Step 4:
Press
Range
to select a range for the measurement. You can also use the
[+]
,
[-]
, and
[Range]
keys on the front panel to select the range. (
Auto
(autorange) automatically selects the range for the meas-
urement based on the input. Autoranging is convenient, but it results in slower measurements than using
a manual range. Autoranging goes up a range at 120% of the present range, and down a range below 10%
of the present range. Press
More
to switch between the two pages of settings.
Step 5:
Press
AC Filter
and choose the filter for the measurement. The instrument uses three different AC
filters that enable you either to optimize low frequency accuracy or to achieve faster AC settling times fol-
lowing a change in input signal amplitude.
The three filters are 3 Hz, 20 Hz, and 200 Hz, and you should generally select the highest frequency filter
whose frequency is less than that of the signal you are measuring, because higher frequency filters result
in faster measurements. For example, when measuring a signal between 20 and 200 Hz, use the 20 Hz fil-
ter.
If measurement speed is not an issue, choosing a lower frequency filter may result in quieter meas-
urements, depending on the signal that you are measuring.
For accurate displayed statistics of AC measurements in Front Panel mode, the default manual trigger delay
(
[Acquire] > Delay Man
) must be used.
Keysight True
volt
Series Operating and Service Guide
65
Features and Functions
