Off switch.

For protecting the connector, connect an open cap (furnished) when the ammeter is not used.

• Analog Out terminal

1-20 Keysight B2980 User’s Guide, Edition 4

Introduction

Analog Out



Rear View

Banana terminal for analog output. Always outputs the voltage proportional to the present measurement result. Maximum output voltage is ± 2 V.

For example, the output voltage is 2 V if the measurement result is the full scale value of the measurement range or 0.2 V if the result is 10 % of the full scale.

• Common terminal

Banana terminal for circuit common. This is the Common for the Ammeter, the Voltmeter, and the Analog Out.

For the grounded measurement, this terminal must be connected to the earth (ground) terminal by using a Banana-to-Lug cable (furnished).

WARNING If the Common terminal is not connected to the earth (ground) terminal (for

floating measurement), potentially hazardous voltage of up to ± 500 V may be applied to the Common terminal. To prevent electrical shock, do not touch any of measurement circuit at any time while a floating measurement is in progress. Also use accessories that comply with IEC 61010-2-031. All terminals and the extended conductors must be isolated by using insulation caps, sleeves, etc.

WARNING Si le terminal commun n'est pas connecté au terminal terrien (borne de terre)

(pour des mesures de flotte), une éventuelle tension dangereuse supérieure à ± 500 V peut être appliquée au terminal commun. Afin d’éviter toute décharge électrique, ne touchez aucune mesure de circuit à tout moment lorsque la mesure de flotte est en cours. Utiliser également des accessoires qui sont conformes à la norme IEC 61010-2-031. Toutes les bornes et les conducteurs prolongés doivent être isolés en utilisant des bouchons d'isolation, des manchons, etc.

• Earth (ground) terminal

Terminal connected to earth (ground) through the power cord. This terminal is also connected to the frame (chassis) of this instrument.

For B2983A/B2987A, if the power cord is removed from the instrument and the built-in battery is used for operation, connect the instrument chassis to an electrical ground through this terminal, for safety. Use the earthing wire furnished with the B2983A/B2987A.

CAUTION Do not apply current to this terminal. Doing so will damage the instrument.

Keysight B2980 User’s Guide, Edition 4 1-21

Introduction



High

Low

Rear View

• Trigger In and Out connectors

Two BNC connectors, one for trigger input, and one for trigger output. Used to perform the operation synchronized with an external equipment. For more information, see "Using Digital I/O and Trigger In/Out" on page 2-24.

• Digital I/O connector

D-sub 9 pin female connector for general purpose I/O (GPIO). Can be used as an interface to a handler or the likes. For more information, see "Using Digital I/O

and Trigger In/Out" on page 2-24.

• LAN interface connector

Connects to 10/100 Base-T interface. Left LED indicates activity. Right LED indicates link integrity.

• USB-B connector

Connects to USB interface.

• GPIB interface connector

Use Keysight 82357A/B USB/GPIB interface or Keysight 10833A/B/C/D/F/G GPIB cable to connect to an external computer or equipment.

• AC input connector

AC power cord is connected to this receptacle.

• Serial Number

You will need the instrument’s serial number when using Keysight Technologies telephone assistance program. The serial number label is attached to the bottom of the instrument.

• Voltage Source High and Low terminals, for B2985A and B2987A

Banana terminals for DC voltage output up to ± 1050 V.

Voltage Source ON or OFF can be controlled by the On/Off switch.

Low terminal state, circuit common or

floating, can be set by using the Low Terminal State field on the Output Connection dialog box opened by pressing the System Menu > Config > Source > Connection function keys.

• Voltmeter input connector, for B2985A and B2987A

1-22 Keysight B2980 User’s Guide, Edition 4

Introduction

Input

Guard

Common

Rear View

Triaxial connector for voltage measurement.

Voltmeter inner shield state, guard or circuit common, can be set by using the Voltage Measure Inner Shield field on the Input Connection dialog box opened by pressing the System Menu > Config > Measure > Connection function keys.

For protecting the connector, connect an open cap (furnished) when the voltmeter is not used.

• Interlock connector, for B2985A and B2987A

Connector for the interlock function. If the interlock terminals are open, the instrument output is limited to ± 21 V. Be sure to connect the terminals to an interlock circuit installed in a test fixture or a connection interface for performing measurements over this limit. If there is no interlock circuit, you need to install it. For details on how to install the interlock circuit, see "Installing

the Interlock Circuit" on page 2-14.

One connector head, Phoenix Contact 1881341 (4 pin) or equivalent, is furnished with the instrument for connecting an interlock circuit.

WARNING Dangerous voltage of up to the maximum voltage of ±1050 V may be present

between the High and Low terminals of the Voltage Source if the Interlock terminal is closed.

WARNING Une tension dangereuse supérieure à la tension maximale de ±1050 V risque

d’être présente à la borne du délivreur de haute tension si la borne d'enclenchement est fermée.

• Humidity sensor connector, for B2985A and B2987A

Connector for humidity sensor used for relative humidity measurements.

One connector head, Phoenix Contact 1551354 (5 pin) or equivalent, is furnished with the instrument for connecting a humidity sensor, E+E Elektronik EE07 or equivalent. The humidity sensor and the connection cable are not furnished with the instrument.

• Thermocouple connector, for B2985A and B2987A

Connector for Type K thermocouple used for temperature measurements.

One thermocouple, Keysight N1423A is furnished with the instrument.

Keysight B2980 User’s Guide, Edition 4 1-23

Introduction Software and Drivers

Software and Drivers

This section introduces software and drivers available for Keysight B2980.

• Quick IV Measurement Software

PC-based measurement control software. This powerful software makes it easy to quickly setup and perform I/V measurements and to display the measurement data in a table or graph without the need to perform any programming. The software allows you to control up to four B2900 channels over a GPIB or LAN connection, or one B2900 instrument via a USB connection.

Operating System: Windows 8.1 (64 bit/32 bit), 8 (64 bit/32 bit), 7 (64 bit/32 bit), XP SP3 (32 bit)

Other requirements: Microsoft .NET framework 4.0 or later and Keysight IO Libraries 16.0 or later

• Graphical Web Interface

Web browser based instrument control panel. It enables you to set up and perform a measurement easily and quickly from a web browser using the built-in web server. This allows you to control one B2980 over a LAN connection.

• IVI-C or IVI-COM drivers

Compatible with Windows 8.1 (64 bit/32 bit), 8 (64 bit/32 bit), 7 (64 bit/32 bit), XP SP3 (32 bit) IO Libraries 16.0 or later. Supports Keysight VEE, Microsoft Visual Studio (Visual Basic, Visual C++, Visual C#), National Instruments LabWindows and LabVIEW.

• LabVIEW driver (VI)

National Instruments LabVIEW 7.0 or later. LabView drivers are available at NI.COM.

1-24 Keysight B2980 User’s Guide, Edition 4

Productivity Tools

Table 1-10 lists the productivity tools for Keysight B2980.

Table 1-10 Productivity Tools

Model Number Option Item Description

N1410A Starter kit for B2985/B2987

• Triaxial to alligator clip cable, 200 V, 1.5 m, 1 ea.

• High resistance measurement universal adapter, 1 ea.

N1420A Setup integrity checker for B2980 series, fixed perpetual

license

N1422A High value resistor box for N1299A-301 evaluation kit

N1299A N1299A-301 Evaluation kit for B2981/83/85/87A

• High value resistor box, 1 ea.

Introduction

Productivity Tools

• Triaxial to alligator clip cable, 200 V, 1.5 m, 1 ea.

• Interlock cable, 4 pin terminal plug to 6 pin circular plug,

1.5 m, 1 ea.

• BNC coaxial cable, 1.5 m, 1 ea.

• Triaxial (m) to BNC (f) adapter, outer shield open, 1 ea.

• Carrying case, 1 ea.

• Demonstration guide, 1 ea.

Keysight B2980 User’s Guide, Edition 4 1-25

Introduction Accessories

Accessories

Furnished Accessories

Keysight B2980 is furnished with the following accessories.

• Quick Startup Poster, 1 ea.

• Quick Reference, 1 ea.

• Product Reference CD-ROM, 1ea.

• Keysight IO Libraries CD-ROM, 1ea.

• Power cord, 1 ea.

• Earthing wire, 2 m, 1 ea. for B2983A/B2987A

• USB cable, 1 ea.

• Banana to lug cable, 1 ea.

• Triaxial cable, 200 V, 1.5 m, 1 ea.

