User manual

OS-10V 02/04/2001 Rev.2

(3) Connect CH1 10:1 probe to input terminal, and connect with “CAL”.

(4) Follow Chapter 3 to operate relative components, get waveform on the screen as

figure 4.1

(5) Observe whether the waveform compensation is good, if not , you can adjust the LF

compensation components as shown in figure 4-2

Good Compensate Over Compensate Under Compensate

Fig 4-1

LF COMP

Fig 4-2

4.2 MEASUREMENT

4.2.1 P-P Voltage Measurements

Step :

(1) Input signal to INPUT [18] terminal.

(2) Setup VOLTS/DIV and observe waveform, let waveform display on the screen

within 5 divisions, and turn VAR clockwise to the calibration position.

(3) Adjust level to make waveform steady.

(4) Adjust sweep controls to show at least one cycle waveform on the screen.

(5) Adjust vertical position to make the bottom of waveform lies on a horizontal axis on

the screen. Fig 4-3A.

(6) Adjust horizontal position to make the top of waveform lies center of vertical axis.

Fig 4-3B.

(7) Read the divisions between A-B on vertical direction.

(8) Calculate the signal Vp-p using the formula below :

Vp-p= DIV of vertical direction× Sensitivity

For example, In Fig 4-3, vertical divisions of A-B is 4.1 DIV, sensitivity of the 10:1