Elspec G3500 BlackBox, User And Installation Manual

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FIFO
PQZIP files are maintained on the BLACKBOX'S local Flash Memory based on the FIFO (First In First
Out) concept. As the BLACKBOX continuously records & measures all electrical information, &
therefore the file storage operation never stops. As such, when the on-board memory becomes full,
the oldest files are deleted automatically to free required space for the newest data. However, the
PQZIP compression
itself allows for the storage of a 1000 times more information than typical
formats & in addition the Portable BLACKBOX Device series is equipped with substantial memory
capacity (G4500 32GB; G3500 256MB). This dramatically increases storage capacity & the G4500 is
capable to record & store all electrical waveforms, all the time, for more than a year.
In addition by simply downloading the files from the Incoming Folder by using PQSCADA / FTP, data
can be stored outside the BLACKBOX's on-board memory as much as your Network Server's can
capacitate the files.
SEE ALSO:

Principle of Operation

Default Settings

PQZIP Recording

Enabling / Disabling PQZIP

Fixed Quality vs Fixed Ratio

File Capacity

FFT Mode

Capture DC

Erasing All PQZIP Data