Velleman DVM852 User manual

DVM852

DIGITAL MULTIMETER - 1999 COUNTS

DIGITALE MULTIMETER - 1999 COUNTS

MULTIMÈTRE NUMÉRIQUE - 1999 POINTS

MULTÍMETRO DIGITAL - 1999 CUENTAS

DIGITAL-MULTIMETER - 1999 ZÄHLUNGEN

MULTIMETR CYFROWY - WARTOŚCI DO 1999

MULTÍMETRO DIGITAL - CONTAGEM ATÉ 1999

CAT. III 600 V

USER MANUAL 3

HANDLEIDING 14

MODE D'EMPLOI 25

MANUAL DEL USUARIO 36

BEDIENUNGSANLEITUNG 47

INSTRUKCJA OBSŁUGI 59

MANUAL DO UTILIZADOR 71

DVM852

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DVM852

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USER MANUAL

1. Introduction

To all residents of the European Union

Important environmental information about this product

This symbol on the device or the package indicates that disposal of

the device after its lifecycle could harm the environment. Do not

dispose of the unit (or batteries) as unsorted municipal waste; it

should be taken to a specialized company for recycling. This device

should be returned to your distributor or to a local recycling

service. Respect the local environmental rules.

If in doubt, contact your local waste disposal authorities.

Thank you for choosing Velleman! Please read the manual thoroughly before

bringing this device into service. If the device was damaged in transit, do

not install or use it and contact your dealer.

2. Used Symbols

AC (Alternating Current)

DC (Direct Current)

Both AC and DC

Risk of Electric shock. A potentially hazardous voltage is

possible.

Caution: risk of danger, refer to the user manual for safety

information.

Warning: a hazardous condition or action that may result in

injury or death

Caution: condition or action that may result in damage to the

meter or equipment under test

Double insulation (class 2-protection)

Earth

Fuse

Capacitor

Diode

Continuity

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3. General Guidelines

Refer to the Velleman® Service and Quality Warranty on the last pages

of this manual.

This symbol indicates: Read instructions

Not reading the instructions and manual can lead to damage,

injury or death.

This symbol indicates: Danger

A hazardous condition or action that may result in injury or

death

This symbol indicates: Risk of danger/damage

Risk of a hazardous condition or action that may result in

damage, injury or death

This symbol indicates: Attention; important information

Ignoring this information can lead to hazardous situations.

WARNING: To avoid electrical shock always disconnect the

test leads prior to opening the housing. To prevent fire hazards,

only use fuses with the same ratings as specified in this manual.

Remark: refer to the warning on the battery compartment

Avoid cold, heat and large temperature fluctuations. When

the unit is moved from a cold to a warm location, leave it

switched off until it has reached room temperature. This to

avoid condensation and measuring errors.

Protect this device from shocks and abuse. Avoid brute force

when operating.

Pollution degree 2-device. For indoor use only. Keep this device

away from rain, moisture, splashing and dripping liquids. Not for

industrial use. Refer to §8 Pollution degree.

Keep the device away from children and unauthorised users.

Risk of electric shock during operation. Be very careful

when measuring live circuits.

There are no user-serviceable parts inside the device.

Refer to an authorized dealer for service and/or spare parts.

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This is an installation category CAT III measuring

instrument. Never use this equipment in a CAT IV

environment. Refer to §7 Overvoltage/installation category.

Read this addendum and the manual thoroughly. Familiarise

yourself with the functions of the device before actually using it.

All modifications of the device are forbidden for safety reasons.

Damage caused by user modifications to the device is not

covered by the warranty.

Only use the device for its intended purpose. Using the device in

an unauthorized way will void the warranty. Damage caused by

disregard of certain guidelines in this manual is not covered by

the warranty and the dealer will not accept responsibility for any

ensuing defects or problems.

4. Maintenance

There are no user-serviceable parts inside the device.

Refer to an authorized dealer for service and/or spare parts.

Before performing any maintenance activities, disconnect the test leads

from the jacks.

For instructions on replacing battery or fuse, refer to §11 Battery and fuse

replacement.

Do not apply abrasives or solvents to the meter. Use a damp cloth and mild

detergent for cleaning purposes.

