After the waveform is saved, you can use the REF key for callback. Press 
the REF key to enter the waveform callback menu.
Waveform Callback Menu
Descriptions
When Save key is pressed, waveform 
will be saved to the oscilloscope
When Save key is pressed, waveform 
will be saved to external USB device
Callback previously saved 
waveform and display on screen
Close current REF waveform
Options
RefA、RefB
DSO
USB
Functions
Type 
Disk
Callback
Clear
After callback, the Ref waveform will be displayed in the lower left corner, 
including timing scale and amplitude shift. At this point you can use the 
vertical and horizontal control knob to adjust the ref waveform’s position, 
time base, and amplitude shift.
10.3  Screen Copy 
The PrtSc key can be used to store the current screen in BMP format to 
an external USB storage device. The bitmap can be opened directly on 
the PC. This function can only be used when external USB storage devices 
are connected.
Chapter 11- Auxiliary Function Setting
Press the UTILITY key to enter the auxiliary function settings menu.
Auxiliary function setting menu (1)
Descriptions
Enter system configuration page
Enter interface configuration page
Enter pass test page 
Enter wave record page 
Enters Auxiliary function setting menu (2)
Functions
System configuration
Interface configuration
Pass test 
Wave record
1/3
Options
Auxiliary function settings menu (2)
Descriptions
Enter AUTO strategy page 
Enters Auxiliary function setting menu (3)
Functions
Measurement unit
AUTO strategy
2/3
Options
V/A
Note: The frequency meter is a counter for trigger events. The frequency 
meter is valid for edge or pulse width, but is not valid for the other trigger 
type .
Auxiliary function settings menu (3)
Descriptions
Enter recorder page 
Enter waveform generator page 
Set up frequency of reference 
waveform
Enter oscilloscope software 
update page 
1Hz/10Hz/100Hz/
1kHz/10kHz/100kHz
Functions
Recorder
waveform generator
Square wave output
System Upgrade
Options
UTD2000CEX-II User Manual