Martindale Electric VT4 Manuel utilisateur

VT4 VOLTAGE

TESTER

Instruction

Manual

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ALWAYS READ THESE INSTRUCTIONS

BEFORE PROCEEDING

Thank you for buying one of our products. For

safety and full understanding of its beneﬁts

please read this manual before use. Technical

support is available from 01923 441717 and

support@martindale-electric.co.uk.

CONTENTS

1 Safety Information 1

1.1 Meaning of Symbols and Markings 1

1.2 Precautions 2

2 Introduction 4

2.1 Inspection 4

2.2 Description 4

2.3 Accessories 4

2.4 Battery Installation 4

3 Operation 5

3.1 VT4 Layout 5

3.2 ON/OFF and Voltage Sensitivity 5

Range Button

3.3 Low Battery Indication 6

3.4 Torch 6

3.5 Proving Check 6

3.6 Testing Considerations 7

3.7 Testing for the Presence of Voltage 7

4 Maintenance 9

4.1 Battery Replacement 9

4.2 Cleaning 9

4.3 Repair and Service 10

4.4 Storage Conditions 10

5 Warranty 11

Speciﬁcations

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1 SAFETY INFORMATION

REMEMBER:

SAFETY IS NO ACCIDENT

These instructions contain both information

and warnings that are necessary for the safe

operation and maintenance of this product. It

is recommended that you read the instructions

carefully and ensure that the contents are fully

understood. Failure to understand and to comply

with the warnings and instructions can result in

serious injury, damage or even death.

Particular attention should be paid to the Warnings,

Precautions and Technical Speciﬁcations.

Please keep these instructions for future reference.

Updated instructions and product information are

available at: www.martindale-electric.co.uk

1.1 Meaning of Symbols and Markings

Caution - risk of danger & refer to

instructions

Caution - risk of electric shock

Equipment protected by double or

reinforced insulation (Class II)

CAT IV (Measurement Category IV) is applicable

to test and measuring equipment

connected at the source of the building’s

low-voltage MAINS installation.

For further information on measurement

categories visit www.martindale-electric.

co.uk/measurement_categories.php

Equipment complies with relevant EU

Directives

End of life disposal of this equipment

should be in accordance with relevant

EU Directives

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1.2 Precautions

This product has been designed with your safety

in mind, but please pay attention to the following

warnings and cautions before use.

Warnings

In order to avoid the danger of electrical shock, it

is important that proper safety measures are taken

when working with voltages exceeding 30V AC

rms, 42V AC peak or 60V DC.

Where applicable other safety measures such as

the use of protective gloves, goggles etc. should be

employed.

The voltage tester must only be used by a skilled

and competent person who is familiar with the

relevant regulations, the safety risks involved and

the consequent normal safe working practices,

and under the conditions and for the purposes for

which it has been constructed and speciﬁed.

Before each use the voltage tester should be

examined for damage, cracks, cuts or scratches.

Do not use if damaged in any way.

Make sure the voltage tester is dry, clean and free

from dust, grease and moisture while in use to

avoid the danger from electric shock due to surface

leakage.

Before and after each use, the voltage tester must

be proven using a suitable known good AC voltage

source. Do not use the voltage tester if it does not

function correctly during proving.

Testing for a voltage that exceeds the speciﬁed

limits of the voltage tester may damage the voltage

tester and may expose the operator to a shock

hazard. Always check the voltage testers speciﬁed

limits before use.

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Do not use if the battery compartment end cap

is not ﬁtted.

Always keep your ﬁngers behind the ﬁnger

guard.

Do not use the voltage tester during rain or

precipitation.

The voltage tester will not detect DC voltage.

Cautions

Avoid severe mechanical shock or vibration and

extreme temperature.

To avoid corrosion from leaking batteries, remove

the batteries when the unit is not in use for an

extended period.

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2. INTRODUCTION

2.1 Inspection

Examine the shipping carton for any sign of

damage. Inspect the unit and any accessories for

damage. If there is any damage then consult your

distributor immediately.

2.2 Description

The Martindale VT4 is a non-contact voltage

tester with the following features:

Contactless voltage testing between 12V and

1000V

Manual voltage sensitivity range selection:

12-1000V and 50-1000V

Use of advanced digital ﬁlter technology for

reliable indication

Torch

Auto power off

Measurement category CAT IV 1000V

Designed to meet BS EN 61010-1

IP64 rating to BS EN 60529

2.3 Accessories

The VT4 comes with the following accessories:

2 x 1.5V Alkaline AAA batteries

Instructions

2.4 Battery Installation

Refer to Section 4.1 (Battery Replacement) for

the battery installation instructions for the VT4.

