Press this button to start data logging. Press it again to stop data
logging. The sampling interval is displayed in LCD pointed by SEC
indicator.
In the mode of power measurement, press this button to display
the phasor diagram. In the mode of harmonic analysis, press
this button to display phase angle instead of magnitude.
Press this button to turn the back light on. Press it again to turn
the back light off.
Press this button to start measurement of power parameters.
Press this button to display waveform of voltage and current.
Press this button to display waveform of voltage only
In the mode of power parameter measurement, press this
button to select appropriate system (3P4W, 3P3W, 1P2W or
1P3W). In the mode of displaying waveform, press this button
to select (V1, I1), (V2, I2), or (V3, I3).
Press this button to turn the power on or off.
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