AC Clamp-on Meter Model CM 660 / CM 670 / CM 685
3
CHAPTER 1
INTRODUCTION
Warning
These safety warnings are provided to ensure the safety of
personnel and proper operation of the instrument.
• Read the instruction manual completely and follow all safety
information before operating this instrument.
• Only use leads that comply with the IEC 61010. Before using
them, always check that they are in perfect working order.
• Never exceed the protection limit values indicated in the
specications for each type of measurement.
• When the multimeter clamp is linked to the measurement
circuits, do not touch any unused terminals.
• Before changing the function, disconnect the measurement
leads from the circuit measured.
• Never measure resistances on a live circuit.
1.1 International Electrical Symbols
This symbol signies that the instrument is protected by double or
reinforced insulation. Use only specied replacement parts when
servicing the instrument.
This symbol on the instrument indicates a WARNING and that
the operator must refer to the user manual for instructions before
operating the instrument. In this manual, the symbol preceding
instructions indicates that if the instructions are not followed, bodily
injury, installation/sample and product damage may result.
Risk of electric shock. The voltage at the parts marked with this
symbol may be dangerous.
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