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3. OPERATION

3.1 VT4 Layout

5 6 7

1Test tip for voltage test

2Torch

3LED illumination area

4Hand grip area

5On/Off and voltage sensitivity range button

6Torch button

7Battery compartment end cap

3.2 ON/OFF and Voltage Sensitivity Range

Button

Pressing the ON/OFF button (5) for 1 second

will turn on the VT4. The red LED in the LED

illumination area (3) will ﬂash at a rate of once a

second to indicate the unit is activated.

The VT4 will default to the 50 to 1000V voltage

sensitivity range.

To change the voltage sensitivity range to 12V to

1000V, press the voltage sensitivity range button

(5) for less than 1 second. The red LED in the LED

illumination area (3) will now double ﬂash at a rate

of once a second.

To power off the unit press the ON/OFF button (5)

for at least 2 seconds. The ﬂashing red LED will

cease.

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The unit will auto power off after 5 minutes.

3.3 Low Battery Indication

If the red LED illuminates continuously without

the buzzer sounding, the batteries require

replacing as reliable indication can no longer

be guaranteed. Refer to Section 4.1 (Battery

Replacement).

3.4 Torch

To turn on the torch (2), press and hold the torch

button (6).

3.5 Proving Check

Before each use the voltage tester should be

examined for cracks or any other damage. If

there is any doubt the voltage tester should not

be used.

Before and after use, verify the voltage tester

is functioning correctly using a known good AC

voltage source. The AC voltage source must be

within the speciﬁed range of the voltage tester.

When the test tip (1) is held in close proximity to

the voltage source, the red LED must illuminate

and the buzzer must sound as in table 1, for the

selected voltage sensitivity range setting.

Table 1

Voltage

sensitivity

range

Red LED Buzzer

12V to 1000V Flashing Pulsed

50V to 1000V Continuous

Do not use the voltage tester if it does not

function correctly during proving.

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Warning

If the voltage source exceeds the speciﬁed

limits of the voltage tester the voltage tester

may be damaged and the operator may be

exposed to a shock hazard. Always check the

voltage magnitude of the voltage source before

proceeding with a proving check.

3.6 Testing Considerations

From some directions the neutral and earth

conductors in cables will shield the live, so

it is important that a cable is probed from all

directions.

When testing for the presence of voltage in multi-

core cables always run the probe tip along a short

length of cable so as to overcome the shielding

effect of the natural twist in conductors.

Be aware that if the presence of AC voltage

is not indicated, voltage could still be present. The

unit indicates active voltages in the presence of

electrostatic ﬁelds. If the ﬁeld strength is low the

unit may not indicate. This could be due to factors

such as:

Low mains voltage (<12V AC)

Shielded wire/cables

Thickness and types of insulation

Distance from the voltage source

If testing at locations with high background noise

levels, always determine whether the buzzer is

perceptible before relying solely on the buzzer

indication.

3.7 Testing for the Presence of Voltage

Non-contact voltage testers are not suitable

to determine if a circuit is not hazardous live. A

double pole voltage test should always be used

for that purpose.

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Referring to section 3.2 power on the VT4 and

set it to the required voltage sensitivity range.

The voltage tester must be gripped fully and

ﬁrmly around the hand grip to obtain optimum

and consistent sensitivity. A loose grip during

testing may reduce the voltage tester’s sensitivity.

While taking all required safety precautions

position the test tip (1) of the VT4 in close

proximity to the cable, UUT or location to be

tested for voltage.

If a voltage is detected, the red LED will

illuminate and the buzzer will sound as in table 1

for the selected voltage sensitivity range setting.

Switch the tester off when not in use to conserve

battery power.

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4. MAINTENANCE

4.1 Battery Replacement

To gain access to the battery compartment,

press down on the square recess and pull back

the battery compartment end cap (7).

Fit 2 new 1.5V, AAA alkaline batteries (IEC LR03,

NEDA 24A), observing correct polarity.

Replace the battery compartment end cap.

Note: Do not mix old and new batteries.

4.2 Cleaning

Warning

To reduce the risk of surface leakage, this

instrument must be kept in a clean condition.

