18 Keysight InfiniiVision DSOX1204A/G Oscilloscopes User's Guide
1 Getting Started
Compensate 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 Input the Probe Comp signal (see "Input a Waveform" on page 15).
2 Press [Default Setup] to recall the default oscilloscope setup (see "Recall the
Default Oscilloscope Setup" on page 16).
3 Press [Auto Scale] to automatically configure the oscilloscope for the Probe
Comp signal (see "Use Autoscale" on page 17).
4 Press the channel key to which the probe is connected ([1], [2], etc.).
5 In the Channel Menu, press Probe.
6 In the Channel Probe Menu, press Probe Check; then, follow the instructions
on-screen.
If necessary, use a nonmetallic tool (supplied with the probe) to adjust the
trimmer capacitor on the probe for the flattest pulse possible.
On some probes (like the N2140/42A probes), the trimmer capacitor is located
on the probe BNC connector. On other probes (like the N2862/63/90 probes),
the trimmer capacitor is a yellow adjustment on the probe tip.
7 Connect probes to all other oscilloscope channels.
If your probe has a configurable attenuation setting (like the N2140/42A probes do), the 10:1
setting must be used for probe compensation.
Perfectly compensated
Over compensated
Under compensated
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