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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
This symbol adjacent to another symbol,
terminal or operating device indicates that the
operator must refer to an explanation in the
Operating Instructions to avoid personal injury
or damage to the meter.
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.
This symbol adjacent to one or more terminals
identifies them as being associated with
ranges that may, in normal use, be subjected
to particularly hazardous voltages. For
maximum safety, the meter and its test leads
should not be handled when these terminals
are energized.
This symbol indicates that a device is
protected throughout by double insulation or
reinforced insulation.
WARNING
CAUTION
MAX
600V