5 Command Summary
84 Keysight 3458A Calibration Manual
Introduction
This section provides an alphabetical summary of commands that are used in
calibrating the 3458A (adjustments or performance verification). Detailed
command reference pages for each command are also included in this chapter.
ACAL
Autocal. Instructs the multimeter to perform one or all of its
automatic calibrations.
CAL
Calibration. Calibrates the internal 7 V reference to an external
10V standard (CAL 10) followed by an ACAL DCV. It also
calibrates the internal 40 kW reference to an external 10 kW
standard (CAL 10E3) followed by an ACAL OHMS. Offset for the
front and rear terminals are also calculated (CAL 0).
CAL?
Calibration query. Returns one of four values for the calibration
constant specified; the initial (nominal) value, low limit, high limit,
or actual value of the specified constant.
CALNUM?
Calibration number query. Returns a decimal number indicating
the number of times the multimeter has be adjusted.
CALSTR
Calibration string (remote only). Stores a string in the
multimeter's nonvolatile calibration RAM. Typical uses for this
string include the date or place of adjustment/verification,
technician's name, or the scheduled date for the next
adjustment.
REV?
Revision query. Returns two numbers separated by a comma.
The first number is the multimeter's outguard firmware revision.
The second number is the inguard firmware revision.
SCAL
Service calibration. Adjusts the AC section of the instrument.
Calculates the corrections to accurately measure frequency and
calibrates the ac ranges.
SECURE
Security code. Allows the person responsible for calibration to
enter a security code to prevent accidental or unauthorized
adjustment or autocalibration.
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