B-4 Command Reference
:LOCK
(:CALibration:PROTected:LOCK)
Purpose To lock out calibration.
Format :cal:prot:lock
Query :cal:prot:lock?
Response 0 Calibration unlocked
1 Calibration locked
Description The :LOCK command lets you lock out comprehensive calibration after
completing those procedures. Thus, :LOCK performs the opposite of send
-
ing the password with the :CODE command. The :LOCK? query returns
calibration lock status.
Note To unlock calibration, send the :CODE command with the appropriate pass-
word.
Example :CAL:PROT:LOCK Lock out calibration
:SAVE
(:CALibration:PROTected:SAVE)
Purpose To save calibration constants in EEROM after the calibration procedure.
Format :cal:prot:save
Description The :SAVE command stores internally calculated calibration constants
derived during comprehensive in EEROM. EEROM is non-volatile memory,
and calibration constants will be retained indefinitely once saved. Generally,
:SAVE is sent after all other calibration steps (except for :LOCK).
Note Calibration will be only temporary unless the :SAVE command is sent to
permanently store calibration constants. Calibration data will not be saved
if: (1) calibration was not unlocked by sending the :CODE command, (2)
invalid data exists (for example, cal step failed or was aborted), or (3) an
incomplete number of cal steps were performed (for example, omitting a
negative full-scale step).
Example :CAL:PROT:SAVE Save calibration constants
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