Teledyne LeCroy PP018 - Manual (Page 8)

PP017/PP018 Passive Probe
6 920876-00 Rev A
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 (LF)
1. Apply a 1 kHz square wave to the probe or connect to the
oscilloscope’s calibrator output.
2. Adjust the left trimmer (LF) located on the PP017probe body:
or the trimmer located on the PP018 BNC Box:
until you achieve a flat-topped square wave per the center
illustration in the figure below.