What is Source Readback?

You can set the instrument to record and display the voltage or current of the configured source value or the actual source value.

When you use the configured source value, the instrument records and displays the value that was configured.

When you use the actual source value, the instrument measures the actual source value immediately before making the measurement of the device under test.

Using source readback results in more accurate measurements, at the cost of a reduction in measurement speed.

When source readback is on, the front-panel display shows the measured source value and the buffer records the measured source value immediately before the device under test measurement.

For example, if you have the source set to 60 V, you will see something like +059.998 V in the SOURCE VOLTAGE area of the Home screen.

When source readback is off, the front-panel display shows the configured source value and the buffer records the configured source value immediately before the measurement of the device under test.

For example, if the source is set to 60 V, you will see something like +060.000 V in the SOURCE VOLTAGE area of the Home screen.