• Open cap for triaxial connector, 1 ea. for B2981A/B2983A, 2 ea. for B2985A/B2987A

• High voltage test lead set, 1000 V, 1.2 m, 1 ea. for B2985A/B2987A

• Thermocouple, type K, 3.5 m, 1 ea. for B2985A/B2987A

• Interlock connector head, 1 ea. for B2985A/B2987A

• Humidity probe connector head, 1 ea. for B2985A/B2987A

The Product Reference CD-ROM stores user manuals, programming examples, etc.

Available Accessories

For the available accessories for the Keysight B2900 series, see the catalog Accessories for the Keysight B2900 Precision Instrument Family.

1-26 Keysight B2980 User’s Guide, Edition 4

Options

Tabl e 1 - 11 lists the options for Keysight B2980.

Table 1-11 Options

Model Number Option Item Description

B2981A B2981A-A6J ANSI Z540 compliant calibration

B2981A-UK6 Commercial calibration certificate with test data

B2980A-1CM Rack mount kit

B2983A B2983A-A6J ANSI Z540 compliant calibration

B2983A-UK6 Commercial calibration certificate with test data

B2980A-1CM Rack mount kit

B2985A B2985A-A6J ANSI Z540 compliant calibration

Introduction

Options

B2985A-UK6 Commercial calibration certificate with test data

B2980A-1CM Rack mount kit

B2987A B2987A-A6J ANSI Z540 compliant calibration

B2987A-UK6 Commercial calibration certificate with test data

B2980A-1CM Rack mount kit

Keysight B2980 User’s Guide, Edition 4 1-27

Introduction Options

1-28 Keysight B2980 User’s Guide, Edition 4

2 Installation

Installation



This chapter describes how to install Keysight B2980 and covers the following topics.

• "Inspecting the Shipment"

• "Installing Keysight B2980"

• "Maintenance"

• "Installing the Interlock Circuit"

• "Connecting to the Interfaces"

• "Communicating Over the LAN"

• "Using Digital I/O and Trigger In/Out"

WARNING For the B2985A/B2987A users

There are potentially hazardous voltages (max. ±1050 V) present between the High and Low terminals of the Voltage Source. To prevent electrical shock, the following safety precautions must be observed during the use of the instrument.

• Use a three-conductor AC power cord to connect the cabinet (if used) and the instrument to an electrical ground (safety ground).

• If an interlock circuit is not installed in your test fixture or connection interface, you must install and connect the interlock circuit that opens the interlock terminal when the shielding box access door is opened.

• If you change the connection interface, test fixture, prober, and such, connect an interlock cable to the one actually used.

• Confirm periodically that the interlock function works normally.

• Before touching the connections on the High terminal, turn the instrument off and discharge any capacitors. If you do not turn the instrument off, complete all of the following items, regardless of the instrument settings.

On/Off

•Press the

• Confirm that the

switch, and confirm that the switch light turns off.

On/Off

switch does not turn red.

• Open the fixture cover or the shielding box access door (open interlock).

• Discharge any capacitors connected to the terminal.

• Warn persons working around the instrument about dangerous conditions.

2-2 Keysight B2980 User’s Guide, Edition 4

WARNING Pour les utilisateurs B2985A/B2987A



Il y a des tensions potentiellement dangereuses (max. ±1 050 V) entre les bornes Haute et Basse de la tension de la source. Afin d’éviter toute décharge électrique, les mesures de sécurité suivantes doivent être observées pendant l’utilisation de l’instrument.

• Utilisez un cordon d'alimentation CA à trois connecteurs pour connecter la cabine (si utilisée) et l'instrument à la mise électrique à la terre (sol de sécurité).

• Si un circuit de sécurité n'est pas installé dans votre test d'installation ou dans votre interface de connexion, vous devez installer et connecter le circuit de sécurité qui ouvre la borne d'enclenchement lorsque la porte d'accès à la protection de la boîte est ouverte.

• Si vous changez l'interface de connexion, un test d'installation, la sonde, ou toute autre élément, connectez un cordon d'enclenchement à celui utilisé actuellement.

• Vérifiez régulièrement que la fonction de verrouillage fonctionne normalement.

Installation

• Avant de toucher les connexions sur la borne haute, éteignez l'instrument et déchargez tous les condensateurs. Si vous n'éteignez pas l'appareil, complétez tous les éléments suivants, indépendamment des réglages de l'appareil.

• Appuyez sur le bouton On/Off, et confirmez que le signal lumineux est

éteint.

• Vérifiez que le bouton On/Off ne devienne pas rouge.

• Ouvrez le couvercle d'appareil ou la protection du boîtier de la porte

d'accès (verrouillage ouvert).

• Déchargez tous les condensateurs connectés au réseau.

• Informez les personnes se trouvant à proximité de l'appareil à propos des conditions dangereuses.

Keysight B2980 User’s Guide, Edition 4 2-3

Installation Inspecting the Shipment

Inspecting the Shipment

Perform the following inspections when Keysight B2980 and accessories arrive at your site.

1. Before unpacking any component, inspect all boxes for any signs of damage that might have occurred during shipment, such as:

•dents

• scratches

•cuts

• water marks

If you suspect any damage, contact Keysight Technologies.

2. When you open the boxes that contain the B2980 and accessories, check the components against the contents lists attached to the boxes.

If anything is missing, contact Keysight Technologies.

3. Verify the operation of the B2980 as described in "Checking the Operation of

Keysight B2980".

If any problem occurs, contact Keysight Technologies.

Checking the Operation of Keysight B2980

1. Make sure that the standby switch is set to off.

2. Connect the power cord from the B2980’s rear panel AC input connector (receptacle) to an AC power outlet at your site.

3. Press the standby switch to turn on the instrument.

The initialization screen will appear on the B2980’s front panel display, and the power-on self-test is automatically executed.

If the B2980 is operating normally, the front panel LCD displays the image as shown in Figure 2-1.

2-4 Keysight B2980 User’s Guide, Edition 4

Figure 2-1 Screen Image after Normal Power-on

B2981A/B2983A B2985A/B2987A

Checking for Errors

Errors can be checked as described below.

1. Press the System Menu > System > Error > Log function keys. This opens the Error Log dialog box.

2. Check the errors displayed on the dialog box.

If no error is detected, “0, No Error” is displayed.

Installation

Inspecting the Shipment

3. Press OK to close the dialog box.

Keysight B2980 User’s Guide, Edition 4 2-5

Installation Installing Keysight B2980

Installing Keysight B2980

This section describes information you must pay attention to when installing Keysight B2980.

• "Safety Considerations"

• "Environment"

• "Connecting the Power Cord"

• "Setting the Power Line Frequency"

• "Setting Date and Time"

• "Bench Installation"

• "Rack Installation"

Safety Considerations

Refer to the Safety Summary page at the beginning of this guide for general safety information. Before installation or operation, check the B2980 and review this guide for safety warnings and instructions. Safety warnings for specific procedures are located at appropriate places throughout this guide.

For the B2983A/B2987A, also see Chapter 6, "Working with Battery" for the safety precautions to use the built-in lithium-ion rechargeable battery.

Environment

WARNING Do not operate the instrument in the presence of flammable gasses or fumes.

WARNING Ne pas utiliser l’appareil en présence de gaz inflammables ou de fumée.

Environmental conditions for the B2980 are described below. The B2980 is designed for use in indoor facilities.

• Temperature range

Operating 0 °C to +45 °C

0 °C to +35 °C for charging battery

Storage -20 °C to +60 °C

2-6 Keysight B2980 User’s Guide, Edition 4

Installation

Installing Keysight B2980

• Humidity range

Operating 30 % to 80 %RH, non-condensing

Storage 10 % to 90 %RH, non-condensing

• Altitude

Operating 0 m to 2,000 m (6,561 ft.)

Storage 0 m to 4,600 m (15,092 ft.)

• Power requirement: 100-240 V (±10 %), 50/60 Hz

• Maximum volt-amps (VA): 80 VA

•Dimensions Without handle and feet: 88 mm (H) × 213 mm (W) × 350 mm (D) Bench configuration (with handle and feet): 104 mm (H) × 261 mm (W) × 374

mm (D)

Connecting the Power Cord

WARNING FIRE HAZARD: Use only the power cord supplied with your instrument.

Using other types of power cord may cause overheating of the power cord, resulting in fire.

SHOCK HAZARD: The power cord provides the chassis ground through a third conductor. Be sure to connect to a three-conductor type power outlet with the correct pin grounded.

WARNING Risque d’incendie : utilisez uniquement le cordon d'alimentation fourni avec

votre appareil. L’utilisation d’autres types de cordon d’alimentation peut provoquer une surchauffe du cordon d’alimentation et provoquer un incendie.

