Fluke 8010A Manuale utente

.14

PN 834192

August 1988 Rev. 5, 1/93

TRUE RMS MULTIMETER

USER'S MANUAL

FLUKE

NOTICE

The Fluke 87 generates and uses radio frequency energy. If it is not used according to the

Instructions in this manual, it may cause interference to radio and television reception. The

Fluke 87 has been type tested and found to comply with the limits for aclass Bcomputing

device in accordance with the specifications in Subpart Jof Part 15 of FCC rules, which are

designed to provide reasonable protection against such interfence in aresidential location.

However, there Is no guarantee that interference will not occur in aparticular location. If this

equipment does cause Interference, which can be determined by turning the Fluke 87 off and

on, the user is encouraged to try to correct the interference by one or more of the following

measures:

•Move the Fluke 87 away from the receiver.

•If necessary, the user should consult the dealer or an experienced radio/television

technician for additional suggestions.

CONTENTS

TITLE PAGE

INTRODUCTION 1

MULTIMETER SAFETY 2

GETTING STARTED QUICKLY 3

HOW TO USE THE METER 4

Input Terminals and Input Alert 6

Function Selector Rotary Switch 6

Pushbuttons 8

Summary of Power-on Options 12

Digital and Analog Displays 13

Holster and Flex-Stand 17

APPLICATIONS 17

Measuring Voltage (AC/DC) 17

Measuring Current 17

Continuity Testing 19

Measuring Resistance 19

Using Conductance for High Resistance or Leakage Tests 20

Noisy Resistance Measurements 21

/(continued on page ii)

CONTENTS, continued

TITLE PAGE

Measuring Capacitance 21

Diode Testing 22

Using the Analog Bar Graph 23

Using the MIN MAX Recording Mode 23

Measuring Frequency 24

Measuring Duty Cycle 26

Pulse Width Measurements 27

MAINTENANCE 28

General Maintenance 28

Calibration 28

Battery Replacement 28

Fuse Test 30

Fuse Replacement 30

Service 31

REPLACEMENT PARTS 32

SPECIFICATIONS 34

SERVICE CENTERS 42

/'/'

INTRODUCTION

NOTE

This meter has been designedand tested according to

IEC Publication 348, Safety Requirementsfor Elec-

tronic Measuring Apparatus. This manual contains

information and warnings which must befollowed

to ensure safe operation and retain the meter in safe

condition.

WARNING

READ "MULTIMETER SAFETY" BEFORE

USING THE METER.

The Fluke 87 True RMS Multimeter (also referred to as "the

meter") is ahandheld, 4000-count instrument that is designed

for use in the field, laboratory, and at home. The meter com-

bines the precision of adigital meter with the speed and versa-

tility of ahigh resolution analog display. Frequencies between

0.5 Hz and 200 kHz can be measured with up to 0.01 Hz resolu-

tion. The meter is powered by a9V battery and has arugged

case sealed against dirt, dust and moisture. Asnap-on holster,

with flexible stand (Flex-Stand™), protects the meter from

rough handling. The flexible stand allows the meterto be stood

or hung.

The meter also provides:

•AMIN MAX Recording mode, in which the meter

"remembers" the lowest and highest readings, calcu-

lates the true average of all readings taken over a

period as long as thirty-six hours, and displays these

values. The beeper emits aMin Max Alert™ when a

new minimum or maximum reading is recorded.

•APeak MIN MAX mode that captures changes as short

as 1millisecond.

•An alternate Frequency Counter mode that measures

duty cycle and displays it as avalue between 0.0 and

99.9%.

•An Input Alert™ that causes the beeper to sound if the

test leads are plugged into the wrong input terminals for

the function being performed.

•AREL mode that allows you to store areading in

memory, and display the difference between the stored

value and subsequent readings.

•ATouch Hold® mode that allows you to keep your eyes

fixed on the probes when taking measurements in diffi-

cult or hazardous circumstances, then read the display

when it is convenient and safe.

"Input Alert, Flex-Stand, and MIN MAX Alert are trademarks of the John Fluke Mfg. Co., Inc. 1

MULTIMETER SAFETY

•Adisplay back-light that makes the meter useable in

dark areas.

•A41/2-digit display mode for ten times increase in

resolution.

•ACapacitance mode that measures capacitors from

0.01 nFto5//F.

After unpacking the meter, if you notice that the meter is dam-

aged or something is missing, contact the place of purchase

immediately. Save the shipping container and packing mate-

rial in case you have to reship the meter.

MULTIMETER SAFETY

Before usings the meter, read the following safety information

carefully. Inthis manualtheword, "WARNING," is reserved for

conditions and actions that pose hazard(s) to the user; the

word, "CAUTION," is reserved for conditions and actions that

may damage your meter. The symbols shown in Figure 1are

used internationally to denote the electrical functions and

conditions indicated. If the meter is not used as described in

this manual, the safety features of the meter might be impaired.

