YSI Level Scout - Manual (Page 13)

3.1.4 ACQUIRE DATA CONTROLS
The fields contained within the Acquire frame (figure 3.5), are used to control live data acquisition with the transducers in the
current Run screen. These controls operate as follows:
„ The leftmost text box in the Acquire frame is an indicator of data acquisition status. The box shows the total
number of completed (and partial) live data scans acquired. The fractional part of this number is actually a sub-
scan digit representing acquisition of different measurement parameters for each scan. The background color of
the box is white when Acquire is off, green when Acquire is running, and yellow when Acquire is waiting during an
idle period between scans. This box is normally a display only field, but if clicked when acquisition is off, it clears
the accumulated scan count in the box.
„ Clicking the On button will start continuous data acquisition from the attached transducers at the update rate
shown in the Period (in seconds) box. The acquired data will be displayed in the Run window data table and/or
trend plot, depending on the selected display options. Note that if the value in the Period frame requests a rate
faster than is possible for the number of active transducers and the measurement options, Data Scout Advanced
will acquire at its fastest possible rate for that configuration. The default Period of ‘0' will result in Data Scout
Advanced acquiring data as fast as possible. To set a specific update period, click the green Period text box and
enter the desired sample rate in seconds.
„ Clicking the Off button will stop active data acquisition.
„ Clicking the 1 button when acquisition is off will result in only a single data set being acquired from each
transducer. The values from this single data set will be displayed in the Run window data table and/or trend plot,
depending on the selected display options.
Figure 3.5
3.1.5 RECORD FRAME CONTROLS
The controls contained within the Record frame (figure 3.6) are used to configure the recording of live data to the PC’s hard drive.
Data recording takes place only as live data acquisition occurs as described in the preceding section. If live data is not running, data
can not be recorded. Configuration for data recording can occur at any time whether data is being acquired or not. The controls are
as follows:
Figure 3.6
„ The frame in the left most position of the Record frame reflects the elapsed recording time in seconds. The box
background color is white if Record is off, yellow if Record is on but not currently recording any scans, and green if
Record is writing acquired scans to the hard drive. This timer is reset to 0.0 every time recording is turned on.
„ The On button starts data recording using the specified file name and file type. The data/time stamp added to the
base file name makes the recorded data file name unique.
„ The Off button disables data recording and closes the current data file.
„ The Name text box contains the base file name for storage of recorded data. This value can be changed by clicking
in the text box and typing the desired base file name. Note that the complete file name used by Data Scout
Advanced will be:
base_file_name_yyyy-mm-dd_hh-mm-ss.txt (or .csv)
YSI Incorporated Level Scout 11