Velleman EVM892 Bedienungsanleitung

EVM892

MULTIFUNCTIONAL DIGITAL MULTIMETER

MULTIFUNCTIONELE DIGITALE MULTIMETER

MULTIMÈTRE NUMÉRIQUE MULTIFONCTIONS

MULTÍMETRO DIGITAL MULTIFUNCIÓN

MULTIFUNKTIONALES DIGITALMULTIMETER

USER MANUAL 3

GEBRUIKERSHANDLEIDING 14

NOTICE D’EMPLOI 27

MANUAL DEL USUARIO 39

BEDIENUNGSANLEITUNG 51

MANUAL DO UTILIZADOR 64

EVM892

29.04.2010 ©Velleman nv

EVM892

29.04.2010 ©Velleman nv

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, don't install

or use it and contact your dealer.

The DVM892 is a 600V CAT II digital multi-meter with a 3½ digit LCD. This device

is can be used to measure direct and alternating voltages, direct and alternating

currents, resistance, continuity, capacity, temperature, frequency, diode and

transistors (hFE).

Be very careful when using this device: carelessness can lead to serious or even

fatal injury. Besides the usual safety-precautions for working with electrical circuits

you must follow the safety guidelines as described in this manual. Do not use this

device if you do not have preliminary knowledge of circuits and test procedures.

This device is not suitable for commercial or industrial use.

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.

alternating: A = alternating current (AC); V = AC voltages

direct: A = direct current(DC); V =DC voltages

Double insulation (class II-protection)

Earth

Fuse

Resettable fuse

Diode

EVM892

29.04.2010 ©Velleman nv

Continuity

/ON/OFF

3. Warnings and 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

ensuin

defects or

roblems.

WARNING:

o avoid electrical shock always disconnect the test

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

fuses with the same specifications as shown.

Remark: refer to the warnin

on the back of the mete

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

measurin

errors.

This is an installation category CAT II 600V measuring

instrument. Never use this equipment in a higher category than

indicated. Refer to §4 Overvolta

e /installation cate

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 de

ree.

Before each use, make sure the test probes are in good condition.

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.

Make sure the meter is in the appropriate measuring range before

connecting it to a test circuit.

Risk of electric shock during operation. Be very careful when

measuring live circuits. Use extreme caution when measuring

volta

es hi

her than 60Vdc or 30Vac rms.

Do not measure circuits that may contain voltages > 600V

Do not measure current in circuits with voltages > 250V

Do not conduct resistance, diode- or continuity measurements on

live circuits. For transistor tests, use the included transistor socket.

EVM892

29.04.2010 ©Velleman nv

When measuring currents up to 10A, max. 10s continuous

measurement followed by a 15 minutes break between 2

measurements.

When carrying out measurements on a TV set or switching power

circuits, always be aware that high amplitude voltage pulses at the

test

oints mi

ht dama

e the meter.

Do not replace internal parts yourself. Replace damaged or lost

accessories by identical ones with the same specifications. Order

are accessories e.

. test

robes at

our 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

the warrant

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 which are not directly connected to mains power, e.g. electronics

circuits, control si

nals…

CAT II

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

and mono-phase appliances which are connected to the mains by means of

a plug and circuits in a normal domestic environment, provided that the

circuit is at least 10m apart from a CAT III- or 20m apart from a CAT IV-

environment. E.

. household a

liances,

ortable 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 10m apart from of a CAT IV-

environment, and for measurements in or on distribution level equipment

(

fuse boxes, li

htin

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

II 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 600V on:

•Protected electronic circuits which are not directly connected to mains power,

e.g. electronics circuits, control signals, circuits behind isolating transformer…

•circuits which are directly connected to mains power, but limited to:

EVM892

29.04.2010 ©Velleman nv

omeasurements on mono-phase appliances which are connected to the

mains by means of a plug

omono-phase appliances and circuits directly connected to the mains in a

normal domestic environment, provided that the circuit is at least 10m

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

household appliances, portable tools, light circuits at more than 10m

from a distribution board …

This device is NOT suitable for:

•Voltages above 600V

•measurements in/on low-voltage distribution boards (distribution boards

behind meter box)

•measurements on (fixed) mono- or poly-phased appliances and circuits in CAT

III / CAT IV-environments (e.g. mains outlets, electric ovens, lighting circuits,

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

•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 600V in CAT II

environments.

