Fluke 5502A, Operator'S Manual

Page: 123 / 378

Front-Panel Operation
Adjust the Phase
4
4-49
When one output is a harmonic of the other, the phase shift comes from the phase angle
or power factor (cosine) of the harmonic signal. For example, when the AUX output is a
60-Hz signal, and the NORMAL output is a 120 Hz (2nd Harmonic) signal, a phase shift
of 60
°
(PF of .5) moves the AUX signal 60
°
of 120 Hz (30
°
of 60 Hz).
Record a Phase Angle
If you have already sourced a dual ac voltage or ac power output, complete the
subsequent procedure to record a phase shift in degrees.
1.
Push the softkey WAVE MENUS to open the harmonic menu.
2. Push the softkey PHASE to open the phase entry menu.
3. Push the numeric keys and decimal point key to record the necessary phase angle
(maximum five numeric keys). For example, 123.45.
4. Push

to select leading (
+
) or lagging (
−
) phase shift (default is
+
).
5. The Control Display shows the value of your entry. For example, a leading phase
angle of 123.45 degrees (see below). (SHOW PF shows only for sine waves.)
nn111f.eps
6. Push

. The Calibrator erases your entry from the “New phase
=
” line and
copies it to the “Phase
=
” line of the Control Display.
7. Push

one or more times to return to previous menus.
Record a Power Factor
If you have already sourced a dual ac voltage or ac power output with sine waves as the
waveform, complete the subsequent procedure to record a phase shift as a power factor
(PF). PF
=
Cosine
Φ
, where
Φ
is the phase shift.
1. Push the softkey WAVE MENUS to open the waveform menu.
2. Push the softkey PHASE to open the phase entry menu.
3. Push the softkey SHOW PF to open the power factor entry menu.
4. Push the decimal point key and numeric keys to record the necessary power factor
(maximum three numeric keys). For example, .678.
5. Push the softkey PF to toggle between a leading (lead) or lagging (lag) power factor
(default is lead).
6. The Control Display shows the value of your entry. For example, a leading power
factor of .678 (see below).