Keithley 2002 Manual de lista de piezas

Model 2002Multimeter

Getting Started Manual

A GREATER MEASURE OF CONFIDENCE

WARRANTY

Keithley Instruments, Inc. warrants this product to be free from defects in material and workmanship for a

period of 3 years from date of shipment.

Keithley Instruments, Inc. warrants the following items for 90 days from the date of shipment: probes,

cables, rechargeable batteries, diskettes, and documentation.

During the warranty period, we will, at our option, either repair or replace any product that proves to be

defective.

To exercise this warranty, write or call your local Keithley representative, or contact Keithley headquarters in

Cleveland, Ohio. You will be given prompt assistance and return instructions. Send the product, transporta-

tion prepaid, to the indicated service facility. Repairs will be made and the product returned, transportation

prepaid. Repaired or replaced products are warranted for the balance of the original warranty period, or at

least 90 days.

LIMITATION OF WARRANTY

This warranty does not apply to defects resulting from product modiﬁcation without Keithley’s express writ-

ten consent, or misuse of any product or part. This warranty also does not apply to fuses, software, non-

rechargeable batteries, damage from battery leakage, or problems arising from normal wear or failure to fol-

low instructions.

THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED,

INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICU-

LAR USE. THE REMEDIES PROVIDED HEREIN ARE BUYER’S SOLE AND EXCLUSIVE REME-

DIES.

NEITHER KEITHLEY INSTRUMENTS, INC. NOR ANY OF ITS EMPLOYEES SHALL BE LIABLE

FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARIS-

ING OUT OF THE USE OF ITS INSTRUMENTS AND SOFTWARE EVEN IF KEITHLEY INSTRU-

MENTS, INC., HAS BEEN ADVISED IN ADVANCE OF THE POSSIBILITY OF SUCH DAMAGES.

SUCH EXCLUDED DAMAGES SHALL INCLUDE, BUT ARE NOT LIMITED TO: COSTS OF

REMOVALAND INSTALLATION, LOSSES SUSTAINED AS THE RESULT OF INJURY TOANY PER-

SON, OR DAMAGE TO PROPERTY.

Model 2002 Multimeter

Getting Started Manual

Cleveland, Ohio, U.S.A.

First Printing May 1994

Document Number: 2002-903-01 Rev. A

Manual Print History

The print history shown below lists the printing dates of all Revisions and Addenda created

for this manual. The Revision Level letter increases alphabetically as the manual undergoes sub-

sequent updates.Addenda, which are released between Revisions, contain important change in-

formation that the user should incorporate immediately into the manual.Addenda are numbered

sequentially.WhenanewRevisionis created,allAddenda associated withthe previous Revision

of the manual are incorporated into the new Revision of the manual. Each new Revision includes

a revised copy of this print history page.

RevisionA (Document Number 2002-903-01) ................................................................. May 1994

All Keithley product names are trademarks or registered trademarks of Keithley Instruments, Inc.

Other brand names are trademarks or registered trademarks of their respective holders.

Safety Precautions

The following safety precautions should be observed before using this product and any asso-

ciated instrumentation. Although some instruments and accessories would normally be used

with non-hazardous voltages, there are situations where hazardous conditions may be present.

This product is intended for use by qualiﬁed personnel who recognize shock hazards and are

familiar with the safety precautions required to avoid possible injury. Read the operating infor-

mation carefully before using the product.

Exercise extreme caution when a shock hazard is present. Lethal voltage may be present on

cable connector jacks or test ﬁxtures. The American National Standards Institute (ANSI) states

that a shock hazard exists when voltage levels greater than 30V RMS, 42.4V peak, or 60VDC

are present.

A good safety practice is to expect that hazardous voltage is present in any un-

known circuit before measuring.

Before operating an instrument, make sure the line cord is connected to a properly grounded

power receptacle. Inspect the connecting cables, test leads, and jumpers for possible wear,

cracks, or breaks before each use.

For maximum safety, do not touch the product, test cables, or any other instruments while

power is applied to the circuit under test.ALWAYS remove power from the entire test system

and discharge any capacitors before: connecting or disconnecting cables or jumpers, installing

or removing switching cards, or making internal changes, such as installing or removing jump-

ers.

Do not touch any object that could provide a current path to the common side of the circuit

under test or power line (earth) ground.Always make measurements with dry hands while stand-

ing on a dry, insulated surface capable of withstanding the voltage being measured.

Do not exceed the maximum signal levels of the instruments and accessories, as deﬁned in

the speciﬁcations and operating information, and as shown on the instrument or test ﬁxture rear

panel, or switching card.

Do not connect switching cards directly to unlimited power circuits. They are intended to be

used with impedance limited sources. NEVER connect switching cards directly toAC main.

When connecting sources to switching cards, install protective devices to limit fault current and

voltage to the card.

