Velleman DVM891 Manuel utilisateur

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01.10.2009

DVM89

©Velleman

01.10.2009

1. Int

To all re

Importa

If in dou

Thank yo

bringing t

install or

certain g

dealer wil

Your DV

display. I

The devic

to this te

measure

The DVM

continuit

diodes an

Be very c

device m

precautio

prescripti

electrical

This devi

Refer to t

of this m

This mult

Neverthel

following

•Never

ground

•Use ex

30Vrm

roduction

idents of the

t environmen

This symbol on

of the device a

not dispose of

waste; it shoul

This device sh

recycling servi

bt, contact yo

for choosing Ve

his device into s

se it and contac

idelines in this

l not accept res

891 is a profes

is ideally suite

e is equipped wi

hnology, the D

ents for years t

891 measures

, capacitance, fr

d transistors (h

arning

reful when perf

y result in serio

s for working w

ns listed below.

circuits and test

e is not intende

e Velleman®

nual.

afety Prescrip

-meter was desi

ess, safe operat

safety prescripti

pply more than

reme caution w

AC.

DVM89

User ma

uropean Unio

al information

the device or th

ter its lifecycle

he unit (or batt

be taken to a

uld be returned

e. Respect the l

r local waste

lleman! Please r

rvice. If the devi

your dealer. Da

anual is not co

onsibility for an

ional digital mu

for professional

h the latest in I

M891 will provi

o come.

C and AC voltag

equency and te

E).

rming measure

s injuries or ev

ith electrical circ

Do not use this

ng procedures.

for commercial

ervice and Qu

ions

gned to ensure

on mainly depe

ns:

600VDC or 600

en working with

ual

about this pro

e package indic

ould harm the e

ries) as unsorte

pecialized comp

to your distribut

cal environmen

isposal author

ad the manual t

e was damaged

age caused by

ered by the war

ensuing defect

ti-meter with a

, academic and

and display te

e you with pre

e, DC and AC cu

peratures. You

ents as impro

n death. Take a

uits and mind th

device if you ar

or industrial us

lity Warranty

he safest operat

ds on you, the

rms AC between

voltages in exc

©Velleman

uct

tes that disposa

nvironment. Do

d municipal

ny for recycling

r or to a local

al rules.

ties.

oroughly before

in transit, don't

disregard of

ranty and the

or problems.

½ digit LCD

ome application

hnology. Thank

ise and reliable

rrent, resistance

an also test

er use of this

ll usual

e safety

unfamiliar with

n the last page

ion possible.

ser. Respect th

an input jack a

ss of 60VDC or

DVM891

01.10.2009 ©Velleman nv

•Always discharge the filter capacitors in a power supply circuit before

attaching the test leads.

•Never connect a voltage source to the DVM891 when it is in current (DCA

or ACA) mode, resistance or continuity mode.

•Always turn off the power and disconnect the test leads prior to replacing

the battery or fuse.

•The user should only operate the multi-meter when the back cover is in

place and securely fastened.

•When carrying out measurements on TVs or switching power circuits, you

should always remember that high voltage pulses may occur at the test

points. These pulses may damage the meter.

c. Maintenance

Your DVM891 is an example of superior design and craftsmanship. The

following suggestions will help you keep the device in perfect working order:

•Do not expose the device to water. Wipe it dry immediately if it should get

wet.

•Use and store the multi-meter under normal temperatures. Extreme

temperatures may shorten the life of the device or damage the battery.

•Handle the multi-meter with care. Dropping it may damage the circuit

boards or the housing and may cause the DVM891 to malfunction.

•Replace an old or weak battery with a fresh one of the required size and

type.

•Remove the battery during long periods of inactivity. This will protect the

multi-meter from possible leakage.

•Disconnect the test probes prior to opening the housing.

•A blown fuse should be replaced with an identical one (see §6).

•Do not use this device in case of malfunction or if anomalies are detected.

Have it repaired by qualified personnel.

•Do not use the multi-meter unless the back cover is in place and fully

fastened.

•Use a soft cloth and a mild detergent for cleaning purposes. Never use

abrasives or solvents on the meter.

2. Accessories

•set of test leads

•K-type thermocouple (400°C)

•1 battery of 9V

•1 user manual

•1 holster: it protects the device and ensures comfortable operation. Refer

to the illustrations on page Error! Bookmark not defined. of this manual.

