4
VI SCAN TAB
Perform a VI characterization scan of the QCL load. Input
scan settings, file name and location to store the scan data,
and start or stop the scan.
Current Start (A):
In the
Current Start
control, type the
current, in Amps, at which to start the VI scan. The scan
records current versus voltage data for the load. The range
is 0 Amps to the maximum output current allowed by the QCL
LAB instrument selected.
Current Stop (A):
In the
Current Stop
control, type the
current, in Amps, at which to stop the VI scan. The range is
0 Amps to the maximum output current allowed by the QCL
LAB instrument selected. The scan will not increase current
beyond the Current Limit set on the Settings & Monitors tab.
Step Size (A):
In the
Step Size
control, type the magnitude, in
Amps, for each step in the VI scan. The step size and duration
determines the length of the scan. The minimum step size
must be non-zero. A negative value will result in a scan with
decreasing current.
Step Duration (sec):
In the
Step Duration
control, type the
time delay, in seconds, between each step in the VI scan.
The step size and duration determines the length of the scan.
The range is 1 to 10 seconds. A duration of greater than 2
seconds is recommended for best stability.
VI Scan Data Graph:
Plot of output current versus load
voltage.
VI Scan File Path:
Type the file path to the location where the
scan data is to be stored. Click the folder icon to browse for a
location. A file name must be provided before a scan can be
run.
VI Scan File Header:
In the
VI Scan File Header
control,
type the heading that appears at the top of a new scan data
file. If you are appending data to an existing file, the header
name will not be changed in the file regardless of whether this
control field has changed.
VI Scan Start/Stop:
Click this button to start or stop a scan.
A file path must be specified before running a scan. When the
button is lit, the scan is running. The button turns gray when
the scan is complete. To stop a scan in progress, click the
button.
Figure 3. VI Scan Tab - Results with Resistive Test Load
