Usage Notes
9
About the battery pack
Others
For battery operation, use only the HIOKI Model Z1003 Battery Pack. We do not
take any responsibility for accidents or damage related to the use of any other
batteries.
• The battery pack is subject to self-discharge. Be sure to charge the battery pack
before initial use. If the battery capacity remains very low after correct recharging, the
useful battery life is at an end.
• To avoid problems with battery operation, remove the batteries from the instrument if
it is to be stored several week or more.
Avoid using an uninterruptible power supply (UPS) or DC/AC inverter with rectangular
wave or pseudo-sine-wave output to power the instrument. Doing so may damage the
instrument.
Before Connecting to the Lines to be Measured
• To avoid short circuits and potentially life-threatening hazards, never attach the
clamp sensor to a circuit that operates at more than the maximum rated volt-
age to earth
(See your clamp sensor's instruction manual for its maximum ratings.)
• The maximum input voltage is 1000 VAC, ±600 VDC. Attempting to measure
voltage in excess of the maximum input could destroy the instrument and
result in personal injury or death.
• To avoid electrical hazards and damage to the instrument, do not apply voltage
exceeding the rated maximum to the input terminals.
• The maximum rated voltage between input terminals and ground is 600 VDC/
AC. Attempting to measure voltages exceeding 600 V with respect to ground
could damage the instrument and result in personal injury.
• Connect the clamp sensors or voltage cords to the instrument first, and then to
the active lines to be measured. Observe the following to avoid electric shock
and short circuits.
• Do not allow the voltage cord clips to touch two wires at the same time.
• Never touch the edge of the metal clips.
• When the clamp sensor is opened, do not allow the metal part of the clamp to
touch any exposed metal, or to short between two lines, and do not use over
bare conductors.
• When connecting a clip-type input cord, you will need to clip the line to the ter-
minal while it is hot. Bringing two wires into contact with each other while con-
necting the clips will cause a short-circuit.
• To prevent electrical shock and personnel injury, do not touch any input termi-
nals on the VT (PT), CT or the instrument when they are in operation.
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