User Manual California Instruments
CSW Series 153
INTERHARMONICS GROUP
If the Harmonics group is selected, the screen will appear as shown in Figure 8-26. The screen
has the following parameters that are unique to the group:
Figure 8-26: IEC 61000-4-13 Inter harmonics
1. LEVEL Sets the percentage level of the inter harmonics relative to the fundamental.
The level is fixed for the entire frequency range defined by FRANGE. To
change levels, the test state must be off and user class must be selected.
2. FRANGE The range is selected by rotating the shuttle. The range selection is required to
change the level. An individual range step can be run by selecting the desired
range, followed by RUN RANGE from the RUN field.
3. STEP The step size defines the inter harmonics sweep points. This step size is fixed
for the entire range of the sweep. The STEP size can be changed when the
test state is off.
4. IHFREQ This field shows the current inter harmonic frequency when the test is running.
An inter harmonic frequency can be selected with the shuttle. To run an inter
harmonic frequency without sweeping through the entire range, RUN POINT
must be selected.
5. PAUSE Sets the time in seconds for which the test will pause between inter harmonic
frequencies. There is only one value for the entire test. The PAUSE can be set
when the test is not running.
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