IM 701830-01E
6
Make sure to comply with the following safety precautions. Not complying might
result in injury, death of personnel or damage to the instrument.
WARNING
Power Supply
Ensure the source voltage matches the voltage of the power supply before turning
ON the power.
Power Cord and Plug
To prevent an electric shock or fire, be sure to use the power cord supplied by
YOKOGAWA. The main power plug must be plugged in an outlet with protective
earth terminal. Do not invalidate protection by using an extension cord without
protective earth.
Protective Earth
The protective earth terminal must be connected to earth to prevent an electric shock
before turning ON the power.
Necessity of Protective Earth
Never cut off the internal or external protective earth wire or disconnect the wiring of
protective earth terminal. Doing so poses a potential shock hazard.
Defect of Protective Earth and Fuse
Do not operate the instrument when protective earth or fuse might be defective.
Do not Operate in an Explosive Atmosphere
Do not operate the instrument in the presence of flammable liquids or vapors.
Operation of any electrical instrument in such an environment constitutes a safety
hazard.
Do not Remove any Covers
There are some areas with high voltages. Do not remove any cover if the power
supply is connected. The cover should be removed by qualified personnel only.
External Connection
To ground securely, connect the protective earth before connecting to measurement
or control unit.
Also, when touching the circuit, turn off the power to the circuit and check that there
is no voltage being generated.
Safety Precautions