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 DVM indicates in which environment

the device may be used.

Pollution

ree 1 No pollution or only dry, nonconductive pollution occurs. The pollution

has no influence

(

onl

to be found in hermeticall

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 cate

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

reci

itation

)

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

articles 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.

EVM892

29.04.2010 ©Velleman nv

6. Description of the front panel

Refer to the illustrations on page 2 of this manual.

1 LCD 5 "COM" jack

2 Power ON/OFF button 6 "VΩHz" jack

3 "10A" jack 7 RANGE and FUNCTION switch

4 "mA/TEMP/CAP/hFe" jack

Power ON/OFF button

This push-button activates and deactivates the device. The DVM892 is also

equipped with an energy-saving feature: the meter is automatically deactivated

when the RANGE and FUNCTION selector has not been used for 15 minutes. The

user will have to press the ON/OFF button twice to switch the device on again

when the energy-saving feature has deactivated the DVM892.

RANGE and FUNCTION switch

This rotary switch is used to select the desired range or function. Always remove

the test probes from the device under test before selecting a different

range/function!

7. Maintenance / battery and fuse replacement

WARNING: To avoid electrical shock always disconnect the test leads

prior to opening the housing. To prevent fire hazards, install fuses with the

same specifications as shown.

Remark: refer to the warning on the back of the meter

Do not replace internal parts yourself. Replace damaged or lost

accessories by identical ones with the same specifications. Order spare

accessories e.g. test probes at your dealer.

Switch off the meter and remove test leads prior to replacing the battery or

fuses.

a. General maintenance:

•Wipe the device regularly with a moist, lint-free cloth. Do not use alcohol,

solvents or abrasive products.

b. Battery/fuse replacement

•Replace the battery as soon as the “ ” indication appears on the display.

Low/bad batteries can produce false readings. The fuse rarely needs to be

replaced and a blown fuse is almost always caused by a human error.

•Switch off the multi-meter.

•Remove test probes from the circuit under test. Remove all test leads from the

input jacks.

•Remove the protective cover and release the three screws at the back of the

meter and gently open the housing.

•Replace the battery (9V 6LF22). Do not use rechargeable batteries and insert

following the right polarity.

•To replace the fuse, carefully release the 4 screws that hold the PCB; these

screws are located at the top, around the LCD.

•Gently lift the PCB.

EVM892

29.04.2010 ©Velleman nv

•Replace the fuse (ceramic – high breaking capacity 5x20mm F10A/250V)

•Place the PCB back. Make sure the LCD connection, buttons and jacks are lined

up. Tighten the 4 screws.

•Close the housing and tighten the 3 screws. Put the protective cover back.

8. Accessories

•Set test probes 10A CAT II 600V

•Thermo couple type K, RVS probe (max. 400°C)

•Battery (inside meter)

•User manual

•Adaptor socket for easily measuring transistors and capacitors, and to connect

thermocouples.

•Cover: protects the meter and provides a comfortable grip. For positioning

features, refer to the images on page 2of this manual.

A & B: Use either the small or large foldable stand

C: Use the small stand to hang the meter to a wall: remove the small stand and

insert it in the slots near the top of the cover. Drive a nail in the wall and

hang the meter.

D: The test probes can be stored in the two provisions at the back.

9. Operating instructions

Risk of electric shock during operation. Be very careful when

measuring live circuits.

Before measuring, always make sure the meter and/or test probes

are not damaged and verify the connections, selected function and

range.

•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.

•Only use the meter in the indicated overvoltage/installation category. Never

measure voltages that might exceed the indicated category values.

•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 high amplitude voltage pulses at the test points might

damage the meter.

•Always be careful when working with voltages above 60Vdc or 30Vac rms. Keep

your fingers behind the probe barriers at all times during measurement.

•Do not measure current in circuits with voltages > 250V

•Never perform resistance, diode, transistor or continuity measurements on live

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

•Automatic power-off:

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.

