Velleman DVM894 Bedienungsanleitung

DVM894

DIGITAL MULTIMETER 3½ DIGITS –32 RANGES

DIGITALE MULTIMETER 3½-DIGITS –32 BEREIKEN

MULTIMÈTRE NUMÉRIQUE 3½-DIGITS –32 GAMMES

MULTÍMETRO DIGITAL DE 3½ –32 RANGO

3½-STELLIGES MULTIMETER –32 BEREICHE

MULTIMETR CYFROWY LCD 3½ - 32 OPCJE

3½ DMM - 32 NÍVEIS

USER MANUAL 3

GEBRUIKERSHANDLEIDING 17

MODE D'EMPLOI 32

MANUAL DEL USUARIO 47

BEDIENUNGSANLEITUNG 61

INSTRUKCJA OBSŁUGI 76

MANUAL DO UTILIZADOR 92

DVM894

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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.

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

manual.

2. Used Symbols

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.

AC (Alternating Current)

DC (Direct Current)

Both AC and DC

Double insulation (class 2-protection)

Earth

Fuse

Capacitor

Diode

Continuity

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3. Safety Instructions

Read this manual thoroughly. Familiarise yourself with the functions of

the device before actually using it.

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.

WARNING: To avoid electrical shock always disconnect the test leads

prior to opening the housing. To prevent damage or injury, only use

batteries and fuses of the same type and ratings as specified in this

manual.

Remark: Refer to the warning on the back of the meter.

Keep the device away from children and unauthorised users.

Protect this device from shocks and abuse. Avoid brute force when

operating.

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.

This is an installation category CAT III 600V measuring

instrument. Never use this equipment in a higher category than

indicated. Refer to §4 Overvoltage/installation category.

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 §5 Pollution degree.

For your safety, use only the test leads supplied with the instrument.

Before use, check that they are in good condition. Do not use the meter

or test leads if they look damaged. When damaged, replace them with

test leads of the same type and with the same specifications.

Always place your fingers behind the protective edges of the test probes

while measuring!

Never touch free terminals when the meter is connected to a circuit.

Use the correct input terminals, function, and range for your

measurements. When the range of the value to be measured is unknown,

check that the range initially set on the meter is the highest possible.

To avoid damages to the instrument, do not exceed the maximum limits

of the input values as shown in the technical specifications tables.

Risk of electric shock during operation. Be very careful when

measuring live circuits. Use extreme caution when measuring voltages

higher than 60 VDC or 30 VAC rms.

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When using the mA terminal: do not measure current in circuits with

voltages > 250 V.

When using the 10A terminal: do not measure current in circuits with

voltages > 500 V.

Disconnect circuit power and discharge all high-voltage capacitors before

testing resistance, continuity, capacitance or diodes. For transistor tests,

use the included transistor socket.

In TV repair work or when carrying out measurements on power switching

circuits, remember that high-amplitude voltage pulses at the test points

can damage the meter. Use of a TV filter will attenuate any such pulses.

Do not replace internal parts yourself. Replace damaged or lost

accessories by identical ones with the same specifications. Order spare

accessories, e.g. test leads, from your dealer.

Switch off the meter and remove test probes prior to replacing the

battery or fuses.

All modifications of the device are forbidden for safety reasons. Damage

caused by user modifications to the device is not covered by the

warranty.

If the meter is used near a source of electromagnetic interference, the display

may become unstable or may indicate large errors.

Use the meter only as specified in this manual; otherwise, the protection

provided by the meter may be impaired.

Use extreme caution when working around bare conductors or bus bars.

Do not operate the meter near explosive gases, vapour, or dust.

Verify the meter’s operation by measuring a known voltage. Do not use the

meter if it operates abnormally. Protection may be impaired. When in doubt,

have the meter serviced by a qualified technician. Make sure the device cannot

be used until it is repaired.

