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
1.3 Safety Advice
3
2 Introduction
5
2.1 Inspection
5
2.2 Description
5
2.3 Accessories
5
2.4 Battery Installation
5
3 Operation
6
3.1 Description of VT25/VT28
6
Elements and LED Indicators
3.2 Auto-power On/Off
8
3.3 Torch
8
3.4 Low Battery Check
8
3.5 Removable Probe Tip Covers
8
3.6 Operating Duty Ratio
9
3.7 Proving Check
9
3.8 Testing for the Presence of
10
Hazardous Live Voltage
3.9 Interference (Phantom) Voltage
11
3.10 Single Pole Phase Test
11
3.11 Phase Rotation Test
11
3.12 Testing for Continuity
11
3.13 Digital Voltmeter LCD (VT28 only) 12
4 Maintenance
12
4.1 Battery Replacement
12
4.2 Calibration
14
4.3 Cleaning
14
4.4 Repair & Service
14
4.5 Storage Conditions
14
5 Warranty
15
Specifications
