Keithley 2302 Instruction Manual page 309

The :INIT command should be sent only once at the beginning of the calibration procedure. Do
not send :INIT before each calibration step.
Example
:CAL:PROT:INIT
: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. :SAVE is
sent after all other calibration steps.
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).
3. An incomplete number of cal steps were performed.
4. Calibration was performed out of sequence.
Example
:CAL:PROT:SAVE
:STEP
(:CALibration:PROTected:STEP<n>)
Purpose
To perform various calibration steps.
Format
:cal:prot:step<n>
Parameters
See
Description
The :CAL:PROT:STEP<n> command performs calibration at the various
points listed in
connections.
Calibration steps must be performed in the order listed in
occur.
Example
:CAL:PROT:STEP0 14
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
Table C-1 on page C-3.
Table C-2. See Section 14 for details on test equipment and
Calibration Reference C-5
Initiate calibration.
Save calibration constants
C-2, or an error will
Table
Perform cal step 0 (Ch. 1 full-scale output).