Frequency Compensation Adjustment
9
Frequency Compensation Adjustment
The N2771B High Voltage Probe has a Frequency Compensation
adjustment that compensates for the input capacitance of the
oscilloscope being used with the probe. Use a square-wave
generator set for approximately 100 Hz output. Proceed with the
following steps for frequency compensation.
1
Connect the probe to the oscilloscope.
2
Connect probe tip to square-wave generator.
3
Adjust the square wave generator for approximately 10 volts
amplitude.
4
Adjust the oscilloscope time base for 20
μ
s/div.
5
Use a trimmer tool to adjust the compensation capacitor for the
flattest pulse top. See the figure below for the location of the
adjustment.
Figure 1
Location of Frequency Compensation Adjustment
Cleaning
Clean only the exterior probe body and cables. Use a soft cotton
cloth lightly moistened with a mild solution of detergent and water.
Do not allow any portion of the probe to be submerged at any time.
WARNING
Dry the probe thoroughly before attempting to make voltage
measurements.
CAUTION
Do not subject the probe to solvents or solvent fumes as these can cause
deterioration of the probe body and cables.
