Keysight Technologies 3458A Guide D'utilisation page 246

6 Command Reference
CALSTR
Calibration string (remote only). Stores a string in the multimeter's nonvolatile
calibration RAM. Typical uses for this string include the multimeter's internal
temperature at the time of calibration
technician's name, and the scheduled date for the next calibration.
Syntax
CALSTR string[,security_code]
string
This is the alpha/numeric message that will be appended to the calibration RAM.
The string parameter must be enclosed in single or double quotes. The maximum
string length is 75 characters (the quotes enclosing the string are not counted as
characters).
security
When the calibration RAM is secured (SECURE command) you must include the
security_code in order to write a message to the calibration RAM. (You can always
read the string using the CALSTR? command regardless of the security mode).
Refer to the
calibration RAM.
Remarks
– Query command: The CALSTR? query command returns the character string
– Related commands: CAL, CALNUM?, SCAL, SECURE
Examples
CALSTR
OUTPUT 722;"CALSTR 'CALIBRATED 04/02/1987'"
CALSTR?
10 DIM A$[80] !DIMENSION STRING VARIABLE
20 OUTPUT 722; "CALSTR?" !READ THE STRING
30 ENTER 722;A$ !ENTER STRING
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code
SECURE command for information on securing and unsecuring the
from the multimeter's calibration RAM. This is shown in the second example
below.
(TEMP? command), date of calibration,
Keysight 3458A User's Guide