When making connections, connect the common test lead (black) before

connecting the live test lead (red). When disconnecting, disconnect the live test

lead (red) before disconnecting the common test lead (black).

Before changing functions or measuring range, disconnect the test leads from

the circuit under test.

For all DC functions, to avoid the risk of shock due to possible improper

readings, verify the presence of any AC voltages first by using the AC function.

Then select a DC voltage range equal to or greater than the AC range.

Use a 9 V battery, properly installed in the meter’s battery case, to power the meter.

Replace the battery as soon as the battery indicator appears. With a low

battery, the meter may produce false readings that can lead to electric shock

and personal injury.

Do not operate the meter with the case (or part of the case) removed.

Always verify that all connections are reliable and safe.

Avoid body contact with ground potential (e.g. metallic terminals, output

sockets, lead clamp…) while measuring. Make sure to be electrically insulated

from ground during measurement.

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4. 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…

CAT II

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 a CAT IV

environment, and for measurements in or on distribution level

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

CAT IV

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 600V. 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 suitable for measurements up to 600 V:

measurements in/on low-voltage distribution boards (distribution boards behind

meter box)

measurements on (fixed) mono- or poly-phased appliances and circuits except

in CAT IV environments (e.g. mains outlets, electric ovens, lighting circuits, bus

bars, low-voltage distribution boards and circuit breakers).

This device is NOT suitable for:

Voltages above 1000 V

Measurements on distribution equipment and outdoor installations including

meter boxes and equipment/circuits outside or remote from the domestic

environment e.g. circuits in sheds, garden houses and free-standing garages, or

circuits using underground wiring e.g. garden lighting, pool-pump…

THIS DEVICE IS ONLY SUITABLE FOR MEASUREMENTS UP TO 600 V IN

CAT III.

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5. 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 DMM 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).

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.

6. Overview

Refer to the illustrations on page 2of this manual.

LCD display: 3 ½ digits, 2000 counts

power button

HOLD: to hold the last reading

rotary switch: to select functions and the desired ranges

input sockets

Display

low battery

Warning: To avoid false readings, which can possibly

lead to electric shocks or personal injury, replace the

battery as soon as the battery indicator appears.

negative input polarity indication

high-voltage symbol (600 VAC or 600 VDC)

HOLD

data-hold mode

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Input socket

COM

common inut terminal

V, Ω, Hz

TEMP

input terminal for all other measurements

hFE

input terminal for transistor, capacitance, and current

measurements

10A

input terminal for currents between 200 mA and 10 A

7. Use

7.1 Preparation

1. Switch on the meter by turning the rotary switch. If the battery voltage is

lower than 7 V, the low-battery symbol will appear and the batteries should

be replaced.

2. The warning symbol next to the input lead shows that the input voltage or

current should not exceed the specified value in order to protect the internal

circuit from damage.

3. Turn the rotary switch to the required function and range to be measured.

4. Choose the highest range when the value to be measured is unknown.

5. When making connection, connect the common test lead first and then the

powered test lead.

6. Remove the charged test lead first when disconnecting.

7.2 Readings Hold

1. Press HOLD to hold the reading of the current measurements.

2. Press HOLD again to release the reading.

7.3 AC/DC Voltage Measurement

USE CAUTION WHEN MEASURING HIGH-VOLTAGE CIRCUITS TO AVOID

ELECTRICAL SHOCK AND INJURY. DO NOT TEST VOLTAGES HIGHER THAN

600 V AC/DC.

1. Plug the black test lead into the COM jack and the red test lead into the

VTempΩ Hz jack.

2. Set the rotary switch to the V position for DC measurement and V for AC

measurement. Select the proper range.

3. Connect the test leads to the voltage source or load for measurement.

4. Read the value on the main indicator of the LCD. The polarity symbol denotes

the polarity of the end connected by the red test lead.

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Notes

At small voltage ranges, unsteady readings will appear before the test leads

make contact with the circuit. This is normal since the meter is highly sensitive.

