N2791A/N2891A High-Voltage Differential Probes - Keysight N2791A User Manual

N2791A/N2891A High-Voltage Differential Probes

N2791A/N2891A High-Voltage Differential Probes
The N2791A/N2891A high-voltage differential probes allow conventional earth-
grounded oscilloscopes to be used for floating signal measurements (up to 700
V of differential or common mode voltage for the N2791A and up to 7000 V of
differential or common mode voltage for the N2891A). The N2791A offers user-
selectable attenuation settings of 10:1 and 100:1 while the N2891A offers
attenuation settings of 100:1 and 1000:1, making both probes highly versatile
and usable for a broad range of applications including power supply
measurements and motor controls. Both probes are compatible with any
oscilloscope with a 1 MW BNC input. The probes can be powered by any USB
port on an oscilloscope or computer, or by internal batteries (4x AA included with
the probe).
The images below show some key parts of the N2891A probe body. The N2791A
has similar switches/LEDs, but they are arranged differently.
overrange
indicator
attenuation
switch
Battery Use
• Insert 4 AA batteries in the back of the unit as indicated within the chassis
(see pages 10-11 for information on accessing the battery location)
• When battery life has expired, remove the batteries
• When the batteries gets close to running out, the power indicator will start
to flicker and dim
• Note the WEEE label on the batteries and dispose of properly
4
on/off switch
power LED
indicator
USB power
cord input