Gulf Coast Data Concepts X16-5, Руководство пользователя

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2 Operation
2.1 USB Interface
The X16-5 connects to a PC using a standard Type-A USB connector and supports the USB mass
storage device interface for file access and file transfers. Nearly all computer operating systems
recognize the X16-5 as a typical USB external memory drive. Therefore, the X16-5 will allow file
transfers to the microSD card like a common USB flash drive. When connected to a PC, the X16-5
deactivates logging and operates only as a USB interface to the microSD card. Note that some tablet
operating systems block access to USB mass storage devices and will not recognize the X16-5.
2.2 Memory Card
The X16-5 stores data to a removable microSD flash memory card located beneath the white plastic
wrap. The included 8GB card is sufficient for most applications so the card does not need to be
removed or upgraded. However, the plastic wrap can be cut away to allow access to the card. The
logger uses FAT32 and is compatible with microSD and micoSDHC type cards.
The logger needs only the config.txt file to operate. The X16-5 will use default configuration settings
if the config.txt is not present. The “config.txt” and “time.txt” files must occur in the root directory
(see section 2.6 and section 2.4). The X16-5 will create a data folder to place the data files.
Gulf Coast Data Concepts Page 7 X16-5, Rev New
Interrupting the power to the logger can result in corruption of the microSD card. For
example, removing the logger from the USB port during file transfers to the PC or
removing the battery during logging activity. Reformat the card if it becomes corrupted
(FAT32 file structure). If data transfers to/from the card become slow, consider formatting
the card using “SD Card Formatter” software provided by the SD Association
(www.sdcard.org).
Figure 9: Sensor Orientation
+X
+Z
+Y
The standard 8GB memory card included with the X16-5 logger uses multi-level cell NAND
flash technology. MLC achieves higher memory density at the expense of power
consumption. Figure 9 illustrates the expected battery performance using the 8GB MLC
card. The battery performance can nearly double using a single-level cell type microSD
card, which is commonly found in cards <4GB.