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SD Card Data Structure
1.
When the SD card if first inserted into the datalogger the folder CHA01 is created.
2.
The first datalogging session will then create a file CHA01001.XLS. All data will be saved to
this file until the number of rows reaches 30,000.
3.
After 30, 000 rows a new file, CHA01002.XLS is created. This is repeated every 30,000 rows
until CHA01099.XLS. At this point a new folder, CHA02 is created and the process is repeated.
CHA10 is the final folder.
Transferring Data to a PC
1.
Remove the memory card from the datalogger and plug it into the SD card slot on the PC.
2.
Launch Excel® and open the data file on the memory card from within the spreadsheet
program. The file will appear similar to the figure below.
www.
SD800-en-GB_v2.9 8/18
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Questions and answers
Is it possible to use the dtalogger without connecting the 9V inDC?
Yes, the Extech Instruments SD800 data logger can be used without the 9V DC power supply, but six AAA batteries must be installed. Without the batteries, the real-time clock will reset each time the AC adaptor is disconnected.
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