EMOS EM305A Handleiding

EMOS Multimeter EM305A

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M0305 - EM305A

GB CLAMP MULTIMETER

CZ KLEŠŤOVÝ MULTIMETR

SK KLIEŠŤOVÝ MULTIMETER

PL MULTIMETR CĘGOWY

HU LAKATFOGÓ MULTIMÉTER

KLEŠČNI MULTIMETER

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STRUJNA KLIJEŠTA

DE ZANGENMULTIMETER

UA КЛЕЩІ  МУЛЬТИМЕТР

RO MULTIMETRU CLEŞTE

LT SROVĖS MATAVIMO REPLĖS

LV SPAIĻU MULTIMETRS

2202015000_31-M0305 148 × 210 mm

EM305A – CLAMP MULTIMETER

Before you start using EM305A clamp multimeter read carefully this

Instruction Manual.

There are highlighted important selected passages which deal with the

occupational safety of this device. This is the way how to avoid electrical

accidents or damage to this device.

The clamp multimeter was designed in compliance with IEC-61010 related

to electronic measuring equipment falling into the category (CAT III 600V),

safety class II and pollution level 2.

Electrical Symbols

alternating current (AC)

direct current (DC)

warning – read the instruction before use

risk of electric shock

earthing

Certicate of Conformity (CE)

equipment is protected by double insulation and reinforced

insulation

WARNING

Pay close attention to the following instructions:

• Before you start using the multimeter check carefully the device for

damage. In case you nd evident damage, do not make any measure-

ments! Check the surface for scratches and unglued side joints.

• Check insulation on measuring probes and jaws. When the insulation

is damaged the risk of electric shock may occur. Do not use damaged

measuring probes and jaws!

• Do not measure voltage higher than 600 Vor current higher than 600A!

• Clamp “COM“ must be connected to the reference measuring earth.

• If you nd out abnormal measurement results, do not use the mul-

timeter. In case you are not sure about the cause of fault, contact the

service centre.

• Do not measure higher voltage and current values than those which

are marked on the front panel of the multimeter and jaws. There is arisk

of electric shock and damage to the multimeter!

• Before the use verify the right function of the multimeter. Test the circuit

of which you know the electric parameters.

• Before you connect the multimeter to the circuit for which you want

to measure current, switch o supply of the given circuit.

• Do not use and store the multimeter in the space with high temperature,

dustiness and humidity. We also do not recommend using the device

where strong magnetic eld occurs or where the risk of explosion or

re occurs.

• When replacing the battery or other parts of the multimeter, use spare

parts of the same type and specication. Replace the parts only when

the multimeter is o and disconnected!

• Do not change or modify the inner circuits of the multimenter in any

way!

• Pay close attention to measurement of voltage higher than 30 VACrms,

peak 42 Vor 60 VDC. There is arisk of electrical injury!

• When handling the measuring tips, make sure you hold them behind

the nger barrier.

• To avoid electrical injury do not touch any bare conductors with your

hand or skin.

• Before you open the multimeter cover, disconnect the measuring tips

from the tested circuit.

• Do not make measurements when the multimeter cover is removed

or loose.

• As soon as the at battery icon appears “ “, replace the battery.

Otherwise the performed measurements can be inaccurate.

CATIII – measurement category III is designated for measurements of

house installation.

The example are measurements of distributions, circuit breakers, electric

installations, including cables, busbars, connection boxes, switches, sock-

ets, equipment for industrial use and some other equipment as stationary

engines with permanent connection to the xed installation. Do not use

the device for measuring in category IV.

WARNING

Use the multimeter EM305A only in the way specied below, otherwise

damage to the device or your health can occur. Pay attention to the

following instructions:

• Before you measure resistance, diodes or current, disconnect the circuits

from the power supply and discharge high-voltage condensers.

• Before measuring, make sure that acircular switch of the measurement

range is in the right position. Do not make any changes in the measure-

ment range during the measuring process (indexing the circular switch

of measuring programmes) in any case! It could result in damage to

the device.

• If you measure current, switch o the circuit supply before connecting

the multimeter.

Device Description

The clamp multimeter EM305A is of the range of compact devices with a3.5

digital display designated for the measurement of direct and alternating

voltage, alternating current, resistance, diode testing and sound tests of

conductivity and circuits.

The multimetr is equipped with an automatic range for measuring values.

It indicates exceeding the measured range. It has an automatic break

function. The multimeter provides an overload protection and informs

on the battery low conditions.

The multimeter EM305A is suitable for using e.g. in workshops, laboratories

and households.

Technical Parameters

Display: LCD, 1999 (digitals 3.5) with automatic

polarity indication

Method of measurement: double downwards integration by

A/D converter

Reading rate: 3× per second

Span of jaws: 25 mm

Max. measured conductor: Ø 25 mm

Working temperature: 0 °C to 40 °C < 75 %

Storing temperature: -20°C to 50°C, relative humidity < 85 %

Supply: 2× 3 VCR2032

Low battery: indication by symbols on the display

Indication of exceeding

the range: number imaging „OL“ to LCD

Category of measurement: CAT III (600 V)

Dimensions and weight: 190 × 76 × 36 mm; 160 g (including batteries)

ACCESSORIES

Manual: 1 pc

Testing conductors: 1 pair

Battery: 2 pcs CR2032, 3 V

Front view of the multimeter

1. Jaws

They are used for enclosing aconductor when measuring the current.

