Tektronix TDS 644A Sprinkler User Manual


 
Example 3: Automated Measurements
Getting Started
1Ć20
Press here to
remove menus
from screen.
Figure 1Ć17:ăFour Simultaneous Measurement Readouts
The Measure menu lets you remove measurements you no longer want
displayed. You can remove any one measurement, or you can remove them
all with a single menu item.
Press MEASURE Remove Measrmnt (main) MeasurementĂ1, MeaĆ
surementĂ2, and MeasurementĂ4 (side) to remove those measurements.
Leave the rise time measurement displayed.
By default, the measurement system will use the 10% and 90% levels of the
waveform for taking the rise time measurement. You can change these
values to other percentages or change them to absolute voltage levels.
To examine the current values, press Reference Levels (main) High Ref
(side).
The General Purpose Knob
The general purpose knob, the large knob, is now set to adjust the high
reference level (Figure 1Ć18).
Removing
Measurement
Readouts
Changing the
Measurement
Reference Levels