UNI-T UTD1000 Series, Operating Manual

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UTD1000 User Manual
3. Setting bias voltage
Bias voltage is suitable for observing the following
signals :
ķ
The input signal is made up of relatively high DC
quantities and relatively low AC quantities.
ĸ
The input AC signal is very low in frequency and
contains DC quantities. AC mode is unsuitable.
Ĺ
Duty ratio of the signal is too small. Waveform details
are hard to observe even in AC mode.
4. Setting the probe rate
To match the probe attenuation factor setup, it is
necessary to set up the probe attenuation factor in the
channel operation menu accordingly. For example,
when the probe attenuation factor is 10:1, set the
probe attenuation factor at 10X in the menu. Apply this
principle to other values to ensure the voltage reading is
correct.
The figure below shows the setup and vertical range
display when the probe is set at 10:1.
Press [A] to turn Channel A on, then press [F5]. Select
“Others” and select 10X probe ratio with the jog dial, as
shown below :
Set to 10X
Figure 2-11 Setting the probe ratio
Next press the jog dial once to confirm, then press the
jog dial again to close the menu.
After confirming, amplitude reading of Channel A is
displayed as follows :