N7040A/1A/2A Rogowski AC Current Probes User Guide
31
Overview
3
7 Measure the current and observe the waveform on the oscilloscope. Remember that the actual
current will be greater or less than the oscilloscope waveform if the probe attenuation has not
been set accurately.
On an InfiniiVision Oscilloscope
The N7040A/41A/42A probe is not automatically identified by the oscilloscope and therefore you
need to manually set the attenuation factor and units for the probe.
1 Press the channel key to which the current probe is attached to display the Channel <N> menu.
2 Press the
Coupling
softkey to set the oscilloscope’s
Input Coupling
to
AC
to remove any DC offset
voltage from the waveform.
3 Press the
Impedance
softkey to set the input impedance of the oscilloscope channel to
1 M
Ω
to
make accurate measurements.
4 Press the
Probe
softkey to display the channel’s probe menu.
5 Press the
Units
softkey to select
Amps
as the measurement unit for the connected probe.
Содержание N7040A
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