5 Command Summary
104 Keysight 3458A Calibration Manual
CALNUM?
Description
Calibration Number Query. Returns a decimal number indicating the number of
times the multimeter has been adjusted.
Syntax
CALNUM?
Remarks
– The calibration number is incremented by 1 whenever the multimeter is
unsecured and adjusted. If autocal is secured, the calibration number is also
incremented by 1 whenever an autocal is performed; if unsecured, autocal
does not affect the calibration number.
– The calibration number is stored in cal-protected memory and is not lost when
power is removed.
– The multimeter was adjusted before it left the factory which increments the
CALNUM. When you receive the multimeter, read the calibration number to
determine its initial value.
– Related commands: CAL. CALSTR. SCAL
Example
10 OUTPUT 722;"CALNUM?" !READS CALIBRATION NUMBER
20 ENTER 722;A !ENTERS RESPONSE INTO COMPUTER
30 PRINT A !PRINTS RESPONSE
40 END
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