A & B. Use one of the two supports to place the device on a table or a

desk.

01.10.2009

C. Han

remo

holst

D. Eac

•1 adap

temper

3. De

Refer to t

manual.

1 LCD

2 Pow

3 "10

4 "mA

a. Ran

This rota

ranges.

b. Pow

This push

equipped

deactivat

15 minut

the devic

DVM891

c. Inpu

The DVM

overload.

should b

connecte

function.

FUN

200

Ω

the meter on t

ve the smaller s

r. Use the supp

of the two sup

or socket for sa

ture.

cription of

he illustrations

screen

r ON/OFF butto

" jack

hFe" jack

e and Functio

y switch is used

r Switch

-button activate

with an energy-

d when the RA

s. The user will

on again when

t Jacks

891 is equipped

The limit values

connected to th

to one of the o

TION RE

CON

& V∼

Ω

& mA∼

10A∼

DVM89

e wall using the

pport and inser

rt to hang the

orts in fig. D ca

ely measuring t

ront pa

n page Error! B

Selector

to install the va

and deactivate

aving feature: t

GE and FUNCTI

have to press th

the energy-savi

with 4 input jac

are listed in the

e "COM" jack. T

her three input

LEAD

ECTION

VΩHz 250

VΩHz 600

VΩHz 250

A/hFe 200

10A 10A

10A

smaller of the t

it in the slots a

evice on a nail i

n hold a test lea

ansistors, capac

okmark not defi

"COM" jack

"VΩHz" jack

RANGE and FU

ious functions a

the device. Th

he meter is auto

N selector has

e ON/OFF butto

g feature has d

s that are prote

table below. Th

e red test lead

acks, dependin

INPUT L

DC or rms AC

DC, 600V AC (s

DC or rms AC

A DC or rms AC

C or rms AC co

or max. 15 seco

©Velleman

o supports:

the top of the

the wall.

ties and

ed. of this

CTION switch

d each of the 2

DVM891 is als

matically

ot been used fo

twice to switch

activated the

cted against

black test lead

hould be

on the required

MITS

ine wave)

tinuous

nds

01.10.2009

4. Op

a. Mea

1. Conn

(+) t

2. Sele

conn

3. The

on th

Remark:

b. Mea

1. Conn

(+) t

2. Sele

the t

3. The

Remark:

c. Mea

1. Conn

(+) t

test l

sec.

2. Sele

3. Conn

4. The

on th

Remark:

d. Mea

1. Conn

(+) t

test l

sec.

2. Sele

3. Conn

4. The

Remark:

rating inst

uring DC Volt

ect the black tes

the "VΩHz" jac

t the appropriat

ct the test lead

easured value

e LCD.

Set the FUNCTI

your way down

uring AC Volta

ect the black tes

the "VΩHz" jac

t the appropriat

st leads to the

easured value

Set the FUNCTI

your way down

uring DC Curr

ect the black tes

the "mA" jack

ad to the "10A"

t a stretch).

t the A rang

ect the test lead

olarity of the re

e LCD.

Set the FUNCTI

your way down

uring AC Curr

ect the black tes

the "mA" jack

ad to the "10A"

t a stretch).

t the A ∼range

ect the test lead

easured curren

Set the FUNCTI

your way down

DVM89

uctions

t lead (-) to the

V rangewit

to the source o

nd the polarity

N switch to the

if the voltage r

t lead (-) to the

V∼range with

ource or load to

ppears on the L

N switch to the

if the voltage r

t lead (-) to the

or measuremen

jack for measu

with the FUNC

IN SERIES wi

test lead and t

N switch to the

if the current r

t lead (-) to the

or measuremen

jack for measu

ith the FUNCTI

IN SERIES wi

is displayed on

N switch to the

if the current r

"COM" jack and

the FUNCTION

r load to be test

f the red test le

highest range a

nge is unknown

"COM" jack and

he FUNCTION s

be tested.

D display.

highest range a

nge is unknown

"COM" jack and

s of max. 200m

ements o

max.

ION switch.

h the load unde

e measured cur

highest range a

nge is unknown

"COM" jack and

s of max. 200m

ements of max.

