8-9
IM 701730-01E
Waveform Display and Information Display
8
Explanation
Zoomed waveforms of two locations can be displayed simultaneously (dual zoom). You
can also specify which channels to zoom.
Zoom is possible until the number of displayed points is 50 or less (or 40 or less
depending on the time axis setting).
Selecting the Display Method for Zoomed Waveforms: Mode
Main:
Displays only the main (unzoomed) waveform.
Z1 Only:
Displays only the zoomed waveform of zoom box Z1.
Z2 Only:
Displays only the zoomed waveform of zoom box Z2.
Main&Z1:
Displays the main waveform in the top window and zoomed waveform of
zoom box Z1 in the bottom window.
Main&Z2:
Displays the main waveform in the top window and zoomed waveform of
zoom box Z2 in the bottom window.
Z1&Z2:
Displays the zoomed waveform of zoom box Z1 in the top window and
the zoomed waveform of zoom box Z2 in the bottom window.
Main&Z1&Z2:
Displays the main waveform in the top window, the zoomed waveform of
zoom box Z1 in the lower left window and the zoomed waveform of zoom
box Z2 in the lower right window.
Selecting the Waveform to Be Zoomed: Allocation
Waveforms whose Allocation had been turned ON (CH1 to CH4, Math1, Math2 (or CH1
and CH2, Math1 on the DL1720E) are zoomed. Waveforms whose Allocation had been
turned OFF are not zoomed. You cannot zoom waveforms whose display is turned OFF.
Display Format of Zoomed Waveforms: Format
Like the main waveform, six types (Main1, Single, Dual, Triad, Quad, Hexa2) of display
formats are available. You cannot set different formats for Z1 and Z2.
1. If you select Main, the format is the same as that of the Main Format setting under the
DISPLAY menu.
2. Quad and Hexa are available only on the DL1735E/DL1740E/DL1740EL.
Zoom Rate: Z1 Mag/Z2 Mag
• The upper limit of the zoom rate is determined from the display record length as
follows:
Upper limit of zoom rate: display record length
÷
50 (or 40)
The display record length does not necessarily match the record length.
For details on the display record length, see appendix 1.
• You can set different zoom rates for Z1 and Z2 (zoomed waveform of two locations).
Zoom Position: Z1Pos, Z2Pos
• The zoom position can be set by specifying the zoom center position (center of the
zoom box) in the range of –5 to +5 divisions with the center of the waveform display
frame set to 0 divisions. The setting steps are as follows:
Setting steps of the zoom position = T/div
×
10
÷
display record length
• The zoom box enclosed by solid lines is Z1 and the one enclosed by dashed lines is
Z2. Since each box is independent, you can set the position separately.
Changing Automated Measurement of Waveform Parameters: Fit Meas Rng to Z1/
Fit Meas Rng to Z2
Sets the measurement range of the automated measurement of waveform parameters to
the zoom range of Z1 or Z2. This setting is active even when the automated
measurement of waveform parameters is turned OFF.
8.4 Zooming the Waveform
