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WARNING
To avoid an electric shock, observe the following
precautions:
• Prior to measurement, please make sure that the
earthing electrode has been disconnected from
the distribution system. The measurement cables
L9841, L9842-11, L9842-22, L9843-51, and L9843-52
are measurement cables with the maximum rated
voltage of 50 V (between input terminals and the
ground) and are designed to measure the earth
resistance of an earthing electrode disconnected
from the distribution system.
• Turn off the instrument before connecting cables
and test leads.
• Connect measurement cords or test leads to the
terminals securely. If a terminal is loose, the contact
resistance will increase, resulting in overheating,
equipment burnout, or a re.
WARNING
To prevent an electric shock, conrm that the white or
red portion (insulation layer) inside the cable of L9787
Test Lead and L9844 Measurement Cable are not
exposed. If a color inside the cable is exposed, do not
use the cable.
CAUTION
• If the batteries are exhausted, the warning tone will
not sound even if a voltage is applied due to a wrong
connection. Always check the batteries before starting
to use the instrument.
• To avoid damaging the cables and test leads, grasp the
connector, not the cable, to detach the cable.
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