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4. Probe Compensation
When connecting the probe with any input channel for the first time, it is required to
make the adjustment, matching the probe with the input channel. Probe without being
compensated and calibrated will cause measurement error or mistake. To adjust probe
compensation, follow the steps below:
1. Set the probe menu attenuation coefficient as 10×, place the switch on the probe at
10× and connect the oscilloscope probe with CH1. Connect the probe end to the
signal output connector of the probe compensator, and connect the ground clamp
to the ground lead connector of probe compensator. Turn on CH1 and press AUTO.
2. Observe displayed waveform
Over‐compensation
If the screen displays "under‐compensation" or "over‐compensation" for waveform as
shown in above figures, use screwdriver with nonmetal handle to adjust the variable
capacitance on the probe until screen displays "correct compensation" for waveform as
shown in the below figure.
Figure 1‐7 Probe Compensation Signal
Correct compensation
Figure 1‐8a Probe Compensation and Correction
Model 72‐7610/72‐10510 User Manual
Under‐compensation
8
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