9-2 Data Store 2400 Series SourceMeter
®
User’s Manual
Data store overview
The SourceMeter has a data store (buffer) to store from 1 to 2500 source-measure read-
ings. The instrument stores the source-measure readings that are displayed during the stor-
age process. Each source-measure reading also includes the buffer location number and a
timestamp. Cmpl will flash in buffer recall if reading is in compliance.
The data store also provides statistical data on the measured readings stored in the buffer.
These include minimum, maximum, mean, and standard deviation.
NOTE When a sweep is performed, the readings are automatically stored in the buffer.
Front panel data store
Storing readings
Perform the following steps to store readings:
1. Set up the SourceMeter for the desired configuration.
2. Press the STORE key.
3. Use the and cursor keys, and the SOURCE ( and ) or RANGE ( and )
keys to specify the number of readings to store in the buffer.
4. Press ENTER. The asterisk (*) annunciator turns on to indicate data storage opera-
tion. It will turn off when the storage is finished.
5. Turn on the output and (if necessary) trigger the unit to begin taking and storing
readings.
Recalling readings
Readings stored in the buffer are displayed by pressing the RECALL key. The source-
measure readings are positioned at the left side of the display, while the buffer location
number and timestamp are positioned at the right side.
Buffer location number
The buffer location number indicates the memory location of the source-measure reading.
Location #0000 indicates that the displayed source-measure reading is stored at the first
memory location. If limit testing was performed, a “P” or an “F” will precede the buffer
location number to indicate the pass/fail result of the test. Limit testing is covered in
Section 12.
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