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8
When an electrical device is rst powered on, inrush current is the surge or momentary
burst of current that ows into it.
AC current measurement with “VFD” function (Variable
Frequency Drive Filtering)
The VFD mode eliminates high frequency noise in voltage measurements by means
of a low-pass filter� The VFD mode is designed for variable frequency drive (VFD)
measurements� This mode is always active for AC measurements�
Turn the knob and select proper range(60/600 or 1000 ), press the key until
the “VFD” symbol is displayed�
Note: Please do not use VFD function to verify the presence of dangerous voltage or
current, which may exceed the indicated value�
AC voltage measurement with “VFD” function
Turn the knob to or , press key until the “VFD” symbol is displayed�
Note: Please do not use VFD function to verify the presence of dangerous voltage or
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