Agilent Technologies 34401A Bedienungsanleitung

Agilent Technologies

Agilent 34401A

6 ½ Digit Multimeter

User’s Guide

ii 34401A User’s Guide

Notices

No part of this manual may be reproduced in

any form or by any means (including elec-

tronic storage and retrieval or translation

into a foreign language) without prior agree-

ment and written consent from Agilent

Technologies, Inc. as governed by United

States and international copyright laws.

Manual Part Number

34401-90004

Edition

Seventh Edition. August 2007

Printed in Malaysia

Agilent Technologies, Inc.

3501 Stevens Creek Blvd.

Santa Clara, CA 95052 USA

Microsoft® and Windows® are U.S. regis-

tered trademarks of Microsoft Corporation.

Software Revision

This guide is valid for the firmware that was

installed in the instrument at the time of

manufacture. However, upgrading the firm-

ware may add or change product features.

For the latest firmware and documentation,

go to the product page at:

www.agilent.com/find/34401A

Warranty

The material contained in this docu-

ment is provided “as is,” and is sub-

ject to being changed, without notice,

in future editions. Further, to the max-

imum extent permitted by applicable

law, Agilent disclaims all warranties,

either express or implied, with regard

to this manual and any information

contained herein, including but not

limited to the implied warranties of

merchantability and fitness for a par-

ticular purpose. Agilent shall not be

liable for errors or for incidental or

consequential damages in connec-

tion with the furnishing, use, or per-

formance of this document or of any

information contained herein. Should

Agilent and the user have a separate

written agreement with warranty

terms covering the material in this

document that conflict with these

terms, the warranty terms in the sep-

arate agreement shall control.

Technology Licenses

The hardware and/or software described in

this document are furnished under a license

and may be used or copied only in accor-

dance with the terms of such license.

Restricted Rights Legend

U.S. Government Restricted Rights. Soft-

ware and technical data rights granted to

the federal government include only those

rights customarily provided to end user cus-

tomers. Agilent provides this customary

commercial license in Software and techni-

cal data pursuant to FAR 12.211 (Technical

Data) and 12.212 (Computer Software) and,

for the Department of Defense, DFARS

252.227-7015 (Technical Data - Commercial

Items) and DFARS 227.7202-3 (Rights in

Commercial Computer Software or Com-

puter Software Documentation).

Safety Notices

CAUTION

A CAUTION notice denotes a haz-

ard. It calls attention to an operat-

ing procedure, practice, or the like

that, if not correctly performed or

adhered to, could result in damage

to the product or loss of important

data. Do not proceed beyond a

CAUTION notice until the indicated

conditions are fully understood and

met.

WARNING

A WARNING notice denotes a

hazard. It calls attention to an

operating procedure, practice, or

the like that, if not correctly per-

formed or adhered to, could result

in personal injury or death. Do not

proceed beyond a WARNING

notice until the indicated condi-

tions are fully understood and

met.

34401A User’s Guide iii

Safety Information

General

Do not use this product in any manner not

specified by the manufacturer. The protec-

tive features of this product may be

impaired if it is used in a manner not speci-

fied in the operation instructions.

Do not install substitute parts or perform

any unauthorized modification to the prod-

uct. Return the product to an Agilent Tech-

nologies Sales and Service Office for service

and repair to ensure that safety features are

maintained.

Ground the Instrument

If your product is provided with a ground-

ing-type power plug, the instrument chassis

and cover must be connected to an electri-

cal ground to minimize shock hazard. The

ground pin must be firmly connected to an

electrical ground (safety ground) terminal at

the power outlet. Any interruption of the

protective (grounding) conductor or discon-

nection of the protective earth terminal will

cause a potential shock hazard that could

result in personal injury.

Cleaning

Clean the outside of the instrument with a

soft, lint-free, slightly dampened cloth. Do

not use detergent or chemical solvents.

Safety Symbols WARNING

Main Power and Test Input Dis-

connect: Unplug instrument from

wall outlet, remove power cord,

and remove all probes from all

terminals before servicing. Only

qualified, service-trained person-

nel should remove the cover from

the instrument.