2. FUNC./HOLD button (holding data on the display)

It is used for entering the mode for holding measuring data or n-

ishing this mode (it applies to measurement of voltage, current and

resistance). It is used for switching between adiode test or continuity

test when arotary switch is in position.

3. Display

3.5 digital LCD display with max. measurement data 1999.

4. “COM“ clamp

Connecting clamp for the black (negative) testing conductor.

5. Clamp

Connecting clamp for the red (positive) testing conductor.

6. Rotary switch

It is used for selecting the required function and also for on/o function

of the measuring device.

If you are not using the measuring device, place the rotary switch in

OFF position.

7. Lever

It is used for opening and closing the jaws.

8. Grasp protection

It is designated for ngers protection against touching the testing

conductor. Do not hold the measuring device beyond this grasp

protection.

In-built buzzer:

When pushing the FUNC./HOLD button, the buzzer gets switched on

provided that the function of this button is active.

Before the measuring device automatically is switched o, it emits 5 short

beeps, later after one minute, it emits along beep and then it automat-

ically switches o.

Note:

When the current range of 2/20A is set up, the buzzer is not active.

Accuracy of measurement

The accuracy is specied for the period of one year after calibration and at

the temperature of 18°C~28°C with relative humidity of 75 %.

Accuracy specications are of the following form:

±([% data on the device]+[number of the lowest valid digits])

Direct voltage (DC)

Range Denition Accuracy Overload

protection

200 mV 0,1 mV ± (0,5% + 5)

600V rms

2 V 1 mV

± (0,8% + 5)20 V 10 mV

200 V 100 mV

600 V 1 V ± (1% + 5)

Input impedance: 10 MΩ

Max. permitted input voltage: 600 VDC

Alternating voltage (AC)

Range Denition Accuracy Overload

protection

2 V 1 mV

± (1,2% + 5) 600V rms

20 V 10 mV

200 V 100 mV

600 V 1 V ± (1,5% + 5)

Input: 10 MΩ

Frequency range: 40 Hz – 400 Hz

Max. permitted input voltage: 600V ef.

Response: average, calibrated to the eective value of sinusoidal wave

Alternating Current (AC)

Range Denition Accuracy Overload

protection

2 A 0,001 A ≤ 0,4A ± (6% + 20)

600 A rms

> 0,4A ± (5% + 10)

20 A 0,01 A ≤ 4A ± (4% + 10)

> 4A ± (3% + 8)

200 A 0,1 A ± (2,5% + 5)

600 A 1 A

Frequency range: 50 Hz – 60 Hz

Max. permitted input current: 600 AResponse: average, calibrated to

the eective value of sinusoidal wave.

Resistance

Range Denition Accuracy Overload

protection

200 Ω 100mΩ ± (1,2% + 5)

600V peak

2 kΩ 1Ω

± (1,0% + 5)20 kΩ 10 Ω

200 kΩ 100 Ω

2 MΩ 1 kΩ ± (1,2% + 5)

20 MΩ 10kΩ ± (1,5% + 5)

Circuit Continuity Test Coherence

Range Denition Description Overload

protection

100 mΩ

When resist-

ance is lower

than about 30Ω,

the buzzer gets

switched on

600V peak

Note:

When resistance is between 30 Ω and 100 Ω, the buzzer can but it does

not have to sound.

When resistance is higher than 100 Ω, the buzzer does not sound.

Diode Test

Range Denition Description Overload

protection

1 mV

Rough voltage depletion

appears in forward direction.

Voltage at open circuit:

About 1,48

600V peak

Mode of Holding Measurement Data

By pushing the FUNC./HOLD button measurement data appear on the

display.

Symbol D.H. displays as an indicator.

If you want to nish the mode, push the button again.

D.H. symbol disappears.

It applies to the modes for measuring voltage, current and resistance.

Measurement of Direct Voltage (DC)

1. Connect the black test conductor to the clamp „COM“ and the red test

conductor to the clamp .

2. Set the rotary switch to position .

3. Connect the test conductor to the measured source or circuit.

4. The measured value appears on the display.

Also polarity of connection of the red test conductor appears.

Note:

To prevent electric shock or damage to the measuring device do not

connect the clamps to voltage higher than 600V.

Measurement of Alternating Voltage (AC)

1. Connect the black test conductor to the clamp “COM“ and the red test

conductor to the clamp .

2. Set the rotary switch to position .

3. Connect the test conductor to the measuring source or circuit.

4. The measured value appears on the display.

Note:

To prevent electric shock or damage to the measuring device do not

connect the clamps to voltage higher than 600V.

Measurement of Alternating Current (AC)

1. Set the rotary switch to position 2/20A~, 200/600A~ for measuring

alternating current.

2. Push the lever and enclose the measured conductor with the jaws.

Check the jaws for perfect closure.

Note:

a. Only one conductor can be enclosed by the jaws each time.

b. For obtaining accurate data the conductor must be in the middle of

the jaws.

c. Do not touch any conductor by hand or skin.

4. The measured value appears on the display.

Note:

1. Before you start measuring, disconnect all test conductors from the

measuring device.

Product specificaties

Merk:	EMOS
Categorie:	Multimeter
Model:	EM305A
Gebruikershandleiding:	Ja
Ondersteuning voor plaatsing:	Draagbare multimeter
Accu/Batterij voltage:	3 V
Ondersteund aantal accu's/batterijen:	2
DC voltage bereik:	0.2 - 600 V
Batterijen inbegrepen:	Ja
Type product:	Analoge multimeter
AC voltage bereik:	2 - 600 V
AC stroom bereik:	2 - 600 A