5. During Use

Risk of electric shock during operation. Be very careful when

measuring live circuits.

Never exceed the limit value for protection. This limit value is listed

separately in the specifications for each range of measurement.

Do not touch unused terminals when the meter is linked to a circuit

which is being tested.

Never use the meter with CAT III installations when measuring voltages

that might exceed the safety margin of 600 V above earth ground.

Set the range selector at its highest position if the intensity of the

charge to be measured is unknown beforehand.

Disconnect the test leads from the tested circuit before rotating the

range selector in order to change functions.

When carrying out measurements on a TV set or switching power

circuits, always remember that the meter may be damaged by any high

amplitude voltage pulses at test points.

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Always be careful when working with voltages above 60 VDC or 30 VAC

rms. Keep your fingers behind the probe barriers at all times during

measurement.

Never perform resistance, diode or continuity measurements on live

circuits. Make sure all capacitors in the circuit are depleted.

6. General Description

The DVM852 is a battery-operated, hand-held 3 ½ digital multi-meter for

measuring DC and AC voltages, DC current and resistance. It also offers the

possibility of executing continuity tests and of testing diodes and transistors.

The back light is optional.

Refer to the illustration on page 2 of this manual:

1. Display

3 ½ digits, 7 segments, LCD: 15 mm high

2. Back light

When this button is pushed, the backlight will illuminate your display

for approximately 5 seconds.

3. Rotary switch

This switch is used to select functions and desired ranges as well as to

turn the meter on/off.

4. Hold button

Upon pushing this button, the display will retain the last reading and

the " "-symbol will remain on the LCD until the button is pushed

again.

5. "10A" jack

Insert the red test lead in this connector in order to measure a max.

current of 10 A.

6. "COM" jack

Insert the black (negative) test lead.

7. "VmA" jack

Insert the red (positive) test lead in this connector to measure voltage,

resistance and current (except 10 A).

7. Overvoltage/Installation Category

DMMs are categorized depending on the risk and severity of transient

overvoltage that might occur at the point of test. Transients are short-lived

bursts of energy induced in a system, e.g. caused by lightning strike on a

power line.

The existing categories according EN 61010-1 are:

CAT I

A CAT I-rated meter is suitable for measurements on protected

electronic circuits that are not directly connected to mains power,

e.g. electronics circuits, control signals…

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CAT

A CAT II-rated meter is suitable for measurements in CAT I-

environments and mono-phase appliances that are connected to the

mains by means of a plug and circuits in a normal domestic

environment, provided that the circuit is at least 10 m apart from a

CAT III- or 20 m apart from a CAT IV-environment. E.g. household

appliances, portable tools…

CAT

III

A CAT III-rated meter is suitable for measurements in CAT I- and

CAT II-environments, as well as for measurements on (fixed) mono-

or poly-phased appliances which are at least 10 m apart from of a

CAT IV-environment, and for measurements in or on distribution

level equipment (fuse boxes, lighting circuits, electric ovens).

CAT

A CAT IV-rated meter is suitable for measuring in CAT I-, CAT II-

and CAT III-environments as well as on the primary supply level.

Note that for all measurements on equipment for which the supply

cables run outdoors (either overhead or underground) a CAT IV

meter must be used.

Warning:

This device was designed in accordance with EN 61010-1 installation

category CAT III 600 V. This implies that certain restrictions in use apply

that are related to voltages and voltage peaks which can occur within the

environment of use. Refer to the table above.

This device is only suitable for measurements up to 600 V in

CAT III

8. Pollution Degree

IEC 61010-1 specifies different types of pollution environments, for which

different protective measures are necessary to ensure safety. Harsher

environments require more protection, and the protection against the

pollution which is to be found in a certain environment depends mainly on

the insulation and the enclosure properties. The pollution degree rating of

the DVM indicates in which environment the device may be used.

Pollution

degree 1

No pollution or only dry, nonconductive pollution occurs. The

pollution has no influence. (only to be found in hermetically

sealed enclosures)

Pollution

degree 2

Only nonconductive pollution occurs. Occasionally,

temporary conductivity caused by condensation is to be

expected.(home and office environments fall under this

category)

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Pollution

degree 3

Conductive pollution occurs, or dry nonconductive pollution

occurs that becomes conductive due to condensation that is

to be expected.

