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IM CW500-02EN
Measurement Category
Safety standard IEC61010 defines safety levels for locations where
measuring instrument are used. The definitions of the categories, O (other)
to IV, are provided below.
Measurement category Other (O):
Applies to measurement of circuits that are not directly connected
to a main power supply. This category applies to measurement of
secondary electric circuits in equipment across a transformer.
Measurement category II :
Applies to measurement of circuits, such as household electric
appliances and portable electric tools, that are connected to low-
voltage installations.
Measurement category III:
Applies to measurement of facility circuits, such as distribution boards
and circuit breakers.
Measurement category IV:
Applies to measurement of power source circuits, such as entrance
cables to buildings and cable systems, for low-voltage installations.
Failure to comply with the precautions below could
lead to injury or death or damage to the instrument.
WARNING
●
Use the Instrument Only for Its Intended Purpose
The CW500 is a power measurement instrument that can
measure parameters such as voltage, current, and power.
Do not use this instrument for anything other than as a power
measurement instrument.
●
Check the Physical Appearance
Do not use the instrument if there is a problem with its
physical appearance.
●
User’s manual
Before using this instrument, be sure to read the user’s
manual and fully understand how to operate it.