Features and Functions 4
Keysight 34970A/34972A User’s Guide 145
Current Measurement Configuration
To connect a current source to the module’s screw terminals, see page 39.
This section contains information to help you configure the instrument for making
current measurements on the 34901A multiplexer module. This module has two
fused channels for direct DC and AC current measurements on the measurement
ranges shown below.
AC low frequency filter
The instrument uses three different AC filters which enable you to either optimize
low frequency accuracy or achieve faster AC settling times. The instrument selects
the slow, medium, or fast filter based on the input frequency that you specify for
the selected channels.
Applies to AC current and AC voltage measurements only.
– The instrument selects the medium filter (20 Hz) when the function is changed
or after a Factory Reset (*RST command). An Instrument Preset
(SYSTem:PRESet command) or Card Reset (SYSTem:CPON command)
does not change the setting.
10 mA 100 mA 1 A Autorange
Current measurements are allowed only on channels 21 and 22 on the 34901A
module.
Input frequency Default settling delay Minimum settling delay
3 Hz to 300 kHz (Slow)
20Hz to 300 KHz (Medium)
200 Hz to 300 kHz (Fast)
7 seconds / reading
1 second / reading
0.12 seconds / reading
1.5 seconds
0.2 seconds
0.02 seconds
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