Keysight Technologies 3458A Guide D'utilisation page 102

3 Configuring for Measurements
Table 3-8
Frequency or period
The multimeter's frequency and period counter accepts AC voltage or AC current
inputs. The maximum resolution is 7 digits
measurements. (Refer to
information).
You specify frequency measurements using the FREQ command or period
measurements using the PER command. For frequency or period measurements
you must also specify whether the input signal is from a voltage source or a
current source and whether the measurements will be AC or DC coupled. This is
done using the FSOURCE command (the power-on/default value is ACV).
Table 3-9
and the measurement capabilities of each. The terminal connections for frequency
or period measurements from a voltage source are shown in
terminal connections for frequency or period measurements from a current source
are shown in
The LEVEL command affects the zero crossing threshold and the input signal
NOTE
coupling for frequency and period measurements. Refer to the LEVEL command
in
[1] The leftmost digit, which is a ½ digit for most measurement functions is a full digit (0-9) for
102
AC and AC+DC current ranges and resolution
ACI range
100 µA
1 mA
10 mA
100 mA
1 A
shows the FSOURCE parameters, the type of input specified by each,
Figure 3-1.
Chapter 6 for more information.
frequency and period measurements.
Full scale read ing Maximum resolution
120.0000 µA
1.200000 mA
12.00000 mA
120.0000 mA
1.050000 A
[1]
Specifying resolution
lOO pA
1 nA
10 nA
100 nA
1 µA
for both frequency and period
later in this section, for more
Figure
Keysight 3458A User's Guide
Shunt resistor
730 W
100 W
10 W
1 W
0.1 W
3-1. The