Agilent 4349B Operations Guide

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HP 4349B 4-Channel High Resistance Meter

Operation Manual

SERIAL NUMBERS

This manual applies directly to instruments with serial

number prex JP1KD, or rmware revision 1.04.

For additional important information about serial

numbers, read \Serial Number" in Appendix A.

HP Part No. 04349-90040

Printed in Japan August 1998

Fourth Edition

Notice

The information contained in this document is subject to change without notice.

This document contains proprietary information that is protected by copyright. All rights are

reserved. No part of this document may be photocopied, reproduced, or translated to another

language without the prior written consent of the Hewlett-Packard Company.

Hewlett-Packard Japan, LTD.

Kobe Instrument Division

1-3-2, Murotani, Nishi-Ku, Kobe-shi,

Hyogo, 651-2241 Japan



1996,1998 Hewlett-Packard Japan, Ltd.

HP 4349B

Manual Printing History

March 1996

December 1996

June 1998

August 1998

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First Edition

Second Edition

Third Edition

Fourth Edition

iii

HP 4349B

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 specic

WARNINGS

elsewhere in this manual may impair the protection provided by the equipment.

In addition it violates safety standards of design, manufacture, and intended use of the

instrument.

The Hewlett-Packard Company assumes no liability for the customer's failure to comply with

these requirements.

Note

HP 4349B comply with INSTALLATION CATEGORY II and POLLUTION

DEGREE 2 in IEC1010-1. HP 4349B are INDOOR USE product.

Note

LEDs in HP 4349B are Class 1 in accordance with IEC825-1.

CLASS 1 LED PRODUCT

Ground The Instrument

To avoid electric shock hazard, the instrument chassis and cabinet must be connected to a

safety earth ground by the supplied power cable with earth blade

DO NOT Operate In An Explosive Atmosphere

Do not operate the instrument in the presence of ammable gasses or fumes

. Operation of any

electrical instrument in such an environment constitutes a denite safety hazard.

Keep Away From Live Circuits

Operating personnel must not remove instrument covers. Component replacement and internal

adjustments must be made by qualied maintenance personnel. Do not replace components

with the power cable connected. Under certain conditions, dangerous voltages may exist even

with the power cable removed. To avoid injuries, always disconnect power and discharge

circuits before touching them.

DO NOT Service Or Adjust Alone

Do not attempt internal service or adjustment unless another person, capable of rendering rst

aid and resuscitation, is present.

DO NOT Substitute Parts Or Modify Instrument

Because of the danger of introducing additional hazards, do not install substitute parts

or perform unauthorized modications to the instrument. Return the instrument to a

Hewlett-Packard Sales and Service Oce for service and repair to ensure that safety features

are maintained.

HP 4349B

Dangerous Procedure Warnings

Warnings

, such as the example below, precede potentially dangerous procedures throughout

this manual. Instructions contained in the warnings must be followed.

Warning

Dangerous voltages, capable of causing death, are present in this

instrument. Use extreme caution when handling, testing, and adjusting

this instrument.

HP 4349B

Certication

Hewlett-Packard Company certies that this product met its published specications at the

time of shipment from the factory. Hewlett-Packard further certies that its calibration

measurements are traceable to the United States National Institute of Standards and

Technology, to the extent allowed by the Institution's calibration facility, or to the calibration

facilities of other International Standards Organization members.

Warranty

This Hewlett-Packard instrument product is warranted against defects in material and

workmanship for a period of one year from the date of shipment, except that in the case of

certain components listed in

General Information

of this manual, the warranty shall be for the

specied period. During the warranty period, Hewlett-Packard Company will, at its option,

either repair or replace products that prove to be defective.

For warranty service or repair, this product must be returned to a service facility designated by

HP. Buyer shall prepay shipping charges to HP and HP shall pay shipping charges to return the

product to Buyer. However, Buyer shall pay all shipping charges, duties, and taxes for products

returned to HP from another country.

HP warrants that its software and rmware designated by HP for use with an instrument will

execute its programming instruction when property installed on that instrument. HP does not

warrant that the operation of the instrument, or software

, or rmware will be uninterrupted or

error free.

Limitation Of Warranty

The foregoing warranty shall not apply to defects resulting from improper or inadequate

maintenance by Buyer, Buyer-supplied software or interfacing, unauthorized modication or

misuse, operation outside the environmental specications for the product, or improper site

preparation or maintenance.

No other warranty is expressed or implied. HP specically disclaims the implied warranties

of merchantability and tness for a particular purpose.

HP 4349B

Exclusive Remedies

The remedies provided herein are buyer's sole and exclusive remedies. HP shall not be liable

for any direct, indirect, special, incidental, or consequential damages, whether based on

contract, tort, or any other legal theory.

Assistance

Product maintenance agreements and other customer assistance agreements are available for

Hewlett-Packard products.

For any assistance, contact your nearest Hewlett-Packard Sales and Service Oce.Addresses

are provided at the back of this manual.

vii

HP 4349B

Safety Symbols

General denitions of safety symbols used on equipment or in manuals are listed below.

Instruction manual symbol: the product is marked with this symbol when it is

necessary for the user to refer to the instruction manual.

Alternating current.

Direct current.

On (Supply).

O (Supply).

Frame or chassis terminal

This

Warning

condition or the like, which, if not correctly performed or adhered to, could

result in injury or death to personnel.

sign denotes a hazard. It calls attention to a procedure, practice,

This

Caution

condition or the like, which, if not correctly performed or adhered to

result in damage to or destruction of part or all of the product.

Note

practice, condition or the like, which is essential to highlight.

denotes important information. It calls attention to a procedure

sign denotes a hazard. It calls attention to a procedure

, practice,

, could

viii

HP 4349B

Herstellerbescheinigung

GERXSCHEMISSION

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

HP 4349B

Contents of this Manual

Chapter 1, Getting Started

Provides the product overview and basic measurement procedure. First time users of the

HP 4349B should read this chapter rst.

Chapter 2, Operating the HP 4349B

Shows how to operate the HP 4349B from its front panel. Refer to this chapter when you wish

to learn about operations using the front panel keys.

Chapter 3, Function Reference

Describes all functions of this instrument. Refer to this chapter when you wish to learn about

the functions of the front and rear panel keys and terminals.

Chapter 4, Remote Operation

Shows how to remotely operate the HP 4349B. Refer to this chapter when you wish to learn

about the procedures for remotely operating the HP 4349B via the HP-IB

Chapter 5, HP-IB Reference

Contains complete information on remotely operating the HP 4349B via the HP-IB

this chapter when you wish to learn about the HP-IB commands

trigger system, and data transmission format.

Chapter 6, Application Measurement

Provides a measurement example using the HP 4349B.

Chapter 7, Measurement Basics

Provides information for eective operations.

Chapter 8, General Information

Provides specications, reference data, and other general information.

Chapter 9, Maintenance

Describes how to verify the specications.

, status reporting mechanism,

. Refer to

HP 4349B

Appendix A, Manual Changes

Contains information on using the HP 4349Bs which were manufactured before this manual

was printed.

Appendix B, Handler Interface Installation

Contains information which is required for using the handler interface. Before using the

handler interface, read this appendix and set the handler interface input/output signal.

Appendix C, Overload/No-Contact Operations

The summary of operations when the HP 4349B detects OVLD (Overload), or N.C. (No-Contact).

1. Getting Started

Introduction .. ...... ...... ...... ...... .... 1-1

Overview .... ...... ...... ...... ...... ..... . 1-2

Features ...... ...... ...... ...... ...... ... 1-2

Accessories Available . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Options Available ............................. 1-3

Front Panel .. ...... ...... ...... ...... ...... 1-4

Display .................................. 1-6

Rear Panel ................................ 1-7

Initial Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Ventilation Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . .

Instruction for Cleaning ...... ...... ...... ...... ...

Power Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preparation for Use .............................

Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-8

1-9

1-11

Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Turning ON the HP 4349B .........................

Using Front Panel Keys ...........................

Direct Execution Keys . . . . . . . . . . . . . . . . . . . . . . . . . . .

Toggle Keys .... ...... ...... ...... ...... ....

Selection Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Value Setup Keys .............................

Numeric Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maximum and Minimum Keys ......................

Left/Down and Right/Up Arrow Keys . . . . . . . . . . . . . . . . . . . 1-15

Back Space Key ...... ...... ...... ...... ..... 1-15

If you have any problems .......................... 1-16

2. Operating the HP 4349B

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

External Voltage Source ...........................

Test Leads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Specications .......... ...... ...... ...... ...

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Measurement Conguration ........ ...... ...... .....

To Reset the HP 4349B . . . . . . . . . . . . . . . . . . . . . . . . . . .

ToPerform the OPEN Correction Function ................. 2-5

To Select a Measurement Parameter . . . . . . . . . . . . . . . . . . . . . 2-5

To Select the Channel ...........................

To Enter the Voltage Value . . . . . . . . . . . . . . . . . . . . . . . . .

To Select the Measurement Range . . . . . . . . . . . . . . . . . . . . . .

To Select the Measurement Time Mode ...................

To Set the Averaging Rate .........................

1-11

1-12

1-13

1-14

1-15

2-1

2-2

2-3

2-5

2-6

2-7

Contents-1

To Set the Trigger Delay Time ....................... 2-7

To Set the Contact Check . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Reading the Limit Data of Contact Check Function ............ 2-8

Reading the Capacitance Data at DUT Measurement . . . . . . . . . . . . 2-10

To Set the Beeper Mode .......................... 2-10

Saving and Recalling Instrument Settings .................. 2-11

Making a Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Triggering a Measurement .. ...... ...... ...... ..... 2-12

To Use the Comparator Function ...................... 2-12

To Select the Display Mode and Display Digits . . . . . . . . . . . . . . . . 2-14

To Change the Measurement Settings Display ................ 2-14

Locking Out the Front Panel Keys .... ...... ..... ...... 2-15

Selecting Local Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Setting the HP-IB Address ......................... 2-15

Printing Measurement Data . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

ToTest the HP 4349B ............................ 2-16

Performing a Self-Test ........................... 2-16

Testing the Front Panel Keys' Functionality ...... ..... ...... 2-16

If Your HP 4349B Has a Problem ....................... 2-17

If the Display is Blank and the HP 4349B Appears Dead ........... 2-17

If an Error Message is Displayed ......................

If the HP 4349B does not Accept Any Key Input . . . . . . . . . . . . . . .

If the Resistance Value Is Always 0  ....................

3. Function Reference

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Front Panel .................................

Display ..................................

LINE Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chassis Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-17

3-1

3-2

3-3

INPUT (Ch1, Ch2, Ch3, and Ch4) Terminals . . . . . . . . . . . . . . .

Channel key

.............................

Voltage Entry Key ...... ...... ...... ..... ...

Measurement Time Key

....................... 3-4

3-3

3-4

Average Key ...... ...... ...... ...... .. 3-4

Measurement Parameter Key

...... ...... ...... ... 3-4

Show Setting Key .......................... 3-4

Display Mode Key

.......................

Auto/Hold Range Key ........................

Range Setup Key ........................

Comparator Limit Key ......................

Trigger Key ...... ...... ..... ...... ......

Local Key

Address Key

.............................. 3-6

...... ...... ...... ...... .. 3-6

Trigger Mode Key ..........................

Delay Key

...........................

3-5

3-6

3-7

Contents-2

Save Key ............................ 3-7

Recall Key

...... ...... ...... ...... ...... 3-7

Right/Up Arrow Key and Left/Down Arrow Key ...... .... 3-7

0, . . . , 9, .(point),0(minus) Key ... ...... .... 3-7

BLUE Shift Key ........ ...... ...... ...... . 3-7

Exponential Key

........................... 3-8

Back Space Key ........ ...... ...... ...... . 3-8

Enter Key .............................. 3-8

Minimum Key

.......................... 3-8

Maximum Key ......................... 3-8

Comparator Key ......................... 3-8

Contact Check Key ...... ...... ...... ..... 3-9

Open Key .. ...... ...... ...... ..... ... 3-9

Key Lock Key ..........................

Reset Key ............................

Conguration Key ........................

Rear Panel .................................

External Trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-9

3-10

3-11

3-12

LINE Fuse Holder .... ...... ...... ..... .....

LINE Voltage Selector ...........................

Serial Number Plate .. ...... ...... ...... ...... ..

Power Cord Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power Cord ...............................

Handler Interface .............................

Specications ..............................

HP-IB Interface .......... ...... ...... ...... ..

Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Overall Measurement Theory . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Overall Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

4. Remote Operation

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Getting Started ...... ...... ...... ...... ...... .

Input/Output Statements . . . . . . . . . . . . . . . . . . . . . . . . . .

Reading the HP-IB Address . . . . . . . . . . . . . . . . . . . . . . . . .

Sending a Remote Command .... ...... ...... ...... ..

Returning to Local Mode . . . . . . . . . . . . . . . . . . . . . . . . . .

Query Commands .............................

Getting Data from the HP 4349B ........ ...... ...... ..

To Control the HP 4349B from an External Computer ............. 4-4

To Set Up the HP 4349B ........................... 4-5

To Reset the HP 4349B . . . . . . . . . . . . . . . . . . . . . . . . . . .

To Set the LINE Frequency . . . . . . . . . . . . . . . . . . . . . . . . .

ToPerform the OPEN Correction ......................

To Select the Measurement Parameter . . . . . . . . . . . . . . . . . . . .

To Enter Voltage Value . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-13

3-14

3-18

4-1

4-2

4-3

4-5

4-6

Contents-3

To Select the Measurement Range . . . . . . . . . . . . . . . . . . . . . . 4-6

To Set the Measurement Time Mode . . . . . . . . . . . . . . . . . . . . . 4-6

To Set the Averaging rate . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

To Set the Trigger Delay time . . . . . . . . . . . . . . . . . . . . . . . . 4-7

ToPerform the Contact Check ....................... 4-7

To Set the Beeper Mode .......................... 4-7

To Lock Out the Front Panel Keys ...... ...... ..... .... 4-7

To Use the Comparator Function ...................... 4-8

ToWait Until Previously Sent Commands are Completed ........... 4-8

To Get the Current Instrument Settings ................... 4-9

To Save and Recall Instrument Settings .... ...... ...... ... 4-9

To Trigger a Measurement .......................... 4-10

To Retrieve Data Eciently .. ...... ...... ...... ..... 4-12

To Transfer Data Using the Real Data Format .. ...... ...... .. 4-12

To Use Data Buer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

Other Features ............................... 4-13

To test the HP 4349B . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

To Report the Instrument's Status . . . . . . . . . . . . . . . . . . . . . . 4-13

If You Have a Problem . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

If the HP 4349B Hangs Up When You Send the

ABORt

Command ....... 4-15

5. HP-IB Reference

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

HP-IB Commands ..............................

