Calibration Commands 
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Chapter6 Calibration  Commands 
CALibrate:SECure 
This command is used to enable or disable calibration mode. 
The calibration mode must be enabled before the load will accept any other 
calibration commands. The first parameter specifies the enabled or disabled 
state. The second parameter is the password. It is required if the calibration 
mode is being enabled and the existing password is not 0. If the password is 
not entered or is incorrect, an error is generated and the calibration mode 
remains disabled. The query statement returns only the state, not the password. 
Whenever the calibration state is changed from enabled to disabled, any new 
calibration constants are lost unless they have been stored with 
CALibrate:SAVE. 
Command syntax: 
CALibrate:SECure[:STATe] <bool> [,<SRD>] 
Parameter: 
0 | 1 | OFF | ON [,<password>] 
For example:CAL:SEC 0, N3301A    CAL:SEC ON 
Reset value: 
ON 
Query Syntax: 
CALibrate:SECure[:STATe]? 
Returned value: 
<NR1> 
Relevant Command: 
CAL:SAV CAL:INIT 
CALibrate:INITital 
This command can only be used in calibration mode. It restores factory 
calibration constants from nonvolatile memory. 
Command syntax: 
CALibrate:INITial