Fluke ProcessMeter 787 Manuale utente

787

ProcessMeter

Users Manual

April 1997, Rev.3, 12/01

All product names are trademarks of their respective companies.

LIMITED WARRANTY & LIMITATION OF LIABILITY

This Fluke product will be free from defects in material and workmanship for three years from the date of purchase. This

warranty does not cover disposable batteries or damage from accident, neglect, misuse or abnormal conditions of operation

or handling. Resellers are not authorized to extend any other warranty on Fluke’s behalf. To obtain service during the war-

ranty period, send your defective meter to the nearest Fluke Authorized Service Center with a description of the problem.

THIS WARRANTY IS YOUR ONLY REMEDY. NO OTHER WARRANTIES, SUCH AS FITNESS FOR A PARTICULAR

PURPOSE, ARE EXPRESSED OR IMPLIED. FLUKE IS NOT LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR

CONSEQUENTIAL DAMAGES OR LOSSES, ARISING FROM ANY CAUSE OR THEORY.

Since some states or countries do not allow the exclusion or limitation of an implied warranty or of incidental or consequen-

tial damages, this limitation of liability may not apply to you.

Fluke Corporation Fluke Europe B.V.

P.O. Box 9090 P.O. Box 1186

Everett, WA 5602 B.D. Eindhoven

98206-9090 USA The Netherlands

Table of Contents

Title Page

Introduction....................................................................................................................1

Contacting Fluke ........................................................................................................... 1

Safety Information......................................................................................................... 2

How to Get Started........................................................................................................ 5

Getting Acquainted with the Meter................................................................................ 6

Measuring Electrical Parameters................................................................................... 17

Input Impedance....................................................................................................... 17

Ranges..................................................................................................................... 17

Measuring a Composite Signal................................................................................. 17

Testing Diodes.......................................................................................................... 18

Displaying Minimum, Maximum, and Average.......................................................... 18

Using TouchHold...................................................................................................... 19

Compensating for Test Lead Resistance.................................................................. 19

Using the Current Output Functions.............................................................................. 20

Source Mode............................................................................................................ 20

787

Users Manual

Simulate Mode.......................................................................................................... 22

Changing the Current Span ...................................................................................... 22

Producing a Steady mA Output................................................................................. 24

Manually Stepping the mA Output ............................................................................ 25

Auto Ramping the mA Output................................................................................... 26

Power-Up Options.......................................................................................................... 27

Battery Life..................................................................................................................... 28

Using the Holster and Flex-Stand.................................................................................. 28

Maintenance .................................................................................................................. 28

General Maintenance................................................................................................ 28

Calibration................................................................................................................. 28

Replacing the Battery................................................................................................ 30

Replacing a Fuse...................................................................................................... 31

If the Meter does not Work........................................................................................ 32

Replacement Parts and Accessories............................................................................. 33

Specifications................................................................................................................. 36

Index

ProcessMeter

Introduction

WWarning

Read “Safety Information” before you use the

meter.

Your Fluke 787 ProcessMeter(referred to as “the

meter”) is a handheld, battery-operated tool for measuring

electrical parameters and supplying steady or ramping

current to test process instruments. It has all the features

of a digital multimeter, plus current output capability.

Your meter is shipped with a Flex-Standholster, one set

of TL75 test leads, one set of AC70A Alligator Clips, this

manual, and a laminated Quick Reference Card that fits

inside the holster.

If the meter is damaged or something is missing, contact

the place of purchase immediately.

Contact your Fluke distributor for information about DMM

accessories. To order replacement parts or spares, see

Table 13 near the end of this manual.

Contacting Fluke

To order accessories, receive operating assistance, or get

the location of the nearest Fluke distributor or Service

Center, call:

USA : 1-888-99-FLUKE (1-888-993-5853)

Canada: 1-800-36-FLUKE (1-800-363-5853)

Europe: +31 402-678-200

Japan: +81-3-3434-0181

Singapore: +65-738-5655

Anywhere in the world: +1-425-446-5500

787

Users Manual

Address correspondence to:

Fluke Corporation Fluke Europe B.V.

