PP022 Passive Probe
6
Probe Compensation
Proper compensation of the probe is required to assure amplitude accuracy
of the waveform being measured by matching the probe to the
oscilloscope’s input capacitance. Compensation should be adjusted
whenever the probe is connected to or transferred between oscilloscopes.
Low Frequency
1.
Apply a 1 kHz square wave to the probe or connect to the
oscilloscope’s calibrator output.
2.
Adjust the single LF trimmer located on the PP022 BNC Box until you
achieve a flat-topped square wave (see figure below):
High Frequency
1.
Apply a 1 MHz square wave to the probe (< 0.7 ns rise-time).
2.
Remove the plastic caps from the two, high-frequency trimmers on
the PP022 BNC Compensation Box.
3.
Adjust HF2 then HF1 until you achieve a flat-topped square wave (see
figure below).
