Keithley 2280 Series Reference Manual

Series 2280 Precision DC Power Supply Reference Manual Section 4: Measurement optimization
077085503 / March 2019 4-15
Before you automatically acquire a reference for relative offset, make sure that the trigger model is
not in idle mode, set the arm and trigger source to immediate, and turn on the output. For more
information about the trigger model, see Trigger model (on page 3-25).
Using the front panel:
1. Select the measurement function. The relative offset will be applied to this function. For more
information, you can refer to Select a measurement function (on page 2-74).
2. Press the MENU key.
3. Under Measure, select Rel/Filter.
4. Select the button next to Rel Acquire and press Enter.
Using SCPI commands:
:SENSe:FUNCtion "VOLTage"
:SENSe:VOLTage:REFerence:ACQuire
:SENSe:VOLTage:REFerence:STATe ON
To acquire a relative offset value for another function, replace VOLTage with CURRent or
CONCurrent.
Displayed measurements
When you make measurements, the instrument may perform operations on the measured values that
affect what you see on the display and the measurements that are stored in the buffer.
The operations that can affect the measurement display are:
Filter operations
Relative offset
Math operations
If none of these operations are set, the value that is displayed on the front panel is the actual
measurement reading.
If any of these operations are set, the value that is displayed is the measurement reading with these
operations applied. For example, if you made a measurement and had a relative offset specified, the
measured value would have the relative offset applied. For details, refer to the following data flow
figure.

Keithley 2280 Series Specifications

General

Brand	Keithley
Model	2280 Series
Category	Power Supply
Language	English