Risques de choc électrique : le cordon d’alimentation fournit la masse par le biais d’un troisième conducteur. Assurez-vous de connectez la prise d'alimentation de type trois conducteurs au boîtier exact mis à terre.

Connect the power cord to the IEC 320 connector on the rear of the instrument. If the wrong power cord was shipped with your instrument, contact Keysight Technologies. The AC input on the back of your instrument is a universal AC input. It accepts nominal line voltages in the range of 100 to 240 VAC.

Keysight B2980 User’s Guide, Edition 4 2-7

Installation Installing Keysight B2980

Option 900

• Plug: BS 1363/A, 250 V, 10 A

• PN: 8120-4420

Option 904

• Plug: NEMA 6-15P, 250 V, 10 A

• PN: 8120-3996

Option 918

• Plug: JIS C 8303, 125 V, 12 A

• PN: 8121-0743

Option 922

Option 901

• Plug: AS/NZS 3112, 250 V, 10 A

• PN: 8120-4419

Option 906

• Plug: SEV 1011, 250 V, 10 A

• PN: 8120-4416

Option 919

• Plug: Israel SI 32, 250 V, 10 A

• PN: 8121-0724

Option 923

Option 902

• Plug: IEC 60277-1, 250 V, 10 A

• PN: 8121-1226

Option 912

• Plug: SB 107-2-D1, 250 V, 10 A

• PN: 8121-1655

Option 920

• Plug: IRAM 2073, 250 V, 10 A

• PN: 8121-0725

Option 927

Option 903

• Plug: NEMA 5-15P, 125 V, 10 A

• PN: 8120-6825

Option 917

• Plug: IS 1293 and IS 6538, 250 V, 10 A

• PN: 8121-1690

Option 921

• Plug: CEI 23-16, 250 V, 10 A

• PN: 8121-0722

Option 930

• Plug: GB 1002 figure 3, 250 V, 10 A

• PN: 8120-8376

Option 931

• Plug: CNS 10917-2, 125 V, 10 A

• PN: 8121-1635

• Plug: SANS 164-1, 250 V, 10 A

• PN: 8121-0564

Option 932

• Plug: CS 0017, 250 V, 10 A

• PN: 8121-1638

• Plug: NEMA WD-6, 250 V, 10 A

• PN: 8120-0674

• Plug: NBR 14136, 250 V, 10 A

• PN: 8121-1809

2-8 Keysight B2980 User’s Guide, Edition 4

Installation

Installing Keysight B2980

NOTE The detachable power cord may be used as an emergency disconnecting device.

Removing the power cord will disconnect AC input power to the instrument.

Setting the Power Line Frequency

When the instrument is shipped from the factory, the power-on automatic detection of power line frequency is enabled. The boot up screen will show Power Line Frequency: AUTO. If the setting is not changed, you do not need to set the power line frequency.

However, you may want to specify the power line frequency by yourself. Then disable the power-on automatic detection, and press the following function keys.

• To specify 50 Hz: System Menu > System > PLC > 50 Hz

• To specify 60 Hz: System Menu > System > PLC > 60 Hz

• To detect and set the frequency: System Menu > System > PLC > Auto Detect

To disable or enable the power-on automatic detection, set OFF or ON to the Power-on PLC Detect field on the System Start-up dialog box opened by pressing System Menu > System > Start-up function keys.

Setting Date and Time

You can set the date and time on the Date and Time dialog box opened by pressing System Menu > System > Info. > Date/Time function keys.

Bench Installation

For easier display viewing and front panel access, you can tilt up the front of the instrument by turning the handle. To adjust the handle, grab the handle by the sides and pull outward. Then, rotate the handle to the desired position.

Keysight B2980 User’s Guide, Edition 4 2-9

Installation

Installing Keysight B2980

NOTE When the B2983A/B2987A works with the internal Li-ion battery, if ambient

temperature exceeds +45 °C, the instrument will cause emergency shutdown without saving setup information. To avoid this, make a space about 10 cm around the instrument and do not cover the instrument top and side.

Rack Installation

NOTE Use the Rack Mount kit (Option 1CM) to rack mount Keysight B2980.

NOTE When the B2983A/B2987A works with the internal Li-ion battery, if ambient

temperature exceeds +45 °C, the instrument will cause emergency shutdown without saving setup information. To avoid this, make a space about 2U (approx. 10 cm) above the instrument.

Keysight B2980 can be mounted in a 19-inch EIA rack cabinet. It is designed to fit in two rack-units (2U) of space.

Remove the front and rear rubber bumpers and the handle before rack mounting the B2980.

Removing the Bumper

Stretch a corner of the rubber bumper and slide it off.

Removing the Handle

1. Grab the handle by the sides and pull outward. This will allow you to rotate the handle.

2. Rotate the handle to a vertical position. Then, position the instrument horizontally.

2-10 Keysight B2980 User’s Guide, Edition 4

Installation

Installing Keysight B2980

3. Pull outward and then lift the handle upward.

CAUTION When reattaching the handle, pay attention to its direction. Incorrect attachment

may damage the hardware.

Keysight B2980 User’s Guide, Edition 4 2-11

Installation Maintenance

Maintenance

Maintenance should be performed periodically to keep Keysight B2980 in good condition. If problems arise, contact Keysight Technologies.

• "Cleaning"

• "Self-test"

• "Self-calibration"

• "Calibration"

Cleaning

WARNING SHOCK HAZARD: To prevent electric shock, unplug the B2980 before

cleaning.

WARNING Risques de choc électrique : afin d’éviter tout choc électrique, débranchez le

B2980 avant d’effectuer le nettoyage.

Use a dry cloth or a cloth slightly dampened with water to clean the external case parts. Do not use detergents or chemical solvents. Do not attempt to clean internally.

Self-test

Keysight B2980 provides the self-test function to check the operation. The self-test is automatically performed when the instrument is turned on. It is recommended to perform the self-test for the following condition or purpose. Before performing the self-test, turn the channel output off and disconnect test leads and cables from the terminals.

• If a channel is in the lock condition due to emergency

In this condition, the Emergency dialog box is displayed on the gray background screen, however this is not shown in the remote state if the remote display is set

On/Off

to OFF. And the ERR indicator turns on and the

Perform the self-test to unlock the channel. The channel can be used soon if the self-test does not report any problem.

• If you feel that the instrument may be defective

2-12 Keysight B2980 User’s Guide, Edition 4

switch is not effective.

• For preventive maintenance

Installation

Maintenance

To perfo r m self-test

To perfo r m self-calibration

The following procedure shows how to perform the self-test.

1. If it is in the remote state, press the

2. Press the

On/Off

switch and confirm that the switch turns off.

Cancel/Local

key.

3. Disconnect test leads and cables from the measurement and output terminals.

4. Press the following function keys.

System Menu > System > Cal/Test > Self-Test

Confirmation dialog box is opened.

5. Press OK. This starts the self-test.

Self-calibration

Keysight B2980 provides the self-calibration function to maintain the measurement performance. If the environmental temperature changes ± 3 °C or more, perform the self-calibration. This is effective for the accurate measurements by minimizing the effect of thermal drift. The self-calibration must be performed after warming-up of 60 minutes. Before performing the self-calibration, turn the voltage source output off and disconnect test leads and cables from the terminals.

The following procedure shows how to perform the self-calibration.

1. If it is in the remote state, press the

Cancel/Local

key.

2. Press the

On/Off

switch and confirm that the switch turns off.

3. Disconnect test leads and cables from the measurement and output terminals.

4. Press the following function keys. Confirmation dialog box is opened.

System Menu > System > Cal/Test > Self-Cal

5. Press OK. This starts the self-calibration.

Calibration

Calibration and adjustments must be performed periodically so that the instruments satisfy the specifications, and keep a good condition. It is recommended to perform the calibration once a year at least. For the calibration and adjustments, contact Keysight Technologies. Trained service personnel will perform the calibration and adjustments.

Keysight B2980 User’s Guide, Edition 4 2-13

Installation



Installing the Interlock Circuit

This section is applied to Keysight B2985A/B2987A which supports the interlock function. The interlock circuit is a simple electric circuit, as shown in Figure 2-2. The circuit electrically opens when an access door is opened, and closes when the door is closed.

The B2985A/B2987A cannot apply high voltages over ± 21 V when the interlock terminal is open. To apply high voltage, the B2985A/B2987A interlock terminal must be connected to the interlock circuit installed in the measurement environment such as the shielding box. The interlock circuit is important and necessary to prevent electrical shock when the user touches the output terminal.