•Avoid working alone.

•Do not allow the meter to be used if it is damaged, or its

safety is impaired.

Inspect the test leads for damaged insulation or exposed

metal. Check test lead continuity. Damaged leads should

be replaced.

Be sure the meter is in good operating condition. During

acontinuity test, a meter reading that goes from over-

load (OL) to generally means the meter is working

properly.

Select the proper function and range for your

measurement

WARNING

TO AVOID ELECTRICAL SHOCK, USE CAUTION

WHEN WORKING ABOVE 60V DC OR 25V AC

RMS. SUCH VOLTAGES POSE ASHOCK

HAZARD.

HDANGEROUS

VOLTAGE _L GROUND

AC -ALTERNATING

CURRENT ASEE EXPLANATION

IN MANUAL

DC -

DIRECT CURRENT PI DOUBLE INSULATION

(Protection Class II)

EITHER

DC OR AC FUSE

Figure 1. International Electrical Symbols

•Disconnect the live test lead before disconnecting the

common test lead.

•Follow all safety procedures for equipment being tested.

Disconnect the input power and discharge all high-

voltage capacitors through aprotective impedance

before testing in the Oand -w- functions.

•When making acurrent measurement turn the power

off before connecting the meter in the circuit.

•Check meter fuses before measuring current trans-

former secondary or motor winding current (See "Fuse

Test" in the "MAINTENANCE" Section.) An open fuse

may allow high voltage build-up, which is potentially

hazardous.

GETTING STARTED QUICKLY

Examine the meter carefully, familiarizing yourself with the

layout of the input terminals, rotary switch, pushbuttons and

display. Notice the WARNING information and summary of

power-on options engraved into the rear panel.

If you have used amultimeter before, simply examining your

meter will probably give you agood idea how to use it. The

following procedure is an overview of how to take basic

measurements.

GETTING STARTED QUICKLY

WARNING

TO AVOID ELECTRICAL SHOCK OR DAMAGE

TO THE METER, DO NOT APPLY MORE THAN

1000V BETWEEN ANY TERMINAL AND EARTH

GROUND.

1. Insert the test leads in the appropriate input terminals

(see Table 1). If the test leads are in the wrong input ter-

minals when the meter is turned on and the beeper has

not been disabled, the beeper will emit awarning. See

"Input Terminals and Input Alert", below.

2. To turn the meter on and select afunction, turn the rotary

switch from OFF to the appropriate switch position. All

segments on the liquid -crystal display (LCD) will turn on

for one second, then the meter is ready for normal oper-

ation. If you would like to freeze the display with all seg-

ments on, press and hold down any button, while turning

the meter on. As long as the button is held down, all LCD

segments will remain on.

3. To select an additional operation, press the appropriate

pushbuttons above the rotary switch as described in the

items below. (See also, Figure 2.)

HOW TO USE THE METER

•To operate the MIN MAX and RANGE buttons: press to

select, press again to scroll or increment, and press and

hold for two seconds to exit.

•To operate the Hz button: press to select the frequency

mode, press again to select duty cycle, and press again

to exit.

•To operate the back-lit display, press the YELLOW but-

ton. The back-light automatically turns off in 68 seconds

to conserve battery life.

•To operate the remaining buttons: press to select and

press again to exit.

NOTE

The response of the display and the pushbuttons

slows down in the capacitance mode.

An annunciator is displayed when amode has been selected.

Aquick way to reset all the pushbuttons to their default state is

to turn the rotary switch to an adjacent function and then back

to the function you are using.

4. To take ameasurement, use the test lead probes to make

the proper contacts. Remember, insert the meter in the

circuit in parallel for voltage and in series for current

measurements. Read the measurement on the display. If

you did not manually select arange (by using the

RANGE button), the rangethat provides the best resolu-

tion is automatically selected.

5. To run aperformance check of the meter, turn the

rotary switch to Qarid connect atest lead from the

VO-w-input to the mA //A input. (If you are using atest

probe, touch the half of the input contact nearest the

LCD.) The display should read 1.000 kQ ±5digits. With

the rotary switch still at Q, test the Afuse (15A) by

inserting the plug end of the test lead into the Ainput

and test the mA //A fuse (1 A) by inserting the plug end

of the test lead into the mA fjA input. The beeper emits

an Input Alert if the fuses are good.

Although this procedure will allow you to get started quickly,

we suggest that you take the time to read the remainder of this

manual so that you can learn to take full advantage of your

meter's capabilities.

HOW TO USE THE METER

This section describes your meter and how to use it. FOR

EASEOFREFERENCE, EACH DESCRIPTIONIS NUMBERED

AND KEYED TO THE ILLUSTRATION INSIDE THE FRONT

COVER.

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