User manual

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UNI-T
®
UT4000 User Manual
RUN/STOP : Acquire waveform continuously or stop acquisition.
If you want the oscilloscope to acquire waveform continuously, press [RUN/STOP] once.
Press the button again to stop acquisition. You can use this button to switch between
acquiring and stop acquiring waveform. In the Run mode, a green light comes on and
AUTO appears on the screen. In the STOP mode, a red light comes on and STOP appears
on the screen.
Menu Display ON/OFF: To display or hide the current menu
With the “menu ON/OFF” key, you can display or hide the menu currently on screen.
When the menu is hidden, a vertical yellow band will appear on the right side of the
screen
Logic Analyzer (LA) Measurement
There are 16 LA channels.
Maximum sampling rate : 250Msaps.
Storage depth : 512K.
Maximum input voltage : ±40Vpp.
Minimum voltage swing : 1.2 Vpp.
Trigger types available are : edge, pattern, duration.
The following is the LA operation menu.
Table 2-25
Function/Measurement Item Explanatory Note
LA function LA functions ON/OFF.
Channel setup See Table 2-26.
Threshold type Select threshold type : TTL, CMOS, ECL or any user
defined threshold type.
⎯
Sequence Sequence of channels currently open, from small to
large.