WARNING Potentially hazardous voltages of up to ± 1050 V may be present between the

High and Low terminals of the Voltage Source when the interlock circuit is closed. To prevent electrical shock, do not expose the line.

WARNING Des tensions potentiellement dangereuses jusqu’à ±1 050 V risquent d’être

présentes entre les bornes Haute et Basse de la tension de la source lorsque le circuit de verrouillage est fermé. Afin d’éviter toute décharge électrique, n’exposez pas ces lignes.

Requirements • LED (Keysight part number 1450-0641 or equivalent), 1 ea.

• Mechanical switch (N1254A-402, 3101-3241, or equivalent), 2 ea.

• Interlock connector head, 4-pin plug, 1 ea., furnished, Phoenix Contact 1881341 (4 pin) or equivalent

• Connection wire, needs enough length from the shielding box to the Interlock connector on the B2985A/B2987A rear panel

Procedure 1. Mount two mechanical switches onto your shielding box, so that the switches

close when the access door is closed, and open when the door is opened. See

Figure 2-4 and Figure 2-5 for the switch dimensions.

2. Mount an LED onto your shielding box. See Figure 2-3 for the LED dimensions.

The LED is used as a high voltage indicator which is lit when the B2985A/B2987A is in the high voltage output status over ± 21 V.

3. Use a wire and connect the two switches in series between the pins 1 and 2 of the Interlock connector head.

2-14 Keysight B2980 User’s Guide, Edition 4

To connect the wire to the Interlock connector head, just insert the wire into the

Mechanical switches

Shielding box

LED

Access door

Interlock circuit

connected to B2985A/B2987A Interlock connector

Interlock connector head, 4-pin plug

1 2 3 4

Signal Ground Interlock 10 mA at 2 V in High voltage status Ground

5.6

Units: mm

Anode (+)

Cathode (-)

appropriate wire hole.

If you inserted the wire into a wrong hole, remove it and retry. You can remove the wire by pushing the associated button (orange) and pulling the wire.

4. Use a wire and connect the LED between the pins 3 and 4 of the Interlock connector head.

5. Connect the Interlock connector head to the Interlock connector on the B2985A/B2987A rear panel.

Figure 2-2 Interlock Circuit

Installation

Installing the Interlock Circuit

Figure 2-3 Dimensions of the LED (Keysight part number 1450-0641)

Keysight B2980 User’s Guide, Edition 4 2-15

Installation

3.1

35.6

8.1

COM

6.4

22.2

27.8

2.8

6.3 15.9 18.8

4.7510.3 4.3

2.8

3.2

10.3

2.8

3.1

Switch off

Units: mm

15.3

3.1

27.5

10.9

15.9

3.4

27.8

6.8

10.2

4.3

3.2

2.0

Switch off Switch on

Units: mm

Installing the Interlock Circuit

Figure 2-4 Dimensions of the Interlock Switch (N1254A-402)

Figure 2-5 Dimensions of the Interlock Switch (Keysight part number 3101-3241)

2-16 Keysight B2980 User’s Guide, Edition 4

Installation

Connect to GPIB interface card installed in PC.

Connect to GPIB port on instrument.

Instrument

GPIB cable

Connecting to the Interfaces

CAUTION Electrostatic discharges greater than 1 kV near the interface connectors may cause

the unit to reset and require operator intervention.

B2980 supports GPIB, LAN, and USB interfaces. All three interfaces are live at power-on. Connect your interface cable to the appropriate interface connector. Information on configuring the interfaces can be found later in this section.

The front panel LAN indicator is lit when the LAN port is connected and configured.

B2980 provides Ethernet connection monitoring. With Ethernet connection monitoring, the instrument’s LAN port is continually monitored and automatically reconfigured.

GPIB/USB Interfaces

NOTE For detailed information about GPIB and USB interface connections, refer to

Connectivity Guide installed with Keysight IO Libraries.

The following steps will help you quickly get started connecting your instrument to the GPIB (General Purpose Interface Bus). The following figure illustrates a typical GPIB interface system.

Keysight B2980 User’s Guide, Edition 4 2-17

Installation

Connect to USB port on PC.

Connect to USB port on instrument.

Instrument

USB cable

Connecting to the Interfaces

1. If you have not already done so, install Keysight IO Libraries Suite from the CD shipped with your product.

2. If you do not have a GPIB interface card installed on your computer, turn off your computer and install the GPIB card.

3. Connect your instrument to the GPIB interface card using a GPIB interface cable.

4. Use the Connection Expert utility from Keysight IO Libraries Suite to configure the installed GPIB interface card’s parameters.

5. B2980 is shipped with its GPIB address set to 23. To view or change the GPIB address, press the System Menu > I/O > GPIB function keys. The GPIB Configuration dialog box appears.

To change the GPIB address, use the rotary knob or the arrow keys, and press OK to set the value.

6. You can now use the Interactive IO within Connection Expert to communicate with your instrument, or program your instrument using various programming environments.

The following steps will help you quickly get started with connecting your USB-enabled instrument to the USB (Universal Serial Bus). The following figure illustrates a typical USB interface system.

1. If you have not already done so, install Keysight IO Libraries Suite from the CD

2. Connect the USB device port located on the back of your instrument to the USB

3. With the Connection Expert utility from Keysight IO Libraries Suite running,

2-18 Keysight B2980 User’s Guide, Edition 4

shipped with your product.

port on your computer.

the computer will automatically recognize the instrument. This may take several seconds. When the instrument is recognized, your computer will display the VISA alias, IDN string, and VISA address.

Installation

To network interface card (NIC).

Connect to LAN port on instrument.

Instrument

LAN cable

To site LAN

Connecting to the Interfaces

You can also view the instrument’s VISA address from the front panel. Press the System Menu > I/O > USB function keys. The VISA address is shown in the USB Status dialog box.

4. You can now use the Interactive IO within Connection Expert to communicate with your instrument, or program your instrument using various programming environments.

LAN Interface

NOTE For detailed information about LAN interface connections, refer to Connectivity

Guide installed with Keysight IO Libraries.

The following steps will help you quickly get started with connecting and configuring your instrument on a local area network.

Connecting to a Site LAN

A site LAN is a local area network in which LAN-enabled instruments and computers are connected to the network via routers, hubs, and/or switches. They are typically large, centrally-managed networks with services such as DHCP and DNS.

1. If you have not already done so, install Keysight IO Libraries Suite from the CD shipped with your product.

2. Connect the instrument to the site LAN. The factory-shipped instrument LAN settings are configured to automatically obtain an IP address from the network using DHCP (DHCP: Enabled). Note that this may take up to one minute. The DHCP server will register the instrument’s hostname with the dynamic DNS server. The hostname as well as the IP address can then be used to communicate with the instrument. The front panel LAN indicator will turn green when the LAN port has been configured successfully, or turn red if the configuration fails.

Keysight B2980 User’s Guide, Edition 4 2-19

Installation Connecting to the Interfaces

NOTE If you need to manually configure any instrument LAN settings, see "LAN

Configuration dialog box" on page 4-64 for information about configuring the LAN

settings from the front panel of the instrument.

3. Use the Connection Expert utility from Keysight IO Libraries Suite to add the B2980 and verify the connection. To add the instrument, you can request Connection Expert to discover the instrument. If the instrument cannot be found, add the instrument using the instrument’s hostname or IP address.

NOTE If this does not work, refer to the troubleshooting section in Connectivity Guide.

4. You can now use the Interactive IO within Connection Expert to communicate with your instrument, or program your instrument using various programming environments. You can also use the Web browser on your computer to connect to the instrument as described under "Using the Graphical Web Interface" on page

2-21.

Viewing the Active LAN Status

To view the currently active LAN settings, press the System Menu > I/O > LAN > Status function keys. The LAN status dialog box appears.

Note that the currently active LAN settings for the IP Address, Subnet Mask, and Default Gateway may be different from the settings specified in the LAN Configuration dialog box, depending on the configuration of the network. If the settings are different, it is because the network has automatically assigned its own settings.

Modifying the LAN Settings

As shipped from the factory, B2980’s pre-configured settings should work in most LAN environments. If you need to manually configure these settings, press the System Menu > I/O > LAN > Config function keys. The LAN Configuration dialog box appears.

NOTE B2980 must be rebooted if the host name is changed.

For the LAN setup parameters, see "LAN Configuration dialog box" on page 4-64.

