Keithley 2280 Series Reference Manual

Appendix C: Calibration and adjustment Series 2280 Precision DC Power Supply Reference Manual
C-18 077085503 / March 2019
Step 2
1. Prepare for step 2 by sending the command:
:CALibration:PROTected:STEP2
2. Send the measured result from the digital multimeter (DMM) by sending the command:
:CALibration:PROTected:STEP2:DATA <voltage>
3. Send the following command to query the operation status:
*OPC?
After all of the operations are completed, the instrument returns 1.
After each calibration step, the Series 2280 output is set to a safe low-voltage level, preventing
inadvertent harm to the user, instrument, or load.
Remote low-current calibration
Connect the instrument with the digital multimeter (DMM), shunt, and electronic load (or resistor). For
details, see Current calibration connections (on page C-8).
You need to perform the following steps to finish the low-current calibration:
Steps 3 and 4: Current calibration on the 10 mA and 100 mA ranges
You must input the measured value from the DMM. The value should be within the expected range.
A message will indicate if the DMM data entry was out of the expected range. Verify that the proper
shunt value was used or that the cables are properly connected.
You can send SYST:ERR? to query any error messages and error event codes. For calibration error
messages and codes, refer to Error summary (on page 8-3).
For Model 2280S-32-6, the expected values are shown in the following table.
Steps
Maximum voltage
Minimum voltage
3
1.515e
-2
V
2.0e
-3
V
4
1.515 V
0.02 V
For Model 2280S-60-3, the expected values are shown in the following table.
Steps
Maximum voltage
Minimum voltage
3
1.515e
-2
V
2.0e
-3
V
4
1.515 V
0.02 V

Keithley 2280 Series Specifications

General

Brand	Keithley
Model	2280 Series
Category	Power Supply
Language	English