Keithley 2010, Руководство по обслуживанию

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4. The Model 2010 lets you define a new calibration code. Use the up and down range keys
to toggle between yes and no. Choose N if you do not want to change the code. Choose
Y if you want to change the code. The unit then prompts you to enter a new code. Enter
the code, and press ENTER.
Remote command code
If you are performing calibration over the IEEE-488 bus or the RS-232 port, send the
following command to unlock calibration:
CAL:PROT:CODE '<8-character string>'.
The default code command is:
CAL:PROT:CODE 'KI002010'.
NOTE If the first two characters are anything other than “KI”, you will not be able to unlock
cal from the front panel.
Comprehensive calibration
The comprehensive calibration procedure calibrates the DCV, DCI, ACV, ACI, and ohms
functions. You can also choose to calibrate only the DCV/DCI and resistance, or the ACV/ACI
functions.
These procedures are usually the only ones required in the field. Manufacturing calibration is
done at the factory and can be done in the field if the unit has been repaired. See Manufacturing
calibration at the end of this section for more information.
Calibration cycle
Perform comprehensive calibration at least every other year, once a year, or every 90 days to
ensure the unit meets the corresponding specifications.
2-4 Calibration