N switch.

h the load unde

the LCD.

highest range a

nge is unknown

©Velleman

he red test lead

switch and

d are displayed

d gradually wo

beforehand.

he red test lead

itch and conne

d gradually wo

beforehand.

he red test lead

. Move the red

10A (for max. 1

measurement.

rent are display

d gradually wo

beforehand.

he red test lead

. Move the red

10A (for max. 1

measurement.

d gradually wo

beforehand.

01.10.2009

e. Mea

1. Conn

to th

2. Sele

the t

Remark



f. Mea

1. Conn

(+) t

2. Conn

sock

one

Remark

3. Sele

4. Conn

lead

(

5. The

g. Test

1. Conn

to th

2. Sele

test l

3. Conn

cath

4. For c

circui

resis

h. Tran

1. Conn

(+) t

2. Sele

3. Dete

the e

holes

uring Resista

ct the black tes

"VΩHz" jack.

t the appropriat

st leads with th

he meter may n

esistance measu

he overrange in

put is not conn

he max. value o

isconnect the ci

re fully discharg

uring Capacit

ect the black tes

the "mA" jack.

ect the test cap

t following the i

f the 4 input jac

: Do not connec

Discharge capa

t the "F" range

ect the black tes

(

+) to the other

isplay will show

ng Diodes & C

ct the black tes

"VΩHz" jack.

t the 200/ ra

ads.

ect the red test l

de of the diode

ntinuity tests:

t to be tested. T

ance between t

sistor Test (hF

ect the black tes

the "mA" jack.

t the hFE-range

mine whether t

mitter, the base

in the included

DVM89

lead (-) to the "

"Ω" range with

load to be mea

eed a few secon

rements in exce

ication (“1.”) w

cted or if the re

the selected ra

cuit to be teste

ed before meas

nce

t lead (-) to the

citor to the "Cx"

dicated polarity

ks (viz. "10A", "

an external vol

citors before co

ith the FUNCTI

t lead (-) to the

terminal of the

the capacitance

ntinuity

lead (-) to the "

ge with the FU

ead to the anod

o be tested.

onnect the test

he incorporated

e two test leads

)

t lead (-) to the

with the FUNCTI

e transistor is o

and the collecto

dapto

socket.

OM" jack and t

the FUNCTION

sured.

s to produce a

s of 1MΩ.

ll appear on the

istance being

ge.

and make sure

ring the in-circu

"COM" jack and

input connectio

. Do NOT conne

A", "COM" or "

age to the input

necting them.

N switch.

"COM" terminal

daptor socket.

value.

OM" jack and t

CTION switch a

and the black t

eads to two ran

uzzer is activat

is lower than ±

"COM" jack and

ON switch.

the NPN- or PN

. Insert the lea

©Velleman

e red test lead (

witch and conne

table reading fo

display if the

easured exceed

that all capacito

t resistance.

he red test lead

on the adaptor

t the capacitor t

ΩHz" jack).

terminal.

nd the red test

e red test lead (

d connect the

est lead to the

om points of th

d if the

30Ω.

he red test lead

-type and locat

s into the prope

)

DVM891

01.10.2009 ©Velleman nv

4. Connect the black test lead (-) to the "COM" terminal and the red test

lead (+) to the other terminal of the adaptor socket.

5. The display will show the approximate hFE-value at the moment of

testing. Base current 10µA, Vce 2.8V.

i. Measuring Temperature

1. Connect the black test lead (-) to the "COM" jack and the red test lead

(+) to the "mA" jack.

2. Select the TEMP-range with the FUNCTION switch.

3. Insert the plug of the K-thermocouple in the adaptor socket according

to the indicated polarity.

Remark: push the temperature probe firmly into the socket.

4. Connect the black test lead (-) to the "COM" terminal and the red test

lead (+) to the other terminal of the adaptor socket.

5. The display will show the temperature.

Remark: without the thermocouple in place, the display will show the

ambient temperature.

j. Measuring Frequency

1. Connect the black test lead (-) to the "COM" jack and the red test lead

(+) to the "VΩHz" jack.

2. Select the "KHz" range with the FUNCTION switch and connect the test

leads to the source or load to be tested.

Remarks:

Do not apply more than 220Vrms to the input.

Use shielded cable for measuring a weak signal in a noisy

environment.

k. Automatic Power off

1. The device will be deactivated automatically when the FUNCTION and

RANGE switch has not been used for 15 minutes. This energy-saving

feature extends the life of your battery.

