ACBAND
158 Chapter 6 Command Reference
• The time required to perform each autocal routine is:
ALL : 11 minutes
DCV : 1 minute
AC : 1 minute
OHMS : 10 minutes
• Related Commands: CAL, SCAL, SECURE
Example OUTPUT 722;"ACAL ALL,3458" !RUNS ALL AUTOCALS USING
!FACTORY SECURITY CODE
ACBAND
AC bandwidth. Specifies the frequency content (bandwidth) of the input signal
for all AC or AC+DC measurements. Specifying the bandwidth allows the
multimeter to configure for the fastest possible measurements.
Syntax ACBAND [low_frequency][,high_frequency]
low_frequency Specifies the lowest expected frequency component of the input signal.
Power-on low_frequency = 20 Hz
Default low_frequency = 20 Hz
high_frequency Specifies the highest expected frequency component of the input signal.
Power-on high_frequency = 20 MHz
Default high_frequency = 2 MHz
Remarks • Refer to the specifications in Appendix A for accuracy and reading rate
specifications based on the bandwidth of the input signal.
• For synchronous ACV or ACDCV (SETACV SYNC command), the bandwidth
parameters are used by the multimeter to calculate time-out values and sampling
parameters. When using level triggering (default mode), if the input signal is
removed during a reading and does not return within the time limits, the
measurement method changes to random so that the reading can be completed.
(After the reading, the measurement method returns to SYNC.) For synchronous
ACV or ACDCV, it is very important that the specified bandwidth corresponds
to the frequency content of the signal being measured.
• For frequency or period measurements with autorange enabled, the bandwidth
parameters are used to determine the amount of time needed for autoranging.
For these measurements, it is very important that the specified bandwidth
(especially low_frequency) corresponds to the frequency content of the signal
being measured.
• If you are unsure of the frequency content of the input signal, default the
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