Guralp Systems Scream - Manual (Page 18)

Scream! 4.5
Rec. : Whether Scream! is currently recording the data stream to the
computer's on-board hard disk (not the digitiser's memory). If another
device on your network is recording the data stream independently of
Scream!, the entry in this column will still be No. If this entry shows
ERR, then there has been an error whilst writing data for this stream.
Investigate the cause, then re-enable recording to clear the error.
Comp. : The compression factor of the data in the stream, expressed as
the number of bits occupied by each record (8, 16 or 32 bits). This can
vary block-by-block.
SPS : The sampling rate of the data stream, in samples per second.
Status streams, ending in 00, do not constantly output data and have
an SPS of 0. By default, the stream list is sorted in order of sample
rate, with the status streams at the bottom.
End time and Date : the date and time of the most recent data, as
measured by the data's own time-stamps. These are not necessarily
the latest data to arrive.
RIC : The ‘Reverse Integrating Constant’. In effect this is the value of
the last sample received. This is most useful for reading mass
positions or other environmental streams. Status streams have a RIC
of N/A.
If a stream is currently recording, on Windows the option “Explore
Recording Folder” will open a Windows Explorer window at the folder
where the data are currently recorded. This is useful to quickly
browse to the recorded files.
3.4.1 Sorting options
Sorting options are available from the View → Sort By menu:
•
Alphabetical : Strict alphabetical order, 0 – 9 then A(a) – Z(z).
•
Component : Vertical components (ending Zx), followed by Nx
and Ex components, then Mux channels Mx. Within a component
type, sort by the first four characters of the Stream ID.
•
Instrument : Sort by the first four characters of the Stream ID.
Within an instrument, sort by tap, then by component.
•
Sample Rate : Sort by sample rate, highest to lowest. Within a
sample rate, sort as Instrument.
18 Issue K