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pop-out the message “Save successfully”. 
2.9.1.2. Recall the oscilloscope setup file of internal memory 
If want to recall the setup after having finished the steps above, please do the following steps: Press the 
Recall softkey, and then turn the Multifunctional Knob to select the location that you want to recall, 
press the Recall softkey to recall the setup, and it will pop-out the message “Recall Successfully”. 
Note:  if  need  to delete a  setup  file  in  the  memory,  please  save  a  new  setup  to  the  same  location to 
overwrite it. 
2.9.2. External save and recall   
Before using external storage and recall, make sure that the USB storage device is connected correctly. 
External storage supports all the types of files in save, but in recall, CSV is not supported.   
2.9.2.1. Save the setup file to external USB storage device.   
1. Press the [Save/Recall] button on the front panel to enter the SAVE/RECALL function menu.   
2. Insert  the USB storage  device into  the front panel USB Host interface, if  the device  is  recognized 
successful, the pop-uptip “Storage device is connected”. 
3. Press the Save softkey to select Setup. 
4. Use the SaveTo softkey to external location. Press Save softkey and into USB storage interface. File 
can be stored under the root directory or in a certain folder under the root directory of the USB storage 
device. 
5. After the save position is selected, press the New softkey to turn on the editing interface. Refer to 
the descriptions in “2.9.4. File Manager” to create a new file name. 
6. Press the Save softkey to save the current waveform to the external USB storage device. 
2.9.2.2. Recall the suptup file of external USB storage device.   
1.  Insert  the  USB  storage  device  into  the  front  panel  USB  Host  interface,  if  thedevice  is  recognized 
successful, the pop-uptip “Storage device is connected”. 
2. Press the [Save/Recall] button on the front panel to enter the SAVE/RECALL function menu.   
3. Press the Type softkey to select Setup.   
4. Press the Recall softkey to enter the SAVE/RECALL file system.   
5. Turn the Multifunctional Knob to select the file to be recalled, press the Recall softkey to recall the 
waveform or setup.   
2.9.3. Save picture 
Ensure that the USB storage device is connected, and save the picture to external USB storage device. 
1. Press the [Save/Recall] button on the front panel to enter the SAVE/RECALL function menu.