EVM892

29.04.2010 ©Velleman nv

Limits of the meter:

FUNCTION RED LEAD

CONNECTION

INPUT LIMITS

200mV VΩHz 250V DC or rms AC

V& V ∼VΩHz 600V DC, 600V AC (sine wave)

Hz VΩHz 250V DC or rms AC

ΩVΩHz 250V DC or rms AC

/ VΩHz 250V DC or rms AC

mA & mA mA/temp/CAP/hFe 200mA DC or rms AC

10 & 10A 10A 10A DC or rms AC

for max. 10 seconds

Measuring voltages

•Connect the black test lead to the "COM" jack and the red test lead to the

"VΩHz" jack.

•Select the appropriate V (DC voltage)or V (AC voltage) range with the

FUNCTION switch. When the range is unknown, always select the highest

possible range and lower to the appropriate range.

•Connect the test probes to the circuit under test.

•The measured value appears on the display.

Notes:

•For DC-measurements: when a negative polarity is present at the red test

lead, the indicated value is preceded by a “-” sign.

•When the measured value is higher than the selected range limit, the display

will show “1”. Select a higher range.

Measuring currents

Do not measure current in circuits with voltages > 250V

Current measurements: mA/TEMP/CAP/hFE jack max. 200mA; for

measurements up to 10A use the 10A jack. When measuring currents up

to 10A, max. 10s continuous measurement followed by a 15 minutes break

between 2 measurements.

Always be careful when working with voltages above 60Vdc or 30Vac rms.

Keep your fingers behind the probe barriers at all times during

measurement.

•Connect the black test lead to the "COM" jack and the red test lead to the

"mA/TEMP/CAP/hFE" jack for measurements of max. 200mA or to "10A" jack for

measurements of max. 10A.

•Select the appropriate A (DC) or A (AC) range with the FUNCTION switch.

Select the 200m/20m10 range when the red test lead is connected to the

"mA/TEMP/CAP/hFE" jack; select the 20m10 range when the red test lead is

connected to the "10A" jack. When the range is unknown, always select the

highest possible range and lower to the appropriate range.

•Connect the test probes in series with the circuit.

•Read the measured value from the display.

Notes:

EVM892

29.04.2010 ©Velleman nv

•For DC-current measurements, when a negative polarity is present at the red

test lead, the indicated value is preceded by a “-” sign.

•The mA-range is protected against over-current with an automatic resettable

fuse type 200mA/250V; the 10A range is protected by a ceramic 10A/250V

fuse.

•When measuring currents up to 10A, max. 10s continuous measurement

followed by a 15 minutes break between 2 measurements.

Measuring resistance

Do not perform resistance measurements on live circuits.

•Connect the black test lead to the "COM" jack and the red test lead to the

"VΩHz" jack.

•Select the appropriate "Ω" range with the FUNCTION switch. When the range is

unknown, always select the highest possible range and lower to the appropriate

range.

•Connect the test probes to the circuit/component under test.

•The measured value appears on the display.

Notes:

•Never perform resistance measurements on a live circuit and make sure all

capacitors are completely discharged.

•To increase accuracy when measuring low resistance values, first hold the tips

of the measuring probes together to determine the resistance value of the

test leads. Subtract this value from the measured value of the circuit.

•For resistance measurements above 1Mthe meter needs a few seconds to

stabilize the read-out.

•Should the measured resistance exceed the selected range or in case of an

open circuit, the display will show “1”.

Testing diodes & continuity

Do not perform continuity or diode measurements on live circuits.

•Connect the black test lead to the "COM" jack and the red test lead to the

"VΩHz" jack.

•Select the 2K range for testing diode or the 200 for continuity tests.

•Connect the test leads to the circuit/component under test.

•Continuity:

When the measured resistance is less than 30a continuous beep is produced

and the resistance is displayed. Should the measured resistance exceed the

selected range or in case of an open circuit, the display will show “1”.

•Diode test:

Connect the red test lead to the anode; connect the black test lead to the

cathode of the diode. The meter will display the approximate forward voltage

drop. If the lead connection is reversed, the meter will display “1”.

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