Appendix F – Removable Media
To ensure that historical and performance information is always stored properly be sure to insert a Micro -
Secure Digital (SD) card in the proper slot. See section 6.6 for installation instructions.
The SD card stores all information in standard comma separated values (*.CSV) format for easy access with
any computer. Remove the SD card from the CL1/CL2 as described in section 6.6 and transfer the files to
your personal computer*. The files are best viewed with programs that convert CSV format to rows and
columns (Microsoft Excel, OpenOffice, etc) but can be viewed with any text editor.
Figure F.1 shows the folders found on the SD card depending on the configuration or your CL1/CL2 and the
use of the SD cards. All files have the format YYMMDD.CSV. A new file is automatically created each day –
be sure that the Date/Time are set correctly (Section 5.5.e)
Figure F.1
F.1 Concentration Log Files
(YYMMDD*.CSV)
Whenever the concentration detected exceeds the preset alarm level in the CL1/CL2, the system starts a log
file on the SD card (if available). The log file will update approximately every 2 seconds until the gas is no
longer detected. A sample alarm file is shown in figure F.2 The columns show: Date, Time, Gas
Concentration, Alarm Level 1, Alarm Level 2, and the selected gas range.
F.2 Event Log Files
(YYMMDD*.CSV)
Each time a new event, fault or alarm is added to the History log on the CL1/CL2, the message is written to
the current days event log file on the Micro SD card (if available). A sample event log is shown in figure F.3.
The columns show: Date, Time, Event Number, and Action (unused). The Event Numbers are listed in
Appendix D.
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