YOKOGAWA DL716, User Manual

Page: 169 / 255

9-23
9
IM 701830-01E
Waveform Analysis
Setting the number of points for the FFT and the time window
If “ FFT ” is specified in the computing equation, set the following settings.
7. Press the “ Next ” soft key to display the “ Next 3/3 ” menu.
8. Press the “ FFT ” soft key to display the number of computing points/time window selection
menu.
9. Turn the jog shuttle to move the cursor to the “ Points ” item and press the
SELECT
key
several times to select the number of points.
10. Turn the jog shuttle to move the cursor to the “ Window ” item and press the
SELECT
key
to choose the window.
→
Setting constants K1 to K8
7.
Press the “ Constant ” soft key to display the constants setting menu.
8. Turn the jog shuttle to move the cursor to the constant you wish to set, then press the
SELECT key to display a menu for setting the value.
9. Set the value with the jog shuttle.
Use the arrow keys to move from one digit to the next.
Setting the averaging of the computed data/peak computation
7.
Press the “ Next ” soft key to display the “ Next 2/3 ” menu.
8. Press the “ Average Mode ” soft key and select “ Linear ,” “ Exp ,” “ Cycle ,” or “ Peak .”
If you selected “Peak,” the operating procedure ends here.
If “ Linear ” or “ Exp ” was selected
9. Press the “ Average Domain ” soft key and select “ Time ” or “ Freq .”
10. Turn the jog shuttle to set the “ Linear Count ” (average count) or the “ Exp Weight ”
(attenuation constant.)
If “ Cycle ” was selected
9. Turn the jog shuttle to set the “ Cycle Count ” (number of data points of one cycle.)
Setting of constants Setting of averaging
9.10 Executing User Defined Computation (Optional)