3
IM 4H3B1-01E
Power Supply
Ensure the source voltage matches the voltage of the power supply before
turning on the power.
Protective Grounding
Make sure to connect the protective grounding to prevent an electric shock
before turning on the power.
Necessity of Protective Grounding
Never cut off the internal or external protective grounding wire or disconnect the
wiring of protective grounding terminal. Doing so poses a potential shock
hazard.
Defect of Protective Grounding and Fuse
Do not operate the instrument when protective grounding or fuse might be
defective.
Fuse
To prevent a fire, make sure to use the fuse with 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.
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.
Never Touch the Interior of the Instrument
Inside this instrument there are areas of high voltage; therefore, never touch the
interior if the power supply is connected. This instrument has an internal
changeable system; however, internal inspection and adjustments should be
done by qualified personnel only.
External Connection
To ground securely, connect the protective grounding before connecting to
measurement or control unit.
WARNING