When the test leads are connected to the circuit, the tru readings will be shown.

When 1 appears on the LCD, it means the measurement has exceeded the

allowable range. A higher range should be selected.

When the scale of the value to be measured is unknown, select the highest

range first and lower the range accordingly.

7.4 AC/DC Current Measurement

USE CAUTION WHEN MEASURING HIGH-VOLTAGE CIRCUITS TO AVOID

ELECTRICAL SHOCK AND INJURY. DO NOT TEST VOLTAGES HIGHER THAN

600 V AC/DC.

TO AVOID ELECTRICAL SHOCK AND INJURY, POWER OFF THE CIRCUIT AND

DISCHARGE THE CAPACITORS BEFORE MEASURING CURRENT.

1. Plug the black test lead into the COM jack.

2. When the current to be measured is under 200 mA, plug the red test lead into

the mA jack. When the current to be measured is between 200 mA and 10 A,

plug the red test lead into the 10A jack.

3. Set the rotary switch to the A position for DC measurement and A for AC

measurement. Select the proper range.

4. Connect the test leads to the circuit.

5. Read the value on the display.

6. The polarity symbol denotes the polarity of the red test lead.

Notes

When 1 appears on the LCD, it means the measurement has exceeded the

allowable range. A higher range should be selected.

When the scale of the value to be measured is unknown, select the highest

range first and lower the range accordingly.

The warning symbol indicates that the maximum current of the mA jack is

200 mA and the maximum current of the 10A jack is 10 A. At either jack,

current exceeding the limit will blow the fuse.

7.5 Resistance Measurement

TO AVOID ELECTRICAL SHOCK AND INJURY, POWER OFF THE CIRCUIT AND

DISCHARGE THE CAPACITORS BEFORE MEASURING RESISTANCE.

1. Plug the black test lead into the COM jack and the red test lead into the

VTempΩ Hz jack.

2. Set the rotary switch to the Ω position and select the proper range.

3. Connect the test leads to the ends of the resistor or circuit.

4. Read the value on the LCD.

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Notes

When the input is open, 1 is displayed on the LCD to indicate overload. For

measuring resistance above 1 MΩ, it may take a few seconds to get a steady

reading. This is normal for high-resistance measurement.

7.6 Diode

1. Plug the black test lead into the COM jack and the red test lead into the

VTempΩ Hz jack.

2. Set the rotary switch to the position.

3. Connect the red test lead to the anode and the black test lead to the cathode

of the diode for testing.

4. Read the value on the LCD.

Notes

The meter will show the approximate forward voltage drop of the diode.

When the test leads are reversed or opened, 1 will appear on the LCD.

7.7 Continuity

TO AVOID ELECTRICAL SHOCK AND INJURY, POWER OFF THE CIRCUIT AND

DISCHARGE THE CAPACITORS BEFORE MEASURING CONTINUITY.

1. Plug the black test lead into the COM jack and the red test lead into the

VTempΩ Hz jack.

2. Set the rotary switch to the position.

3. Connect the test leads to two ends of the circuit. If resistance of the circuit is

less than 50 Ω, the built-in buzzer will sound.

7.8 Capacitance

TO AVOID ELECTRICAL SHOCK AND INJURY, POWER OFF THE CIRCUIT AND

DISCHARGE THE CAPACITORS BEFORE MEASURING CAPACITANCE.

1. Plug the black test lead into the COM jack and the red test lead into the

hFE mA jack.

2. Set the rotary switch to the position and select the proper range.

3. Connect the test leads to two ends of the circuit/capacitor and read the value

on the LCD.

7.9 Frequency Measurement

1. Plug the black test lead into the COM jack and the red test lead into the

VTempΩ Hz jack.

2. Set the rotary switch to the Hz position.

3. Connect the test leads to two ends of the circuit and read the value on the

LCD.

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