Download MX Series User Manual - California Instruments
Transcript
User Manual - Rev AJ California Instruments SWEEP GROUP If the SWEEP group is selected, the screen will appear as shown in Figure 9-24. The screen has the following parameters that are unique to the group: Figure 9-24: IEC 1000-4-13 SWEEP 1. LEVEL Sets the percentage level of the interharmonics relative to the fundamental. The level is fixed for the entire frequency range, which is defined by FRANGE. To change level, 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 for the selected range. Also, an individual range sweep is possible by selecting the desired range and selecting RUN RANGE from the RUN field. 3. STEP The step size defines the interharmonics sweep points. Step size is fixed for the entire sweep range. The STEP size can be changed when the test state is off. 4. IHFREQ This field will show the current interharmonic frequency when the test is running. An interharmonic frequency can be selected using the shuttle. To run a frequency without sweeping through the entire range, a RUN POINT can be selected. 5. RESONANT This field is used to report the resonant points, if any, after running the sweep test. No editing is allowed in this field. When the test is completed, a display of harmonics current versus frequency plot is available. To view the graph, select the field and press the ENTER key. HARMONICS GROUP If the Harmonics group is selected, the screen will appear as shown in Figure 9-25. The screen has the following parameters that are unique to the group: Figure 9-25: IEC 1000-4-13 Harmonics 1. LEVEL Sets the percentage level of the harmonic relative to the fundamental. Each level is associated with a harmonic number. To change levels, the test state must be off and user class must be selected. 2. HARM NO Selecting a harmonic number using the shuttle knob will allow examination of the LEVEL and PHASE of each harmonic and changing the level and phase angle when USER class is selected. 3. PHASE MX Series Sets the phase angle of the harmonics relative to the fundamental. To change phase, the test state must be off and user class must be selected. 217