International Safety Symbols - Extech Instruments EX420-NIST User Manual

Introduction
Congratulations on your purchase of the Extech 420 (part number EX420) 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
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.
MAX
This symbol advises the user that the terminal(s) so marked must not be
600V
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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EX420-EU-EN v3.3 08/13