Hioki CM4141, Instruction Manual, Page: 15 / 76

9
Usage Notes
Test Lead
WARNING
To prevent an electric shock, when measuring the voltage of a power line use a
test lead that satisfies the following criteria:
• Conforms to safety standards IEC61010 or EN61010
• Measurement category III or IV
• Its rated voltage is higher than the voltage to be measured
The optional test leads provided for the instrument conform to the safety
standard EN61010. Use a test lead in accordance with its defined measurement
category and rated voltage.
• To prevent a short-circuit accident, be sure to use the test leads with the
sleeves attached when performing measurements in the CAT III and CAT IV
measurement categories.
• If the sleeves are removed during measurement, stop the measurement.
CAUTION
The cable is hardened in freezing temperatures. Do not bend or pull it to avoid tearing
its shield or cutting cable.