Extech Instruments EX310 User Manual page 2

Introduction
Congratulations on your purchase of the Extech EX310 MultiMeter. The EX310
offers AC/DC Voltage, AC/DC Current, Resistance, Diode, and Continuity testing
plus a built-in non-contact Voltage Detector. 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
WARNING
situation, which if not avoided, could result in death or
serious injury.
This CAUTION symbol indicates a potentially hazardous
CAUTION
situation, which if not avoided, may result damage to the
product.
MAX This symbol advises the user that the terminal(s) so
marked must not be connected to a circuit point at which
600V
the voltage with respect to earth ground exceeds 600V.
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.
2 Model EX310-EU-ENG – V7.2– 05/2008