User's Manual

Fluke 125
Getting Started
12
Harmonics Measurements
Use a voltage probe on Input A and a current probe on
Input B.
Selecting the Harmonics mode
Open the application mode menu.
Highlight HARMONICS
Enter the harmonics mode.
If the Input A probe setting is not V (voltage), or the input
B probe setting is not (m)V/A (current), a probe menu
pops up to enable you to select the required probe.
Selecting the Probe Type
Open the PROBE on A or the PROBE
on B menu, then select the probe type.
Harmonics Screen Softkey Functions
The harmonics screen shows a softkey button bar like the
one shown below:
The harmonics screen F1…F4 key functions are:
Show the voltage (VOLT) harmonics, the
current (AMP) harmonics, or the power
(WATT) harmonics.
Select %f to display harmonics bars as a
percentage of fundamental voltage.
Select %r to display harmonics bars as a
percentage of the total of harmonic
voltages (V rms).
Show the bars screen.
Show the waveform screen.
Set cursors ON or OFF.
Cursors allow you to make precise digital
measurements on the bars screen.
Use the keys to move the cursor sign
<
|
>
on top of a harmonic bar. The display
shows the readings of the marked bar.