7
V5.1‐March2010
GENERALSAFETYINFORMATION
Carefully read the following safety information in order to avoid personal injury and
damage to this product or to products connected to it. This product must only be
used in the specified manner to prevent danger and hazard to products and persons.
Warning:
To avoid fire or electrical shock please use the proper power adapter. Use only
the power adapter recommended by the manufacturer.
Warning:
To avoid fire or electrical shock do not connect meter to more than 42V peak
(30Vrms) or on circuits of more than 4800VA:
● Use only the insulated voltage probes, test leads and adapter supplied with
the test tool, or as indicated by Extech as suitable for the Oscilloscope &
Multimeter.
● Before use, inspect voltage probes, test leads and accessories for
mechanical damage. Replace the equipment when it appears damaged.
● Remove all probes, test leads and accessories when not in use.
● Always connect the power adapter first to the AC outlet before connecting
it to the Oscilloscope & Multimeter.
● Do not apply voltages that exceed 400 V from earth ground to any input
when measuring in a CAT II environment.
● Do not apply voltages that exceed 400 V to the isolated inputs when
measuring in a CAT II environment.
● Use caution when using 1:1 test leads since the probe tip voltage will be
directly transmitted to the Oscilloscope & Multimeter.
● Do not use exposed metal BNC or banana plug connectors.
● Do not insert metal objects into the connectors.
● Always use the Oscilloscope & Multimeter in the manner specified.
● Voltage ratings, mentioned in the warnings, are provided as “working
voltage” limits. They represent V ac rms (50-60Hz) for AC sine wave