P.O. Box 9090, P.O. Box 1186,

Everett, WA 98206-9090 5602 BD Eindhoven

USA The Netherlands

Or visit us on the World Wide Web: www.fluke.com

Safety Information

The meter complies with IEC1010-1, ANSI/ISA S82.01-

1994 and CAN/CSA C22.2 No. 1010.1-92 Overvoltage

Category III. Use the meter only as specified in this

manual, otherwise the protection provided by the meter

may be impaired.

A Warning identifies conditions and actions that pose

hazard(s) to the user; a Caution identifies conditions and

actions that may damage the meter or the equipment

under test.

International symbols used on the meter and in this

manual are explained in Table 1.

WWarning

To avoid possible electric shock or personal

injury:

•Do not use the meter if it is damaged.

Before you use the meter, inspect the

case. Look for cracks or missing plastic.

Pay particular attention to the insulation

surrounding the connectors.

ProcessMeter

Safety Information

•Make sure the battery door is closed and

latched before you operate the meter.

•Remove test leads from the meter before

you open the battery door.

•Inspect the test leads for damaged

insulation or exposed metal. Check test

leads continuity. Replace damaged test

leads before you use the meter.

•Do not use the meter if it operates

abnormally. Protection may be impaired.

When in doubt, have the meter serviced.

•Do not operate the meter around

explosive gas, vapor, or dust.

•Use only a single 9V battery, properly

installed in the meter case, to power the

meter.

•When servicing the meter, use only

specified replacement parts.

Caution

To avoid possible damage to meter or to

equipment under test:

Disconnect the power and discharge all high-

voltage capacitors before testing resistance

or continuity.

Use the proper jacks, function, and range for

your measurement or sourcing application.

To protect yourself, adhere to the following guidelines:

•Use caution when working above 30V ac rms, 42V ac

pk, or 60V dc. Such voltages pose a shock hazard.

•When using the probes, keep your fingers behind the

finger guards on the probes.

•Connect the common test lead before you connect

the live test lead. When you disconnect test leads,

disconnect the live test lead first.

787

Users Manual

Table 1. International Symbols

Symbol Meaning Symbol Meaning

Alternating current Earth ground

Direct current Fuse

cAlternating or direct current Conforms to European Union directives

Refer to the manual for information about

this feature. Conforms to relevant Canadian

Standards Association directives

Battery TDouble insulated

Meets Underwriters’ Laboratories safety

requirements Inspected and licensed by TÜV Product

Services

CAT III Overvoltage (Installation) Category III, Pollution Degree 2 per IEC1010-1 refers to the level of Impulse

Withstand Voltage protection provided. Typical locations include; Mains, wall outlets, main distribution

levels connected closer to the supply system but less than the primary supply system (CAT IV).

ProcessMeter

How to Get Started

If you are familiar with the Fluke 80 Series DMM, read

“Using the Current Output Functions,” review the tables

and figures in “Getting Acquainted with the Meter,” and

begin using your meter.

If you are unfamiliar with Fluke 80 Series DMMs, or DMMs

in general, read “Measuring Electrical Parameters” in

addition to the sections referenced in the previous

paragraph.

The sections following “Using the Current Output

Functions” contain information about the power-up

options, and battery and fuse replacement instructions.

Later, use the Quick Reference Card to refresh your

memory about the various functions and features that you

can use.

OFF

AmA COM V

1000V

30mA

FUSED

0.44A

(1A/30 sec)

FUSED

OUTPUT 0-24mA

SOURCE SIMULATE

+ +

% STEP COARSE FINE

OUTPUT

CAT

787

PROCESSMETER

MIN MAX RANGE HOLD

REL Hz

Display

Pushbuttons

Rotary

Switch

Input/Output

Jacks

ee014f.eps

Figure 1. Fluke 787 ProcessMeter

787

Users Manual

Getting Acquainted with the Meter

To become familiar with the features and functions of the

meter, study the following figures and tables.

•Figure and Table 2 describe the input/output jacks.

•Figure and Table 3 describe the input functions you

get with the first five rotary switch positions.

•Figure and Table 4 describe the output functions you

get with the last two rotary switch positions.

•Figure and Table 5 describe the functions of the

pushbuttons.

•Figure and Table 6 explain what all the elements of

the display indicate.

AmA COM V

1000V

30mA

FUSED

0.44A

(1A/30 sec)

FUSED

OUTPUT 0-24mA

SOURCE SIMULATE

+ +

CAT

ee001f.eps

Figure 2. Input/Output Jacks

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