8-2 Data Store
Data store overview
The SourceMeter has a data store (buffer) to store from 1 to 2500 source-measure readings.
The instrument stores the source-measure readings that are displayed during the storage pro-
cess. Each source-measure reading also includes the buffer location number and a timestamp.
“Cmpl” will flash in buffer recall if the 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 For a sweep that has a finite sweep count, 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 left and right 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 operation.
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 mem-
ory 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 11.
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