5. Advanced User Guidebook
The description of the Channel Menu is shown as the following list:
Function Menu Setting Description
Coupling
DC
AC
GROUND
Pass both AC and DC components of the input signal.
Block the DC component of the input signal.
Disconnect the input signal.
Inverted
OFF
ON
Display original waveform.
Display inverted waveform.
Probe
X1
X10
X100
X1000
Match this to the probe attenuation factor to have an
accurate reading of vertical scale.
1. To set channel coupling
Taking the Channel 1 for example, the measured signal is a square wave signal
containing the direct current bias. The operation steps are shown as below:
(1) Press the CH1 MENU button and call out the CH1 SETUP menu.
(2) Press the H1 button, the Coupling menu will display at the screen.
(3) Press the F1 button to select the Coupling item as "DC". Both DC and AC
components of the signal are passed.
(4) Then, press F2 button to select the Coupling item as "AC". The direct current
component of the signal is blocked. The waveforms are shown as Fig.5-2.
Fig. 5-2 AC Coupling Oscillogram
2. To adjust the probe attenuation.
For correct measurements, the attenuation coefficient settings in the operating
menu of the Channel should always match what is on the probe (see "How to Set
the Probe Attenuation Coefficient" on P14). If the attenuation coefficient of the
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