N2891A Performance Verification Procedures - Keysight N2791A User Manual

N2891A Performance Verification Procedures

N2891A Performance Verification Procedures
The following procedure can be used to test and verify the DC differential gain
accuracy and bandwidth of the N2891A high voltage differential probe. Please
note that these procedures do not indicate that these characteristics are
warranted. Instead, these procedures are meant to give you an idea of how your
probe performs.
Description
Digitizing Oscilloscope
Signal Generator
Precision DC voltage
source
BNC Adapter
50 Ω BNC Feed Through
Adapter
DC Differential Gain Accuracy
WARNING:
metal parts after generator output is enabled.
WARNING:
N2891A probe. Because this adapter has exposed metal surfaces, only qualified personnel
should perform any testing with voltage levels exceeding 30 Vrms. All pertinent safety
rules and guidelines for elevated voltage measurements should be followed and adhered
to.
1 Set the volts/division on channel 1 of the oscilloscope to 20 mV/div. Set the
seconds/div to 200 μs and the acquisition mode to average 32.
24
Required Test Equipment
Critical Specifications
Bandwidth: >50 MHz
1 MΩ/50Ω selectable input
Amplitude accuracy: less than
or equal to 0.25%
1 MΩ/50Ω selectable load
Sine wave greater than or
equal to 25 MHz
BNC (f) to Dual Banana (m)
Adapter
50 Ω precision feed through Keysight 11048C
Generator produces hazardous voltages. To avoid shock, do not touch exposed
These procedures require the application of high voltage to the inputs of the
Recommended Model
Part Number
Keysight MSO9254A
Fluke 9500B
Keysight 1251-2277
Functions
Display probe output
Signal source for DC
gain and bandwidth
Interconnection
between probe and
generator
Termination
between probe and
calibrator for
bandwidth
verification