MU300 Rev1.0 Oct20
Page 29 of 54
File system format: FAT16.
File type: Text file (.TXT).
Number of files: 512pcs at maximum.
The file saved each time should be 120 bytes. If the flowmeter saves data once per 5
sec, the file saved in 24 hours is 120*3600/5*24 = 2073600byte~2.1Mbyte;
therefore,1Gbyte SD card could save data for 1024/2.1= 487.6187 days. When SD card
has not enough storage, new data would automatically cover the earliest files.
Note:
On-line installation and mobile SD card
DO plug in/out SD card while the power of flowmeter is cut off. DO NOT plug in/out SD
card while processing data. You should process file sheets after the data is saved and
stored in your computer. If you directly process sheets in SD card files in your
computer, and SD card is deleted in processing, you may lose the data or the data may
be damaged.
If you want to plug in/out SD card while the power is on, you need to:
Turn the SD switch to "OFF", and then the memory indicator dies out, at this time you
could plug in/out the SD card at free will. Plug in SD card in the slot and turn the switch
to "ON", and then the memory indicator comes on, SD card could go on saving data.
6.1.12 Product Serial Number
Each flowmeter is provided with a unique product serial number. The serial number is
the unique mark for the manufacturer and users for tracing product information and
management. You could view your flowmeter’s serial number in M 50 menu.
Note:
Please refer to “Details about Menus” for operation of other menus.
