2 Probing the Device Under Test
56 InfiniiVision 7000B Series Oscilloscopes User’s Guide
Compensating Passive Probes
Each oscilloscope passive probe must be compensated to match the input
characteristics of the oscilloscope channel to which it is connected. A
poorly compensated probe can introduce significant measurement errors.
1 Perform the procedure “Input a Waveform and AutoScale” on page 32.
2 Use a nonmetallic tool (supplied with the probe) to adjust the trimmer
capacitor on the probe for the flattest pulse possible. The trimmer
capacitor is located on the probe BNC connector.
3 Connect probes to all other oscilloscope channels (channel 2 of a
2- channel oscilloscope, or channels 2, 3, and 4 of a 4- channel
oscilloscope). Repeat the procedure for each channel.
Do not negate the protective action of the ground connection to the oscilloscope. The
oscilloscope must remain grounded through its power cord. Defeating the ground
creates an electric shock hazard.
Perfectly compensated
Over compensated
Under compensated
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