
5-15
IM 701210-05E
Horizontal and Vertical Axes
5
5.9 Zooming Vertically According to the Upper and Lower Limits of the Display Range
Explanation
Zooming Vertically According to the Upper and Lower Limits of the Display Range:
Variable
You can select whether to zoom vertically according to the upper and lower limits of the
display range.
• ON
You can zoom in on the desired section of the observed waveform by specifying the
upper and lower limits of the vertical axis according to the displayed waveform.
Conversely, you can widen the display range to view waveforms outside the display
range. The A/D conversion resolution and accuracy remain the same as those for the
original waveform, when the waveform is expanded/reduced with Variable turned ON.
Zoom
+10 V
–10 V
+6 V
+2 V
+4 V
• OFF
Does not zoom vertically using the upper and lower limit settings. In this case, the
vertical position (section 5.4), vertical zoom by setting the zoom rate (section 5.8), and
offset voltage (section 5.10) can be changed.
Selectable Range of Upper and Lower Limits
Up to the smaller of the two values
±
(100 times the specified V/div) or 2000 V. Make
sure the upper limit value (Upper) is greater than the lower limit value (Lower).
• Below are the ranges on the 701270 (STRAIN_NDIS) and 701271 (STRAIN_DSUB)
according to the range unit.
When the range unit is
µ
STR:
±
30000
µ
STR
When the range unit is mV/V:
±
15 mV/V
• Up to
±
2000000 unit on the 701275 (ACCL/VOLT).
• Up to (offset value)
±
(Value/div
×
30) on the 701280 (FREQ).
• When measuring the frequency:
–1500 Hz to 1700 Hz
• When measuring RPMs:
–300krpm to 350 krpm
• When measuring RPSs:
–5000 rps to 7000 rps
• When measuring the period:
–150 s to 200 s
• When measuring the duty cycle:
–500% to 700%
• When measuring the pulse width:
–150 s to 200 s
• When measuring the pulse integration: –2.5E+22 to 2.5E+22
• When measuring the velocity:
–2.5E+22 to 2.5E+22
• Up to
±
(100 times the specified Value/div) on the optional DSP channel.
Note
Changing V/div using the V/DIV knob after setting the upper and lower limits does not change
the V/div setting on the screen, but changes the measurable range. If you set the
measurable range smaller than the specified upper and lower limits and start the waveform
acquisition, the section of the waveform exceeding the measurable range may not be
displayed. The measurable range is approximately
±
10 divisions (around 0) when Variable is
OFF.