User manual

17
72-9355 / 72-9360 / 72-9365 / User Manual
Note : When operating the menu as shown in
Figure
2-4, if the menu selection
indicator is at “continuous”, you can press the return key [F5] to go back to the
previous type menu to reset that page.
2. Controlling bias voltage with the jog dial
(See the “Vertical System Setup” section for details)
3. Shifting trigger level with the jog dial
(See the “Trigger System Setup” section on P.16 for details)
4. Doing cursor measurement with the jog dial
(See the “Cursor Functions” section on P.29 for details)
5. Using the math function with the jog dial
(See the “Math Function” section on P.30 for details)
3. Vertical System Setup
Channel A, Channel B and shifting signals vertically
Each channel has its own menu. You should set up each item for each channel individually.
Press the [A] or [B] function key and the system will display the operation menu for
Channel A or Channel B. For explanatory notes based on Channel A, see Table 2-1 below :
Table 2-1 Explanatory notes for channel A menu
Input A On
Off
Channel A on
Channel A off
Coupling DC
AC
Ground
AC and DC quantities of input signal is allowed to pass.
This mode is for observing DC or exchange signals with
DC quantities.
DC quantities of the input signal are intercepted. This
mode is for observing exchange signals with DC
quantities intercepted.
DC level of the channel input terminal upon equivalent
grounding is displayed.
Bandwidth limit Full bandwidth
20MHz
The oscilloscope’s frequency bandwidth is full
bandwidth.
Limit bandwidth to 20MHz to reduce display noise.
Bias Voltage Bias voltage
(xxmV)
Reset to zero
Return
Adjust the channel bias voltage with the jog dial. When
the DC quantities of the signal being tested are much
larger than the amplitude of the AC signal, you can
offset the DC quantities with bias voltage. In this
condition, you can observe the amplified AC signal.
Reset the bias voltage to zero.
Go back to the Channel A menu
Probe ratio 1X
10X
100X
1000X
Select one of the values
b
ased on the
probe attenuation factor to keep the
reading of the signal being measured
correct.
Others
Polarity Normal
Invert
Normal waveform display Waveform is
invert