If contamination is found, clean with a damp

soft cloth and if necessary a mild detergent or

alcohol. Do not use abrasives, abrasive solvents,

or detergents which can cause damage to the

unit. If a mild detergent is used, the unit should

subsequently be thoroughly cleaned with a water

dampened soft cloth. After cleaning, dry and

allow to remain in a dry environment for 2 hours

before use.

Square recess

Pull

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4.3 Repair and Service

There are no user serviceable parts in this unit.

Return to Martindale Electric if faulty. Our service

department will quote promptly to repair any fault

that occurs outside the guarantee period.

Before the unit is returned, please ensure that

you have checked the unit and batteries.

4.4 Storage Conditions

The instrument should be kept in warm dry

conditions away from direct sources of heat or

sunlight, and in such a manner as to preserve

the working life of the unit. It is strongly advised

that the unit is not kept in a tool box where other

tools may damage it.

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5. WARRANTY AND LIMITATION OF LIABILITY

This Martindale product is warranted to be free

from defects in material and workmanship under

normal use and service. The warranty period

is 2 years and begins on the date of receipt by

the end user. This warranty extends only to the

original buyer or end-user customer, and does

not apply to fuses, disposable batteries, test

leads or to any product which, in Martindale’s

opinion, has been misused, altered, neglected,

contaminated, or damaged by accident or

abnormal conditions of operation, handling or

storage.

Martindale authorised resellers shall extend

this warranty on new and unused products to

end-user customers only but have no authority to

extend a greater or different warranty on behalf

of Martindale.

Martindale’s warranty obligation is limited, at

Martindale’s option, to refund of the purchase

price, free of charge repair, or replacement of a

defective product which is returned to Martindale

within the warranty period.

This warranty is the buyer’s sole and exclusive

remedy and is in lieu of all other warranties,

expressed or implied, including but not limited to

any implied warranty of merchantability or ﬁtness

for a particular purpose. Martindale shall not

be liable for any special, indirect, incidental or

consequential damages or losses, including loss

of data, arising from any cause or theory.

Since some jurisdictions do not allow limitation of

the term of an implied warranty, or exclusion or

limitation of incidental or consequential damages,

the limitations and exclusions of this warranty

may not apply to every buyer. If any part of

any provision of this warranty is held invalid or

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unenforceable by a court or other decision-maker

of competent jurisdiction, such holding will not

affect the validity or enforceability of any other

provision or other part of that provision.

Nothing in this statement reduces your statutory

rights.

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SpeciÀcation

VT4 Voltage Tester

Electrical

Maximum voltage: 1000V AC rms

Voltage sensitivity ranges:

12 to 1000V AC rms

50 to 1000V AC rms (default range)

Frequency range: 50 to 400Hz

Environmental

Temperature & Humidity (Operating & Storage):

0°C to 40°C d80% R.H.

Altitude: up to 2000m

Pollution degree 2

General

Power: 2 x 1.5V, AAA alkaline batteries (IEC LR03,

NEDA 24A)

Battery consumption: 80mA approx.

Dimensions: 155(L) x 23(W) x 25(D) mm

Weight: 55g approx.

Includes: 2 x 1.5V AAA batteries, instructions

Safety

Conforms to BS EN61010-1:2010 CAT IV 1000 V

Class II, Double insulation

IP rating: IP64 to BSEN 60529

EMC

Conforms to BS EN61326-1

VT4 instructions rev2.indd 4 19/06/2014 10:09:16

Check out what else you can get from Martindale:

VT4 instructions rev2.indd 1 19/06/2014 10:09:07

MartindaleElectricCoLtd,

MetrohmHouse,ImperialPark,ImperialWay,

Watford,Hertfordshire,WD244PP,UK

Tel: +44(0)1923 441717 Fax: +44 (0)1923 446900

E-mail: [email protected]

Website: www.martindale-electric.co.uk

Registered in England No. 3387451. E. & O.E.

LITVT4 Rev2

•18th Edition Testers

•Accessories

•Calibration Equipment

•Continuity Testers

•Electricians’ Kits

•Environmental Products

•Full Calibration & Repair Service

•Fuse Finders

•Digital Clamp Meters

•Digital Multimeters

•Labels

•Microwave Leakage Detectors

•Motor Maintenance Equipment

•Multifunction Testers

•Non-trip Loop Testers

•Pat Testers & Accessories

•Phase Rotation Testers

•Proving Units

•Socket Testers

•Thermometers & Probes

•Test Leads

•Voltage Indicators

•Specialist Metrohm Testers (4 & 5kV)

•Specialist Drummond Testers

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