WARNING

Line and Current Protection

Fuses: For continued protection

against fire, replace the line fuse

and the current-protection fuse

only with fuses of the specified

type and rating.

WARNING

Front/Rear Switch: Do not

change the position of the

Front/Rear switch on the front

panel while signals are present on

either the front or rear set of ter-

minals. The switch is not intended

as an active multiplexer. Switch-

ing while high voltages or cur-

rents are present may cause

instrument damage and lead to

the risk of electric shock.

Earth Ground

Chassis Ground

Risk of electric shock

Refer to manual for addi-

tional safety information

Alternating Current

On supply

Off supply

‘In’ position of bi-stable push

switch

‘Out’ position of bi-stable

push switch

CAT II (300V)

IEC Measurement Category II.

Inputs may be connected to

mains (up to 300 VAC) under

Category II overvoltage condi-

tions.

iv 34401A User’s Guide

WARNING

IEC Measurement Category II. The

HI and LO input terminals may be

connected to mains in IEC Cate-

gory II installations for line volt-

ages up to 300 VAC. To avoid the

danger of electric shock, do not

connect the inputs to mains for

line voltages above 300 VAC. See

"IEC Measurement Category II

Overvoltage Protection" on the

following page for further infor-

mation.

WARNING

Protection Limits: To avoid instru-

ment damage and the risk of elec-

tric shock, do not exceed any of

the Protection Limits defined in

the following section.

Protection Limits

The Agilent 34401A Digital Multimeter pro-

vides protection circuitry to prevent damage

to the instrument and to protect against the

danger of electric shock, provided the Pro-

tection Limits are not exceeded. To ensure

safe operation of the instrument, do not

exceed the Protection Limits shown on the

front and rear panel, and defined as follows:

Note: The front-panel terminals are shown

above. The rear-panel terminals are identi-

cal. The Front/Rear switch selects the ter-

minal set to be used. Do not operate this

switch while signals are present on the

front or rear terminals. The current-protec-

tion fuse is on the rear panel.

Input Terminal Protection

Limits

Protection Limits are defined for the input

terminals:

Main Input (HI and LO) Terminals. The HI

and LO input terminals are used for voltage,

resistance, frequency (period), and diode

test measurements. Two Protection Limits

are defined for these terminals:

HI to LO Protection Limit. The Protection

Limit from HI to LO (Input terminals) is

1000 VDC or 750 VAC, which is also the

maximum voltage measurement. This

limit can also be expressed as 1000 Vpk

maximum.

LO to Ground Protection Limit. The LO

input terminal can safely "float" a maxi-

mum of 500 Vpk relative to ground.

As is implied by the above limits, the Protec-

tion Limit for the HI input terminal is a maxi-

mum of 1500 Vpk relative to ground.

Current Input Terminal. The current input

("I") terminal has a Protection Limit of 3A

(rms) maximum current flowing from the LO

input terminal. Note that the current input

terminal will be at approximately the same

voltage as the LO terminal.

Note: The current-protection circuitry

includes a fuse on the rear panel. To main-

tain protection, replace this fuse only with a

fuse of the specified type and rating.

Sense Terminal Protection

Limits

The HI and LO sense terminals are used

only for four-wire resistance and tempera-

ture measurements ("Ω 4W"). The Protec-

tion Limit is 200 Vpk for all of the terminal

pairings:

LO sense to LO input

HI sense to LO input

HI sense to LO sense

Note: The 200 Vpk limit on the sense termi-

nals is the Protection Limit. Operational

voltages in resistance measurements are

much lower — less than 10 V in normal

operation.

IEC Measurement Category II

Overvoltage Protection

To protect against the danger of electric

shock, the Agilent 34401A Digital Multime-

ter provides overvoltage protection for

line-voltage mains connections meeting

both of the following conditions:

The HI and LO input terminals are con-

nected to the mains under Measurement

Category II conditions, defined below,

and

The mains are limited to a maximum line

voltage of 300 VAC.

