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Keysight N2791A/N2891A High-Voltage Differential Probes User Guide
Using the N2891A High-Voltage Differential Probe
Using the N2891A High-Voltage Differential Probe
1 To use this probe, first insert the four AA batteries into the probe or
connect the USB power cord to the probe and a USB port (see
to see where the USB power cord input is located on the probe).
2 Then connect the BNC output connector to the channel input of the
oscilloscope. The oscilloscope must have a ground referenced.
3 Select the proper attenuation ratio (100:1 or 1000:1) on the probe via
the attenuation switch (see the picture on
) and specify the
attenuation and probe configuration on your oscilloscope.
4 Using the appropriate probe accessories, connect the inputs to the
circuit under test.
Slide the battery cover off the rear of the probe body
NOTE
TIP: When measuring signals below 700 V, switch the attenuation ratio to
100:1 in order to obtain a higher resolution signal with less noise.
Otherwise set the attenuation ratio to 1000:1.
CAUTION
To protect against electrical shock, use only the accessories supplied
with this probe or in the accessory kit.
CAUTION
This probe is to carry out differential measurements between two points
on the circuit under test. This probe is not for electrically insulating the
circuit under test and the measuring instrument.
