Extech Instruments SD800 User Manual page 4

Co2/humidity/temperature datalogger
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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 columns reaches 30,000.
3.
After 30, 000 columns a new file, CHA01002.XLS is created. This is repeated every 30,000
columns 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.
4
SD800-EU-EN- V2.4 1/13

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