34401A User’s Guide v

IEC Measurement Category II includes elec-

trical devices connected to mains at an out-

let on a branch circuit. Such devices include

most small appliances, test equipment, and

other devices that plug into a branch outlet

or socket. The 34401A may be used to make

measurements with the HI and LO inputs

connected to mains in such devices, or to

the branch outlet itself (up to 300 VAC).

However, the 34401A may not be used with

its HI and LO inputs connected to mains in

permanently installed electrical devices

such as the main circuit-breaker panel,

sub-panel disconnect boxes, or permanently

wired motors. Such devices and circuits are

subject to overvoltages that may exceed the

protection limits of the 34401A.

Note: Voltages above 300 VAC may be mea-

sured only in circuits that are isolated from

mains. However, transient overvoltages are

also present on circuits that are isolated

from mains. The Agilent 34401A are

designed to safely withstand occasional

transient overvoltages up to 2500 Vpk. Do

not use this equipment to measure circuits

where transient overvoltages could exceed

this level.

Additional Notices

Waste Electrical and

Electronic Equipment (WEEE)

Directive 2002/96/EC

This product complies with the WEEE Direc-

tive (2002/96/EC) marking requirement.

The affixed product label (see below) indi-

cates that you must not discard this electri-

cal/electronic product in domestic

household waste.

Product Category: With reference to the

equipment types in the WEEE directive

Annex 1, this product is classified as a

"Monitoring and Control instrumentation"

product.

Do not dispose in domestic household

waste.

To return unwanted products, contact your

local Agilent office, or see

www.agilent.com/environment/product

for more information.

Agilent 34138A Test Lead Set

The Agilent 34401A is compatible with the

Agilent 34138A Test Lead Set described

below.

Tes t Le ad R a tin g s

Test Leads - 1000V, 15A

Fine Tip Probe Attachments - 300V, 3A

Mini Grabber Attachment - 300V, 3A

SMT Grabber Attachments - 300V, 3A

Operation

The Fine Tip, Mini Grabber, and SMT Grab-

ber attachments plug onto the probe end of

the Test Leads.

Maintenance

If any portion of the Test Lead Set is worn or

damaged, do not use. Replace with a new

Agilent 34138A Test Lead Set.

WARNING

If the Test Lead Set is used in a

manner not specified by Agilent

Technologies, the protection pro-

vided by the Test Lead Set may be

impaired. Also, do not use a dam-

aged or worn Test Lead Set.

Instrument damage or personal

injury may result.

DECLARATION OF CONFORMITY

According to ISO/IEC Guide 22 and CEN/CENELEC EN 45014

Revision: B.01 Issue Date: 18 July 2001 Document 34401A.DOC

Manufacturer’s Name: Agilent Technologies, Incorporated

Manufacturer’s Address: 815 – 14th St. SW

Loveland, Colorado 80537

USA

Declares, that the product

Product Name: Multimeter

Model Number: 34401A

Product Options: This declaration covers all options of the above product(s).

Conforms with the following European Directives:

The product herewith complies with the requirements of the Low Voltage Directive 73/23/EEC and the EMC Directive 89/336/EEC

(including 93/68/EEC) and carries the CE Marking accordingly.

Conforms with the following product standards:

EMC Standard

IEC 61326-1:1997+A1:1998 / EN 61326-1:1997+A1:1998

CISPR 11:1990 / EN 55011:1991

IEC 61000-4-2:1995+A1:1998 / EN 61000-4-2:1995

IEC 61000-4-3:1995 / EN 61000-4-3:1995

IEC 61000-4-4:1995 / EN 61000-4-4:1995

IEC 61000-4-5:1995 / EN 61000-4-5:1995

IEC 61000-4-6:1996 / EN 61000-4-6:1996

IEC 61000-4-11:1994 / EN 61000-4-11:1994

Canada: ICES-001:1998

Australia/New Zealand: AS/NZS 2064.1

Limit

Group 1 Class A

4kV CD, 8kV AD

3 V/m, 80-1000 MHz

0.5kV signal lines, 1kV power lines

0.5 kV line-line, 1 kV line-ground

3V, 0.15-80 MHz

Dips: 30% 10ms; 60% 100ms

Interrupt > 95%@5000ms

The product was tested in a typical configuration with Agilent Technologies test systems.