2-20 Keysight B2980 User’s Guide, Edition 4

Installation

XXX.XXX.XXX.XXX

Keysight B2987A Electrometer / High R Meter

Another web enabled instrument from Keysight Technologies

B2987A Electrometer / High R Meter

Communicating Over the LAN

Using the Graphical Web Interface

B2980 has a built-in graphical web interface that lets you control it directly from an Web browser on your computer. Multiple simultaneous connections are allowed, but only from one computer. With additional connections, performance will be reduced. Multiple connections from multiple computers are not allowed.

With the graphical web interface, you can access the front panel control functions including the LAN configuration parameters. This is a convenient way to communicate with the B2980 without using I/O libraries or drivers.

NOTE The built-in graphical web interface only operates over the LAN interface. It

requires Internet Explorer 6+ or Firefox 2+. You will also need the Java Plug-in. This is included in the Java Runtime Environment. Refer to Java’s website.

The graphical web interface is enabled when shipped.

Keysight B2980 User’s Guide, Edition 4 2-21

Installation Communicating Over the LAN

To launch the graphical web interface:

1. Open a Web browser on your computer.

2. Enter the instrument’s hostname or IP address into the browser’s Address field to launch the graphical web interface. The B2980 home page will appear.

3. Click on the Browser Web Control button in the navigation bar on the left to begin controlling your instrument.

4. For additional help about any page, click “Help with this Page”.

If desired, you can control the access to the graphical web interface using password protection. As shipped from the factory, the password is set to keysight. To change the password, click on the View & Modify Configuration button. Refer to the online help for additional information about setting the password.

Using Telnet

The Telnet utility (as well as sockets), is another way to communicate with B2980 without using I/O libraries or drivers. In all cases, you must first establish a LAN connection from your computer to the B2980 as previously described.

In an MS-DOS Command Prompt box, type “telnet hostname 5024” where hostname is the B2980’s hostname or IP address, and 5024 is the instrument’s telnet port. You should get a Telnet session box with a title indicating that you are connected to the B2980. Type the SCPI commands at the prompt.

Using Sockets

NOTE B2980 allows any combination of up to four simultaneous data socket, control

socket, or telnet connections to be made.

Keysight instruments are standardized on using port 5025 for SCPI socket services. A data socket on this port can be used to send and receive ASCII/SCPI commands, queries, and query responses. All commands must be terminated with a newline for the message to be parsed. All query responses will also be terminated with a newline.

The socket programming interface also allows control socket connections. The control socket can be used by a client to send device clear and to receive service requests. Unlike the data socket, which uses a fixed port number, the port number for a control socket varies and must be obtained by sending the following SCPI query to the data socket: SYSTem:COMMunicate:TCPip:CONTrol?

2-22 Keysight B2980 User’s Guide, Edition 4

Installation

Communicating Over the LAN

Once the port number is obtained, a control socket connection can be opened. As with the data socket, all commands to the control socket must be terminated with a newline, and all query responses returned on the control socket will be terminated with a newline.

To send a device clear, send the string “DCL” to the control socket. When the B2980 has finished performing the device clear, it will echo the string “DCL” back to the control socket.

Service requests are enabled for control sockets using the Service Request Enable register. Once service requests have been enabled, the client program listens on the control connection. When SRQ becomes true, the instrument will send the string “SRQ +nn” to the client. The “nn” is the status byte value, which the client can use to determine the source of the service request.

Keysight B2980 User’s Guide, Edition 4 2-23

Installation Using Digital I/O and Trigger In/Out

Using Digital I/O and Trigger In/Out

B2980 has a Digital I/O connector, D-sub 9 pin female, for general purpose input/output (GPIO). It can be used for:

• Trigger input

• Trigger output

• Digital signal input/output

• Digital signal input

• Start of Test (SOT) input (for component handlers)

• Busy status output (for component handlers)

• End of Test (EOT) output (for component handlers)

The pin assignment of the Digital I/O connector is shown in Table 2-1. Pins DIO 1 to DIO 7 can be assigned to one of the above functions. To set the DIO functions, press the System Menu > I/O > DIO > Config function keys. For details, see "DIO

Configuration dialog box" on page 4-64.

B2980 also has the Trigger In and the Trigger Out BNC connectors used for the trigger input/output. They are used to perform the operation synchronized with an external equipment. The BNC connectors are useful for making the connection easier than the Digital I/O connector.

• Connect a BNC cable between the Trigger In connector and a trigger output BNC connector on an external equipment to receive a trigger signal from it.

• Connect a BNC cable between the Trigger Out connector and a trigger input BNC connector on the external equipment to send a trigger signal to it.

Figure 2-6 shows the input/output circuits internally connected to each pin of the

Digital I/O connector and the Trigger In/Out connector.

2-24 Keysight B2980 User’s Guide, Edition 4

Using Digital I/O and Trigger In/Out

Vcc

to Digital I/O, Trigger In, Trigger Out

from Output control

Vcc: +5 V R1: 5 kohm R2: 100 ohm

to Input control

Figure 2-6 Internal Circuit of Digital I/O and Trigger In/Out

Table 2-1 Digital I/O Pin Assignment

Pin Number Description

1DIO 1

Installation

2DIO 2

3DIO 3

4DIO 4

5 GND

6DIO 5

7DIO 6

8DIO 7

9+5 V

Keysight B2980 User’s Guide, Edition 4 2-25

Installation Using Digital I/O and Trigger In/Out

2-26 Keysight B2980 User’s Guide, Edition 4

3 How to Perform Measurement

How to Perform Measurement

This chapter explains how to perform measurement by using Keysight B2980.

• "Current Measurement"

• "Voltage Measurement"

• "Resistance Measurement"

• "Charge Measurement"

• "Temperature and Humidity Measurement"

• "Measurement Considerations"

WARNING To avoid electrical shock and instrument damage, turn the instrument off

before connecting or disconnecting measurement cable.

To avoid touching the end of the extension cable or the terminal area with the device under test (DUT), cover over the conductors with insulator. Also it is important to protect the terminal area by using the grounded shield cover and such.

To prevent electrical shock and DUT damage, do not connect or disconnect the DUT while the source output is applied.

When you touch the DUT after measurement, devise a countermeasure of residual charge and heat to prevent electrical shock and burn. Use glove and any tool. Also have enough time for discharge and radiation.

WARNING Pour éviter une décharge électrique et un risque d'endommagement de

l'appareil, mettre l’appareil hors tension avant de brancher ou de débrancher le câble de mesure.

Afin d'éviter de toucher l'extrémité du câble d'allongement ou l'aire de la borne avec l'appareil mis sous tension (AST), couvrez les conducteurs avec l'isolant. En outre, il est important de protéger la zone de la borne en utilisant le couvercle d'écran à la mise à terre, ou tout autre élément.

Afin d’éviter toute décharge électrique et dommage MST, ne branchez ou déconnectez pas la sortie MST alors que la source de sortie est appliquée.

Lorsque vous touchez le MST après la mesure, élaborez une contre-mesure de la charge résiduelle et du chauffage afin d'éviter tout choc électrique et toute brûlure. Utilisez des gants et des outils. Prévoyez également du temps pour la décharge et la radiation.

3-2 Keysight B2980 User’s Guide, Edition 4

NOTE Using the built-in battery

B2983A/B2987A installs a built-in battery. If the power cord is removed from the instrument and the built-in battery is used for operation, connect the instrument chassis to an electrical ground through the earth (ground) terminal on the rear panel, for safety. Use the earthing wire furnished with the B2983A/B2987A.

NOTE Turning the instrument on or off

Press the standby switch. When the power is on, the LED below the switch turns green.

For the B2983A/B2987A, the LED turns orange during the switch is off and the battery charging is in progress.

NOTE Setting the instrument to the local state

How to Perform Measurement

Press the

Cancel/Local

in the local state.

NOTE On/Off switches

The

On/Off

switch shows the following lighting status to indicate the status of

Ammeter or Voltage Source (B2985A/B2987A) associated with the switch.

off OFF (disable) status

green ON (enable) status

red High voltage status of Voltage Source, for the B2985A/B2987A

Pressing the

(green) switch turns it to the OFF status even if the instrument is in

the remote control state.

NOTE Starting measurement

Press the

Single

key to start a single (one shot) measurement.

Run/Stop

key to start a repeat (continuous) measurement.

If a repeat measurement is in progress, pressing the

key. The front panel keys are available when the instrument is

Single

Run/Stop

key stops it.

Keysight B2980 User’s Guide, Edition 4 3-3

How to Perform Measurement

NOTE Before changing the connections of DUT

Set the instrument output off before changing the connections of device under test (DUT). If not, the DUT may be damaged.

