2400 Series SourceMeter
®
User’s Manual Sweep Operation 10-15
• SWEEP COUNT — Use this menu item to specify how many sweeps to perform:
– FINITE — Use this option to enter a discrete number of sweeps to perform
with the results stored in the data store buffer. The maximum number of finite
sweeps that can be performed is determined as follows:
– maximum finite sweep count = 2500 / # Points in sweep
– INFINITE — Select this option to continuously repeat the configured sweep.
Use the EXIT key to stop the sweep. Data is not stored in the buffer.
• SOURCE RANGING — Use this menu item to control source ranging (ignored in
source memory):
– BEST FIXED — With this option, the SourceMeter will select a single fixed
source range that will accommodate all of the source levels in the sweep. For
example, if the minimum and maximum source levels in the sweep for the
Model 2400 are 1V and 30V, the 200V source range will be used.
–AUTO RANGE — With this option, the SourceMeter will select the most sen-
sitive source range for each source level in the sweep. For example, for a 1V
source level, the 2V source range will be used, and for a 3V source level, the
20V source range will be used. Note that the range changing process of AUTO
RANGE may cause transients in the sweep. If these transients cannot be toler-
ated, use the BEST FIXED source range.
– FIXED — With this option, the source remains on the range presently on when
the sweep is started. For sweep points that exceed the source range capability,
the source will output the maximum level for that range. For example, if the
source is on the 2V range when the sweep is started, it will remain on the 2V
range for the entire sweep. If the configured sweep points are 1V, 2V, 3V, 4V,
and 5V, the sweep will be 1V, 2V, 2.1V, 2.1V, and 2.1V.
Figure 10-7
Sweep configuration menu tree
CONFIG
SWEEP
TYPE
SWEEP
COUNT
SOURCE
RANGING
LOGSTAIR
SRC
MEMORY
CUSTOM INFINITEFINITE
BEST
FIXED
FIXED
AUTO
RANGE
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