2. The meter will be reactivated if the FUNCTION and RANGE switch is

turned or if the power switch is pressed again.

5. Specifications

Maximum accuracy is guaranteed for a one-year period after calibration.

Ideal circumstances require a temperature of 23°C (± 5°C) and a max.

relative humidity of 75%.

a. General

Max. Voltage between Terminal and

Earth

600VDC or 600Vrms AC (sine wave)

Display 3 ½ digit LCD, 2 to 3 readings/sec.

Fuse Protection 200mA-range: F 0.2A/250V resettable

10A-range: F 10A/250V

Power Supply 9V-battery

01.10.2009

Ranging

Polarity I

Overrang

Battery-L

Operatin

Storage

Dimensio

Weight

b. DC

Ran

200

Input Im

Overload

c. AC

Input Im

Frequenc

Overload

range: m

d. DC C

200

Overload

Max. Inp

e. AC C

200

ethod

dication

Indication

w Indication

Temperature

emperature

oltage

edance: 10MΩ

Protection: 600

oltage

edance: 10MΩ

Range: 40 to

Protection: 600

x. 15 sec. abov

urrent

Protection: 0.2A

t Current: 10A

(

urrent

DVM89

manual

" - " is

" 1. " i

""is

0°C to

-10°C

88 x 1

340g (i

esolution

100µV

1mV

10mV

100mV

or all ranges

DC or peak AC

esolution

10mV

100mV

or all ranges

00Hz

rms or peak co

300Vrms).

esolution

1µA

10µA

100µA

10mA

resettable fuse,

(

max.10 seconds

esolution

10µA

100µA

10mA

isplayed

displayed auto

displayed

0°C

o 50°C

0 x 38mm

ncl. battery)

±0.5% o

±0.8% o

for all ranges

±0.8% o

±1.2% o

tinuous (except

±0.8% o

±1.2% o

±2.0% o

10A fuse for 10

every 15 minut

±1.2% o

±2.0% o

±3.0% o

©Velleman

atically

uracy

rdg ±1 digit

rdg ±2 digits

uracy

rdg ±3 digits

for the 200mVA

uracy

rdg ±1 digit

rdg ±5 digits

range

uracy

rdg ±3 digits

rdg ±7 digits

01.10.2009

Overload

Range: 4

Max. Inp

f. Resi

Ω

200

g. Cap

h. Tem

Range

TEMP

Using

 Usin

i. Freq

Overload

6. Re

The "

as follow

1. Disc

remo

housi

2. Rem

3. Inse

4. Repl

The fuse

to an err

replace t

10A/25

Protection: 0.2A

to 400Hz

t Current: 10A

(

tance

Ω

kΩ

Ω

citance

ange

00nF

2µF

0µF

erature

Temperature

- 50°C to

 0°C to

K-type thermo

the built-in tem

uency

Protection: AC 2

lacing the

" symbol appear

nnect the test l

ve the test lead

ng. This is nece

ve the screws i

t a new 9V-batt

ce the cover an

arely needs to

r on behalf of th

e blown fuse wi

V).

DVM89

resettable fuse,

(

max.10 seconds

esolution

0.1Ω

1Ω

10Ω

100Ω

1kΩ

10kΩ

Resolution

100pF

1nF

10nF

Range Resol

00°C 1°

0°C

ouple probe

perature sensor

Resolution

10Hz

20Vrms

attery and

s when the batt

ads from all live

from the input

sary in order to

the back cover

ry (NEDA1604

tighten the scr

e replaced and

e operato

. Ope

h an identical o

10A fuse for 10

every 15 minut

±0.8% o

±1% of

±2.5

tion

C ±0.7

±1% of

he Fuse

ry needs to be r

sources, switch

erminals BEFOR

avoid the risk of

and retrieve the

r IEC6F22).

ws.

blown fuse is n

the housing (s

e (F 0.2A/250

©Velleman

range Frequen

uracy

rdg ±3 digits

rdg ±1 digit

dg ±2 digits

ccuracy

of rdg ±5 digit

Accuracy

5% of rdg ±3°C

±2°C

uracy

dg ±1 digit

placed. Procee

off the device a

E opening the

electroshocks.

battery.

arly always du

e above) and

resettable, F

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