Tektronix Keithley 2281 Series Reference Manual page 47

Section 2: General operation
Measure Data Buffers menu for the power supply function
From this screen you can save, resize, and clear buffers. You also can set buffer fill mode and
statistics functions.
Setting
Size
Mode
Statistics
Statistics Function
Auto Clear
Statistics Format
Export To USB
Clear Buffer
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Model 2281S-20-6 DC Power Supply and Battery Simulator Reference Manual
Description
Set the maximum number of readings the buffer can store (2 to 2500). Note
that when you resize a buffer, the readings contained in that buffer are
cleared.
Select Always to have the buffer fill continuously, overwriting old data when
the buffer is filled.
Select Next to have the buffer stop collecting data when it is filled (no data is
overwritten).
Select Never to have the buffer stop collecting data.
Select statistics to apply to the readings in the buffer. Available statistics:

Minimum: Minimum value

Maximum: Maximum value

Peak-Peak: Maximum value - minimum value

Mean: Average

Std Dev: Standard deviation
Select whether to apply statistics calculations to current or voltage readings.
You can only specify one of them at a time.
Enable or disable autoclear for the buffer. When autoclear is enabled, the
buffer will automatically clear when the storage process starts.
Select the data elements to be shown on the graph and data sheet screen.
Available data elements:

Value: Voltage and current reading

Time: The timestamp for the data point

Number: Reading number
Save the buffer to a .csv file, which can be opened by a spreadsheet
program.
Clear all the data in the buffer.
077114601 / March 2019