Common Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Subsystem Commands ...........................

Subsystem Command Tree ..........................

Program Message Syntax . . . . . . . . . . . . . . . . . . . . . . . . . . .

Case .. ...... ...... ...... ...... ..... ....

Program Message Terminator . . . . . . . . . . . . . . . . . . . . . . . .

Subsystem Command Syntax . . . . . . . . . . . . . . . . . . . . . . . .

Common Command Syntax . . . . . . . . . . . . . . . . . . . . . . . . .

Parameters ................................

Parameter Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Sux . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Multiple Messages ............................. 5-7

Query and Response Message Syntax ...... ...... ..... ... 5-7

Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Notations ................................. 5-8

ABORt Command .............................. 5-9

:ABORt ...... ...... ...... ...... ...... ....

CALCulate Subsystem ............................

:CALCulatef1j2j3j4g:LIMit:BEEPer:CONDitionfFAILjPASSg........ 5-10

:CALCulatef1j2j3j4g:LIMit:BEEPer[:STATe]fONjOFFj1j0g........ 5-10

:CALCulatef1j2j3j4g:LIMit:CLEar . . . . . . . . . . . . . . . . . . . . . .

:CALCulatef1j2j3j4g:LIMit:FAIL? ......................

:CALCulatef1j2j3j4g:LIMit:LOWer[:DATA]<numeric value>...... ... 5-11

:CALCulatef1j2j3j4g:LIMit:LOWer:STATefONjOFFj1j0g...... ... 5-11

:CALCulatef1j2j3j4g:LIMit:STATefONjOFFj1j0g...... ...... . 5-11

:CALCulatef1j2j3j4g:LIMit:UPPer[:DAT

:CALCulatef1j2j3j4g:LIMit:UPPer:STATefONjOFFj1j0

A]<numeric value>...... ... 5-12

...... ...

CALCulatef1j2j3j4g:PATH?.........................

DATA Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

:DATA[:DATA]? DBUF ...........................

:DATA:FEED DBUF,<data handle>.....................

5-1

5-4

5-5

5-6

5-7

5-9

5-10

5-11

5-12

5-13

5-14

Contents-4

:DATA:FEED:CONTrol DBUF,fALWaysjNEVerg................ 5-14

:DATA:POINts DBUF,<numeric value>................... 5-14

DISPlay Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

:DISPlay:ENABlefONjOFFj1j0g...... ...... ...... .. 5-15

:DISPlay:WINDowf1j2j3j4g[:STATe]fONjOFFj1j0g............ 5-15

:DISPlay:WINDowf1j2j3j4g:TEXT1:PAGEf1j2g.............. 5-15

:DISPlay:WINDowf1j2j3j4g:TEXT1:DIGitf3j4j5g............. 5-16

:DISPlay:WINDowf1j2j3j4g:TEXT2:PAGEf1j2j3g...... ...... . 5-16

FETCh? Query ........ ...... ...... ..... ...... 5-17

:FETCh? ................................. 5-17

FORMat Subsystem ............................. 5-18

:FORMat[:DATA]fASCiijREAL[,64]

...... ..... ...... .. 5-18

INITiate Subsystem ........ ...... ..... ...... .... 5-19

:INITiate[:IMMediate] ........................... 5-19

:INITiate:CONTinuousfONjOFFj1j0g.................. 5-19

SENSe Subsystem .............................. 5-20

[:SENSe]:AVERage:COUNt<numeric value>...... ...... .... 5-20

[:SENSe]:AVERage[:STATe]fONjOFFj1j0g................ 5-20

[:SENSe]:CORRection:COLLect[:ACQuire] OFFSet .......... .... 5-20

[:SENSe]:CORRection:DATAf1j2j3j4g? OFFSet .... ...... ...... 5-21

[:SENSe]:CORRection:DATAf1j2j3j4g? SCAPacitance .............

[:SENSe]:CORRection[:STATe]fONjOFFj1j0g..............

[:SENSe]:CONTact:DATAf1j2j3j4g?......................

[:SENSe]:CONTact:LIMitf1j2j3j4g?......................

[:SENSe]:CONTact:OFFSetf1j2j3j4g<

numeric

value>............

[:SENSe]:CONTact:VERifyfONjOFFj1j0g................

[:SENSe]:CURRent:APERture<numeric value>[MSjS]............

[:SENSe]:CURRent:RANGef1j2j3j4g:AUTOfONjOFFj1j0

[:SENSe]:CURRent:RANGef1j2j3j4g[:UPPer]<numeric

...... .. 5-22

value>[PAjNAjUAjMAjA] 5-23

[:SENSe]:FUNCtion<sensor function>...... ...... ...... .

SOURce Subsystem .............................

:SOURce:VOLTagef1j2j3j4g[:LEVel][:IMMediate][:AMPLitude]<numeric

value

STATus Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

:STATus:OPERation[:EVENt]? . . . . . . . . . . . . . . . . . . . . . . . .

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

5-21

5-22

5-23

5-24

5-25

:STATus:OPERation:ENABle<numeric value>...... ...... ... 5-25

:STATus:PRESet .. ...... ...... ...... ...... .... 5-26

:STATus:QUEStionable[:EVENt]? ...................... 5-26

:STATus:QUEStionable:CONDition? ..................... 5-26

:STATus:QUEStionable:ENABle<numeric value>...... ...... .. 5-26

SYSTem Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

:SYSTem:BEEPer:STATefONjOFFj1j0g.................

:SYSTem:ERRor? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

:SYSTem:KLOCkfONjOFFj1j0

....................

:SYSTem:LFRequency<numeric value>..................

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

...... ...... ...... ...

:SYSTem:VERSion? . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-27

5-28

TRIGger Subsystem ........ ...... ..... ...... .... 5-29

:TRIGger:DELay<numeric value>[MSjS].................. 5-29

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

:TRIGger:SOURcefBUSjEXTernaljINTernaljMANualg..........

Common Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CLS ...... ...... ...... ...... ...... .....

ESE<numeric value>...... ...... ...... ...... ..

5-29

5-30

Contents-5

ESE? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30

ESR? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30

IDN? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30

LRN? .................................. 5-30

OPC ................................... 5-30

OPC? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31

OPT? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31

RCL<numeric value>...... ...... ...... ..... ... 5-31

RST ...... ...... ...... ..... ...... ...... 5-31

SAV<numeric value>.......................... 5-31

SRE<numeric value>.......................... 5-31

SRE? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31

STB? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-32

TRG ................................... 5-32

TST? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-32

WAI ........ ...... ...... ..... ...... .... 5-32

Status Reporting Structure . . . . . . . . . . . . . . . . . . . . . . . . . . 5-33

Service Request (SRQ) ........................... 5-33

Status Byte Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-34

Standard Event Status Register . . . . . . . . . . . . . . . . . . . . . . . 5-35

Standard Operation Status Group . . . . . . . . . . . . . . . . . . . . . .

Operation Status Register .........................

Questionable Status Register ........................

Trigger System ........ ...... ...... ...... .....

HP 4349B Trigger System Conguration . . . . . . . . . . . . . . . . . . .

Idle State .... ...... ...... ...... ...... ....

Initiate State ..............................

Event Detection State ..........................

Sequence Operation State ........................

Data Transfer Format ...... ...... ...... ...... ....

ASCii . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

REAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-36

5-37

5-38

5-39

5-40

5-41

6. Application Measurement

Introduction ..............................

High Throughput Measurement . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Multi Test Voltages Measurement ....................... 6-5

Note on Measuring Insulation Resistance of Capacitors . . . . . . . . . . . . . 6-8

The External DC Voltage Source .... ...... ...... ...... 6-8

How to Select the Optimum Measurement Range . . . . . . . . . . . . . .

Additional Error Due to Voltage Source Noise ................

How to Reduce the Measurement Error . . . . . . . . . . . . . . . . . . .

Precharge Time and Wait Time .... ...... ...... ...... .

7. Measurement Basics

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Insulation Resistance Measurement . . . . . . . . . . . . . . . . . . . . . .

Residual Charge Eect . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Absorption Phenomena .......................... 7-1

Voltage Coecient and Temperature Coecient ...............

Shielding .. ...... ...... ...... ...... ...... .

Contents-6

6-1

6-8

6-10

6-11

6-12

7-1

7-2

8. General Information

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Specications ................................ 8-2

Measurement Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

Measurement Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

Measurement Range ............................ 8-3

Measurement Accuracy ...... ...... ...... ...... .. 8-3

Measurement Support Functions ...................... 8-5

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6

Supplemental Performance Characteristics ...... ...... ...... 8-7

Typical Measurement Accuracy . . . . . . . . . . . . . . . . . . . . . . . 8-7

Measurable Capacitance Range . . . . . . . . . . . . . . . . . . . . . . . 8-8

Additional Error Due To the Voltage Source Noise .............. 8-9

Additional Error Reduction by Connecting a Series Resistor . . . . . . . . . . 8-12

Measurement Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15

Consumption Memory Duration . . . . . . . . . . . . . . . . . . . . . . . 8-15

Contact Check Eective Range . . . . . . . . . . . . . . . . . . . . . . . 8-16

9. Maintenance

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

Test Equipment ...............................

Performance Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Test Equipment ...... ...... ...... ...... ......

Calculation Sheet .... ...... ...... ...... ...... .

Performance Test Record . . . . . . . . . . . . . . . . . . . . . . . . . .

Calibration Cycle .... ...... ...... ...... ...... .

Ammeter Oset Voltage and Input Resistance Test......... .....

Specications ..............................

Test Equipment .............................

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Ammeter Oset Voltage Test ......................

Ammeter Input Resistance Test.....................

Current Measurement Accuracy Test .... ...... ...... ....

Specication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Test Equipment ............................. 9-6

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6

Resistance Measurement Accuracy Test .... ...... ...... ... 9-9

Specication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-9

Test Equipment ............................. 9-9

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Calculation Sheet .... ...... ...... ...... ...... .

Ammeter Input Resistance Test (Channel 1) ...... ...... ....

Ammeter Input Resistance Test (Channel 2) ...... ...... .... 9-12

Ammeter Input Resistance Test (Channel 3) ...... ...... .... 9-12

Ammeter Input Resistance Test (Channel 4) ...... ...... .... 9-12

RC Box Calibration Values .. ...... ...... ...... ....

Current Measurement Accuracy Test (Channel 1) . . . . . . . . . . . . . .

Current Measurement Accuracy Test (Channel 2) . . . . . . . . . . . . . . 9-13

Current Measurement Accuracy Test (Channel 3) . . . . . . . . . . . . . . 9-14

Current Measurement Accuracy Test (Channel 4) . . . . . . . . . . . . . .

Resistance Measurement Accuracy Test (Channel 1) ............

Resistance Measurement Accuracy Test (Channel 2) ............

Resistance Measurement Accuracy Test (Channel 3) ............

Resistance Measurement Accuracy Test (Channel 4) ............

9-1

9-2

9-3

9-4

9-6

9-9

9-12

9-13

9-14

9-15

9-16

Contents-7

Performance Test Record . . . . . . . . . . . . . . . . . . . . . . . . . . 9-17

Ammeter Oset Voltage and Input Resistance Test (Channel 1) ....... 9-18

Current Measurement Accuracy Test (Channel 1) . . . . . . . . . . . . . . 9-18

Resistance Measurement Accuracy Test (Channel 1) ............ 9-18

Ammeter Oset Voltage and Input Resistance Test (Channel 2) ....... 9-19

Current Measurement Accuracy Test (Channel 2) . . . . . . . . . . . . . . 9-19

Resistance Measurement Accuracy Test (Channel 2) ............ 9-19

Ammeter Oset Voltage and Input Resistance Test (Channel 3) ....... 9-20

Current Measurement Accuracy Test (Channel 3) . . . . . . . . . . . . . . 9-20

Resistance Measurement Accuracy Test (Channel 3) ............ 9-20

Ammeter Oset Voltage and Input Resistance Test (Channel 4) ....... 9-21

Current Measurement Accuracy Test (Channel 4) . . . . . . . . . . . . . . 9-21

Resistance Measurement Accuracy Test (Channel 4) ............ 9-21

Functional Test ...... ...... ...... ...... ...... . 9-22

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-22

Test Equipment .............................. 9-22

Handler Interface Functional Test...................... 9-23

Test Equipment ............................. 9-23

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-23

Initial Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-23

Key Lock Function Test ........................

External Trigger Function Test .....................

Handler Interface Output Test .... ...... ...... .....

Contact Check Functional Test .. ...... ...... ...... ...

Test Equipment .............................

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-23

9-24

9-25

A. Manual Changes

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Manual Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Change 1 ........ ...... ...... ...... ...... ..

Change 2 ........ ...... ...... ...... ...... ..

B. Handler Interface Installation

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Output Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Input Signals ............................... B-3

Setting Up the Handler Interface Board . . . . . . . . . . . . . . . . . . . . B-5

Tools and Fasteners .............................

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C. Overload/No-Contact Operations

Messages

Instrument Errors .... ...... ...... ...... ...... ..

HP-IB Errors ................................

Messages-2

Messages-3

Index

A-1

A-2

A-3

A-4

B-5

Contents-8

Figures

1-1. Power Cable Supplied ........................... 1-10

2-1. HP 16117E Test Lead ........................... 2-2

2-2. Typical Measurement System . . . . . . . . . . . . . . . . . . . . . . . . 2-3

3-1. Front Panel .... ...... ...... ...... ...... .... 3-2

3-2. Rear Panel ................................ 3-12

3-3. Required External Trigger Pulse Specication ...... ...... .... 3-12

3-4. Pin Assignment For Handler Interface Connector ...... ...... .. 3-14

3-5. Timing Diagram .............................. 3-17

3-6. Simplied Model of the HP 4349B . . . . . . . . . . . . . . . . . . . . . . 3-19

3-7. HP 4349A Overall Block Diagram . . . . . . . . . . . . . . . . . . . . . . 3-20

4-1. Simple Resistance Measurement Program Example . . . . . . . . . . . . . . 4-4

5-1. Proper Use of the Colon and Semicolon . . . . . . . . . . . . . . . . . . .

