Calibration Command Reference
3-4
3.3.3 :SWITch?
(:CALibration:PROTected:SWITch?)
Purpose
To read comprehensive calibration lock status.
Format
:cal:prot:swit?
Response
0
Comprehensive calibration locked
1
Comprehensive calibration unlocked.
Description
The :SWITch? query requests status from the Model 2002 on calibration locked/unlocked state.
Calibration must be unlocked by pressing in on the CAL switch while power is turned on before
calibration can be performed.
Programming Note
The :CAL:PROT:SWIT? query does not check the status of the low-level calibration lock, which
can be checked by using the :CAL:PROT:LLEV:SWIT? query. (See paragraph 3.3.9.)
Example
:CAL:PROT:SWIT? Request CAL switch status.
3.3.4 :SAVE
(:CALibration:PROTected:SAVE)
Purpose
To save calibration constants in EEROM after the calibration procedure.
Format
:cal:prot:save
Parameter
None
Description
The :SAVE command stores internally calculated calibration constants derived during both
comprehensive and low-level calibration in EEROM. EEROM is non-volatile memory, and cal-
ibration constants will be retained indefinitely once saved. Generally, :SAVE is sent after all
other calibration steps (except for :LOCK).
Programming Note
Calibration will be only temporary unless the :SAVE command is sent to permanently store cal-
ibration constants.
Example
:CAL:PROT:SAVE
Save calibration constants
3.3.5 :DATA?
(:CALibration:PROTected:DATA?)
Purpose
To download calibration constants from the Model 2002
Format
:cal:prot:data?
Response
<Cal_1>,<Cal_2>,...<Cal_n>
Description
:DATA? allows you to request the current calibration constants stored in EEROM from the
instrument. This command can be used to compare present constants with those from a previous
calibration procedure to verify that calibration was performed properly. The returned values are
floating-point numbers using ASCII representation delimited by commas (,).
Programming Note
See Appendix C for a summary of calibration constant values returned by the :DATA? query.
Example
:CAL:PROT:DATA? Request calibration constants.
Summary of Contents for 2002
Page 1: ...Model 2002Multimeter Calibration Manual A G R E A T E R M E A S U R E O F C O N F I D E N C E...
Page 9: ...iv...
Page 11: ...vi...
Page 55: ...Calibration 2 26...
Page 70: ...Specifications A 1 A Specifications...
Page 83: ...A 14 Specifications...
Page 101: ...Calibration Programs B 18...
Page 113: ......