MARTINDALE CM58 User Manual

CM58 CLAMP METER
INSTRUCTION
MANUAL
MARTINDALE
ELECTRIC
Trusted by professionals
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CONTENTS
1 Introduction 2
1.1 Description 2
1.2 Unpacking & Inspection 4
1.3 Replacing the Battery 4
2 Safety Information 5
3 Operation 5
3.1 Safety Precautions 5
3.2 Voltage Measurement 6
3.3 Current Measurement 6
3.4 Resistance Measurement 7
3.5 Continuity Testing 8
3.6 Diode Testing 8
3.7 Capacitance Measurement 9
3.8 Frequency Measurements 9
3.9 Other functions 10
4 Maintenance 12
4.1 Cleaning 12
4.2 Repair & Service 12
4.3 Storage Conditions 12
5 Warranty 12
Technical Specification 13
SAFETY INFORMATION: Always read before proceeding.
WARNING
This manual contains both information and warnings that are necessary for
the safe operation and maintenance of the clampmeter. 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.
The clampmeter must only be used under the conditions and for the
purposes for which it has been constructed. Particular attention should be
paid to these Warnings, the Precautions, the Technical Specifications and
the use of the CM58 in dry surroundings.
Always inspect your clampmeter, test leads and accessories for any sign of
damage before use. If any abnormal conditions exist (e.g: broken test leads,
cracked case, display not reading, etc.), do not attempt to use it. Do not
expose it to direct sunlight, excessive temperature or moisture.
Keep this instruction manual for future reference. Updated instructions and
product information are available at: www.martindale-electric.co.uk
SYMBOLS:
Equipment complies with relevant EU Directives
AC (Alternating Current)
Ground
Direct Current
Equipment protected by Double Insulation (Class II)
Caution - refer to accompanying documents
Caution - risk of electric shock
End of life disposal of this equipment should be
in accordance with relevant EU Directives
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1. INTRODUCTION
This manual contains information and warnings which must be followed to ensure
safe operation of the clampmeter.
1.1 Description
This clampmeter is a handheld 4000-count instrument that is designed for use in
the laboratory, field servicing and any circumstance where high current
measurement is required. The clampmeter incorporates a finger guard which
ensures the safety of the user whilst operating the instrument, a rugged case that
is shock resistant and fire retardant and electronic overload protection for all
functions and ranges. In addition, a protective carrying case is included for
protection of the meter whilst not in use.
WARNING
READ "SAFETY INFORMATION" BEFORE USING THE METER
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MARTINDALE CM58 Specifications

General

Jaw Opening	30mm
Safety Category	CAT III 600V
Safety Rating	EN 61010-1
Battery Type	2 x AAA
Continuity	Yes
Display	LCD

Summary

General Safety Warnings

Introduction

Device Description

Describes the handheld 4000-count instrument for high current measurements, featuring finger guard and overload protection.

Unpacking and Inspection

Replacing the Battery

Detailed Safety Information

Operation

Safety Precautions

Essential safety precautions for operating the meter, emphasizing reading instructions and warnings.

Voltage Measurements

Guidelines for safe voltage measurement, including warnings about voltage limits and connection procedures.

Current Measurements

Instructions for current measurement, highlighting clamp jaw voltage limits and test lead removal.

Resistance Measurements

Continuity Testing

Diode Testing

Capacitance Measurement

Frequency Measurements

Other Functions

Range Button

Explains manual vs. auto ranging selection using the RANGE button and its indicators.

Zero Button

Describes the relative mode function, which stores a reference value and zeros the display.

Min/Max Button

Details how to measure and record minimum and maximum values over a period.

Peak Button and Hold Button

Peak Button

Describes using the Peak button to measure AC current peak values and clear readings.

Hold Button

Explains how to freeze the displayed reading and clear the held value.

Other Functions - Auto Power Off

Maintenance

Cleaning

Instructions for cleaning the clamp meter using a soft dry cloth, avoiding abrasives or solvents.

Repair & Service

States that only qualified personnel should perform repairs and advises returning faulty units.

Storage Conditions

Recommendations for storing the clampmeter in warm, dry conditions away from heat or sunlight.

Warranty

Specifications

DC Volts Specifications

Details ranges, resolution, accuracy, and input impedance for DC voltage measurements.

AC Volts Specifications

Provides specifications for True RMS AC voltage measurements, including accuracy and overload protection.

AC Current Specifications

Lists specifications for True RMS AC current measurements, including ranges, accuracy, and overload limits.

Measurement Specifications

DC Current Specifications

Details accuracy and overload protection for DC current measurements across different ranges.

Capacitance Specifications

Outlines ranges, resolution, and accuracy for capacitance measurements.

Resistance Specifications

Provides specifications for resistance measurements, including ranges, accuracy, and open circuit volts.

Continuity Test Specifications

Details specifications for continuity testing, including audible threshold and response time.

Diode Test Specifications

Lists specifications for diode testing, including range, resolution, accuracy, and test current.

Frequency Specifications

Provides specifications for frequency measurements, including range, resolution, accuracy, and trigger level.