When fuses are used in a product, replace with same type and rating for continued protection

against ﬁre hazard.

Chassis connections must only be used as shield connections for measuring circuits, NOT as

safety earth ground connections.

If you are using a test ﬁxture, keep the lid closed while power is applied to the device under

test. Safe operation requires the use of a lid interlock.

If a screw is present, connect it to safety earth ground using #18AWG or larger wire.

The symbol on an instrument or accessory indicates that 1000V or more may be present

on the terminals. Refer to the product manual for detailed operating information.

Instrumentation and accessories should not be connected to humans.

Maintenance should be performed by qualiﬁed service personnel. Before performing any

maintenance, disconnect the line cord and all test cables.

Table of Contents

Front Panel Operation

Product overview.................................................................................1-2

Display ................................................................................................1-8

Power-up..............................................................................................1-8

Bench defaults.....................................................................................1-9

Voltage measurements.......................................................................1-10

Current measurements.......................................................................1-11

Two and four-wire resistance measurements ....................................1-12

Frequency measurements..................................................................1-14

Temperature measurements...............................................................1-16

Measurement Options

Multiple displays.................................................................................2-2

Menus..................................................................................................2-6

Relative..............................................................................................2-10

Trigger...............................................................................................2-11

Speed.................................................................................................2-14

Resolution..........................................................................................2-15

Filter ..................................................................................................2-16

Buffer (Data Store)............................................................................2-18

Math ..................................................................................................2-20

Internal scanning ...............................................................................2-22

External scanning..............................................................................2-26

IEEE-488 Bus Operation

Software support..................................................................................3-2

IEEE-488 bus standards ......................................................................3-3

IEEE-488 bus connections ..................................................................3-3

Primary address selection....................................................................3-4

Common commands............................................................................3-5

SCPI commands..................................................................................3-6

SCPI command syntax ........................................................................3-7

SCPI signal oriented commands .......................................................3-11

SCPI subsystem commands ..............................................................3-12

Program examples.............................................................................3-18

Specs and Accessories

Condensed speciﬁcations ....................................................................4-2

Accessories available...........................................................................4-8

Front Panel

Operation

Product overview

If you have any questions after reviewing this information, please contact your local Keithley

representative, or call one of our Applications Engineers at

1-800-348-3735

(U.S. and Canada

only). Worldwide phone numbers are listed on the back cover.

The Model 2002 is an 8

-digit multimeter with the following measurement capabilities:

• DC voltage measurements from 1nV to 1100V

• AC RMS voltage measurements from 100nV to 750V, 1100V peak

• DC current measurements from 10pA to 2.1A

• AC current measurements from 100pA to 2.1A

• 2-wire resistance measurements from 100n

Ω

to 1.05G

Ω

• 4-wire resistance measurements from 100n

Ω

to 2.1M

Ω

• Frequency measurements from 1Hz to 15MHz

• RTD temperature measurements from -200

C to +630

• Thermocouple temperature measurements (with optional card) from -200

C to +1820

Figure 1

Measurement ranges

(resolution)

1nV100nV 1Hz

100µA

100pA 1Hz

60mV

60ns 0.001°

20Hz

500ns

2µs

100nΩ

1.4µA

1100V

1100V 2MHz

2.1A

12A

2.1A 15MHz

600V

1 second

630°

1820°C1MHz

16 seconds

7.2mA

10–

1µ

10–

Ω

109

10–12

DC Voltage

AC Voltage

AC Voltage Bandwidth

DC Current

DC In-Circuit Current

AC Current

Frequency

Frequency Sensitivity

Period

Temperature–RTD

Temperature–TC

Crest Factor

Peak Spikes–Repetitive

Peak Spikes–Single

Resistance (2-wire)

Ohms Source Current

10pA

Logarithmic scale

100nΩ

2.1M

Ω

Resistance (4-wire)

0.001°

1-2 Front Panel Operation

Some additional capabilities of the Model 2002 include:

• Data storage with burst mode capability

• Scan (measure) channels of an external scanner (e.g., Model 7001 or 7002)

• Single button zeroing (REL)

• Built-in math functions

• Digital ltering

• Remote operation using the IEEE-488 bus

By installing the appropriate option card, the capabilities of the Model 2002 are extended as

follows:

• Scan internal channels (Model 2001-SCAN Scanner Card or Model 2001-TCSCAN

Thermocouple Scanner Card)

• Perform thermocouple temperature measurements (Model 2001-TCSCAN Thermocou-

ple Scanner Card)

• Extend the voltage and resistance measurement ranges (Model 1801 Nanovolt Preamp)

The Model 2002 front and rear panel overviews (Figures 2 and 3) include important abbrevi-

ated information that should be reviewed before operating the instrument.

Front Panel Operation 1-3

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