BEICH 9720BU, Operation Manual, Page: 21 / 35

CH9720 Operation Manual Chapter 3 Menu Operation
19
External USB storage
（
U disk
）
Setting, screenshot and data recording
 Note
：
on File list page, input serial No. directly
，
0-100 is RAM
，
above 100 is U disk
，
the storage
type is displayed on the right side of operation bar, input the file code and press save key to save.
U disk file structure
After U disk is connected with device, the device will organize and use the folder and file based
on the pre-confirmed structure.
Table
：
Type Extension name Max. File
*1
File routine
*2
Setting EST 500 \CH9720\SETUP
Data recording CSV 200 \CH9720\DATA
Screenshot GIF
，
BMP
，
PNG 200 \CH9720\IMAGE
Update 36U 10 Root Directory
Note*1. The Max. numbers that use the same extension name
；
note*2. The folder
is different as different models.
-------------------------------------------------------------------------------------------------------------------------
Note
：
The folder is created by tester automatically; the file name is same except the firmware file
-------------------------------------------------------------------------------------------------------------------------
USB storage should fit FAT16 or FAT32 system
，
and use FAT16 or FAT32 to format.
If tester can’t identify the U disk, please use another one.
-------------------------------------------------------------------------------------------------------------------------
Note
：
Beich is not responsible for the data loss caused by the USB device
-------------------------------------------------------------------------------------------------------------------------
Save file to U disk
After USB device is connected with USB(HOST)
，
then use
【
SAVE
】
to save the test result or
screen shot to U disk.
Save the test result to U disk
On any page, press
【
SAVE
】
key then
【
PICTURE
】 【
DATA
】
is displayed
，
press
【
DATA
】
to save the test result to U disk in the form of CSV
，
press
【
PICTURE
】
to save the screen shot
，
【
SAVE
】
key is blinding in process of saving
，
press
【
SAVE
】
key again to finish
，
in
【
PICTURE
】
【
SAVE
】
key is keeping blinding and off after saving
，
then you can open or use the file in PC.
Each CSV or TXT file, Max. 65536 lines of test data can be saved, once reach the Max. data, the
tester will stop recording automatically.
Warning
：
in process of writing data, the U dike is forbidden to be removed, otherwise
the U disk or file system will be damaged .
Note
：
Data file is numbered in the sequence of BEICH000~BEICH199
，
user can’t appoint and
revise the file name
；
in data writing, U disk will take some time, in such process, there
maybe a short-time response stopping.
Under the conditions below, the data recording is discontinued
：