176 Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes User's Guide
15 Measurements
1 From the Measurement menu, press the Settings softkey; then, press the
Thresholds softkey to set analog channel measurement thresholds.
You can also open the Meas Threshold menu by pressing
[Analyze] > Features and then selecting Measurement Thresholds.
2 Press the Source softkey to select the analog channel or math
waveform source for which you want to change measurement
thresholds.
Each analog channel and the math waveform can be
assigned unique threshold values.
3 Press the Type softkey to set the measurement threshold to %
(percentage of Top and Base value) or to Absolute (absolute
value).
• Percentage thresholds can be set from 5% to 95%.
• The units for absolute threshold for each channel is set in
the channel probe menu.
• When the Source is set to Math: f(t), the threshold Type can
only be set to Percent.
4 Press the Lower softkey; then, turn the Entry knob to set the lower measurement
threshold value.
Increasing the lower value beyond the set middle value will automatically
increase the middle value to be more than the lower value. The default lower
threshold is 10% (or 800 mV when absolute thresholds are selected).
If threshold Type is set to %, the lower threshold value can be set from 5% to
93%.
Absolute threshold hints
• Absolute thresholds are dependent on channel scaling, probe attenuation, and probe units. Always
set these values first before setting absolute thresholds.
• The minimum and maximum threshold values are limited to on-screen values.
• If any of the absolute threshold values are above or below the minimum or maximum waveform
values, the measurement may not be valid.
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