Kyoritsu Electrical Instruments Works KEW MEG 3161A, Instruction Manual

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CAUTION
◦ Always set the Range switch to the appropriate position before
making measurement.
◦ Set the Range switch to "OFF" position after use and remove the
test leads. The instrument consume small current at any range other
than OFF, and it shortens the battery life. Remove the batteries if the
instrument is to be stored and will not be in use for a long period.
◦ Do not expose the instrument to direct sunlight, high temperatures,
humidity or dew.
◦ Use a damp cloth with neutral detergent for cleaning the instrument.
Do not use abrasives or solvents.
◦ Do not store the instrument if it is wet. Store it after it dries.
Symbols
# User must refer to the explanation in the instruction manual.
 Instrument with double or reinforced insulation.
 Earth
This instrument satisfies the marking requirement defined in the
WEEE Directive (2002/96/EC). This symbol indicates separate
collection for electrical and electronic equipment.
Measurement categories(Over-voltage categories)
To ensure safe operation of measuring instruments, IEC 61010
establishes safety standards for various electrical environments,
categorized as o to CAT IV, and called measurement categories. Higher-
numbered categories correspond to electrical environments with greater
momentary energy. So a measuring instrument designed for CAT III
enviroments can endure greater momentary energy than one desined for
CAT II.
O(None, Other) Circuits which are not directly connected to the
mains power supply.
CAT II Primary electrical circuits of equipment connected to
an AC electrical outlet by a power cord.
CAT III Primary electrical circuits of the equipment
connected directly to the distribution panel, and
feeders from the distribution panel to outlets.
CAT IV The circuit from the service drop to the service
entrance, and to the power meter and primary
overcurrent protection device (distribution panel).