To set the B2985A/B2987A Voltage Source output off, press the confirm that the lighting status is off.

NOTE If the instrument is in the lock condition due to emergency

In this condition, the Emergency dialog box is displayed on the gray background screen, however this is not shown in the remote state if the remote display is set to

On/Off

OFF. And the ERR indicator turns on and the

switch is not effective.

Perform the self-test to unlock the instrument. The instrument can be used soon if the self-test does not report any problem.

NOTE About measurement accuracy

• RF electromagnetic field and measurement accuracy

Current, charge, resistance, and voltage measurement accuracty may be affected by RF electromagnetic field of strength over 3 V/m at frequencies 80 MHz to 1 GHz and 1.4 GHz to 20. GHz, and 1 V/m at frequencies 2.0 GHz to 2.7 GHz. The extent of this effect depends upon how the instrument is positioned and shielded.

• Induced RF field noise and measurement accuracy

Current, charge, resistance, and voltage measurement accuracy can be affected by induced RF field noise strengths greater than 3 Vrms in the frequency range of 150 kHz to 80 MHz. The extent of this effect depends upon how the instrument is positioned and shielded.

On/Off

switch and

3-4 Keysight B2980 User’s Guide, Edition 4

How to Perform Measurement

Current Measurement

The B2981A/B2983A/B2985A/B2987A supports the current measurement capability shown in Tab l e 3-1.

Table 3-1 Current Measurement Range, Value, and Resolution

Range value Measurement value Display resolution

2 pA 0 ≤ |I| ≤ 2.1 pA 1 aA

20 pA 0 ≤ |I| ≤ 21 pA 10 aA

200 pA 0 ≤ |I| ≤ 210 pA 100 aA

2 nA 0 ≤ |I| ≤ 2.1 nA 1 fA

20 nA 0 ≤ |I| ≤ 21 nA 10 fA

200 nA 0 ≤ |I| ≤ 210 nA 100 fA

2 μA0 ≤ |I| ≤ 2.1 μA1 pA

Current Measurement

20 μA0 ≤ |I| ≤ 21 μA 10 pA

200 μA0 ≤ |I| ≤ 210 μA 100 pA

2 mA 0 ≤ |I| ≤ 2.1 mA 1 nA

20 mA 0 ≤ |I| ≤ 21 mA 10 nA

Requirements Before turning the instrument on, connect cable, test leads, test fixture, and so on,

used for the measurement. See Figures 3-2 and 3-3 for connection examples.

The following accessories can be used.

• Triaxial cable, 200 V, 1.5 m

• Triaxial bulkhead connector, if needed

• Banana to lug cable, for connecting Common to chassis ground

Instead of the triaxial cable and the triaxial bulkhead connector, Keysight N1415A Triaxial to alligator clip cable, 200 V, 1.5 m can be used.

NOTE When turning the instrument on, leave the end of the measurement path open.

Keysight B2980 User’s Guide, Edition 4 3-5

How to Perform Measurement

InputOn

Common

Shield

Input

Chassis ground

Triaxial cable

Common is connected to chassis ground by using Banana-to-lug cable.

Triaxial bulkhead connector

CommonChassis

Chassis ground

Triaxial cable

Guard shield

Triaxial bulkhead connector

Chassis ground

Common

Current Measurement

Figure 3-1 Simplified Circuit Diagram of Ammeter

Figure 3-2 Current Measurement Connection, Grounded, Typical

Figure 3-3 Current Measurement Connection (if DUT has a non-ground potential)

Safety Shield

NOTE For floating the ammeter, do not connect any cable between Common and chassis

Safety Earth ground

ground. See "Common Terminal Connection" on page 3-12 for more information.

3-6 Keysight B2980 User’s Guide, Edition 4

How to Perform Measurement

Procedure You can perform the current measurement as follows.

Current Measurement

Step 1. Press the

For the B2985A/B2987A, also press the

View

key and the Meter View function key to display the Meter view.

AMPS (I)

assist key to set the current

measurement mode.

Step 2. Use the navigation keys or the RANGE function key to set

the measurement range you want to use. See "Measure

Amps" on page 3-8 for more information.

Step 3. Use the navigation keys or the SPEED function key to set

the measurement speed (aperture time) you desire. See

"Aperture Time" on page 3-8 for more information.

Filter

Step 4. Press the

key to open the Measure Filter dialog box. And set the measurement

filter on the dialog box. See "Filter" on page 3-8 for more information.

Step 5. Connect measurement current (DUT).

See Figure 3-2 for the typical current measurement.

See Figure 3-3 if DUT has a non-ground potential.

On/Off

Step 6. Press the Ammeter

switch to enable Ammeter. This turns the switch green.

Step 7. Start measurement as follows.

•Press the

Single

key to start a single (one shot) measurement. Current

measurement is performed once.

•Press the

Run/Stop

key to start a repeat (continuous) measurement. Current

measurement is performed repeatedly. Minimum measurement interval is 10 ms.

Step 8. Press the Ammeter

On/Off

For more precise measurement, use the zero correction or offset cancel. See "Null,

Offset Cancel" on page 5-9.

NOTE Setup integrity checker

You can easily check the noise level of the measurement path such as cabling and connection by pressing the Apps function key and the

For more information and using this function, see "Applications" on page 4-17.

Keysight B2980 User’s Guide, Edition 4 3-7

switch to disable Ammeter. This turns off the switch light.

assist key.

How to Perform Measurement Current Measurement

NOTE Data logger

You can easily perform measurements like a sampling measurement by pressing the Apps function key and the

For more information and using this function, see "Applications" on page 4-17.

Setup Parameters

This section briefly describes how to set key parameters effective for accurate and reliable current measurement.

Measure Amps

Press the RANGE function key to change the ranging mode, auto or fixed. Where, the softkey label shows the present measurement range setting, AUTO or fixed range value.

Measurement range can be set by using the following navigation keys.

Range + Sets the fixed range mode and changes the range up.

[home] Sets the AUTO range and the Normal auto aperture.

assist key.

Range - Sets the fixed range mode and changes the range down.

See "Measurement Range" on page 3-9 for more information.

Aperture Time

Press the SPEED function key to change the aperture mode, auto or manual. Where, the softkey label shows the present aperture time setting.

Aperture time can be set by using the following navigation keys.

Coarse Res Increases measurement speed (decreases aperture time).

[home] Sets the Normal auto aperture and the AUTO range.

Fine Res Decreases measurement speed (increases aperture time).

See "Aperture Time" on page 3-10 for more information.

Filter

Measurement filter function can be enabled/disabled by using the Filter key.

3-8 Keysight B2980 User’s Guide, Edition 4

How to Perform Measurement

Current Measurement

If the FILT indicator is turned off, pressing the Filter key opens the Measure Filter dialog box. Pressing OK after setting up the dialog box enables the filter function and turns the FILT indicator on.

If the FILT indicator is turned on, pressing the Filter key disables the function and turns the FILT indicator off.

The filter function is used to average measurement result data, calculate moving average, and so on. For the precise and reliable measurement, it is recommended to use the filter function, see "Measurement Filter" on page 5-12 for more information.

Measurement Range

Measurement range is the factor to determine the coverage of measurable values.

The following ranging modes are available. The mode can be selected by pressing the RANGE function key. Where, the softkey label shows the present measurement range setting, AUTO or fixed range value.

• Automatic ranging mode, AUTO

Instrument automatically selects and uses the range which provides the best resolution for the measurement value.

• Fixed range mode, FIXED

Instrument uses the specified range only.

The measurement range can be set by using the following navigation keys.

Range + Sets the fixed range and changes the range up.

[home] Sets the AUTO range and the Normal auto aperture.

Range - Sets the fixed range and changes the range down.

The measurement range can also be set by using the Measure fields. The ranging mode (left field) and the range value (right field) are set by pressing an assist key available when the relative field is in the EDIT status. Where, the softkey label shows Volts, Amps, Ohms, or Coulomb. For more information, see "Range Setup

Sub-panel" on page 4-23 and "Measurement Range" on page 5-3.

Keysight B2980 User’s Guide, Edition 4 3-9

How to Perform Measurement Current Measurement

NOTE Automatic ranging speed

The setting speed can be specified by pressing the System Menu > Config > Measure > Ranging function keys. The softkey label shows Normal or Fast.

The instrument performs normal range changing when this softkey label shows Ranging Normal.

The instrument reduces range changing wait time when this softkey label shows Ranging Fast. This setup is effective for performing high speed measurement when the measurement result is stable.