5-2. Status Reporting Structure . . . . . . . . . . . . . . . . . . . . . . . . .

5-3. Status byte Register ............................

5-4. Standard Event Status Register . . . . . . . . . . . . . . . . . . . . . . .

5-5. Standard Operation Status Group Structure .................

5-6. Trigger System Conguration . . . . . . . . . . . . . . . . . . . . . . . .

5-7. Inside an Event Detection State ......................

5-8. NR1 Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-9. NR2 Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-10. NR3 Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-11. Real Data Format .............................

6-1. High Throughput Measurement System .......... ...... ...

6-2. High Throughput Measurement Sample Program . . . . . . . . . . . . . . .

6-3. Multi Test Voltage Measurement System . . . . . . . . . . . . . . . . . . .

6-4. Multi Test Voltage Measurement Sample Program ........ ......

6-5. Additional Error Due to Voltage Source Noise ................ 6-10

6-6. 10% Additional Error ........................... 6-11

6-7. Precharge Time ........ ...... ...... ...... .... 6-12

6-8. Wait Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

8-1. Resistance to Current Conversion Diagram ................. 8-3

8-2. Current Measurement Additional Error (Measurement Time:10 msec) ..... 8-9

8-3. Current Measurement Additional Error (Measurement Time:30 msec) ..... 8-10

8-4. Current Measurement Additional Error (Measurement Time:100 msec) .... 8-10

8-5. Current Measurement Additional Error (Measurement Time:400 msec) .... 8-11

8-6. 10 % Additional Error (Measurement Time: 10 msec) ............ 8-12

8-7. 10 % Additional Error (Measurement Time: 30 msec) ............ 8-13

8-8. 10 % Additional Error (Measurement Time: 100 msec) . . . . . . . . . . . .

8-9. 10 % Additional Error (Measurement Time: 400 msec) . . . . . . . . . . . .

8-10. Relation Between

Cxand Cable Capacitance

Cig

...... ..... .... 8-16

9-1. Ammeter Oset Voltage Test Setup ..................... 9-3

9-2. Ammeter Input Resistance Test Setup Using DC Power Supply ........ 9-4

9-3. Ammeter Input Resistance Test Setup Using DC Voltage Calibrator ...... 9-5

9-4. Current Measurement Accuracy Test Setup .. ...... ...... ...

9-5. Current Measurement Accuracy Test Setup Using DC Power Supply . . . . . .

9-6. Current Measurement Accuracy Test Setup Using DC Voltage Calibrator . . . . 9-7

5-4

5-33

5-34

5-35

5-36

5-38

5-39

5-40

5-41

6-2

6-4

6-5

6-7

8-13

8-14

9-6

9-7

Contents-9

9-7. Resistance Measurement Accuracy Test Setup ................ 9-9

9-8. Resistance Measurement Accuracy Test Setup Using DC Power Supply . . . . . 9-10

9-9. Resistance Measurement Accuracy Test Setup Using DC Voltage Calibrator . . . 9-10

9-10. Handler Interface Functional Test Setup . . . . . . . . . . . . . . . . . . . 9-23

9-11. Handler interface Output Order . . . . . . . . . . . . . . . . . . . . . . . 9-24

9-12. Contact Check Functional Test Setup .... ...... ..... ..... 9-25

A-1. Serial Number Plate ...... ...... ...... ..... ..... A-2

B-1. Handler Interface Comparison Output Signals Diagram . . . . . . . . . . . . B-2

B-2. Handler Interface Control Output Signals Diagram . . . . . . . . . . . . . . B-3

B-3. Handler Interface Input Signal Diagram . . . . . . . . . . . . . . . . . . . B-4

B-4. A1 Main Board .. ...... ...... ...... ...... .... B-8

Contents-10

Tables

1-1. Power Voltage Selector Setting .......... ...... ...... . 1-11

3-1. Reset Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

3-2. Line Voltage selection ........................... 3-13

3-3. Contact Assignment for Comparator Function . . . . . . . . . . . . . . . . 3-15

3-4. HP-IB Interface Capability .... ...... ...... ...... ... 3-18

5-1. Sux Multiplier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

5-2. Status Byte Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . 5-34

5-3. Standard Event Status Register Assignments . . . . . . . . . . . . . . . . . 5-35

5-4. Operation Status Register Assignments ................... 5-37

5-5. Questionable Status Register Assignments . . . . . . . . . . . . . . . . . . 5-37

6-1. Measurable DC Current and Capacitance in Each Range ........... 6-9

8-1. Measurement Accuracy .. ...... ...... ...... ......

8-2. Measurable Current Range and Measurable Capacitance Range ........ 8-8

9-1. Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-2. Substitute Equipment for Reference Voltage . . . . . . . . . . . . . . . . .

9-3. Current Measurement Accuracy Test Settings ................

9-4. Resistance Measurement Accuracy Test Settings ...............

A-1. Manual Changes by Serial Number .....................

A-2. Manual Changes by ROM Version ......................

A-3. OVLD/N.C. Operations (Meas. parameter: R) ................

A-4. OVLD/N.C. Operations(Meas. parameter: I) .... ...... ..... ..

B-1. Handler Output Electrical Characteristics ...... ...... ......

B-2. Handler Input Electrical Characteristics . . . . . . . . . . . . . . . . . . .

B-3. Pull-up Resistor Locations .........................

C-1. OVLD/N.C. Operations (Meas. parameter: R) ................

C-2. OVLD/N.C. Operations(Meas. parameter: I) ...... ...... .....

8-4

9-1

9-8

9-11

A-1

A-4

B-1

B-3

B-9

C-1

C-2

Contents-11

Getting Started

Introduction

This chapter provides information to get you started using your HP 4349B 4-Channel High

Resistance Meter. This chapter discusses the following topics:

Overview

Initial Inspection

Ventilation Requirements

Instruction for Cleaning

Power Cable

Preparation for Use

Using the Front-Panel Keys

not

Caution

terminals, or the HP 4349B's input circuits will be destroyed. Connect a

current limitting resistor to avoid the over current when a shorted device is

apply a dc voltage exceeding650 V or650 mA to the INPUT

connected. Refer to \

HP 4349B 4-Channel High Resistance Meter

Installation" in Chapter 2 for details.

HP 4349B 4-Channel High Resistance Meter with Option 001 ( 2 channels )

Getting Started 1-1

HP 4349B

Overview

The HP 4349B 4-Channel High Resistance Meter is a high throughput, digital high resistance

meter. The HP 4349B is designed for production testing of capacitors.

Features

Designed for capacitor measurements

4-channel input

High speed measurement

Fast settling time

High speed contact check

Comparator function

High Throughput

To verify component reliability, capacitor manufacturers need to test capacitor insulation

resistance at dierent voltage levels. The 4-channel conguration permits simultaneous

testing of four capacitors with dierent test voltages. This testing technique reduces the

investment cost for instruments to 25% when compared to a single channel instrument. The

HP 4349B's 11 ms 4-channel simultaneous measurement improves the test throughput on

capacitor production lines.

When insulation resistance testing for capacitor manufacturers, capacitor charge time is a

key factor in slowing down measurement speed. The HP 4349B's front-end has a 1 k input

resistance to reduce the capacitor's charge time, and thus increases test throughput.

The contact check function veries that the signal path between the handler and the DUT

is optimal for a measurement. Contact checking maintains automatic handler/DUT integrity

while keeping system throughput high.

System Integration

Built-in comparators for all four channels and the HP-IB/handler interface make system

integration with automatic handlers and computers a fast and clean process

Note

The HP 4349B has no test voltage source so an external voltage source is

required to make resistance measurements. (The HP 4349B converts current

measurement data into resistance using the test voltage data entered into

memory.)

1-2 Getting Started

HP 4349B

Accessories Available

HP 16117E Low Noise Test Leads (1 m, with connector, 1 unit)

Options Available

Option 001 2 Channels

Getting Started 1-3

HP 4349B

Front Panel

This section gives a guided tour of the front panel.



For a detailed description of each key's function, see Chapter 3.



A description starting with (Shift) is the secondary function of the key, which is available by

pressing the BLUE shift key (see 31).

Display

LINE Switch

Chassis Terminal

INPUT Terminals

displays results, instrument states, and error messages.

turns the HP 4349B ON and OFF.

is tied to the instrument's chassis.

are connection ports for the test leads. (If your HP 4349B is equipped

with Option 001, 2 Channels, then only Ch 1 and Ch 2 exist.)

INSTALLATION CATEGORY I

Channel Key

Measurement Parameter Key

Show Setting Key

selects one of the four channels to display.

selects the measurement parameter to be displayed.

changes the mode of the Measurement Settings display on the right side

of the LCD display.

(Shift)

Range Auto/Hold Key

(Shift)

Left/Down Arrow Key and Right/Up Arrow Key

10.

Voltage Entry Key

Display Mode key

toggles the measurement range mode between Auto and Hold.

Range Setup Key

enters the test voltage value, which is used with the measured current

selects the display mode.

selects the measurement range.

value to calculate the resistance.

11.

Measurement Time Key

12.

Average Key

sets the averaging rate used to average the measurement value.

sets the measurement time to 10 ms, 30 ms, 100 ms or 400 ms.

increases or decreases the setting value.

13.

Trigger Mode Key

(Shift)

14.

Trigger Key

Delay Key

1-4 Getting Started

selects trigger source from Internal, Manual, or External.

sets the trigger delay time.

triggers a measurement when in the manual trigger mode

HP 4349B

15.

Local Key

returns the HP 4349B to the local mode from the HP-IB remote mode.

(Shift)

16.

Recall Key

(Shift)

17.

High Limit Key

18.

Low Limit Key

19.

0Key

Address Key

sets the HP-IB address.

recalls instrument state data from the internal memory.

Save Key

stores instrument state data to the internal memory.

sets the upper comparator limit value.

sets the lower comparator limit value.

/ (Shift)

Key Lock key

toggles to disable

and enable the front panel key input.

20.

. (point) key

/ (Shift)

Reset Key

resets the

HP 4349B to the default state.

21.0(minus) Key

/ (Shift)

Conguration Key

the beeper and the power line frequency, and

executes the internal test.

22.

Enter Key

23.

2Key

enters the input value to the HP 4349B.

/ (Shift)

Contact Check Key

toggles contact

check function between ON and OFF.

24.

1Key

/ (Shift)

Comparator Key

toggles

the comparator function between ON and OFF.

25.

4Key

/ (Shift)

Open key

takes OPEN correction data.

sets

26.

5Key

27.

7Key

28.

8Key

29.

9Key

30.

BLUE Shift Key

/ (Shift)

Note

31.

6Key

32.

Exponential Key

33.

Back Space Key

34.

3Key

Minimum Key

Maximum Key

activates the secondary functions printed above the front-panel keys

inputs the minimum value when setting a parameter.

enters the maximum value when setting a parameter.

In this manual, the BLUE shift key is expressed as , the top of the key is

not labelled with \blue".

enters exponent value when entering numeric values.

erases the last character entered when entering numeric values.

Getting Started 1-5

Display

This section introduces the display.For a detailed description of each display eld, see

Chapter 3.

Character Display Area

messages. The

Annunciator(9

Measurement Settings

) points to the currently selected instrument settings. The annunciator

displays the measurement result, setting data, and instrument

area displays the current HP 4349B settings.

labels are as follows:

HP 4349B

Measurement Time

shows the selected measurement time is 10 ms, 30 ms, 100 ms, or

400 ms.

Trigger

Hold Range

shows the trigger mode is Internal, Manual, or External.

indicates that the HP 4349B is in Hold range mode

displayed when in Auto mode.

Comparator On

Contact Check

Talk Only

Remote

Key Lock

Shift

indicates that the shifted key functions are active.

indicates that the HP 4349B is in the HP-IB remote mode

indicates that the HP 4349B's front-panel keys are locked out.

indicates that the comparator function is ON.

indicates that the contact check function is ON.

indicates that the HP 4349B is in the T

. The annunciator is not

alk Only mode.

1-6 Getting Started

HP 4349B

Rear Panel

This section gives a guided tour of the rear panel. For a detailed description of each item on

the rear panel, see Chapter 3.

HP-IB Interface

command.

Handler Interface

Ext Trigger Terminal

Serial Number Plate

Line Voltage Selector Switch

source.

Line Fuse Holder

Power Cord Receptacle

is used to control the HP 4349B from an external controller using HP-IB

is used to synchronize timing with an external handler machine

is used to trigger a measurement by external signal.

gives the instrument's manufacturing information.

is used to set the HP 4349B to the voltage of the A

C power

Getting Started 1-7

Initial Inspection

HP 4349B

Warning

Inspect the shipping container for damage. If the shipping container or cushioning material

is damaged, it should be kept until the contents of the shipment have been checked for

completeness and the HP 4349B has been checked mechanically and electrically. The contents

of the shipment should be as follows:

HP 4349B 4-Channel High Resistance Meter

Power cable

Operation Manual (This book)

If the contents are incomplete, if there is mechanical damage or defect, or if the analyzer does

not pass the power-on selftests, notify the nearest Hewlett-Packard oce. If the shipping

container is damaged, or the cushioning material shows signs of unusual stress, notify the

carrier as well as the Hewlett-Packard oce. Keep the shipping materials for the carrier's

inspection.

To avoid hazardous electrical shock, do not turn on the HP 4349B when

there are signs of shipping damage to any portion of the outer enclosure

(for example, covers, panel, or display)

Ventilation Requirements

To ensure adequate ventilation, make sure that there is adequate clearance of at least 250 mm

behind, 100 mm sides and 15 mm above.

Instruction for Cleaning

For cleaning, wipe with soft cloth that is soaked with water and wrung tightly without undue

pressure.

