Kenwood CS-5200 Series - Measuring V O L T a G E R a T I O W I T H C U R S O R

8-4 Measuring Voltage Rat io with Cursors [CS-5230, 5260, 5270]
Overshoot of a square wave, etc. may easily be measured with the cursors.
1) Apply the signal to the INPUT terminal. Use the VOLTS/DIV and SWEEP TIME/DIV controls
to display the waveform at an easy-to-see position.
2) Adjust the amplitude to 5 divisions with the V. VARI control.
3) Press the CURSOR MODE switch to select the voltage measurement mode. Align theAREF
cursor to the top of the square wave and the A cursor to the peak of the overshoot.
4) When the V. VARI contro 1 is set to UNCAL, ratio measurement is selected and
accordingly the displayed data represents the percentage of the overshoot.
Figure 13 Measuring Voltage Ratio with Cursors
8 — 5 Measur i ng Signals with Low Frequency Components
When the oscilloscope' s AC-GND-DC control is set to AC, there is a chance that errors
may occur in the voltage measurement. This inaccuracy is caused by low range cut-off
frequencies. At AC, the most accurate frequency measurements are realized above the 20 to
30 Hz range. Therefore, when measuring frequencies below this range, switch the AC-GND-DC
control to the DC setting. If you are using the probe supplied with the osci1 loscope,
accurate measurement of frequencies as low as 2 to 3 Hz can be realized at AC.
-Readout : Measurement
cursor
REF cursor
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