Extech Instruments MA430 User Manual page 2

400amp ac clamp meter + ncv

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Introduction

Congratulations on your purchase of this Extech MA430 Clamp Meter. This meter measures AC

Current, AC/DC Voltage, Resistance, Diode Test, Continuity and Non-Contact Voltage detection. The

double molded case is designed for heavy duty use. This device is shipped fully tested and calibrated

and, with proper use, will provide years of reliable service. Please visit our website to check for the

latest version of this User Guide, Product Updates, and Customer Support.

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

WARNING

avoided, could result in death or serious injury.

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

CAUTION

avoided, may result damage to the product.

PER IEC1010 OVERVOLTAGE INSTALLATION CATEGORY

OVERVOLTAGE CATEGORY I

Equipment of OVERVOLTAGE CATEGORY I is equipment for connection to circuits in which

measurements are taken to limit the transient overvoltages to an appropriate low level.

Note – Examples include protected electronic circuits.

OVERVOLTAGE CATEGORY II

Equipment of OVERVOLTAGE CATEGORY II is energy-consuming equipment to be supplied from

the fixed installation.

Note – Examples include household, office, and laboratory appliances.

OVERVOLTAGE CATEGORY III

Equipment of OVERVOLTAGE CATEGORY III is equipment in fixed installations.

Note – Examples include switches in the fixed installation and some equipment for industrial use with

permanent connection to the fixed installation.

OVERVOLTAGE CATEGORY IV

Equipment of OVERVOLTAGE CATEGORY IV is for use at the origin of the installation.

Note – Examples include electricity meters and primary over-current protection equipment

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MA430-EU-EN V1.1 3/13

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