Keithley 2280 Series, Reference Manual, Page: 429 / 457

Appendix C: Calibration and adjustment Series 2280 Precision DC Power Supply Reference Manual
C-22 077085503 / March 2019
Step 7
1. Before calibration, configure the shunt and load (electronic load or resistor load), as shown in the
following table.
Model Shunt Electronic load Resistor load
2280S-32-6
0.05 Ω
Constant current mode 32 V 6.0 A
5 Ω
2280S-60-3
0.05 Ω
Constant current mode 60 V 3 A
20 Ω
2. Send the command to prepare for step 7:
: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
.
Step 8
1. Before calibration, configure the shunt and load (electronic load or resistor load), as shown in the
following table.
Model Shunt Electronic load Resistor load
2280S-32-6
0.05 Ω
Constant voltage mode 30 V 6.5 A
5 Ω
2280S-60-3
0.05 Ω
Constant voltage mode 56.25 V 3.5 A
20 Ω
2. Send the command to prepare for step 8:
:CALibration:PROTected:STEP8
3. Send the following command to take internal measurements and calculations:
:CALibration:PROTected:STEP8:DATA
4. Send the following command to query the operation status:
*OPC?
After all of the operations are completed, the instrument returns
1
.