Bringing the Benefits of Real-Time Data Collection to the World
Sutron Corporation, Tel: 703-406-2800,
http://www.sutron.com
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If wrapping is set to ‘No’ and the file fills up, the system will not store the additional data in the
log and the new data will be lost. Note that Wrap can only be set when creating a new log.
"Ignore Bad Data", when checked, means don’t log any data unless it has good quality ("G").
Pressing the "Expt Opt" button will bring up the Export Log Options dialog. See below, for a
description of this dialog.
Creating New Logs
When creating a new log, it might take a minute or two after pressing OK for the file to be
initialized. During this time, nothing else can be done with the unit (an hourglass is displayed
during log file creation).
On SD cards with Gigabyte capacities, creating larger log files will take MUCH longer. To
create a 100 megabyte (104857600 bytes as entered) log file, the unit will take about 7 minutes,
to create a 1 Gigabyte log file, expect the unit to be busy for over an hour.
Use \Flash disk\
filename.
log to store log files into internal flash.
Use \USB Card\
filename
.log to store file onto a USB “thumb drive”.
Use \SD Card\
filename
.log to store file onto an SD storage card.
Sizing Logs
Since each logged data point takes between ten and fifteen bytes of memory, a log file 60,000
bytes in size will hold between 4000 and 6000 data points, or between 1.5 and 2 months of a
single sensor measurement, made every 15 minutes.
You can change the size of an existing log from the Log File Properties dialog. The size can be
increased without losing any data currently in the log. If the size is decreased, you will lose some
of the data in the log.
If you are decreasing the size of the log, you may want to retrieve the
data from the log so it is not lost.
Note: the minimum log size is 2048 bytes. The maximum log size is the lesser of 1) 2 billion
bytes, or 2) the free space available on the storage medium minus a small safety buffer (32k for
storage cards, 192k for Flash Disk).
Export Log Options
Pressing the “Expt Opt” button on the Log File Properties dialog brings up the following dialog,
used to define options related to exporting a log file.
Summary of Contents for Xpert2
Page 2: ......
Page 11: ...Chapter 1 Introduction...
Page 16: ......
Page 17: ...Chapter 2 Getting Started...
Page 86: ......
Page 87: ...Chapter 4 Graphical Setup Diagrams...
Page 104: ......
Page 105: ...CHAPTER 5 EXAMPLE SETUPS...
Page 128: ......
Page 129: ......
Page 130: ......
Page 131: ...Chapter 7 Installation...
Page 140: ......
Page 141: ...Chapter 8 Maintenance and Troubleshooting...
Page 145: ...Appendix A Setup Blocks...
Page 266: ......
Page 267: ...Appendix B Updating the Firmware...
Page 290: ......
Page 291: ...Appendix E Software Development Kit SDK...
Page 293: ...Appendix F Creating Custom Voice Files...
Page 330: ......