Instructions
4.Advanced User Guidebook 
81 
memory device. 
USB memory device requirements: Insert a USB memory device into the USB port 
on the front panel. If the icon   appears on the top right of the screen, the USB 
memory device is installed successfully. If the USB memory device cannot be 
detected, format the USB memory device according to the methods in "USB disk 
Requirements" on P65. 
Caution: Updating your instrument firmware is a sensitive operation, to prevent 
damage to the instrument, do not power off the instrument or remove the USB 
memory device during the update process. 
To update your instrument firmware, do the following: 
1.  Push the Utility button, select Function in the bottom menu, select Configure in 
the left menu, select About in the bottom menu. View the model and the currently 
installed firmware version. 
2.  From a PC, visit  the website and check if the website offers a  newer firmware 
version.  Download  the firmware file. The file name must be *.update. The file 
name can be up to 15 characters long (including the suffix). Copy the firmware 
file onto your USB memory device. 
3.  Insert the USB memory device into the front-panel USB port on your instrument. 
4.  Push the Utility button, select Function in the bottom menu, select Update in the 
left menu. 
5.  Select Open in the bottom menu, the instrument lists a directory of the folders on 
the USB memory device. Turn the M knob to select a folder, select Open in the 
bottom menu to enter the folder. Navigate to the folder where the firmware file is, 
and select the file with the .update suffix. 
6.  In the bottom menu, select Open, the messages below will be shown. 
7. 
In the bottom menu, select Start again, the interfaces below will be displayed in 
sequence. The update process will take up to three minutes. After completion, the 
instrument will be shut down automatically.   










