OWON TDS Series User Manual
Page 30
5.Advanced User Guidebook
25
below:
(1) Press the CH1 button to show channel menu.
(2) Select Coupling in the bottom menu.
(3) Select DC in the right menu. Both DC and AC components of the signal
are passed.
(4) Select AC in the right menu. The direct current component of the signal
is blocked.
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 P13). If the
attenuation coefficient of the probe is 1:1, the menu setting of the input
channel should be set to X1.
Take the Channel 1 as an example; the attenuation coefficient of the probe is
10:1, the operation steps are shown as follows:
(1) Press the CH1 button to show menu.
(2) Select Probe in the bottom menu. Select ×10 in the right menu.
A list of the probe attenuation coefficient and the corresponding menu settings:
Attenuation Coefficient of the Probe
Corresponding Menu Setting
1:1
X1
10:1
X10
100:1
X100
1000:1
X1000
3. To invert a waveform
Waveform inverted: the displayed signal is turned 180 degrees against the
phase of the earth potential.
Taking the Channel 1 for example, the operation steps are shown as follows:
(1) Press the CH1 button to show channel menu.
(2) Select ON for Inverted item. The waveform is inverted.
(3) Select OFF for Inverted item. The waveform goes back to its original
one.
4. To set bandwidth limit
When high frequency components of a waveform are not important to its
analysis, the bandwidth limit control can be used to reject frequencies above
20 MHz .
Taking the Channel 1 for example, the operation steps are shown as below: