SM 04L01A01-01E
3
WARNING
Power Supply
Ensure the source voltage matches the voltage of the power supply before
turning ON the power.
Protective Grounding
The protective earth terminal must be connected to ground to prevent an electric
shock before turning ON the power.
Necessity of Protective Grounding
Never cut off the internal or external protective earth wire or disconnect the
wiring of the protective earth terminal. Doing so poses a potential shock hazard.
Fuse
To prevent a fire, make sure to use a fuse with the specified standard (current,
voltage, type). Before replacing the fuse, turn off the power and disconnect the
power source. Do not use a different fuse or short-circuit the fuse holder.
See page 3-3 or 3-4 in chapter 3.
Defect in the Protective Earth Terminal and Fuse
Do not operate the instrument when the protective earth terminal or fuse might
be defective.
Do Not Operate New Flammable Meterials
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 components inside the instrument containing 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 grounding before connecting to the
measurement or control unit. Also, before touching the circuit, turn off the power
to the circuit and check that there is no voltage being generated.