1-8 Getting Started

HP 4349B

Power Cable

In accordance with international safety standards, this instrument is equipped with a

three-wire power cable. When connected to an appropriate ac power outlet, this cable grounds

the instrument frame. The type of power cable shipped with each instrument depends on the

country of destination. Refer to Figure 1-1 for the part numbers of the power cables available.

Warning

For protection from electrical shock, the power cable ground must not be

defeated. The power plug must be plugged into an outlet that provides a

protective earth ground connection.

Getting Started 1-9

HP 4349B

1-10 Getting Started

Figure 1-1. Power Cable Supplied

HP 4349B

Preparation for Use

Before you use the HP 4349B, you must set the HP 4349B to match the available power line

voltage and frequency.

Set line voltage|see \Power Requirements".

Set line frequency|see \Turning ON the HP 4349B".

Power Requirements

The HP 4349B's power source requirements are as follows:

Line Voltage

Line Frequency

Power Consumption

Conrm that the LINE Voltage Selector on the rear panel is set to match the power line voltage

before plugging in the HP 4349B. Refer to Table 1-1.

Voltage Selector Line Voltage Required Fuse

Fuse

Use the fuse shown in Table 1-1. If you require the fuse, contact the nearest Hewlett-Packard

sales oce.

The fuse can be replaced by turning the fuse holder counterclockwise until the fuse holder

pops out with a minus screw driver.For the fuse holder location, see \Rear Panel" in this

chapter.

: 100 / 120 / 220 / 240 V ac (610%)

: 47to66Hz

:45VA maximum

Table 1-1. Power Voltage Selector Setting

100V/120Vac(610%) UL/CSA type, Time delay 0.5A 250V

(HP part number 2110-0202)

220V/240Vac(610%) UL/CSA type, Time delay 0.25A 250V

(HP part number 2110-0201)

Getting Started 1-11

HP 4349B

Turning ON the HP 4349B

1. Connect the power cable to the Power Cord Receptacle on the rear panel.

2. Push the LINE switch in. The HP 4349B will emit a beep when it turns ON, and performs

the self test. (If any message is displayed, see \Error Messages" back of this manual.) The

HP 4349B will be ready for operation after a message like shown in the following gure is

displayed.

3. Conrm the ac line frequency setting of the HP 4349B.

a. Press .

b. Press until

A blinking item means that it is currently selected.

c. If the setting is not matched to the ac line frequency, press to toggle the setting

between

d. Press two times to exit this menu.

The power line frequency setting is stored and is not changed after reset or power-o. Once

you set it, you do not need to set the line frequency as long as the same power line frequency

is being used.

50 Hz

Line

and

blinks, then press .

60 Hz

1-12 Getting Started

HP 4349B

Using Front Panel Keys

The HP 4349B has four type of keys as follows:

Direct Execution Keys

Toggle Keys

Selection Keys

Value Setup Keys

This section tells how to operate the HP 4349B using its front-panel keys.

Note

If you want to exit an operation and go back to the measurement display, press

several times.

Direct Execution Keys

Pressing a direct execution key will perform the pressed key's function immediately.For

example,

Press

. The HP 4349B will begin the OPEN correction immediately

Toggle Keys

Pressing a toggle key will switch between several conditions

. An annunciator(9) will indicate

the current condition. For example,

Press

Meas Time

annunciator(9) points to 10 ms, 30 ms, 100 ms, or 400 ms.

. The

Selection Keys

Pressing a selection key will display the selection display. The blinking item is the one

currently selected. By using

, or the selection key itself, the item selected can be

changed.

For example, to perform self test,

Exit

1. Press

2. Press to select

3. Press

. The self test will start immediately. After the test is nished, the HP 4349B

is blinking.

Test

displays any existing error code, and returns to the menu.

Exit

4. Press

the menu.

Getting Started 1-13

HP 4349B

Value Setup Keys

Pressing a value setup key will display parameter entry display and prompt you to enter a

value.

For example, pressing displays,

The displayed value can be altered by using the following keys:

Numeric Keys

Maximum and Minimum Keys

Left/Down and Right/Up Arrow Keys

Back Space Key

Numeric Keys

Some commands use numeric parameters. A numeric parameter is the actual value used by the

HP 4349B. For example, to set the test voltage value to 100 V

1. Press

2. Press to enter the value and to exit.

You can also enter numeric parameters using exponential notation.

1. Press .

2. Press to enter the value and to exit.

1-14 Getting Started

HP 4349B

Note

Maximum and Minimum Keys

These keys enter the maximum and minimum numeric value in place of having to use the

numeric keys.For example,

1. Press , and you will get the maximum voltage value.

2. Press to enter the value and to exit.

Left/Down and Right/Up Arrow Keys

Before you press the previous setting is still the current setting, even

if the displayed value has changed. If you press a key other than one of the

keys in ENTRY block before pressing , the setting will not change and the

displayed value will be discarded.

Increments or decrements the numeric entry.For example,

1. Press

2. Press

3. Press

Back Space Key

Erases the last entered character to cancel an input value.For example,

1. Press

to bring up the averaging setup display.

several times and conrm a change in value.

to exit the averaging setup display.

Getting Started 1-15

HP 4349B

2. Press . The last entered number,4, is erased.

If you have any problems

If you have any problems operating the HP 4349B see \If Your HP 4349B Has a Problem"in

Chapter 2.

1-16 Getting Started

Operating the HP 4349B

Introduction

This chapter provides step-by-step instructions for using the HP 4349B 4-Channel High

Resistance Meter.

This chapter includes the following sections:

Installation

Measurement Conguration

Making measurements

Testing the HP 4349B

If You Have a Problem

Refer to Chapter 3 for the description of each front panel key function.

Operating the HP 4349B 2-1

HP 4349B

External Voltage Source

The HP 4349B has no internal test voltage source.You must supply a suitable external voltage

source in order to make resistance measurements.

In a typical case, measuring the insulation resistance of capacitors whose insulation resistance

value is expressed1G1

F within10% measurement accuracy, the external voltage source

must meet the following specications:

Ripple :

Wide Band Noise :

Switching Noise :



1mV

5



50 mV

(0.7 mV

rms

/pHz(2

rms

preferable) @ 50/60 Hz

rms

/pHz

rms

preferable) @ 50 Hz

Test Leads

Use the HP 16117E Test Lead to connect the HP 4349B and the DUT. The HP 16117E contains

one cable (1 m, with triaxial connectors on the both ends) and one connector (Triaxial Female).

So, four HP 16117E Test Leads are required when you want to use four channels

Specications

Applicable Test Voltage : 250 V maximum

Cable Length : 1 m (triaxial connector to triaxial connector)

Operating Temperature : 0 to 45

Operating Humidity :70% RH (@ 40

Non-operating Temperature :040 to 70

Non-operating Humidity :95% RH (@ 40



2-2 Operating the HP 4349B

Figure 2-1. HP 16117E Test Lead

HP 4349B

Installation

Figure 2-2 shows the typical system using the HP 4349B.

Figure 2-2. Typical Measurement System

Operating the HP 4349B 2-3

HP 4349B

Connect capacitors (Cb) with a value of about 500 pF (100 to 1000 pF) between the test

voltage side terminal of the device under test and the shield of the triaxial test cable to

bypass the contact check signal. (When Rs is greater than 1 k.)

Insert a resistor between the test voltage source and device under test. This resistor is for

limitting the current and reducing the voltage source noise eect. The minimum value for

current limit is calculated as follows:

Rs = Test Voltage / Current Limit

(For details about reducing the voltage source noise eect, refer to \How to Reduce the

Measurement Error" in Chapter 6.)

not

Caution

apply a dc voltage exceeding650 V or650 mA to the INPUT

terminals, or the HP 4349B's input circuits will be destroyed. Connect a

current limitting resistor between the test voltage source and device under

test to avoid the over current when a shorted device is connected. The series

resistance value should be:

Rs>(Test Voltage[V] / 0.05[A] )

Warning

The measurement system using the HP 4349B and the external voltage

source may output dangerous voltage.To prevent an electrical shock,

observe the following safety precautions.

Hewlett-Packard recommends you to attach the safety interlock function

to the measurement system so that the operators can not touch the

parts where dangerous voltage may appear. If not possible, warn the

operators and the workers around the measurement system not to touch

the parts.

Use the parts with the safety function to prevent an electrical shock

caused by the insulation breakdown, even if dangerous voltage does not

appear on the parts directly.

Turn OFF the output of the external voltage source and discharge

the remanent charge of the DUT thoroughly, before touching the

measurement system or the DUT where the dangerous voltage may

appear.

Use the power cord shipped with the HP 4349B and provide an

uninterruptible safety earth ground to the instrument.

Do not apply a dc voltage exceeding650 V or650 mA to the INPUT

terminals.

HP warrants the HP 4349B and its accessaries provided by HP

. HP does

not warrant any accidents caused by trouble in an external voltage source

or the measurement system.

2-4 Operating the HP 4349B

HP 4349B

Measurement Conguration

This section discusses the HP 4349B's general conguration topics that apply to many or all

measurement functions.

To Reset the HP 4349B

Resetting sets the HP 4349B to its default settings.To reset the HP 4349B:

Press

Select

Yes

to display the system reset menu.

using

or and press .

ToPerform the OPEN Correction Function

The OPEN correction cancels the HP 4349B's oset error and the test xture's leakage current.

To perform the OPEN correction:

1. Connect the test leads for all channels to the HP 4349B without connecting the DUT.

2. Press

Correction

. While the OPEN Correction procedure is in progress

, the message

will be displayed, and when the OPEN correction procedure is nished, the

Open

previous display is returned.

To Select a Measurement Parameter

The current measurement parameter is shown on the left side of the display when the display

is in the

Data

display mode;Rfor resistance andIfor current. To select measurement

parameter:

1. Press

2. SelectRorIusing , and press .

Operating the HP 4349B 2-5

To Select the Channel

HP 4349B

The channel to be displayed or to set the values is selected by using

.To change the

channel:

Press

until the desired channel is selected.

The currently selected channel is indicated by the sux ofR(orI) andVin the display.

To Enter the Voltage Value

The current voltage setting is displayed on the right of the measurement data, or in the

Measurement Settings

area. To enter the voltage value:

1. Select the channel for which the voltage value is to be entered.

2. Press

3. Enter the voltage value, and press to set the value and to exit.

To Select the Measurement Range

The

Hold Range

annunciator(9) gives the current range status; the Auto range mode when it is

OFF, or the Hold range mode when it is ON.

To select the Auto range mode when the HP 4349B is in the hold range mode:

Press

Hold Range

annunciator(9) turns OFF.

. The

To select the range in the Hold range mode:

1. Select the channel for which the range is to be set.

2. Press

to display the range setup menu.

3. Press or to select the range.

4. Press

The currently selected range is displayed in the

to set the range and to exit.

Measurement Settings

area.

2-6 Operating the HP 4349B

HP 4349B

To Select the Measurement Time Mode

The current measurement time setting is indicated by the

To select the measurement time:

Press until the measurement time is set to the desired value (10 ms, 30 ms, 100 ms, or

400 ms.)

To Set the Averaging Rate

To set the averaging rate or to show the current setting:

1. Press .

2. Enter the desired value, or press to select the value.

3. Press

The current averaging rate can be displayed in the

Change the Measurement Settings Display").

to set the value and to exit.

Measurement Settings

Meas Time

annunciator(9).

area (see \To

To Set the Trigger Delay Time

To set the trigger delay time:

1. Press

2. Enter the desired value.

3. Press to set the value and to exit.

The current trigger delay time can be displayed in the

display (see \To Change the Measurement Settings Display").

Measurement Settings

area of the LCD

Operating the HP 4349B 2-7

To Set the Contact Check

The

Cont Check

annunciator(9) tells the current contact check status.To set or abort the

contact check function:

HP 4349B

Note

Before performing the contact check, perform the OPEN correction to measure

the reference value of the contact check.

To enable or disable the contact check function:

1. Press

2. Select

ON/OFF

3. SelectOnor

using or and press to select.

Off

using or , and press to exit to the previous display.

4. Select

5. The

Exit

using

Cont Chk

annunciator(9) turns ON if the contact check function is enabled.

In the case of the contact check function is enabled,

when the contacts between dut and xture are open. See \Contact Check Eective Range

or , and press to exit.

N.C.

(No-Contact) will be displayed

"in

Chapter 8 for the contact check eective range.

Contact check compares a measured capacitance data of dut with a limit data. Interpretation

of the limit data and the measured capacitance data of the dut are shown below.

Reading the Limit Data of Contact Check Function

1. Select the desired channel.

2. Press

3. Select

using or , then press .

2-8 Operating the HP 4349B

HP 4349B

4. Select

5. The limit value is displayed.

The limit data (

Where:

Oset

OfsEnt

measurement,

LimitC

Stray capacitance at open measurement (Value returned from the HP-IB

command

Data entered by

is set to `0''(default) in normal measurement. In case of a parallel capacitor

using or , then press .

Limit

) is calculated by the following equation.

Limit=Cs31:

:SENS:CORR:DATA? SCAP

OfsEnt

will be set to the capacitance of the parallel capacitor

035 + 0:40310

)

Of f set

Operating the HP 4349B 2-9

Reading the Capacitance Data at DUT Measurement

1. Select the channel.

2. Press

HP 4349B

3. Select

4. Select

using or , then press .

MeasC

using or , then press .

5. The capacitance value at measured DUT is displayed.

The condition of

N.C.

(No Connection) is shown below.

M easC < Limit

Where

MeasC

Limit

Data displayed in

MeasC

Limit

The capacitance is not measured in the case of the contact check function is unenabled.

To Set the Beeper Mode

To set the beeper mode for the comparator result reporting:

1. Press

2. Select

Beep

using or and press .

3. Select the desired beeper mode using or and press .

4. Select

Exit

using or and press .

2-10 Operating the HP 4349B

HP 4349B

Saving and Recalling Instrument Settings

The HP 4349B can save and recall the instrument's settings into non-volatile memory

(EEPROM).

To save the current settings:

1. Press .

2. Enter the register number (0 to 9) that you want to save the settings into.

3. Press to save.

Note

To recall a setting.

