Hioki BT4560 - Page 14

8
Operating Precautions
Before connecting the power cord
WARNING
• Before turning the instrument on, make sure the supply voltage matches that
indicated on its power connector. Connection to an improper supply voltage
may damage the instrument and present an electrical hazard.
• To avoid electrical accidents and to maintain the safety specications of this
instrument, connect the power cord provided only to a 3-contact (two-conductor
+ ground) outlet.
CAUTION
• To avoid damaging the power cord, grasp the plug, not the cord, when unplugging it
from the power outlet.
• 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.
IMPORTANT
• Turn off the power before disconnecting the power cord.
• Use only the specied power cord. Using a non-specied cord may result in incorrect
measurements due to poor connection or other reasons.
Before connecting measurement probe/temperature sensor
DANGER
• 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 to earth of the SOURCE-H terminal and the
SENSE-H terminal is ±5 V DC. The maximum rated voltage to earth of the
SOURCE-L terminal and the SENSE-L terminal is 0 V DC. Attempting to measure
voltages exceeding this level with respect to ground could damage the
instrument and result in personal injury. (Do not apply voltage to earth since the
SOURCE-L terminal and SENSE-L terminal where pseudo earthing is provided
in the internal circuit.)
• To avoid electrical shock, be careful to avoid shorting live lines with the
measurement probe.
WARNING
To avoid injury or damage to the instrument, do not attempt to measure AC
voltage, or DC voltage exceeding 5 V DC.