CALibration Subsystem
Parameter
Typical Return
Return the calibration count:
CAL:COUN?
l
Because the value increments for each calibration point (each
), a complete calibration adds
many counts.
l
Can display count regardless of whether instrument is secured.
l
This setting is non-volatile; it will not be changed by power cycling or
CALibration:SECure:CODE <
new_code
>
Sets the security code to prevent unauthorized calibrations.
Parameter
Typical Return
Unquoted string up to 12 characters
Must start with letter (A-Z)
May contain letters, numbers (0-9) and underscores
(none)
Set new security code:
CAL:SEC:CODE MY_CODE_272
l
When shipped from the factory, the instrument is secured, with the security code set to
AT33520A
for the
33521A and 33522A, or
AT33500
for other 33500 Series instruments.
l
To change code: unsecure calibration memory with old code, then set new code.
l
If you forget the security code, see
Unsecure Instrument Without Security Code
.
l
This setting is non-volatile; it will not be changed by power cycling or
CALibration:SECure:STATe {ON|1|OFF|0} [,<
code
>]
CALibration:SECure:STATe?
Unsecures or secures the instrument for calibration. To calibrate, you must unsecure the instrument with the code
(
).
Parameter
Typical Return
{ON|1|OFF|0}, default ON
<
code
> is unquoted string up to 12 characters
0 (OFF) or 1 (ON)
Unsecure calibration:
CAL:SEC:STAT OFF,MY_CODE_272
Secure calibration:
CAL:SEC:STAT ON
l
<
code
> is optional to secure the instrument, but must be correct if provided.
l
Front panel and remote interface calibration use same code. If you secure the instrument from one interface, use
Agilent 33500 Series Operating and Service Guide
181
