KYORITSU KEW 8146 Instruction Manual

INSTRUCTION MANUAL
KEW8146 KEW8147
LEAKAGE CLAMP SENSOR
LEAKAGE CLAMP SENSOR
KEW 8146/8147/8148
KYORITSU ELECTRICAL INSTRUMENTS WORKS, LTD.,
TOKYO, JAPAN
DISTRIBUTOR
1.800.561.8187
1. Safety warnings
This instrument has been designed, manufactured and
tested according to IEC 61010: Safety requirements for
Electronic Measuring apparatus, and delivered in the
best condition after passing quality control tests. This
instruction manual contains warnings and safety rules
which have to be observed by the user to ensure safe
operation of the instrument and to maintain it in safe
condition. Therefore, read through these operating
instructions before using the instrument.
● R ead through and understand instructions contained
in this manual before using the instrument.
● K eep the manual at hand to enable quick reference
whenever necessary.
● T he instrument is to be used only in its intended
applications.
The operating instructions described in the manual
must be observed.
● U nderstand and follow all the safety instructions
contained in the manual.
It is essential that the above instructions are adhered
KEW8148
to. Failure to follow the above instructions may cause
injury and or instrument damage.
The symbol
the user must refer to the related parts in the manual
for safe operation of the instrument. It is essential to
read the instructions wherever the
in the manual.
Series
DANGER is reserved for conditions and actions that
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are likely to cause serious or fatal injury.
WARNING is reserved for conditions and actions
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that can cause serious or fatal Injury.
CAUTION is reserved for conditions and actions that
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can cause minor injury or instrument damage.
5. Operating instructions
● N ever make measurement on a circuit in which the
electrical potential exceeds AC300V in order to avoid
possible shock hazard.
● T he transformer jaws are made of metal and their tips
are not completely insulated. Be especially careful
about the possible shorting where the measured
object has exposed metal parts.
.
● T ake sufficient care to avoid shock, vibration or
excessive force when handling the instrument.
Otherwise, precisely adjusted transformer jaws will be
damaged.
● W hen transformer jaws do not fully close, never try to
close them by force, but make them free to move and
try again. If a foreign substance is stuck in the jaw
tips, remove it.
● W hen making current measurements, keep the
transformer jaws fully closed.
Otherwise, accurate measurements cannot be taken.
● H old the inserting part (except for the cable) and
disconnect the Output connector from the measuring
instrument so as not to cause a break in the cord.
● W hen measuring current which pulse element is
superposed, differences of the indicated value may
be caused between ranges, if the peak value exceeds
the measurement range to a large extent. In this case,
the reading at the bigger range should be taken as a
right value. Sensitive transformer jaws are used for
Leakage clamp meter. Because of the characteristics
of transformer jaws, which can be opened and
closed, it is impossible to eliminate the interference
of external magnetic field completely. If there is a
presence of strong magnetic field, use the instrument
at a distance as far as possible from it. Following are
the typical things generating magnetic field.
・Conductor fed large current
・Motor
・Equipment which has magnet
・Integrating wattmeter
www.
WARNING
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indicated on the instrument, means that
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symbol appears
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DANGER
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CAUTION
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