Screen Abbreviations - Fluke 39 User Manual

Table 3. Screen Abbreviations
Screen Usage
d Phase Angle degrees. ( ± 180 ° )
°
Measures time from the positive zero crossing of the
fundamental of the selected volts or amp P REF. 360 °
represents one cycle at the fundamental or selected
harmonic frequency. A positive sign indicates that the
positive zero crossing of the measured cycle comes
earlier than (leads) that of the reference.
h
For the Watts screen, the phase angle always shows the
relation of Amps to the Volts
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.
Name and Description
Note
P
REF at the same frequency. Co s
Display Screen
φ
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