Hioki PW3360-20, Instruction Manual, Page: 16 / 224

Operating Precautions
8
Handling the Instrument
Handling the Clamp Sensor
Handling the Cables
With regard to the electricity supply, there are risks of electric
shock, heat generation, fire, and arc discharge due to short
circuits. If persons unfamiliar with electricity measuring
instruments are to use the product, another person familiar
with such instruments must supervise operations.
• To avoid damage to the instrument, protect it from physical
shock when transporting and handling. Be especially careful to
avoid physical shock from dropping.
• This instrument may cause interference if used in residential
areas. Such use must be avoided unless the user takes special
measures to reduce electromagnetic emissions to prevent inter-
ference to the reception of radio and television broadcasts.
To avoid short circuits and potentially life-threatening haz-
ards, never attach the clamp to a circuit that operates at more
than maximum rated voltage to earth, or over bare conduc-
tors.
• Be careful to avoid dropping the clamps or otherwise subjecting
them to mechanical shock, which could damage the mating sur-
faces of the core and adversely affect measurement.
• Keep the clamp jaws and core slits free from foreign objects,
which could interfere with clamping action.
• Keep the clamp closed when not in use, to avoid accumulating
dust or dirt on the mating core surfaces, which could interfere
with clamp performance.
To prevent cable damage, do not step on cables or pinch them
between other objects. Do not bend or pull on cables at their base.