1. Press

2. Enter the register number (0 to 9) that you want to recall the settings from.

3. Press to recall.

Record the register number that you used for future reference.

Operating the HP 4349B 2-11

Making a Measurement

This section discusses the methods for making measurements after conguring for

measurement.

Triggering a Measurement

HP 4349B

The HP 4349B has four trigger source modes: Internal, Manual, External, or Bus. The

annunciator(9) shows which trigger source is selected.

Note

When the bus trigger mode is selected, none of the

Trigger

annunciator(9)is

ON. The bus trigger mode can be set by HP-IB commands only.

To Trigger Internally

1. Press

until the

Int

annunciator(9) is ON.

To Trigger Manually

1. Press until the

2. Press

to trigger a measurement.

Man

annunciator(9) is ON.

To Trigger Externally

1. Connect an external trigger source to the Ext Trigger terminal on the HP 4349B's rear

panel.

2. Press

until the

Ext

annunciator(9) is ON.

Trigger

3. Apply a TTL level trigger signal to trigger a measurement. (Refer to \External Trigger

Terminal" in Chapter 3 for trigger specications.)

To Use the Comparator Function

The comparator function can be used to sort DUTs according to user set parameter limits.

To set the limit values:

1. Press

to select the channel to set.

2. Press .

Enter the lower limit value, and press .

2-12 Operating the HP 4349B

HP 4349B

3. Press .

Enter the upper limit value, and press .

To start sorting:

Press

To display the sorting results:

1. Press .

2. Select

The comparator results of four channels are displayed.

To stop sorting:

Comprtr

using or and press .

Operating the HP 4349B 2-13

To Select the Display Mode and Display Digits

HP 4349B

Press

Select the desired mode using or (

results,

Off

If you select

. The display mode selection menu appears.

Data

:Display OFF). To exit the menu, select

Digit

, the display digits selection menu appears. Select the desired digits (3, 4, or

:Measurement Data,

Exit

Comprtr

:Comparator

5) using or , and press . After selecting the display digits, the HP 4349B returns

to the display mode selection menu.

To Change the Measurement Settings Display

Each time

is pressed, the display mode of the Measurement Settings area is changed as

follows:

1. Measurement range

2. Averaging rate

RNG

and Voltage value

AVG

and Trigger delay time

VOL

of the selected channel

DLY

3. Upper comparator limitHand Lower comparator limitLof the selected channel

2-14 Operating the HP 4349B

HP 4349B

Locking Out the Front Panel Keys

To lockout the keys:

Press

To unlock the keys:

Press again.

Selecting Local Mode

To return the HP 4349B to local mode from HP-IB remote mode:

Press .

Setting the HP-IB Address

1. Press .

2. Enter the desired value, then press to set the value and to exit.

When you just want to see the current setting, press .

Printing Measurement Data

The HP 4349B can print measurement data to an HP-IB compatible printer without using an

external controller.Todoso, you must:

1. Set the printer to listen-always mode. (Consult the printer manual for instructions.)

2. Connect the printer to the HP 4349B's HP-IB port.

3. Turn the printer ON.

4. Set the HP 4349B's HP-IB address to 31 (talk only mode).

Press

The printer will automatically begin printing the measurement data.

5. To stop printing, change the HP 4349B's HP-IB address to an address other than 31 (for

example, 17, which is the default setting).

Press

Operating the HP 4349B 2-15

ToTest the HP 4349B

Performing a Self-Test

The HP 4349B has a self-test function to check its basic performance.

HP 4349B

1. Press

2. Select

Test

using or , and press to execute the self test. If any error

message is displayed, refer to \Messages" back of this manual.

3. Select

Exit

and press

to exit.

Testing the Front Panel Keys' Functionality

The HP 4349B has a service function to test the functionality of the front panel keys (as well

as the handler interface, the ROM, the RAM, and the EEPROM).

This section describes how to test the front panel keys' functionality

(For the handler interface test, refer to Chapter 9 for the procedure

. The other tests are for

use by service personnel only.)

1. Press

2. Select

3. Select

Svc

using

KEY

using or and press .

or and press .

4. Press the front panel key that you want to test.

For example, if you want to test , press .

When the key functions properly,

Key Code:5 Trigger

is displayed; otherwise, there

will be no such display, and the key is not functioning correctly. Contact your nearest

Hewlett-Packard oce.

5. To exit the front panel key test, press

6. Select

Exit

and press to exit.

twice.

2-16 Operating the HP 4349B

HP 4349B

If Your HP 4349B Has a Problem

If the Display is Blank and the HP 4349B Appears Dead

If the display is blank, and even the annunciators are not ON:

Check the fuse.

If an Error Message is Displayed

Refer to \Messages."

If the HP 4349B does not Accept Any Key Input

Check whether the

Rmt

annunciator is ON.

Check whether the external controller is disabling all the front-panel controls using the

LOCAL LOCKOUT

If so, send the

Press

Check whether the

command.

LOCAL

command from the external controller.

Key Lock

annunciator is ON.

Check whether the handler or the HP 16064B LED display/trigger box is connected to the

HP 4349B and it locks out the keys.

If so, unlock the keys from the handler or the HP 16064B

Press

If the Resistance Value Is Always 0 

Enter a test voltage value.

Operating the HP 4349B 2-17

Function Reference

Introduction

This chapter provides information on all of the HP 4349B's functions.

Front Panel

Rear Panel

Theory of Operation

Function Reference 3-1

Front Panel

HP 4349B

Figure 3-1. Front Panel

Note

In this manual, the blue shift key is expressed as , the top of the key is

not labelled with \blue".

Display

The display has two functions|the character display and annunciator display

The character display displays the measurement result, setting data, and instrument messages

The HP 4349B has three measurement display modes.For details on the display modes, refer to

\Display Mode Key

The annunciator (9) points to the current setting of the HP 4349B. The annunciators are

Meas Time

(Measurement Time) indicates measurement time|10 ms, 30 ms, 100 ms, or

400 ms.

Trigger

Hold Range

indicates the trigger mode|Internal, Manual or External.

shows the measurement range mode|Hold (when the annunciator is displayed)

or Auto (when the annunciator is not displayed).

Comprtr On

Cont Chk

Talk Only

(Comparator On) indicates the comparator function is ON.

(Contact Check) indicates the contact check function is ON.

(Talk Only) indicates the HP 4349B is in the Talk Only mode.

Rmt

Key Lock

Shift

(Remote) indicates the HP 4349B is in the HP-IB remote mode

indicates the HP 4349B's front panel key is disabled.

indicates the secondary key functions (printed above the keys in blue

characters) are the active functions.

3-2 Function Reference

HP 4349B

LINE Switch

Power ON/OFF switch. In the 1 (ON) position power is applied and all operating voltages

are applied to the instrument. In the 0 (OFF) position no power is applied and no operating

voltages are applied to the instrument.

The HP 4349B's settings are held in backup memory for 72 hours after power is turned OFF,

and are restored as the current settings when power is turned ON again within the 72 hours

period. The backed up settings are:

Test voltage entry for each channel

Measurement parameter

Auto / Hold range

Measurement range for each channel

Measurement time

Averaging rate

Trigger mode

Trigger delay

Comparator ON / OFF state

High and low limit value for each channel

Contact check ON / OFF state

Display mode

Chassis Terminal

The Chassis terminal is tied to the instrument's chassis

INPUT (Ch1, Ch2, Ch3, and Ch4) Terminals

These are the terminals used to connect the test leads to measure the DUT

type is triaxial, which is congured as a center conductor

, an inner shield, and an outer shield.

The outer shield, connected to the ground, shields the test the test signal from noise

. The connector

. The

inner shield, to which nothing should be connected, guards the very small current signal, and

cuts the leakage current of the contact check signal. The center conductor

, lead to the test

electrode, is the test signal path.

The HP 4349B has four channels, Ch1, Ch2, Ch3, and Ch4 (If your HP 4349B is equipped with

Option 001, 2 Channels, there are only two channels, Ch 1 and Ch 2.), and a measurement

is simultaneously performed at each channel when the HP 4349B is triggered to make a

measurement. The displayed channel is selected using

Each channel has the respective settings for the following functions:

Test voltage entry

Measurement range (in Hold Range mode)

Limit values for comparator

Caution

DO NOT apply a dc voltage exceeding650 V, or dc current exceeding650 mA

to the UNKNOWN terminals, or the HP 4349B's input circuits will be destroyed.

Function Reference 3-3

HP 4349B

Channel key

The Channel key selects channel to be displayed or whose value is to be set. The channel

selection is indicated by the sux of the displayed parameter such asR,I,orV. The channel

key is not the key which selects the measurement channel, because the HP 4349B always

preforms a measurement simultaneously on all four channels.

Voltage Entry Key

The Voltage Entry key is used to enter the test voltage value which the HP 4349B uses to

calculate and display the resistance value. The available values are from00 V to 5 kV with

0.1 V resolution. The current setting value,V1(orV2,V3,V4) is displayed along with the

measurement result. The default value is 0 V.

Measurement Time Key

The Measurement Time key sets the measurement time mode: 10 ms, 30 ms, 100 ms, or

400 ms. The current setting is indicated by the

Meas Time

annunciator(9). The default

measurement time is 30 ms.

Average Key

The Average key sets the measurement averaging rate. The HP 4349B averages the

measurement results automatically.Averaging rate can be set from 1 to 256. The default

averaging rate is 1.

Measurement Parameter Key

The Measurement Parameter key selects the measurement parameter. The HP 4349B has the

following measurement parameters:

Resistance (calculated from the measured I value and voltage value entered by

Current

The currently selected measurement parameter is displayed on the left side of the

measurement display. The default measurement parameter is R.

Note

TheVdisplayed withRorIis not a measured value but a user-entered value

entered using

Show Setting Key

The Show Setting key changes the display mode of the

Measurement Settings

area. Each time

is pressed, the displayed information is changed as follows:

)

1. Range and Voltage value of the selected channel

2. Averaging rate and Trigger delay time

3. Comparator limits of the selected channel

3-4 Function Reference

HP 4349B

Display Mode Key

The Display Mode key sets the HP 4349B to one of the following three display modes:

Measure Display

displays the measured result of selected channel. When the

contact check function is ON and a contact check fails, the message

N.C.

(no-contact) is displayed instead of measured data. (default)

Comparison Display

(When comparator function ON) displays the result message of the

comparator asHI(grater than upper limit),IN(passed),LO(less than

lower limit), and in addition, when the contact check function is ON,

N.C.

(contact check failed) for all channels.

Display O

If you select

Digit

(When comparator function OFF) displays

Display OFF mode. No measurement result is displayed.

in the display mode selection menu, you can select the display digits for the

OFF

measurement data. The available digits are3,4, and5.

Auto/Hold Range Key

The Auto/Hold Range key toggles the measurement ranging mode between A

uto and Hold.

The Auto mode selects the optimum measurement range automatically within 5 measurement

cycles. The Hold mode xes the measurement range setting to range you selected. When

the Hold mode is selected, the

Hold Range

annunciator(9) will be displayed. The default

measurement range mode is Auto.

Range Setup Key

The Range Setup key sets the measurement range. The available measurement range settings

are as follows:

100 pA (not available for 10 ms measurement time)

1nA

10 nA

100 nA

1A

10A (not available for 100 ms and 400 ms measurement time)

100A (not available for 30 ms, 100 ms and 400 ms measurement time)

Each measurement range is scaled 1.45 times of the range setup value. The optimum

measurement range setting is obtained by the full-scale measurement.

Comparator Limit Key

The Comparator Limit keys set the comparator upper and lower limit value.

Function Reference 3-5

HP 4349B

Trigger Key

The Trigger key triggers a measurement in manual trigger mode.

Local Key

The Local key returns the HP 4349B to the local mode (front-panel) operation from the

HP-IB remote mode (computer controlled). When the HP 4349B in the remote mode, the

Rmt

annunciator(9) will be displayed.

Address Key

The Address key sets the HP 4349B's HP-IB address. The available HP-IB addresses are the

integer numbers 0 to 30. Address 31 is the talk only mode in which the HP 4349B sends data

through HP-IB interface.

In the talk only mode, the output data is,

stat1>,<data1>,<comp1>,<stat2>,<data2>,<comp2>,<stat3>,<data3>,<comp3>,

stat4>,<data4>,<comp4

Where,

stat1-4>measurement status of each channel

0 : normal

1 : overload

2 : no-contact

data1-4>measurement data of each channel

comp1-4>comparison result of each channel (no output when the

comparator function is OFF)

1: in

2 : high

4 : low

8 : no-contact

The system reset or power-on doesn't aect the address setting.

Trigger Mode Key

The Trigger mode key toggles three trigger mode| Internal, Manual, or External. The

HP 4349B also has another trigger mode, BUS.

Internal (Int)

The internal trigger mode. In this mode measurements are free running and

continuous. (Default)

Manual (Man)

External (Ext)

The manual trigger mode. In this mode, the HP 4349B performs a single

measurement when the front-panel key

is pressed.

The external trigger mode. The HP 4349B is triggered by a TTL level pulse

input through the rear panel External Trigger connector, or through the

handler interface.For more information, refer to \External Trigger".

Bus

This mode is available only in the HP-IB remote mode

command and

*TRG

command trigger a single measurement.

. In this mode, the

3-6 Function Reference

GET

HP 4349B

Delay Key

The Delay key sets the delay time from the trigger to the actual start of the measurement. The

available delay range is 0 ms to 9999 ms with 1 ms resolution. The default delay value is 0 ms.

Note

The trigger delay time cannot be set individually for each channel. Once you

set the trigger delay time, the all channels will use the same delay setting.

Save Key

The Save key stores the current instrument's settings into non-volatile memory (EEPROM).

Saved settings are the same as the backup settings listed in \LINE Switch" description. You

must enter the register number, 0 to 9, to assign the register into which the settings will be

saved. Up to 10 sets of instrument settings can be saved.

Caution

The HP 4349B overwrites the instrument's setting into assigned register

without notice, if settings are already stored in the assigned register, they will

be lost.

Recall Key

The Recall key recalls instrument's setting saved in non-volatile memory (EEPROM). Y

ou must

enter the register number, 0 to 9, to assign the register from which the settings will be recalled.

