Vertical Setups Probe Setup Control Window: Probe Compensation
Behavior
When you perform a probe compensation on the selected channel, you optimize the instrument to
make accurate measurements for that channel and probe. The probe compensation makes significant
performance improvements when performed with active probes or older passive probes.
You can perform a probe compensation at any time to ensure measurements are taken w ith the highest
possible accuracy. Perform a probe compensation if you have changed probes since the last time a probe
compensati
on was performed.
TIP. If you are compensating a passive probe, you must first compensate the low-frequency response of the
probe. Refer to the Probe Compensation Procedure for more information.
Some types of probes can be gain compensated, some can be offset compensated, and some can be
compensated for both. If the probe has a TekProbe/TekVPI interface
(see page 491), the instrument
can determine the type of compensation needed and will display the appropriate instructions when you
perform the probe compensation procedure. Some probes cannot be compensated; for information on these
probes, refer to probe compensation restrictions.
Some probes cannot be compensated. This might be because the probes have an attenuation factor greater
than 20X. You will get an error message if you try to compensate such a probe.
The instrument cannot compensate for probes that may have gain and/or offset errors that are too great
(>2% or >50 mV offset). If these errors are within the specified limits of your probe, you may want to use
anot
her probe. If the errors are outside the limits, have your probe checked by service personnel.
Probe compensation is not recommended for the P5050 passive probe. This probe typically has little gain
and
offset error, and therefore, the performance improvement after a probe compensation is not worth
the time needed to do the probe compensation.
Wha
t do you want to do next?
Go to a step-by-step procedure to compensate active probes. (see page 571)
Go to a step-by-step procedure to compensate passive probes. (see page 572)
Learn more about the Vertical controls. (see page 505)
DSA/DPO70000D, MSO/DPO/DSA70000C, DPO7000C, and MSO/DPO5000 Series 503
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