(industrial environments and environments exposed to

outside air - but not in contact with precipitation)

Pollution

degree 4

The pollution generates persistent conductivity caused by

conductive dust or by rain or snow. (exposed outdoor

environments and environments where high humidity levels

or high concentrations of fine particles occur)

Warning: This device was designed in accordance with EN 61010-1

pollution degree 2. This implies that certain restrictions in use apply that

are related to pollution which can occur within the environment of use. Refer

to the table above.

This device is only suitable for measurements in Pollution

degree class 2 environments.

9. Specifications

This device is not calibrated when purchased!

Regulations concerning environment of use:

Use this meter only for measurements in CAT I, CAT II and CAT III

environments (see §7)

Use this meter only in a pollution degree 2 environment (see §8)

Ideal working conditions include:

temperature: 18 °C to 28 °C (64 °F to 82 °F)

relative humidity: max. 80 %

altitude: max. 2000 m (6560 ft)

voltage ........................................................................... 600 V

fuse protection................................. F250 mA/600 V, F10 A/600 V

power supply ....................................1 x 9 V 6F22 alkaline battery

display............................................................ LCD, 1999 counts

display dimensions ...................................................45 x 18 mm

sampling rate................................................................ 2-3/sec.

measuring method.................. dual-slope integration A/D converter

over-range .......................................................................... “1”

continuity buzzer..................................................................yes

transistor test ......................................................................yes

diode test............................................................................yes

low-battery indication ...........................................................yes

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ranging mode ................................................................ manual

ranges ................................................................................. 19

data hold ............................................................................yes

backlight.............................................................................yes

auto power-off ...................................................................... no

dimensions..................................................... 68 x 138 x 30 mm

weight (with battery) ..................................................... ± 170 g

storage temperature ............................................ -10 °C to 50 °C

test lead probe (incl.)..................... CAT III 600 V, 10 A; L = 80 cm

9.1 DC VOLTAGE

Do not measure circuits that may contain voltages

> 600 V

range

resolution

accuracy

200 mV

0.1 mV

± (0.5 % rdg + 2 digits)

2000 mV

1 mV

20 V

10 mV

200 V

100 mV

600 V

1 V

± (0.8 % rdg + 2 digits)

Overload protection: 250 V rms for 200 mV range; 600 V DC or AC rms for

all other ranges

9.2 AC VOLTAGE

Do not measure circuits that may contain voltages

> 600 V

range

resolution

accuracy

200 V

100 mV

± (1.2 % rdg + 10 digits)

600 V

1 V

Average sensing, calibrated to rms of sine wave

Frequency range: 40-400 Hz

Overload protection: 600 V DC or AC rms

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9.3 DC CURRENT

Do not measure circuits that may contain voltages

> 600 V

range

resolution

accuracy

20 µA

0.01 µA

± (1.0 % rdg + 2 digits)

200 µA

0.1 µA

2000 µA

1 µA

20 mA

10 µA

200 mA

100 µA

± (1.5 % rdg + 2 digits)

10 A

10 mA

± (3.0 % rdg + 2 digits)

Overload protection: F250 mV/600 V, F10 A/600 V fuse

Note: 10 A up to 15 seconds every 10 minutes

9.4 RESISTANCE

Do not conduct resistance measurements on live

circuits

range

resolution

accuracy

200 Ω

0.1 Ω

± (0.8 % rdg + 3 digits)

2000 Ω

1 Ω

± (0.8 % rdg + 2 digits)

20k Ω

10 Ω

200k Ω

100 Ω

2000k Ω

1k Ω

± (1.0 % rdg + 2 digits)

Overload protection: F250 mV/600 V fuse

Maximum open-circuit voltage: 3.2 V

9.5 DIODE AND CONTINUITY

Do not conduct diode or continuity measurements on

live circuits

range

description

if continuity exists (less than 40 ), built-in buzzer will

sound

displays the diode's approx. forward voltage drop

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