If the register selected is empty, the error message,\

RECALL FAILED

" is displayed.

Right/Up Arrow Key and Left/Down Arrow Key

These keys serve the following functions:

When entering a value, key increases, and key decreases a value.

While HP 4349B is displaying several items, these keys are used to select (a selected item

blinks continuously so we will refer to selecting a setting as blinking a setting) adjacent items

in the list (

...

, 9, .(point),0(minus) Key

blinks the previous item and the blinks the next item).

...

These keys are used to enter numeric data. terminates data input.

BLUE Shift Key

The BLUE Shift key activates secondary functions printed above the keys.For example,

pressing

executes the OPEN correction.

The BLUE shift key function is cleared by a single execution of a shifted function or by

pressing the BLUE shift key again. The

Shift

annunciator(9) is displayed when the BLUE shift

key is toggled to the active mode.

Function Reference 3-7

Exponential Key

The Exponential key is used to enter exponential values.

Back Space Key

The Back Space key deletes a single preceding character of an input value.

Enter Key

The Enter key terminates numeric input data and the displayed menu.

Minimum Key

The Minimum key enters the minimum value during a setting operation.

Maximum Key

The Maximum key enters the maximum value during a setting operation.

HP 4349B

Comparator Key

The Comparator key toggles comparator function ON and OFF

. The default is comparator

function OFF.

The Comparator distinguishes whether or not the measurement result is within the upper and

lower comparator limits. When the comparator is ON,

Comprtr On

annunciator(9) will be

displayed. The comparison results output are assigned as follows:

Destination Condition

Comparison Display : HI, IN, LO, No-Contact

Handler Interface : HI, IN, LO, No-Contact

Beep (FAIL mode) : HI, LO, No-Contact

(PASS mode) :IN

Where,

HI greater than upper limit

IN between the upper limit and lower limit

LO less than lower limit

No-Contact contact check failed (at contact check ON state)

When a measurement parameter changes, the comparator function is automatically turned OFF.

3-8 Function Reference

HP 4349B

Contact Check Key

The Contact Check key toggles the contact check function ON and OFF. The Contact Check

function detects a broken cable or miss contact. The decision limit value for a contact is

obtained during the OPEN correction procedure. When an OPEN admittance is measured,

non-connection capacitance is measured and stored. The HP 4349B compares this value and

DUT's capacitance. The

Cont Chk

annunciator(9) indicates if the Contact Check function is in

the ON state. The default Contact Check function is OFF.

Open Key

The Open key executes the OPEN correction function. The OPEN correction data is used

to cancel the oset error of the HP 4349B and the leakage of the test xture. The OPEN

correction measures also the stray capacitance for the contact check function. The OPEN

correction data is stored in non-volatile memory (EEPROM).

The oset error of HP 4349B is temperature dependent. For maximum measurement accuracy,

Perform the OPEN correction after worming up the HP 4349B (30 minutes).



Perform the OPEN correction when ambient temperature changes more

C from the

temperature at which the OPEN correction was performed.

At reset

Note

, the correction data is cleared.

OPEN correction must be performed at the condition that test lead or xture

are connected to Ch1, Ch2, Ch3, and Ch4 terminals

, without DUT.

Key Lock Key

The Key Lock key toggles the disabling and enabling key input from the front panel. When the

key input is disabled, the

Note

The key lock state can be controlled also through the handler interface. When

Key Lock

annunciator(9) will be displayed.

the handler key lock function controls the key lock states, all the front-panel

keys are locked out including , so you can only cancel the key lock

out state from handler.

Function Reference 3-9

HP 4349B

Reset Key

The Reset key resets all instrument settings and correction data to the default values. The

HP 4349B can also be reset by sending HP-IB commands

:SYST:PRES

and

*RST

, with the same

results, except in a couple of cases. The following table lists the dierence among the results of

pressing the Reset key and sending the

:SYST:PRES

and

*RST

command, and also lists where

the settings are stored.

Data stored in the back-up memory is held for about 72 hours after powering OFF, The items

saved by the Save key or recalled by the Recall key are the same as those stored in the back-up

memory.

Data stored in the EEPROM is not aected by powering OFF.

Table 3-1. Reset Settings

Item Reset Key :

SYST:PRES1*

RST

Stored in

Test voltage value Ch1 0V

Test voltage value Ch2 0V

Test voltage value Ch3 0V

Test voltage value Ch4 0V

Measurement parameter R

Measurement range mode Auto

Measurement range (Auto)

Measurement time mode 30 ms

Averaging rate 1

Trigger source Internal

Trigger delay 0s

Contact check OFF

Limit data 0

Oset data 0

Comparator OFF

Comparator Limits MAX, MIN

Display mode Measurement Data

Correction ON

Correction data Cleared

Beeper ON

Beeper mode FAIL mode

Data transfer format ASCII

Power line frequency No eect

HP-IB Address No eect

OFF Back-up memory

OFF |

Back-up memory

EEPROM

Key lock N/A No eect OFF |

:INTT:CONT

OFF |

"indicates the value is the same as what's indicated to the left.

3-10 Function Reference

HP 4349B

Conguration Key

The Conguration key is used to set the beep mode and the power line frequency, and to run

the performance tests.

Beep

|Comparison results output to the beeper are classied as follows:

Off

Pass

Fail

no output to beeper.

beeps when comparison result are IN for all measurement channels.

beeps when the comparison result is HI, LO, or No-Contact for any channel.

(default)

In the beeper

operation error occurs. In the beeper

PassorFail

mode, the HP 4349B emits a beep whenever a system or

Off

mode, the error beep function is turned OFF.

The setting is saved in the EEPROM.

Line

|Available power line frequency selections are 50 Hz and 60 Hz.

The power line frequency setting is stored and does not change after reset or power-o.

Once you set it, you do not need to set the line frequency again as long as the power line

frequency remains the same.

Svc

|There are ve service functions:

KEY

HNDL

CSUM

RAM

EEPROM

test front-panel keys.

test the handler output signal.

run ROM check sum program.

read-write test RAM. After the test, the HP 4349B resets its setting.

test EEPROM. The data stored in EEPROM is not aected if no error detected.

If the error detected, the HP 4349B clears the data and restores the default

data.

Test

preforms the self-test which tests the HP 4349B's basic performance and displays the

results as the sum of the existing error codes

Item Result Error Code

1. Beeper beep once -

2. Display display all digits and segments -

3. RAM display error message if fail

4. EPROM display error message if fail

5. Calibration data (EEPROM) display error message if fail

6. User's data (EEPROM) display error message if fail

7. A/D converter display error message if fail

8. Backup RAM display error message if fail

During power-on test, the HP 4349B suspends operation if an error occurs

During power-on test, the HP 4349B takes default, and continues test.

The self-test is also executed at power-on. After the test, the HP 4349B's settings are not

aected.

Exit

return to measurement.

Function Reference 3-11

Rear Panel

External Trigger

HP 4349B

Figure 3-2. Rear Panel

When the HP 4349B is set to the external trigger mode

, the HP 4349B is triggered by an

active-low rising edge TTL pulse input. Figure 3-3 shows the specications required for the

TTL pulse.

Figure 3-3. Required External Trigger Pulse Specication

3-12 Function Reference

HP 4349B

LINE Fuse Holder

The HP 4349B's line fuse is selected depending on the LINE Voltage selection.

LINE Voltage Selector

The Line Voltage Selector is used to match the HP 4349B to the power line voltage being used.

The line voltage selections are as follows:

Table 3-2. Line Voltage selection

Voltage Selector Line Voltage Required Fuse

115V 100/120Vac(610%) UL/CSA type, Time delay 0.5A 250V

(HP part number 2110-0202)

230V 220/240Vac(610%) UL CSA type, Time delay 0.25A 250V

(HP part number 2110-0201)

Serial Number Plate

The serial number plate gives manufacturing information about the HP 4349B. F

Appendix A.

Power Cord Receptacle

The Power Cord Receptacle is used to plug in the power cord.

Power Cord

The HP 4349B is equipped with a three-conductor power cord that, when plugged into the

appropriate AC power receptacle, grounds the instrument. The oset pin on the power cord is

the safety ground.

or details, see

Function Reference 3-13

HP 4349B

Handler Interface

The handler interface is used to synchronize timing with an external handler.

Before using the handler interface, connect the pull-up resisters to enable output signals and

set the dip switch to select the voltage of the input signals. Refer to Appendix B for these

procedures.

Specications

Output signal: Negative true, open collector, opto-isolated

Decision Output:

Comparator High, In, Low

DUT and test electrode's contact failed.

Index: Analog measurement complete

Measurement complete: Full measurement complete

Alarm: Notication that a momentary power failure was detected.

Input Signal: Opto-isolated

Keylock: Front panel keyboard lockout

External Trigger: Pulse width1s

Figure 3-4. Pin Assignment For Handler Interface Connector

3-14 Function Reference

HP 4349B

Table 3-3. Contact Assignment for Comparator Function

Pin No. Signal Name

EXT DCV1

Description

External DC Voltage 1:

DC Voltage supply pins for DC isolated open collector outputs

(/HI1-4, /IN1-4, /LO1-4, /NO-CONTACT1-4). Maximum voltage input

is +24V, minimum +5V.

3 /HI1 This signal is asserted when the comparison result of Ch1 is High.

4 /IN1 This signal is asserted when the comparison result of Ch1 is In.

5 /LO1 This signal is asserted when the comparison result of Ch1 is Low.

6 /HI2 This signal is asserted when the comparison result of Ch2 is High.

7 /IN2 This signal is asserted when the comparison result of Ch2 is In.

8 /LO2 This signal is asserted when the comparison result of Ch2 is Low.

9 /HI3 This signal is asserted when the comparison result of Ch3 is High.

10 /IN3 This signal is asserted when the comparison result of Ch3 is In.

11 /LO3 This signal is asserted when the comparison result of Ch3 is Low.

12 /HI4 This signal is asserted, when the comparison result of Ch4 is High.

13 /IN4 This signal is asserted, when the comparison result of Ch4 is In.

14 /LO4 This signal is asserted, when the comparison result of Ch4 is Low

18 /KEY LOCK KEY LOCK:

When this line is asserted, all of the HP 4349B's front panel key

functions are disabled.

19 /EXT TRIG EXT TRIG:

The HP 4349B is triggered on the rising edge of a pulse applied to

EXT DCV2

this pin when the trigger mode is set to External

External DC voltage 2:

DC voltage supply pins for DC isolated inputs (/EXT TRIG, /KEY

LOCK) and DC isolated outputs (/ALARM, /INDEX, /EOM).

Maximum voltage input is +15V, minimum +5V.

+5 V

Internal voltage supply (max. output 0.1A):

Exceeding 0.1A will cause the internal voltage output and the

output signals to go to zero.

COM1

Common for EXT DCV1.

28 NO CONTACT1 This signal is asserted when the contact check failed at Ch1.

31 NO CONTACT2 This signal is asserted when the contact check failed at Ch2.

34 NO CONTACT3 This signal is asserted when the contact check failed at Ch3.

37 NO CONTACT4 This signal is asserted when the contact check failed at Ch4.

The / (slash) means that the signal is asserted when low.

If an error occurs and the HP 4349B stops operation, these lines retain the condition that existed just before the

error occurs.

If an error occurs and the HP 4349B stops operation, the HP 4349B will not trigger a measurement if it receives the

/EXT TRIG signal.

Function Reference 3-15

Table 3-3. Contact Assignment for Comparator Function (continued)

Pin No. Signal Name

42 /ALARM Alarm:

This signal is asserted when a power failure or the error (E11, E12,

E13, E14, E15, E20, or E313) occurs. The signal length is 200ms.

43 /INDEX Index:

This signal is asserted when an analog measurement is completed

and the HP 4349B is ready for the next DUT to be connected to the

INPUT terminals. The measurement data, however, is not valid

until /EOM is asserted.

44 /EOM End of Measurement:

This signal is asserted when the measurement data and comparison

results are valid.

COM2

GND

Common for EXT DCV2.

Ground tied to chassis.

HP 4349B

Description

Note

All the output signals are available only when the comparator function is ON.

3-16 Function Reference

HP 4349B

Note

Figure 3-5. Timing Diagram

This timing diagram is also applied when the contact check fails

. Because the

measurement is performed and the measurement result is output, even if the

contact check fails.

Function Reference 3-17

HP 4349B

HP-IB Interface

HP-IB Interface is used for remote control of the HP 4349B using the Hewlett-Packard

Interface Bus(

hp-ib

HP-IB is an instrument interface standard. This supports worldwide standards IEEE 488.1,

IEC-625, IEEE 488.2, and JIS-C1901. The HP-IB interface allows the instrument to be

controlled by an external computer that sends commands or instructions to and receives

data from the instrument via HP-IB. It also denes handshaking, addressing, and the general

protocol used for transmitting individual bytes of data between instruments and a controller.

With an HP-IB system, many dierent types of devices including instruments, computers,

plotters, and printers can be connected in parallel. When conguring an HP-IB system, the

following restrictions must be adhered to:

The length of cable between one device and another must be less than or equal to four

meters. The total length of cable in one bus system must be less than or equal to two meters

times the number of devices connected on the bus (the HP-IB controller counts as one

device) and the total length of cable must not exceed 20 meters.

A maximum of 15 devices can be connected on one bus system.

There are no restrictions on how the cables are connected together. However,itis

recommended that no more than four piggyback connectors be stacked together on any one

device. The resulting structure could exert enough force on the connector mounting to

damage it.

Every HP-IB device has a unique address for identication. The available HP-IB addresses are

the integer values 0 to 30. Any device on an HP-IB bus must have a unique address otherwise

there will be bus contention as devices with the same address try to use the bus at the same

time.

Every HP-IB device must be capable of performing one or more of the following interface

functions:

Talker

Listener

Controller

A talker sends device-dependant data when addressed to talk. In a HP-IB

system, there can be only one active talker at any given time

A listener receives device-dependant data when addressed to listen. In an

HP-IB system, there can be any number of active listener at any given time

A controller manages the operation of the bus and addresses talker's and

listener's. In an HP-IB system, there can be only one active controller at any

time.

