International Safety Symbols - Extech Instruments EX420A User Manual

Introduction
Congratulations on your purchase of the Extech EX420A 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. For copies of this user manual in other languages please visit the
www.extech.com website.
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
WARNING
CAUTION
MAX
600V
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.
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