NRG Systems SymphoniePRO, Руководство пользователя

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SymphoniePRO User Manual
Rev. 8 support@nrgsystems.com | Page 30
11 January 2018
The logger will appear in the site list. Double click on the list entry and the Logger screen will open
automatically. If the site file already exists and you’ve made a MetLink connection, you will be taken to the
Logger screen where you can view current settings.
3.1.1 Memory
The Logger screen’s Memory section allows monitoring and management of memory usage.
The SymphoniePRO logger can record data to an SD card in addition to recording data to its internal memory. If
no card is present, the Memory section of the Logger screen will indicate “Internal” instead of “SD Card”. The
logger will record data to its internal memory (7.8 MB capacity) until it is full; then it will overwrite the oldest
internally stored data first (circular buffer). The time it takes to fill the internal memory varies depending on the
number of installed sensors, the selected averaging interval, and whether or not raw data files are being
recorded.
Note - An SD card installed in the SymphoniePRO logger can provide redundant data backup. Industrial-rated 512
MB and 2GB SD cards are sold separately.
Note - When data files are transmitted by email or through a MetLink connection, they are sent from the logger’s
internal memory, not from the SD card.
The logger writes data to the SD card from the internal memory whenever a file closes; *.RLD files close every
day at midnight. A file will also close whenever a configuration change is made to the logger (changing a sensor
type or an averaging interval, for example). When an SD card is inserted, any files saved to the internal memory
that had previously not copied to the SD card will be copied.