User manual

57
UNI-T
®
UT4000 User Manual
Figure 3-6 Frequency of the cursor measurement signal
Illustration 6 : Using the X-Y function
To check the phase difference between two channels.
Example : To measure the phase variation when a signal passes through the circuit,
connect your oscilloscope to the circuit and monitor the input and output signals. To
check the circuit’s input and output in the X-Y coordinate mode, follow the steps below :
1. Set the attenuation factor of the probe to 10X. Set the switch of the probe to 10X.
2. Connect the CH1 probe to the input terminal of the network. Connect the CH2 probe
to the output terminal of the network.
3. If the channel is not displayed, press the [CH1] and [CH2] menu button to enable the
two channels.
4. Press [AUTO].
5. Adjust the vertical SCALE
knob to make the displayed amplitude of the two
channels to about equal.
6. Press the [DISPLAY] menu key to recall the display menu.
7. Press [F1] to select X-Y. The oscilloscope will display the circuit’s input and output
characteristics in a Lissajous figure.