NF FRA5097, Instruction Manual

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FRA5097 III
●
Do not remove the housing (cover) from the instrument.
High voltages appear inside of the instrument. Do not remove the housing (cover)
from the instrument by any means.
No one except the service technicians certified by NF Electronic Instruments are
allowed to check or touch the inside of this instrument. Do not touch the inside by
yourself in any case.
●
Do not modify the instrument.
Never modify or try to modify the instrument. Your modification of the instrument
could cause unexpected accidents or failures. NF Electronic Instruments has the right
to refuse providing services for any instruments modified by unauthorized persons.
●
Marks and codes to indicate safety information and/or instructions:
General definitions for marks and codes to indicate safety information and/or
instructions in this Manual as well as at the instrument itself are the following:
！
Instructions Manual reference mark
This mark indicates that users should pay attention to potential failures, damages or
injury and that they are requested to refer to the appropriate section in the Reference
Manual.
Mark to indicate risks of electric shocks
This mark is used at locations where one can receive an electric shock under certain
conditions.
Protective grounding terminal mark
This mark is used at the terminals that are required to ground to protect users against
potential electric shocks.
Before operating the equipment, be sure to connect this terminal to ground through less
than 100
Ω
. (The instrument will be grounded by connecting its three-pole power
supply plug with a three-pole electric power source outlet with a proper grounding
connection. When this connection is made, no grounding is required for the indicated
terminal.)
！
WARNING
CAUTION
！
●
Other marks and codes
｜
This mark indicates the “ON” position of the power supply switch.
○
This mark indicates the “OFF” position of the power supply switch.
This mark indicates that the outer conductor of the connector is connected with the
instrument housing.
This mark indicates that the outer conductor of the connector is connected with the signal
ground
Warning mark
Instructions are given to avoid such potential hazardous situations that
instrument operators would be involved in a risk of facing death and/or
personal injury due to an electric shock or other reasons.
Caution mark
Instructions are given to avoid possible instrument damages due to
incorrect use/operation of the instrument.