VT4 VO LTAG E
TESTER
Instruction
Manual
ALWAYS READ THESE INSTRUCTIONS
BEFORE PROCEEDING
Thank you for buying one of our products. For
safety and full understanding of its benefi ts
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
Specifi cations
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 Specifi cations.
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
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 specifi ed.
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
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 specifi ed
limits of the voltage tester may damage the voltage
tester and may expose the operator to a shock
hazard. Always check the voltage testers specifi ed
limits before use.
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2
Do not use if the battery compartment end cap
is not fi tted.
Always keep your fi ngers behind the fi nger
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.
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 fi lter 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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