Keysight Technologies 3458A Guide D'utilisation page 300

6 Command Reference
Remarks
– The NDIG command sets the maximum number of digits displayed. It does not
– Query command: The NDIG? query command returns the currently specified
– Related commands: DISP
Example
10 OUTPUT 722; "RESET" !RETURN TO POWER-ON STATE
20 OUTPUT 722;"NDIG 8" !DISPLAY 8 1/2 DIGITS
30 END
NPLC
Number of power line cycles. Specifies the A/D converter's integration time in
terms of power line cycles. Integration time is the time during which the A/D
converter measures the input signal.
Syntax
NPLC [power_line_cycles]
power_line_cycles
The primary use of the NPLC command is to establish normal mode noise
rejection (NMR) at the A/D converter's reference frequency (LFREQ command).
Any value
at the power line frequency. Any value <1 provides no NMR; it only sets the
integration time for the A/D converter. The ranges and the incremental step sizes
for the power_line_cycles parameter are:
0 - 1 PLC in .000006 PLC steps for 60 Hz reference frequency (LFREQ
command)
or
0 - 1 PLC in .000005 PLC steps for 50 Hz reference frequency
300
affect the A/D converter's resolution or readings sent to memory or the GPIB
bus. The multimeter cannot display more digits than are resolved by the A/D
converter.
number of digits. Refer to
more information.
≥
1 for the power_line_cycles parameter provides at least 60 dB of NMR
Query commands near the front of this chapter for
Keysight 3458A User's Guide