Safety IEC 61010-1:1990+A1:1992+A2:1995 / EN 61010-1:1993+A2:1995

Canada: CSA C22.2 No. 1010.1:1992

UL 3111-1: 1994

18 July 2001

Date Ray Corson

Product Regulations Program Manager

For further information, please contact your local Agilent Technologies sales office, agent or distributor.

Authorized EU-representative: Agilent Technologies Deutschland GmbH, Herrenberger Straβe 130, D 71034 Böblingen, Germany

Note: Unless otherwise indicated, this manual applies to all Serial Numbers.

The Agilent Technologies 34401A is a 61⁄2-digit, high-performance

digital multimeter. Its combination of bench-top and system features

makes this multimeter a versatile solution for your measurement needs

now and in the future.

Convenient Bench-Top Features

•Highly visible vacuum-fluorescent display

•Built-in math operations

•Continuity and diode test functions

•Hands-free, Reading Hold feature

•Portable, ruggedized case with non-skid feet

Flexible System Features

•GPIB (IEEE-488) interface and RS-232 interface

•Standard programming languages: SCPI, Agilent 3478A, and

Fluke 8840

•Reading rates up to 1000 readings per second

•Storage for up to 512 readings

•Limit testing with pass/fail signals

•Optional 34812A BenchLink/Meter Software for Microsoft®

WindowsTM

Agilent 34401A

Multimeter

Page 1 (User’s Guide)

The Front Panel at a Glance

1Measurement Function keys

2Math Operation keys

3Single Trigger / Autotrigger / Reading Hold key

4Shift / Local key

5Front / Rear Input Terminal Switch

6Range / Number of Digits Displayed keys

7Menu Operation keys

The Front-Panel Menu at a Glance

A: MEASurement MENU

1: AC FILTER > 2: CONTINUITY > 3: INPUT R > 4: RATIO FUNC > 5: RESOLUTION

F: CALibration MENU*

1: SECURED > [ 1: UNSECURED ] > [ 2: CALIBRATE ] > 3: CAL COUNT > 4: MESSAGE

*The commands enclosed in square brackets ( [ ] ) are “hidden” unless the multimeter

is UNSECURED for calibration.

B: MATH MENU

1: MIN-MAX > 2: NULL VALUE > 3: dB REL > 4: dBm REF R > 5: LIMIT TEST > 6: HIGH LIMIT > 7: LOW LIMIT

C: TRIGger MENU

1: READ HOLD > 2: TRIG DELAY > 3: N SAMPLES

D: SYStem MENU

1: RDGS STORE > 2: SAVED RDGS > 3: ERROR > 4: TEST > 5: DISPLAY > 6: BEEP > 7: COMMA > 8: REVISION

E: Input / Output MENU

1: GPIB ADDR > 2: INTERFACE > 3: BAUD RATE > 4: PARITY > 5: LANGUAGE

The menu is organized in a top-down tree structure with three levels.

Display Annunciators

Adrs

Rmt

Man

Trig

Hold

Mem

Ratio

Math

ERROR

Rear

Shift

Turns on during a measurement.

Multimeter is addressed to listen or talk over the GPIB interface.

Multimeter is in remote mode (remote interface).

Multimeter is using manual ranging (autorange is disabled).

Multimeter is waiting for a single trigger or external trigger.

Reading Hold is enabled.

Turns on when reading memory is enabled.

Multimeter is in dcv:dcv ratio function.

A math operation is enabled (null, min-max, dB, dBm, or limit test).

Hardware or remote interface command errors are detected.

Rear input terminals are selected.

“Shift” key has been pressed. Press “Shift” again to turn off.

Multimeter is in 4-wire ohms function.

Multimeter is in continuity test function.

Multimeter is in diode test function.

To review the display annunciators, hold down the Shift key as you

turn on the multimeter.

∗

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