EFA-200/-300 6 Operating modes
6-29
6.4.5 Selecting the fundamental frequency
When measuring, only the selected fundamental frequency and its
harmonics are considered. The evaluation algorithm used can cope with
imprecise specifications of the frequency.
Six values are defined in the selection list. One of these values can be
entered as a variable fundamental frequency.
Entering a variable fundamental frequency: see page 6-29
All six predefined fundamental frequencies can also be varied in the
CONFG menu.
Editing the frequency selection list: see page 8-8
Tip: The defined fundamental frequencies can be saved as user setups.
Saving device settings (User Setup): see page 9-4
Choosing a fundamental frequency from the selection list
✓ The device should be in the “RUN” state.
1. Press the F4 key until the selection list for fundamental frequencies
appears.
2. Use the UP/DOWN keys to choose fundamental frequencies.
3. Press the ENTER key to confirm your selection.
In display field F4, the term “FUND” and the selected fundamental
frequency are displayed.
The display range of the frequency axis is automatically determined and
set.
Measurement begins.
Entering a variable fundamental frequency
One of the predefined frequencies can be entered as a variable
fundamental frequency in the range 5
Hz to 500 Hz with a resolution of
0.1 Hz.
✓ The device should be in the “RUN” state.
1. Press the F4 key until the selection list for fundamental frequencies
appears.
2. Use the UP/DOWN keys to choose the line VAR FREQ.
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