Command Summary
26 Keysight 3458A Quick Reference Guide
26 Keysight 3458A Quick Reference Guide
Default polarity = NEG.
FIXEDZ [control]
Enables or disables the fixed input resistance 
function for DC voltage measurements.
control = OFF (0), ON (1)
Power-on control = OFF.
Default control = ON.
FREQ [max._input][%_resolution]
Frequency. Instructs the multimeter to measure 
the frequency of the input signal. You must 
specify whether the input signal is AC voltage, 
AC+DC voltage, AC current, or AC+DC current 
using the FSOURCE command.
Max._input: Selects a fixed range or the 
autorange mode. (See the RANGE command for 
details.)
Power-on max._input = not applicable.
Default max._input = AUTO.
% _ resolution: Specifies the digits of resolution 
and the gate time as shown below:
%_resolution
Parameter
Selects
Gate Time 
Digits of
Resolution
.00001 1 s 7
.0001 100 ms 7
.001 10 ms 6
.01 1 ms 5
.1 100 ms4