Appendix C: Calibration and adjustment
Model 2281S-20-6 DC Power Supply and Battery Simulator Reference Manual
C-28
077114601 / March 2019
Step 12
1. Before starting this calibration step, configure the shunt and load (electronic load or resistor load)
as shown in the following table.
Model
Shunt
Power supply
2281S
5.05 Ω
Constant current mode
5.0 V
1.0 A
2. Send the command to prepare for step 12:
:CALibration:PROTected:STEP7
3. Send the measured result from the digital multimeter (DMM) and shunt value by sending the
command:
:CALibration:PROTected:STEP7:DATA <voltage>, <resistance>
4. Send the following command to query the operation status:
*OPC?
After all of the operations are completed, the instrument returns
1
.
Saving calibration constants using SCPI commands
You can save the calibration constants to internal memory after each calibration procedure by
sending:
:CALibration:PROTected:SAVE
However, it works differently when sending this command after each step in a procedure. See the
following table.
Calibration step
What is saved to internal memory:
Step 1
Nothing is saved.
Step 2 through step 3
Only voltage calibration constants are saved.
Step 4 through step 7
The following calibration constants are saved:
Voltage calibration constants
Current calibration constants for the 10 mA and 100 mA ranges
Step 8 through step 9
Current calibration constants for the 1 A and 10 A ranges
Step 10 through step 11
Sink current calibration constants for 10 mA and 100 mA ranges
Step 12
All of the calibration constants
You can also cancel the calibration and eliminate the new constants by sending:
:CALibration:PROTected:CANCel
When you save the constants, you need to configure the calibration date. For details, see
(on page C-29).
