Keithley 6514

19-18 Calibration
Entering calibration dates and saving calibration
NOTE For temporary calibration without saving new calibration constants, proceed to Lock-
ing out calibration.
1. Press SHIFT then CAL to access the calibration menu.
2. Use either RANGE key to display the following:
CAL: DATES
3. Press ENTER. The unit will display:
DATE: 06/15/98
4. Use the arrow and RANGE keys to set the date, then press ENTER. The unit will then
prompt for the calibration due date:
NDUE: 06/15/99
5. Set the due date as desired, then press ENTER.
6. Select CAL: SAVE from the calibration menu, then press ENTER. The unit will prompt
as follows:
SAVE CAL?YES
7. With the YES prompt displayed, press ENTER to save and lock out calibration. The unit
will display:
CAL SAVED
NOTE Calibration will also be locked out once saved.
Locking out calibration
Use the following procedure to lock out calibration without saving new calibration constants:
1. Press SHIFT then CAL, then use the up RANGE key to display the following:
CAL: LOCK
2. Press ENTER. The instrument will display the following message:
CAL LOCKED.
Changing the calibration code
Follow the steps below to change the calibration code:
1. Press SHIFT then CAL. The instrument will display the following:
CAL: RUN
2. Use the up or down RANGE key to display the following:
CAL: UNLOCK
3. Press ENTER. The instrument will prompt for the present calibration code:
CODE?