SP3150A/SP3050A
6
Probe Compensation
Proper compensa
�
on of the probe is required to assure amplitude accuracy of
the waveform being measured by matching the probe to the oscilloscope’s
input capacitance. Compensa
�
on 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 trimmer located on the
SP3150A/SP3050A BNC Compensa�on
Box un
�
l you achieve a
fl
at-topped square wave like the center
illustra
�
on in the second
fi
gure below.
Over-compensated, correct, and under-compensated waveforms