MM84
MULTIMETER
Instruction
Manual
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GENERAL SAFETY INFORMATION: Always read before proceeding.
Warning
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.
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.
This product must only be used by a competent person capable of interpreting the
results under the conditions and for the purposes for which it has been constructed.
Particular attention should be paid to the Warnings, Precautions and Technical
Specifi cations. Always check the unit is in good working order before use and that
there are no signs of damage to it. Do not use if damaged.
Where applicable other safety measures such as use of protective gloves, goggles
etc. should be employed.
Please keep these instructions for future reference. Updated instructions and
product information are available at: www.martindale-electric.co.uk
REMEMBER: SAFETY IS NO ACCIDENT
MEANING OF SYMBOLS:
Equipment complies with relevant EU Directives
End of life disposal of this equipment should be
in accordance with relevant EU Directives
Caution - risk of electric shock
Caution - risk of danger & refer to instructions
Equipment protected by double or reinforced insulation (Class II)
Direct current (DC)
Alternating current (AC)
Earth
(ground)
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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
11 Introduction
1
1.1 Inspection
1
1.2 Description
1
1.3
Accessories
1
2
Product Specifi c Safety Information
2
2.1
Precautions
2
3 Operation
4
3.1 General
4
3.2
Low Battery Indication
4
3.3 Description
of
Terminals
4
3.4
Description of Press Buttons
4
3.5
Description of LCD Symbols
5
3.6 Incorrect
Connection
Warning
5
3.7
Auto Power Off
5
3.8 Data
Hold
5
3.9
AC & DC Voltage Measurement
5
3.10
AC & DC Current Measurement
6
3.11 Resistance
Measurement
6
3.12 Frequency
Measurement
6
3.13
Duty Cycle Measurement
6
3.14 Continuity
Testing
7
3.15 Diode
Testing
7
3.16 Logic
Testing
7
4 Maintenance
8
4.1
Battery Replacement
8
4.2 Fuse
Replacement
8
4.3
Test Lead Replacement
9
4.4 Calibration
9
4.5 Cleaning
9
4.6
Repair & Service
9
4.7
Storage Conditions
10
5 Warranty
10
Specifi cations
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1
1. INTRODUCTION
1.1 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.
1.2 Description
The MM84 is a 4½ digit multimeter with the following functions:
True rms AC voltage to 750V
DC voltage to 1000V
True rms AC current to 20 A
DC current to 20A
Resistance to 20M
:
Frequency to 200kHz
Continuity with audible indication
Diode testing
Duty cycle
Logic test
Further functions are:
Data hold
Auto power off
Incorrect connection warning
1.3 Accessories (included)
TL16 test leads
Holster
9V battery (installed)
Instructions
1.4 Battery Installation
Refer to section 4.1 (Battery Replacement) for the battery
installation instructions for the MM84.
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