User`s guide

EX430-EU-EN v5.5 08/13

Introduction

Congratulations on your purchase of the Extech 430 (part number EX430) True RMS Autoranging

Multimeter. This meter measures AC/DC Voltage, AC/DC Current, Resistance, Capacitance,

Frequency, Duty Cycle, Diode Test, and Continuity plus Thermocouple Temperature. Proper use and

care of this meter will provide many years of 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

This WARNING symbol indicates a potentially hazardous situation, which if not

avoided, could result in death or serious injury.

This CAUTION symbol indicates a potentially hazardous situation, which if not

avoided, may result damage to the product.

This symbol advises the user that the terminal(s) so marked must not be

connected to a circuit point at which the voltage with respect to earth ground

exceeds (in this case) 600 VAC or VDC.

WARNING

CAUTION

MAX

600V