Table 3-4 lists the HP 4349B's HP-IB capability and functions. These functions provide the

means for an instrument to receive, process, and transmit commands, data, and status over the

HP-IB bus.

Table 3-4. HP-IB Interface Capability

Code Function

SH1 Complete Source Handshake capability

AH1 Complete Acceptor Handshake capability

T5 Basic Talker; serial poll; unaddressed if MLA; Talk-Only

L4 Basic Listener; unaddressed if MTA; no Listen Only

SR1 Service Request capability

RL1 Remote/Local capability

DC1 Device Clear capability

DT1 Device Trigger capability

C0 No Controller capability

E1 Drivers are open-collector

3-18 Function Reference

HP 4349B

Theory of Operation

This section provides the HP 4349B's theory of operation.

Overall Measurement Theory

The HP 4349B measures the resistance of the Device Under Test (DUT) in the following manner.

Figure 3-6. Simplied Model of the HP 4349B

Figure 3-6 shows the simplied model of the HP 4349B measuring a DUT

is connected in series with test voltage sourceV, and ammeter A.Riis the HP 4349B's input

resistance (Ri=1k).

In the current measurement mode (the measurement parameter is I), the HP 4349B displays

the actual currentIfor the measurement result. For example,ifRis 100 k, andVis 1 V, the

measurement result will be 9.9A(

In the resistance measurement mode (the measurement parameter is R), the HP 4349B displays

the \derived" DUT resistance,R, which coincides with the actual DUT resistance. In other

words, if the ammeter measuresIwhen the source voltage isV, the HP 4349B displays the DUT

resistanceR, calculated using the following equation:

100k+1

. In Figure 3-6, a DUT

Function Reference 3-19

Overall Block Diagram

Figure 3-7 shows the overall block diagram of the HP 4349B.

HP 4349B

Figure 3-7. HP 4349A Overall Block Diagram

The HP 4349B doesn't have a test voltage source

be supplied for operation. The HP 4349B has four input channels

current owing through the DUT are input. The multiplexer switches four channels on a

single measurement trigger. Each V, which is proportional to the input I, is analog-to-digital

converted. The CPU calculates I from the converted data, then calculates the DUT's resistance

R, by dividing the measurement voltage by the measured current.

Note

The test voltage is data which must be input by the front-panel keys or through

HP-IB interface. The HP 4349B itself has neither voltage output nor voltage

measurement capability.

, and an external voltage source must

, form which the test

3-20 Function Reference

Remote Operation

Introduction

This chapter provides step-by-step instructions for controlling the HP 4349B using HP-IB

remote mode. The examples in this manual use the HP 9000 series 200 or 300 BASIC language.

This chapter covers the following:

Getting started

Setting up the HP 4349B

Triggering a measurement

Retrieving measurement data

Other features

If you have a problem

Refer to Chapter 5 for the description of each HP-IB command.

Note

This chapter is not intended to teach BASIC programming language or the

Standard Commands for Programmable Instruments (SCPI) programming, or to

discuss HP-IB theory; refer to the following documents which are better suited

for these tasks.

For more information concerning BASIC, refer to the manual set for the

BASIC version being used:

BASIC Programming Techniques

BASIC Language Reference

For more information concerning SCPI, refer to the following:

Beginner's Guide to SCPI

For more information concerning HP-IB operation, refer to the following:

BASIC Interfacing Techniques

Tutorial Description of the Hewlett-Packard Interface Bus

Condensed Description of the Hewlett-Packard Interface Bus

Remote Operation 4-1

HP 4349B

Getting Started

This section will teach you the basics of operating the HP 4349B in HP-IB remote mode (from

now on referred to as remote). This includes reading the HP-IB address, sending commands to

the HP 4349B, and retrieving data from the HP 4349B.

Input/Output Statements

The statements used to operate the HP 4349B in remote depend on the computer and the

programming language being used. In particular, you need to know the statements the language

uses to input and output information. For example, the input statements for the HP 9000 series

200 or 300 BASIC language are:

ENTERorTRANSFER

The output statement is:

OUTPUT

Read your computer manuals to nd out which statements you need to use.

Reading the HP-IB Address

Before you can operate the HP 4349B in remote

setting=17). To check the address, press

, you need to know its HP-IB address (factory

. A typical display is:

The displayed response is the device address. When sending a remote command, you append

this address to the HP-IB interface's select code (normally 7). F

or example, if the select code is

7 and the device address is 17, the appended combination is 717.

Every device on the HP-IB bus must have a unique address

.You can assign new HP-IB

addresses.

Sending a Remote Command

To send a remote command to the HP 4349B, combine the computer's output statement with

the HP-IB select code, the device address, and nally the HP 4349B command. For example,to

reset the HP 4349B, send:

OUTPUT 717;"*RST"

Notice that the display's

Rmt

annunciator(9) is ON. This means the HP 4349B is in the remote

mode.

4-2 Remote Operation

HP 4349B

Returning to Local Mode

When you press a key on the HP 4349B's keyboard while operating in remote, the HP 4349B

does not respond. This is because in remote (as indicated by the display's

the HP 4349B ignores all front panel inputs except the

key.To return the HP 4349B to

Rmt

annunciator)

the Local mode, press the

Query Commands

There are several commands in the alphabetic command directory that end with a question

mark. These commands are called query commands because each returns a response to a

particular question.

In addition to the queries described above, you can create others by appending a question mark

to most commands.

Getting Data from the HP 4349B

The HP 4349B can output readings and responses to query commands. As an example, have the

HP 4349B generate a response to a query command by sending:

OUTPUT 717;"*IDN?"

When you send a query from remote, the HP 4349B does not display the response as it did

when you executed the command from its front panel. Instead, the HP 4349B sends the

response to its output buer. The output buer is a register that holds a query response or

data for a single measurement until it is read by the computer or replaced by new information.

Use the computer's input statement to get the response from the output buer

.For example,

the following program reads the response (HP 4349B) and prints it.

10 ENTER 717;A$

20 PRINT A$

30 END

Remote Operation 4-3

HP 4349B

To Control the HP 4349B from an External Computer

Most measurements can be modeled the following simple three step sequence:

1. Set up the HP 4349B.

Typically, you begin the setup step by sending the reset command to set the instrument to

its default settings. Next, if you need values dierent from the default settings, change the

settings one by one as required.

2. Trigger the measurement.

The trigger may be generated automatically by steps taken in your setup commands, or you

can send an explicit trigger command.

3. Retrieve the measurement data

The following sections describes how to perform the tasks at each step.

Figure 4-1 shows a simple resistance measurement program.

! Step 1

OUTPUT 717;"*RST"

OUTPUT 717;":INIT:CONT ON"

OUTPUT 717;":SENS:FUNC 'RESI'"

OUTPUT 717;":SOUR:VOLT1 100"

OUTPUT 717;":SOUR:VOLT2 100"

OUTPUT 717;":SOUR:VOLT3 100"

OUTPUT 717;":SOUR:VOLT4 100"

Resetting

Initiating trigger system

Resistance Measurement

Ch 1 Test Voltage: 100 V

Ch 2 Test Voltage: 100 V

Ch 3 Test Voltage: 100 V

Ch 4 Test Voltage: 100 V

! Step 2

OUTPUT 717;":TRIG:SOUR BUS"

OUTPUT 717;"*TRG"

Trigger Source: BUS

Triggering

! Step 3

ENTER 717;S1,D1,S2,D2,S3,D3,S4,D4

Retrieving Readings

PRINT S1,D1,S2,D2,S3,D3,S4,D4

Figure 4-1. Simple Resistance Measurement Program Example

4-4 Remote Operation

HP 4349B

To Set Up the HP 4349B

To Reset the HP 4349B

The following commands reset the HP 4349B:

*RST

:SYST:PRES

*RST

Note

For example,

OUTPUT 717;"*RST"

To Set the LINE Frequency

The following command sets the LINE frequency:

:SYST:LFR

initiates the trigger system also.

For example, to set the LINE frequency to 50 Hz,

OUTPUT 717;"SYST:LFR 50"

ToPerform the OPEN Correction

The following commands perform the OPEN correction:

:SENS:CORR

:SENS:CORR:COLL

For example,

OUTPUT 717;":SENS:CORR:COLL OFFS"

To Select the Measurement Parameter

The following command selects the measurement parameters:

:SENS:FUNC

To select the resistance mode,

OUTPUT 717;":SENS:FUNC 'RESI'"

To select the current mode,

OUTPUT 717;":SENS:FUNC 'CURR'"

Remote Operation 4-5

To Enter Voltage Value

The following command enters the voltage value used to calculate the resistance value:

:SOUR:VOLT{1|2|3|4}

HP 4349B

{1|2|3|4}

channel number.

For example, to enter the voltage value for the channel 1 to 100 V,

OUTPUT 717;":SOUR:VOLT1 100"

To Select the Measurement Range

The following commands select the measurement range:

:SENS:CURR:RANG{1|2|3|4}

:SENS:CURR:RANG{1|2|3|4}:AUTO

For example, to select the auto range,

OUTPUT 717;":SENS:CURR:RANG1:AUTO ON"

For example, to set the 10A range,

OUTPUT 717;":SENS:CURR:RANG1:AUTO OFF"

OUTPUT 717;":SENS:CURR:RANG1 1E-5"

To Set the Measurement Time Mode

The following command sets the measurement time:

:SENS:CURR:APER

means that one of the four numbers is attached to the root mnemonic to give the

To set the measurement time to 10 ms,

OUTPUT 717;":SENS:CURR:APER 0.01"

To set the measurement time to 30 ms,

OUTPUT 717;":SENS:CURR:APER 0.03"

To set the measurement time to 100 ms,

OUTPUT 717;":SENS:CURR:APER 0.1"

To set the measurement time to 400 ms,

OUTPUT 717;":SENS:CURR:APER 0.4"

4-6 Remote Operation

HP 4349B

To Set the Averaging rate

The following commands set the averaging rate:

:SENS:AVER

:SENS:AVER:COUN

For example, to set the averaging rate to 4,

OUTPUT 717;":SENS:AVER:COUN 4"

To Set the Trigger Delay time

The following command sets the trigger delay time:

:TRIG:DEL

For example, to set the trigger delay time to 10 ms,

OUTPUT 717;":TRIG:DEL 1E-2"

ToPerform the Contact Check

The following command performs the contact check function:

:SENS:RES:CONT:VER

For example,

OUTPUT 717;":SENS:RES:CONT:VER ON"

To Set the Beeper Mode

The following commands set the beeper mode:

:SYST:BEEP

:SYST:BEEP:STAT

:CALC{1|2|3|4}:LIM:BEEP

:CALC{1|2|3|4}:LIM:BEEP:COND

For example, to set the beeper mode to emit a beep when comparison result is PASS,

OUTPUT 717;":CALC1:LIM:BEEP:COND PASS"

To Lock Out the Front Panel Keys

The following command locks out the front panel keys:

:SYST:KLOC

For example,

OUTPUT 717;":SYST:KLOC ON"

Remote Operation 4-7

HP 4349B

To Use the Comparator Function

The following commands operate the comparator function:

CALC{1|2|3|4}:LIM:LOW

CALC{1|2|3|4}:LIM:LOW:STAT

CALC{1|2|3|4}:LIM:UPP

CALC{1|2|3|4}:LIM:UPP:STAT

CALC{1|2|3|4}:LIM:STAT

CALC{1|2|3|4}:LIM:BEEP

CALC{1|2|3|4}:LIM:BEEP:COND

CALC{1|2|3|4}:LIM:CLE

CALC{1|2|3|4}:LIM:FAIL?

CALC{1|2|3|4}:PATH?

DISP:ENAB

DISP:WIND{1|2|3|4}

DISP:WIND{1|2|3|4}:TEXT1:PAGE

For example, to set the limit values for channels 1 to 4, and to enable the comparator function,

OUTPUT 717;":CALC1:LIM:LOW 1E12;UPP 1E13"

OUTPUT 717;":CALC2:LIM:LOW 1E12;UPP 1E13"

OUTPUT 717;":CALC3:LIM:LOW 1E12;UPP 1E13"

OUTPUT 717;":CALC4:LIM:LOW 1E12;UPP 1E13"

OUTPUT 717;":CALC1:LIM:STAT ON"

OUTPUT 717;":FETC?"

ENTER 717;S1,D1,C1,S2,D2,C2,S3,D3,C3,S4,D4,C4

ToWait Until Previously Sent Commands are Completed

The following commands make the HP 4349B wait until the previously sent commands are

completed.

*OPC

*OPC?

*WAI

For example, to wait until the OPEN correction is completed,

OUTPUT 717;":SENS:CORR:COLL OFF"

OUTPUT 717;"*OPC?"

Perform OPEN Correction

Wait for OPEN Correction completion

ENTER 717;A

4-8 Remote Operation

HP 4349B

To Get the Current Instrument Settings

The following command gets the current instrument settings.

*LRN?

For example,

DIM A$[1000]

OUTPUT 717;"*LRN?"

ENTER 717;A$

PRINT A$

To Save and Recall Instrument Settings

The following commands save and recall instrument settings.

*SAV

*RCL

To save the instrument settings to register no.1,

OUTPUT 717;"*SAV 1"

To recall the instrument settings from register no.1,

OUTPUT 717;"*RCL 1"

Remote Operation 4-9

HP 4349B

To Trigger a Measurement

The following commands are used to trigger measurements from an external controller and

to handle the HP 4349B's trigger system. Refer to \Trigger System" in Chapter 5 for the

information about the HP 4349B's trigger system.

:TRIG

:TRIG:SOUR

:INIT

:INIT:CONT

:ABOR

*TRG

:FETC?

Group Execution Trigger (GET)

For example, to set the Internal trigger mode:

OUTPUT 717;":TRIG:SOUR INT"

OUTPUT 717;":INIT:CONT ON"

LOOP

OUTPUT 717;":FETC?"

ENTER 717;S1,D1,S2,D2,S3,D3,S4,D4

PRINT S1,D1,S2,D2,S3,D3,S4,D4

END LOOP

For example, to set to the Manual trigger mode:

OUTPUT 717;":STAT:OPER:ENAB 16"

OUTPUT 717;"*SRE 128"

ON INTR 7 GOSUB Data_available

ENABLE INTR 7;2

OUTPUT 717;":TRIG:SOUR MAN"

OUTPUT 717;":ININ:CONT ON"

LOOP

LOCAL 717 ! Press the Trig key.