NOTE Automatic ranging operation

If the measured value is < 9.5 % of the range value, the instrument changes the range down and performs measurement again. If the measured value is > 105 % of the range value, the instrument changes the range up and performs measurement again.

NOTE After the mode is changed from AUTO to FIXED

The instrument keeps the last used range. And the RANGE function key shows its value.

Aperture Time

Aperture time is the observation time required for getting a point of data, and does not include such factors as range change or data compensation, which would be overhead time. For accurate and reliable measurements, the aperture time should be increased.

The following aperture modes are available. The mode can be selected by pressing the SPEED function key. Where, the softkey label shows the present aperture time setting.

• Automatic aperture mode

Instrument automatically selects and sets optimum aperture time for performing accurate and reliable measurements. The instrument provides three types, Quick, Normal, and Stable, for the automatic setup. See Figure 3-4 for image of the automatic aperture operation. Use Stable if measurement data is noisy.

• Manual aperture mode

3-10 Keysight B2980 User’s Guide, Edition 4

How to Perform Measurement

Aperture time (Integration time)

Long Æ

Measurement range

Large Æ

Quick

Normal

Stable

Current Measurement

Instrument uses the specified aperture time. The instrument provides six values,

0.001*PLC, 0.01*PLC, 0.1*PLC, 1.0*PLC, 10.0*PLC, and 100.0*PLC. Where, PLC means power line cycle. And the value is 20 ms for the 50 Hz line frequency operation or 16.667 ms for the 60 Hz operation.

For example, if the softkey label shows 0.001 PLC, the aperture time is set to 20 μs for the 50 Hz operation or 16.667 μs for the 60 Hz operation.

NOTE In the remote state, the instrument accepts the aperture time other than the six values

shown above. The setting value is still effective just when the instrument is returned to the local state. Then the softkey label shows the value. However, once the Coarse Res key or the Fine Res key is pressed, only the six values are available in the local state.

Figure 3-4 Image of Automatic Aperture Operation

The aperture time can be set by using the following navigation keys.

Coarse Res Coarse resolution. Increases measurement speed (decreases

aperture time).

[home] Sets the Normal auto aperture and the AUTO range.

Fine Res Fine resolution. Decreases measurement speed (increases

aperture time).

NOTE After the mode is changed from Automatic to Manual

The instrument keeps the last used aperture time. And the SPEED function key shows its value.

Also see "Aperture Time" on page 5-5.

Keysight B2980 User’s Guide, Edition 4 3-11

How to Perform Measurement



Rleak

DUT

Ileak

Idut

Rguard

Imeas= Idut

Rleak

DUT

Idut

Imeas= Idut+Ileak

Ileak

Without Guarding With Guarding

Current Measurement

Common Terminal Connection

The Common terminal is internally connected to the common of Ammeter, Analog Out, and Voltmeter. This terminal is used as the reference terminal for input/output of them.

For the measurement of the device which has a non-ground potential, the Common terminal must be connected to chassis ground by using a Banana-to-Lug cable (furnished) or equivalent. In this condition, the current/voltage measurement that refers to ground as reference is performed.

For the measurement of the device which has the ground potential, do not connect any cable between Common and chassis ground. to make the Ammeter/Voltmeter floating. This condition makes the potential difference between the input of Ammeter and ground and that may occur an error caused from the leakage current in low-current measurement. You can reduce an error by using guarding technique.

Figure 3-5 Guarding Technique

If a dielectric exists between the Input of Ammeter and the other potential, the leakage current flows in accordance with a potential difference and resistance. Guarding technique covers the wire connecting from the Input of Ammeter with a conductor (Guard) that has same potential as Input to cancel the potential difference from the surrounding dielectric so that the leakage current can be reduced. Because the Common and Input of Ammeter have almost same electric potential, connect the guard to the Common. In the case without guarding (left figure), Ileak occurs an error. In the case with guarding (right figure), Ileak does not flow through the Ammeter and does not effect the measurement. If the potential difference between both ends of Rguard is 0, no leakage current flows there.

3-12 Keysight B2980 User’s Guide, Edition 4

How to Perform Measurement

Current Measurement

WARNING If the Common terminal is not connected to chassis ground, voltage of up to ±

500 V can be applied to the Common terminal. To prevent electrical shock, do not touch any of measurement circuit at any time while a floating measurement is in progress. Also use accessories that comply with IEC 61010-2-031. All terminals and the extended conductors must be isolated by using insulation caps, sleeves, etc.

WARNING Si la borne commune n'est pas connectée à la masse, une tension de jusqu’à

±500 V peut être appliquée au terminal Commun. Afin d’éviter toute décharge électrique, ne touchez aucune mesure de circuit à tout moment lorsque la mesure de flotte est en cours. Utiliser également des accessoires qui sont conformes à la norme IEC 61010-2-031. Toutes les bornes et les conducteurs prolongés doivent être isolés en utilisant des bouchons d'isolation, des manchons, etc.

CAUTION Do not apply current to the chassis ground. Doing so will damage the instrument.

Keysight B2980 User’s Guide, Edition 4 3-13

How to Perform Measurement

Input

Guard

Common

Voltage Measurement

The B2985A/B2987A supports the voltage measurement capability shown in Tab le

3-2.

Table 3-2 Voltage Measurement Range, Value, and Resolution

Range value Measurement value Display resolution

2 V 0 ≤ |V| ≤ 2.1 V 1 μV

20 V 0 ≤ |V| ≤ 21 V 10 μV

Requirements Before turning the instrument on, connect cable, test leads, test fixture, and so on,

used for the measurement. See Figures 3-7 and 3-8 for connection examples.

The following accessories can be used.

• Triaxial cable, 200 V, 1.5 m

• Triaxial bulkhead connector, if needed

• Banana to alligator clip cable, for connecting Common to voltage under test low

• Banana to lug cable, for connecting Common to chassis ground

Instead of the triaxial cable and the triaxial bulkhead connector, Keysight N1415A Triaxial to alligator clip cable, 200 V, 1.5 m can be used.

NOTE When turning the instrument on, leave the end of the measurement path open.

Figure 3-6 Simplified Circuit Diagram of Voltmeter

NOTE Voltmeter connector’s inner shield is internally connected to Guard or Common as

shown in Figure 3-6. The internal connection must be made properly. It must be connected to Guard for the guarded voltage measurement. And it must be connected to Common for the unguarded voltage measurement. Incorrect setup causes measurement errors. See "Guarded and Unguarded Connections" on page 3-17 for more information.

3-14 Keysight B2980 User’s Guide, Edition 4

Figure 3-7 Guarded Voltage Measurement Connection

Shield

Triaxial cable

Triaxial bulkhead connector

Chassis ground

Guard shield

Banana-to-alligator clip cable

Common is connected to chassis ground by using Banana-to-lug cable.

Safety Earth Ground

Common Chassis

Ground

Chassis ground

Triaxial cable

Common is connected to chassis ground by using Banana-to-lug cable.

Triaxial bulkhead connector

Common

Chassis Ground

How to Perform Measurement

Voltage Measurement

Figure 3-8 Unguarded Voltage Measurement Connection

Keysight B2980 User’s Guide, Edition 4 3-15

How to Perform Measurement Voltage Measurement

Instead of connecting the inner shield (Common) of Voltmeter, a banana to alligator clip cable can be used for connecting Common to low terminal of voltage under test.

NOTE For floating voltmeter, do not connect any cable between Common and chassis

ground. See "Common Terminal Connection" on page 3-12 for more information.

Procedure You can perform the voltage measurement as follows.

View

Step 1. Press the

key and the Meter View function key to display the Meter view.

Step 2. Press the

VOLTS (V)

assist key to set the voltage measurement mode.

Step 3. Use the navigation keys or the RANGE function key to set the measurement range

you want to use. See "Measure Volts" on page 3-18 for more information.

Step 4. Use the navigation keys or the SPEED function key to set the measurement speed

(aperture time) you desire. See "Aperture Time" on page 3-18 for more information.

Filter

Step 5. Press the

key to open the Measure Filter dialog box. And set the measurement

filter on the dialog box. See "Filter" on page 3-18 for more information.

Step 6. Connect measurement voltage (DUT).

See Figure 3-7 for the guarded voltage measurement.

See Figure 3-8 for the unguarded voltage measurement.

Step 7. Start measurement as follows.

•Press the

Single

key to start a single (one shot) measurement. Voltage

measurement is performed once.

•Press the

Run/Stop

key to start a repeat (continuous) measurement. Voltage

measurement is performed repeatedly. Minimum measurement interval is 10 ms.

