JRC JFE-380 -, Инструкция по эксплуатации

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When removing the power cord, be sure to remove the
power cord terminal correctly.
If the power cord is pulled, the cord may be damaged
resulting in a fire or an electrical shock.
Do not install the units on the place being poor
ventilation.
Otherwise, the set that is heated may cause a fire or
failure.
For safety when the equipment is to be left unused for an
extended period, turn off the power switch.
When turning on the power, be sure not to press any operator panel key at the
same time. Alternates to the hardware configuration of the until could cause
the unit to malfunction.
Take care when laying the transducer cable, power cable, and earth lead as
positioning has an affect on electromagnetic interference. There is a risk of
interfering with other equipment or the echo-sounder being interfered with by
the other equipment.
After installing the echo-sounder, turn on the power to all other equipment to
check for interference with or from all the equipment. Interference may cause
malfunctions.
Usage Hints vi