2-26
IM 760201-01E
2.7 Waveform Display
The WT500 displays waveforms based on the data sampled within the data update rate.
Selecting the Waveform to Display (See section 3.7 for operating instructions)
You can select whether to show or hide the voltage and current waveforms of each
input element. This makes waveforms easier to see by allowing you to only show the
waveforms that you want to examine.
Vertical (Amplitude) Axis
The range of the vertical display is based on the specified measurement range. For
example, if the crest factor is set to 3 and the voltage measurement range is set to 100
Vrms, the display range is set so that the top of the screen is 300 Vpk (100 Vrms × 3)
and so that the bottom is –300 Vpk (–100 Vrms × 3), with the zero input line at the center.
If the crest factor is set to 6 and the voltage measurement range is set to 50 Vrms, the
display range is set so that the top of the screen is 300 Vpk (50 Vrms × 6) and so that the
bottom is –300 Vpk (–50 Vrms × 6), with the zero input line at the center. The waveform
is clipped if this range is exceeded.
1 grid division
= 300 V
1 grid division
= 100 V
When measured with a
measurement
range of 100 Vrms
When the same signal is
measured with a measurement
range of 300 Vrms
Input zero
line
300 Vpk
–300 Vpk
900 Vpk
–900 Vpk
Horizontal (Time) Axis (See section 7.4 for operating instructions)
Set the length of the horizontal axis by specifying the time per grid division. The time axis
can be set up to the point in which the time corresponding to one screen is equal to the
data update rate, in 1, 2, 5 steps. For example, if the data update rate is 500 ms, the time
per division can be changed in this order: 1 ms > 2 ms > 5 ms > 10 ms > 20 ms > 50 ms.
In this case, the time corresponding to one screen changes in this order: 10 ms > 20 ms
> 50 ms > 100 ms > 200 ms > 500 ms.
1 grid division = 10 ms
1 grid division = 20 ms
100 ms
(Observation time)
200 ms
(Observation time)