For more precise measurement, use the zero correction or offset cancel. See "Null,

Offset Cancel" on page 5-9.

3-16 Keysight B2980 User’s Guide, Edition 4

How to Perform Measurement

Buffer amplifier

Guard

Voltage

Common

Guard

Input

Voltage under test

Common

Voltage Measurement

Setup Parameters

This section briefly describes how to set key parameters effective for accurate and reliable voltage measurement.

Guarded and Unguarded Connections

Voltmeter input is a triaxial connector. The center conductor and the outer shield are connected to the voltmeter input and the chassis ground respectively. And the inner shield must be connected to Guard for the guarded voltage measurement or Common for the unguarded voltage measurement.

To make this internal connection, open the Input Connection dialog box by pressing the System Menu > Config > Measure > Connection function keys and set the Voltage Measure Inner Shield field properly. The following values are available.

GUARD Inner shield is connected to Guard. For the guarded

voltage measurement connection for performing accurate measurement. Guarded voltmeter indicator turns on.

CCOM Inner shield is connected to Common. For the unguarded

voltage measurement connection which makes connection easy. Guarded voltmeter indicator turns off.

To set the value, use the assist key and/or the rotary knob, and press OK to apply the setting and close the dialog box.

Figure 3-9 Differences between GUARD and CCOM

CCOM

Keysight B2980 User’s Guide, Edition 4 3-17

Input

under test

How to Perform Measurement Voltage Measurement

NOTE The guarded voltage measurement is effective when the guarded voltmeter indicator

turns on. In this setup, the same potential voltage appears at the center conductor (Input) and the inner shield through a buffer amplifier (×1) as shown in Figure 3-9. It is effective for performing voltage measurement accurately.

See "Guarding" on page 3-19 for more information.

Measure Volts

Press the RANGE function key to change the ranging mode, auto or fixed. Where, The softkey label shows the present measurement range setting, AUTO or fixed range value.

Measurement range can be set by using the following navigation keys.

Range + Sets the fixed range mode and changes the range up.

[home] Sets the AUTO range and the Normal auto aperture.

Range - Sets the fixed range mode and changes the range down.

See "Measurement Range" on page 3-9 for more information.

Aperture Time

Press the SPEED function key to change the aperture mode, auto or manual. Where, the softkey label shows the present aperture time setting.

Aperture time can be set by using the following navigation keys.

Coarse Res Increases measurement speed (decreases aperture time).

[home] Sets the Normal auto aperture and the AUTO range.

Fine Res Decreases measurement speed (increases aperture time).

See "Aperture Time" on page 3-10 for more information.

Filter

Measurement filter function can be enabled/disabled by using the Filter key.

If the FILT indicator is turned on, pressing the Filter key disables the function and turns the FILT indicator off.

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How to Perform Measurement

Voltage Measurement

Guarding

Guarding is effective when a voltage source under test has the high output resistance.

Figure 3-10 shows the theory of guarding. If the guard is not used, the inner shield

of triaxial cable has Common potential and the same voltage as the measured voltage is applied between center and inner conductors. The insulation resistance of cable is a finite value, so the voltage divided by the ratio of the output resistance of voltage source under test to the insulation resistance of cable is measured. If the output resistance is too large, an error that cannot be ignored may occur in the measured data.

Also, there is an electrostatic capacitance between the inner shield and the center conductor of triaxial cable, so the measured voltage is settled according to the time constant determined by the electrostatic capacitance and the output resistance. If the output resistance is too large, the settling may require the longer time.

If the guard is used, the buffer amplifier keeps the potential of the inner shield at the same potential as the center conductor of triaxial cable. So, the voltage is not applied between both end of insulation resistance and capacitance of cable, and these affect can be ignored. Therefore, you can make the precise and fast measurement even for the voltage source under test that has the large output resistance.

Keysight B2980 User’s Guide, Edition 4 3-19

How to Perform Measurement

Buffer amplifier

Guard

Voltage under test

Common

Output resistance

Insulation resistance

Voltage under test

Common

Output resistance

Cable capacitance

Voltage Measurement

Figure 3-10 Guarding

CAUTION Never connect the Guard terminal to any output, including circuit common, chassis

ground, or any other guard terminal. Doing so will damage the instrument.

3-20 Keysight B2980 User’s Guide, Edition 4

How to Perform Measurement

Resistance Measurement

The B2985A/B2987A supports the resistance measurement up to 1000 PΩ (reference value).

Requirements Before turning the instrument on, connect cable, test leads, test fixture, and so on,

used for the measurement. See Figures 3-12 to 3-15 for connection examples.

The following accessories can be used.

• Triaxial cable, 200 V, 1.5 m

• Triaxial bulkhead connector, if needed

• High voltage test lead, 1000 V, 1.2 m, for High terminal

• Banana to lug cable, for connecting Common to chassis ground

• Banana to banana cable, for connecting Voltage Source High to Common

• Keysight N1414A High resistance measurement universal adapter

Instead of the triaxial cable and the triaxial bulkhead connector, Keysight N1415A Triaxial to alligator clip cable, 200 V, 1.5 m can be used.

NOTE When turning the instrument on, leave the end of the measurement path open.

The following accessories are also available for high resistance measurement.

• Keysight 16008B Resistivity Cell

• Keysight 16117B Low Noise Test Lead, clip end

• Keysight 16117C Low Noise Test Lead, connector end, with bulkhead connectors

• Keysight 16339A Component Test Fixture

To use the accessory, Keysight N1413A adapter is required. See Figure 3-11 for connecting the accessory. Attach and connect the N1413A to the instrument, and connect the accessory to the adapter which provides the connectors suitable for the accessory. Always set the voltage source Low terminal state to FLOATING.

All accessories can be used for the floating device measurement with the control switch PULL position of the N1413A. Note that the 16117B/C can also be used for the grounded device measurement with the PUSH position.

Keysight B2980 User’s Guide, Edition 4 3-21

How to Perform Measurement

N1413A adapter

Control switch: PULL position for Floating device PUSH position for Grounded device

To Interlock

PULL PULL/PUSH PULL

16008B Resistivity Cell 16117B/C Low Noise Test Lead 16339A Component Test Fixture

HV coaxial

VM = 0.01*V

Triaxial

Switch PULL position for Floating device Switch PUSH position for Grounded device

100:1

Common

DUT

Resistance Measurement

Figure 3-11 Connecting Accessory for High Resistance Measurement using N1413A

HV coaxial

DUT

For more information about using the accessories, see Operation Manual of each accessory.

NOTE To apply a voltage over ±21V, the Interlock terminal must be connected to an

interlock circuit. See "Interlock" on page 3-31.

WARNING To attach the N1413A/N1414A adapter, push it to the B2985A/B2987A

connectors. Push the adapter in firmly until it locks in-place (< 1 mm spacing)

WARNING Pour fixer l'adaptateur N1413A/N1414A, enfoncez-le dans les connecteurs

B2985A/B2987A. Poussez l'adaptateur fermement jusqu'à ce qu'il se verrouille en position (espace < 1 mm).

NOTE For using the N1413A/N1414A adapter, set the Low Terminal State to FLOATING.

Voltage Source Low is connected to the chassis ground through the adapter.

NOTE If you use the N1413A/N1414A adapter, you do not need to care about setting of the

Voltmeter connector’s inner shield. It is opened at the adapter’s input.

3-22 Keysight B2980 User’s Guide, Edition 4

Triaxial

Voltage Source Low Terminal State: FLOATING

Used Agilent Agilent Used B2981A Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1Introduction

Keysight B2980 Series

Front View

To Use the Field Pointer

To Change the Setting in the Field

To Change the Settings on a Dialog Box

Summary of Front Panel Operation

Rear View

Software and Drivers

Productivity Tools

Accessories

Furnished Accessories

Available Accessories

Options

2 Installation

Inspecting the Shipment

Checking the Operation of Keysight B2980

Checking for Errors

Installing Keysight B2980

Safety Considerations

Environment

Connecting the Power Cord

Setting the Power Line Frequency

Setting Date and Time

Bench Installation

Rack Installation

Maintenance

Cleaning

Self-test

Self-calibration

Calibration

Installing the Interlock Circuit

Connecting to the Interfaces

GPIB/USB Interfaces

LAN Interface

Communicating Over the LAN

Using the Graphical Web Interface

Using Telnet

Using Sockets

Using Digital I/O and Trigger In/Out

3 How to Perform Measurement

Current Measurement

Setup Parameters

Measurement Range

Aperture Time

Common Terminal Connection

Voltage Measurement

Setup Parameters

Guarding

Resistance Measurement