END LOOP

Data_available: !

OUTPUT 717;":FETC?"

ENTER 717;S1,D1,S2,D2,S3,D3,S4,D4

PRINT S1,D1,S2,D2,S3,D3,S4,D4

A=SPOLL(717)

OUTPUT 717;":STAT:OPER?"

ENTER 717;A

ENABLE 7;2

RETURN

4-10 Remote Operation

HP 4349B

For example, to set to the External trigger mode:

OUTPUT 717;":STAT:OPER:ENAB 16"

OUTPUT 717;"*SRE 128"

ON INTR 7 GOSUB Data_available

ENABLE INTR 7;2

OUTPUT 717;":TRIG:SOUR EXT"

OUTPUT 717;":ININ:CONT ON"

LOOP ! Apply trigger signals from the external trigger source.

END LOOP

Data_available: !

OUTPUT 717;":FETC?"

ENTER 717;S1,D1,S2,D2,S3,D3,S4,D4

PRINT S1,D1,S2,D2,S3,D3,S4,D4

A=SPOLL(717)

OUTPUT 717;":STAT:OPER?"

ENTER 717;A

ENABLE 7;2

RETURN

For example, to set to the Bus trigger mode:

Using the

*TRG

IEEE 488.2 Common Command,

OUTPUT 717;":TRIG:SOUR BUS"

OUTPUT 717;"*TRG"

ENTER 717;S1,D1,S2,D2,S3,D3,S4,D4

Using the Group Execution Trigger (GET):

OUTPUT 717;":TRIG:SOUR BUS"

TRIGGER 717

ENTER 717;S1,D1,S2,D2,S3,D3,S4,D4

For example, triggering a measurement regardless of the trigger source:

OUTPUT 717;":TRIG"

OUTPUT 717;":FETC?"

ENTER 717;S1,D1,S2,D2,S3,D3,S4,D4

Remote Operation 4-11

HP 4349B

To Retrieve Data Eciently

The basic procedure to retrieve measurement data is described in \To Trigger a Measurement".

This section describes how to retrieve the measurement data eciently.

To Transfer Data Using the Real Data Format

The following command transfers data faster by using the real data format to transfer the data:

:FORM REAL

For example,

ASSIGN @Binary TO 717;FORMAT OFF

OUTPUT 717;":FORM REAL"

OUTPUT 717;":FETC?"

ENTER @Binary USING "#,4A";A$

ENTER @Binary;S1,D1,S2,D2,S3,D3,S4,D4

ENTER @Binary USING "#,A";A$

PRINT S,D1,D2

To Use Data Buer

The following commands use the data buer function:

:DATA?

:DATA:POIN

:DATA:FEED

:DATA:FEED:CONT

For example,

OPTION BASE 1

DIM D(600)

OUTPUT 717;":TRIG:SOUR BUS"

OUTPUT 717;":DATA:POIN DBUF,50"

OUTPUT 717;":DATA:FEED DBUF,'SENS'"

OUTPUT 717;":DATA:FEED:CONT DBUF,ALW"

FOR I=1 TO 50

OUTPUT 717;":TRIG"

NEXT I

OUTPUT 717;":DATA? DBUF"

ENTER 717;D(*)

PRINT D(*)

4-12 Remote Operation

HP 4349B

Other Features

To test the HP 4349B

The following command runs the HP 4349B's internal self test:

*TST?

For example,

OUTPUT 717;"*TST?"

ENTER 717;A

IF A<>0 THEN PRINT "Self Test: Error"

To Report the Instrument's Status

The following commands report the instrument's status:

*CLS

*ESE

*ESE?

*ESR?

*SRE

*SRE?

*STB?

:STAT:OPER?

:STAT:OPER:COND?

:STAT:OPER:ENAB

:STAT:QUES?

:STAT:QUES:COND?

:STAT:QUES:ENAB

:STAT:PRES

HP BASIC

SPOLL

command

For example, to generate a service request whenever an error is placed in the error queue

OUTPUT 717;"*ESE 52; *SRE 32"

For example, to detect the measurement completion:

OUTPUT 717;":SYST:OPER:ENAB 16"

OUTPUT 717;"*SRE 128"

REPEAT

A=SPOLL(717)

Enable Measurement bit of Operation Status Register

Enable Operation Status Register Summary bit

Wait until Operation Status Register Summary bit

is set

UNTIL BIT(A,7)

Remote Operation 4-13

For example, to generate an interrupt when an error occurs in the HP 4349B:

DIM Err$[50]

OUTPUT 717;"*CLS"

OUTPUT 717;"*ESE 48"

OUTPUT 717;"*SRE 32"

Clears status byte register

Sets Command Error Bit and Execution Error Bit

Sets Standard Event Status Register Summary Bit

ON INTR 7 GOSUB Err_report

ENABLE INTR 7;2

Tells where to branch to when interrupted

Enable an interrupt from HP-IB interface

LOOP

END LOOP

STOP

Err_report:!

Stat=SPOLL(717)

OUTPUT 717;"*ESR?"

Clears the SRQ bit of the Status Byte

Asks contents of the Standard Event Status Register

ENTER 717;Estat

PRINT "Syntax Error detected."

OUTPUT 717;":SYST:ERR?"

Asks to output error number and message

ENTER 717;Err,Err$

PRINT Err,Err$

ENABLE INTR 7

RETURN

END

HP 4349B

4-14 Remote Operation

HP 4349B

If You Have a Problem

Check all HP-IB addresses and connections; most HP-IB problems are caused by an incorrect

address and bad or loose HP-IB cables.

If the HP 4349B Hangs Up When You Send the

Send the device clear command to the HP 4349B:

For example,

CLEAR(717)

ABORt

Command

Remote Operation 4-15

HP-IB Reference

Introduction

This chapter provides reference information for the HP-IB commands used to control the

HP 4349B in the HP-IB remote mode.

HP-IB Commands

Status Reporting Structure

Trigger System

Data Transfer Format

The HP 4349B can be operated using the Hewlett-Packard Interface Bus(

commands correspond to the Standard Commands for Programmable Instruments(

hp-ib

). HP-IB

scpi

). SCPI is

the instrument command language for controlling instrument that goes beyond IEEE 488.2 to

address a wide variety of instrument functions in a standard manner

HP-IB Commands

HP-IB commands can be separated into two groups: common commands and subsystem

commands.

Common Commands

Common commands are generally not measurement related, but are used to manage macros

status registers, synchronization, and data storage. All common commands begin with an

asterisk. Common commands are dened in the IEEE 488.2 standard.

Common Commands

*CLS

*ESE

*ESE?

*ESR?

*IDN?

*LRN?

numeric value

*OPC

*OPC?

*OPT?

*RCL

*RST

*SAV

numeric value

*SRE

numeric value

*SRE?

*STB?

*TRG

*TST?

*WAI

Subsystem Commands

Subsystem commands include all measurement functions and some general purpose functions.

Each subsystem is a set of commands that roughly corresponds to a functional block inside the

instrument. For example, the SOURce subsystem contains commands for signal generation,

while the STATus subsystem contains commands for accessing status registers.

Subsystem commands have a hierarchical structure, called a

command tree

, which consists of

several key words separated by a colon between each word.

HP-IB Reference 5-1

HP 4349B

Subsystem Commands

Command Parameter Note

ABORt no query

CALCulatef1j2j3j4

:LIMit

:BEEPer

:CONDition

[:STATe]

FAILjPASS

Boolean

:CLEar no query

:FAIL? query only

:LOWer

[:DATA]

:STATe

numeric value

Boolean

:UPPer

[:DATA]

:STATe

numeric value

Boolean

:PATH?

DATA

[:DATA]? DBUF query only

:FEED DBUF,<data handle

:CONTrol DBUF,fALWaysjNEVer

:POINts DBUF,<numeric value

DISPlay

:ENABle

:WINDowf1j2j3j4

[:STATe]

Boolean

:TEXT1

:DIGit

:PAGE

f3j4j5g

f1j2g

:TEXT2

:PAGE

f1j2j3g

FETCh? query only

FORMat

[:DATA]

ASCiijREAL[,64]

INITiate

:CONTinuous

Boolean

[:IMMediate] no query

[SENSe]

:AVERage

:COUNt

[:STATe]

numeric value

Boolean

:CORRection

:COLLect

[:ACQuire] OFFSet no query

:DATAf1j2j3j4g?

[:STATe]

OFFSetjSCAPacitance

Boolean

no query

5-2 HP-IB Reference

HP 4349B

Command Parameter Note

[SENSe] (continued)

:CURRent

:APERture

:RANGef1j2j3j4

:FUNCtion

:CONTact

:DATAf1j2j3j4g? query only

:LIMitf1j2j3j4g? query only

:OFFSetf1j2j3j4

:VERify

SOURce

:VOLTagef1j2j3j4

[:LEVel]

STATus

:OPERation

:CONDition? query only

:ENABle

[:EVENt]? query only

:PRESet

:QUEStionable

:CONDition? query only

:ENABle

[:EVENt]? query only

SYSTem

:BEEPer

[:IMMediate]

:STATe

:ERRor? query only

:KLOCk

:LFRequency

:PRESet

:VERSion? query only

TRIGger

:DELay

[:IMMediate] no query

:SOURce

:AUTO

[:UPPer]

[:IMMediate]

[:AMPLitude]

Subsystem Commands (continued)

numeric value>[MSjS]

Boolean

numeric value>[PAjNAjUAjMAjA]

sensor function

numeric value>[PFjF]

Boolean

numeric value

Boolean

numeric value

numeric value>[MSjS]

BUSjEXTernaljINTernaljMANual

HP-IB Reference 5-3

Subsystem Command Tree

HP 4349B

Top of the subsystem command tree is called the

the low-level commands, you must specify a particular

le directory path. After Power ON or after an

root command

path

*RST

command, the current path is set to the

, or simply the

root

just like you would specify a DOS

.To reach

root. The path settings are changed as follows:

Message Terminator

A message terminator, such as

character, sets the current

path to the root.

Colon (:)

When a colon is placed between two command mnemonics, the colon

moves the current path down one level on the command tree. When

the colon is the rst character of a command, it species the following

command mnemonic is a root-level command.

Semicolon (;)

A semicolon separates two commands in the same message without

changing the current path.

Common commands, such as

*RST

, are not part of any subsystem. The HP 4349B interprets

them in the same way, regardless of the current path setting.

Figure 5-1 shows examples of how to use the colon and semicolon to navigate eciently

through the command tree.

Figure 5-1. Proper Use of the Colon and Semicolon

In Figure 5-1, notice how proper use of the semicolon can save typing. Sending this message:

:AA:BB:EE; FF; GG

Is the same as sending these three messages:

:AA:BB:EE

:AA:BB:FF

:AA:BB:GG

5-4 HP-IB Reference

HP 4349B

Program Message Syntax

This section provides an example of constructing of a SCPI program message. A program

message is the message sent from a computer to an instrument. Program messages consist of

commands combined with appropriate punctuation and program message terminators.

Case

Letter case (upper and lower) is ignored.

Program Message Terminator

A program message must end with one of the three

,or

interface at the same time the preceding data byte is sent. For example,HPBASIC

program message terminators

means that EOI is asserted on the HP-IB

OUTPUT

statement automatically sends an message terminator after the last data byte is sent. If you are

using a PC, you can usually congure your system to send whatever terminator you specify.

Subsystem Command Syntax

Subsystem command consists of the level mnemonics which are separated with colons

example, command form of

APERture

under [

SENSe]:CURRent

subsystem becomes as follows:

.For

:CURRent:APERture

Abbreviated mnemonics are also available for command headers. In the above example,

:CURR:APER

is available.

Common Command Syntax

Common commands do not have a hierarchical structure

. They are just sent as follows:

*CLS

Parameters

There must be a

<space>

between the last command mnemonic and the rst parameter in a

subsystem command.

:CURR:APERtparameter

means a space (ASCII character (decimal 32)) is inserted here.

If you send more than one parameter with a single command, each parameter must be

separated by a comma. For example,

:POINts

command of

DATA

subsystem is followed by two

parameters as follows.

:DATA:POINtparameter,parameter

HP-IB Reference 5-5

HP 4349B

Parameter Types

SCPI denes dierent data formats for use in program messages and query responses. The

HP 4349B accepts commands and parameters in various formats and responds to a particular

query in a predened and rigid format. Each command reference contains information about

available parameter types for the individual commands.

numeric value>is used in both common commands and subsystem commands.

numeric value>represents numeric parameter as followings:

100

100.

1.23,+235

4.56et3

7.89E001

no decimal point required

fractional digits optional

leading signs allowed

space allowed after e in exponentials

use either E or e in exponentials

digits left of decimal point optional

HP 4349B settings programmed with a numeric parameter can assume a nite number of

values, so the HP 4349B automatically rounds the parameter.For example, the HP 4349B has

programmable line frequencies of 50 or 60 Hz. If you specied

50.1

, it would be rounded o

to50.

The subsystem commands can use extended numeric parameters

parameters accept all numeric parameter values and other special values

MAXimum,MINimumorUP,DOWN

. The special values available for a command are described in

. Extended numeric

, for instance,

the each command's reference description.

Query response to<numeric value>is always a numeric value.

Boolean>represents a single binary condition that is either ON or OFF

.<Boolean>allows

the following parameters:

ON,OFF

1,0

sensor function>and<data handle>are string parameters which contain ASCII

In a program message

In a program message and query response

characters. A string must begin with a single quote(ASCII 39 decimal) or a double quote

(ASCII 34 decimal) and end with the same character

. The quote to mark the beginning and

end of the string is called the delimiter.You can include the delimiter as part of the string by

typing it twice without any characters in between.

Example of<sensor function>"CURR"

10 OUTPUT @Meter;":FUNC 'CURR'"

20 OUTPUT @Meter;":FUNC ""CURR"""

using single quote

using double quote

Query response is the string between the double quote delimiters

5-6 HP-IB Reference

Agilent 4349B Operations Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents