Fluke 39, 41B Screen Abbreviations Screen Usage Name and Description, DP ase Angle degrees. ±

Display Screen

Table 3. Screen Abbreviations

Screen Usage Name and Description

°dP ase Angle degrees. (± 180°)

Measures time from the positive zero crossing of the fundamental of the selected volts or amp PREF. 360° represents one cycle at the fundamental or selected

armonic frequency. A positive sign indicates that the positive zero crossing of the measured cycle comes earlier than (leads) that of the reference.

Note

For the Watts hscreen, the phase angle always shows the relation of Amps to the Volts PREF at the same frequency. Cosφ calculations are based on this definition.

A RMS	Amps RMS (includes dc component if using dc capable
	current probe).
A PK	Peak Amps (1/2 peak-to-peak value).
A DC	Amps DC.
A HM	For a current waveform, A HM identifies the total
	harmonic current present.
A LEAD	Amps Lead Volts
	Evidence of capacitive reactance in the system; the
	current waveform precedes the voltage waveform.
A LAG	Amps Lag Volts
	Evidence of inductive reactance in the system; the
	current waveform occurs after the voltage waveform.
CF	Crest Factor
	Ratio of a waveform’s peak value to its rms value.

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