Appendix C: Calibration and adjustment
Model 2281S-20-6 DC Power Supply and Battery Simulator Reference Manual
C-20
077114601 / March 2019
Remote calibration procedure
Before performing a calibration by remote control, check the system date of the 2281S. This can be
done by sending the following commands:
:SYSTem:DATE?
:SYSTem:TIME?
If the date is incorrect, the date and time need to be modified using the following commands:
:SYSTem:DATE <year>, <month>, <day>
:SYSTem:TIME <hour>, <minute>, <second>
Make sure to enter the correct date and time using the 24-hour clock. If the date is incorrect, it will not
save the proper date when calibration is saved using SCPI commands. For additional information
(on page 7-176).
To perform calibration from a remote interface:
1. Connect the 2281S to the computer using one of the following methods:
Use a shielded IEEE-488 cable, such as Keithley Instruments Model 7007
Use a standard LAN crossover cable to connect to the ethernet port
Use a USB cable to connect to the USB port
2. Turn on the 2281S and allow it to warm up for at least one hour before performing calibration.
3. Make sure the address of the 2281S is the same as the address specified in the program that you
will be using to send commands. For more information, refer to
(on page 2-68).
4. Unlock the calibration function by sending the following command:
:CALibration:PROTected:STATe ON, "password"
The default password for calibration is
KI002281
.
During remote calibration, the front-panel display may not show the actual calibration source and
measurements. Also, only the local soft key is supported, and additional key selections are ignored.
Calibration must be disabled before local keys are active.
Refer to
(on page 7-99) for additional details.
5. Send each calibration command with
*OPC?
appended to allow the program to know when the
operation is complete.
