Keithley SourceMeter 2400, User Manual

Page: 185 / 594

6-42 Source-Measure Concepts 2400 Series SourceMeter
®
User’s Manual
Buffer considerations
When the SourceMeter is in the process of storing readings, configuration changes affect
what gets stored in the buffer. These storage considerations and restrictions are summa-
rized in
Table 6-3 .
The first column of Table 6-3 shows the SourceMeter configuration when the storage pro-
cess is started. The next three columns show what happens when configuration changes
are made while the SourceMeter is storing readings.
Changing V, I, or
Ω
measurement function
• If you started with only a basic measurement function selected, the buffer will track
a basic measurement function change. For example, if you started in volts and
changed to current, the buffer will store the current readings.
• If you started with MATH, REL, and/or LIMITS enabled, the buffer will stop stor-
ing readings if you change the basic measurement function. Storage will continue
if you return to the original configuration.
See Section 3 , “ Basic source-measure procedure ,” for more information on selecting the
measurement function.
Table 6-3
Buffer considerations
Configuration at start of
the storage process
What happens if the
basic measurement
function (V, I, or
Ω
)
is changed?
What happens if
the MATH function
is changed?
What happens if REL or
LIMITS is changed?
Measure V, I, or
Ω
MATH (FCTN) enabled
REL/LIMITS enabled
Buffer tracks
Buffer pauses
Buffer pauses
V, I, or
Ω
stored
MATH not stored
OK
Buffer pauses
V, I, or
Ω
stored
REL or Limits not stored
MATH stored
REL or Limits not stored
OK
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com