Keysight Technologies 3458A Guide D'utilisation page 372

6 Command Reference
Remarks
– When using the TIMER event, the first reading occurs without the time interval.
– When using the TIMER event, autoranging is suspended (typically you should
– The SWEEP command can be used to replace the two commands:
– You cannot use the TIMER (or SWEEP) event for AC or AC+DC voltage
– Query command: The TIMER? query command returns the present time
– Related commands: DELAY, NRDGS, SWEEP
Example
10 OUTPUT 722;"TRIG HOLD" !SUSPENDS MEASUREMENTS
20 OUTPUT 722;"INBUF ON" !ENABLES THE INPUT BUFFER
30 OUTPUT 722;"DCV 10" !DC VOLTAGE, 10 V RANGE
40 OUTPUT 722;"NPLC .1" !SELECTS .1 PLC OF INTEGRATION TIME
50 OUTPUT 722;"AZERO OFF" !DISABLES AUTOZERO
60 OUTPUT 722;"MEM FIFO" !ENABLES READING MEMORY (FIFO MODE)
70 OUTPUT 722;"TIMER 2" !SELECTS 2 SECOND INTERVAL
80 OUTPUT 722;"NRDGS 10 TIMER" !10 READINGS PER SAMPLE EVENT (TIMER)
90 OUTPUT 722;"TRIG SGL" !TRIGGERS ONCE
100 END
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However, you can insert a time interval before the first reading using the
DELAY command.
select a fixed range when using the TIMER event). If autoranging was enabled
when you specified the TIMER sample event, autoranging will resume when
you specify another sample event.
NRDGSn,TIMER and TIMER n for any measurement function. The SWEEP and
NRDGS are interchangeable; the multimeter uses whichever command was
executed last in the programming. Executing the SWEEP command
automatically sets the sample event to TIMER. In the power-on, RESET, or
PRESET state, the multimeter uses the NRDGS command. The power-on
values for SWEEP can only be used for sub-sampling (since NRDGS does not
apply to sub-sampling).
measurements using the synchronous or random methods (SETACV SYNC or
RNDM) or for frequency or period measurements.
interval, in seconds, for the NRDGS timer event.
Keysight 3458A User's Guide