Performing Waveform Computation On Power Analysis Parameters - YOKOGAWA DL7440 User Manual

7 Performing Waveform Computation on Power
Analysis Parameters
Procedure
SETUP
MEASURE
MENU
PRINT
HISTORY
Setting the Equation, Scaling, Unit, and Smoothing
Operators of power
analysis parameters
18
X-Y
DISPLAY FILE MISC RESET
PHASE
CURSOR GO/NOGO MATH
MENU
IMAGE SAVE SHIFT
ACQ START/STOP
The following setup is required to perform waveform computation on power
analysis parameters.
• Turn ON the power analysis function on the applicable channels, and turn ON
the assignment of waveform analysis parameters to computed waveforms. For
the setup procedure, see section 3 in this manual.
• Turn ON the computed waveform display. For the setup procedure, see section
9.1 in the DL7440/DL7480 User's Manual IM701450-01E .
Note
• The setup procedures for computed waveform Math1 are described below. Perform similar
steps for Math2.
• For the procedure for turning ON/OFF the computed waveform display (Math1 Display or
Math2 Display) and the procedure for setting computed waveform labels (Math1 Label or
Math2 Label), see section 9.1 in the DL7440/DL7480 User's Manual .
• To make correct measurements and computation, it is recommended that the difference in the
transfer time of the analyzed signals be deskewed. For instructions, see section 4 in this manual.
1. Press MATH. The MATH menu appears.
You can also display the MATH menu by selecting To Math in the Power Analyze
Setup dialog box described in section 3 of this manual and pressing SELECT.
2. Press the Math Mode soft key to select Normal. The normal computation menu opens.
3. Press the Math1 Setup soft key. The Math1 Setup dialog box opens.
* For the setup procedure of Math1 Display, see section 9.1 in the DL7440/DL7480
User's Manual .
4. Use jog shuttle & SELECT to set the operator of the power analysis parameter
in the Operation box. Then, set the computation source waveform, scaling, unit,
smoothing, and other items according to the operator.
When the Math1 Setup dialog box is closed by pressing ESC or another key, the
specified equation appears in the Math1 Setup menu column.
For the setup procedure of the five operators of power analysis parameters, see the pages
indicated below. For a description of the Trend operator, see section 8 in this manual.
• Power (Instantaneous power) -> Page 19 • Z (impedance) -> Page 19
2
• I t (Joule integral) -> Page 20
• Harmonics -> Page 21
• To exit the menu during operation, press ESC located
SELECT above the soft keys.
• In the procedural explanation below, the term
jog shuttle & SELECT refers to the operation of
selecting/setting items and entering values using the jog
shuttle, SELECT and RESET keys. For details on the
operation using the jog shuttle, SELECT, and RESET, see
sections 4.1 or 4.2 in the DL7440/DL7480 User's Manual.
• For a description of the operation using a USB keyboard or
a USB mouse, see section 4.3 in the DL7440/DL7480
User's Manual.
• PS (power spectrum) -> Page 20
IM 701450-61E