User`s guide

MA220-en-EU_V1.9 8/14

Introduction

Thank you for selecting the Extech MA220 AC/DC Clamp Meter. This meter measures AC/DC Current,

AC/DC Voltage, Resistance, Capacitance, Frequency, Duty Cycle, Temperature, Diode Test, and

Continuity. This professional meter, with proper care, will provide years of safe reliable service.

Safety

International Safety Symbols

This symbol, adjacent to another symbol or terminal, indicates the user must refer to the

manual for further information.

This symbol, adjacent to a terminal, indicates that, under normal use, hazardous

voltages may be present

Double insulation

SAFETY NOTES

 Do not exceed the maximum allowable input range of any function

 Do not apply voltage to meter when resistance function is selected.

 Set the function switch OFF when the meter is not in use.

 Remove the battery if meter is to be stored for longer than 60 days.

WARNINGS

 Set function switch to the appropriate position before measuring.

 When measuring volts do not switch to current/resistance modes.

 Do not measure current on a circuit whose voltage exceeds 240V.

 When changing ranges using the selector switch always disconnect the test leads from the

circuit under test.

 Do not exceed the maximum rated input limits.

OVERVOLTAGE CATEGORY III 600V

This meter meets the IEC 610-1-95 standard for OVERVOLTAGE CATEGORY III 600V. Cat III

600V meters are protected against overvoltage transients in fixed installation at the distribution

level. Examples include switches in the fixed installation and some equipment for industrial use with

permanent connection to the fixed installation.