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IM 701931-01E
• This instrument is not waterproof or dustproof. Do not use the unit in a
wet or dusty environment.
• The sensor head is a precision assembly including a molded component,
a ferrite core, and a Hall effect element. It may be damaged if subjected
to sudden changes in ambient temperature, or mechanical strain or
shock, and therefore great care should be exercised in handling it.
• The matching surfaces of the sensor head are precision ground,
and should be treated with care. If these surfaces are scratched,
performance may be impaired.
• If there is any type of dust or dirt on the matching surfaces of the sensor
head, measurements may be affected. Wipe it away gently with a soft
cloth.
• In order to avoid damaging the sensor cables do not bend or pull the
sensor cable or power supply cable.
• Current sensors can be damaged by static electricity. Be careful not to
apply static electricity to current sensors. Below are some ways you
could apply static electricity.
• Touching the sensor head with an object charged with static electricity
• Touching the sensor head with an object whose electric potential is
different
• A user charged with static electricity touching the core surface when
cleaning the matching surfaces of the sensor head
(When cleaning the surfaces, take static electricity measures such as
wearing an antistatic wrist strap.)
• Gently wipe dirt from the surface of the unit with a soft cloth moistened
with a small amount of water or mild detergent. Do not try to clean
the unit using cleaners containing organic solvents such as benzene,
alcohol, acetone, ether, ketones, thinners, or gasoline. They may cause
discoloration or damage.
• When the power is ON, keep the core section of the sensor closed,
except when clamping it onto the conductor to be measured. The facing
surface of the core section can be scratched while it is open.
Note
• Accurate measurement may be impossible in locations subject to strong external
magnetic fields, such as near transformers and high-current conductors, or in
locations subject to strong external electric fields, such as near radio transmission
equipment.
• Depending on the current frequency that is measured, oscillation may occur, but
this has no effect on measurements.
