Getting acquainted with the oscilloscope
Compensating a passive voltage probe
Probe compensation adjusts a passive (nonampli
fi
ed) voltage probe for the most accurate high-frequency response. The
oscilloscope has a 1 kHz square wave source for compensating the probe. Because a square wave contains a signi
fi
cant
number of harmonics (multiples of the fundamental frequency), it is an ideal signal source for adjusting the high frequency
response of a probe.
A rounded leading edge on the square wave means that the high frequency response of the probe is too low. A spike on the
leading edge means that the high frequency response is too high and must be reduced. A square leading edge means that
the frequency response is correct for the probe.
Whenever you attach a passive voltage probe for the
fi
rst time to any input channel, or change a passive probe from one
channel to another, you must compensate the probe to match it to that input channel.
To properly compensate your passive probe:
1.
Power on the oscilloscope.
2.
Connect the probe that shipped with the
instrument, or other passive probe, to an
oscilloscope channel.
3.
Connect the probe tip and ground lead
to the
PROBE COMP
connectors on the
oscilloscope. The probe tip connects to
the 5 V connector, and the ground clip
connects to the ground connector.
TBS2000 Series User Manual
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