Klein Tools CL320 Manuel D'instructions page 10

ENGLISH
OPERATING INSTRUCTIONS
AC CURRENT (LESS THAN 400A)
AC Current is measured by pressing the clamp trigger to open
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the clamp and placing it around a current-carrying wire. When
measuring, care should be taken to ensure that the clamp is
completely closed with trigger fully released, and that the wire
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passes perpendicularly through the center of the clamp in line with
the arrow markings .
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To measure current:
1. Rotate the Function Selector switch 2 to the 40/400 A setting.
2. Place clamp around wire. The current measurement will be shown
in the display.
NOTE: If the measurement is less than 40A, rotate the Function
Selector switch to the 4A setting for improved resolution. If the
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measurement is less than 4A, the meter will auto-range to the 4A
range.
Disconnect test leads when measuring with the clamp.
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