Agilent Technologies DSO-X 4022A, Руководство пользователя

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86 Agilent InfiniiVision 4000 X-Series Oscilloscopes User's Guide
3
Vertical Controls
To specify the probe attenuation
This is set automatically if the oscilloscope can identify the connected
probe. See Analog channel inputs (see
page 42 ).
The probe attenuation factor must be set properly for accurate
measurement results.
If you connect a probe that is not automatically identified by the
oscilloscope, you can manually set the attenuation factor as follows:
1 Press the channel key.
2 Press the Probe softkey until you have selected how you want to specify
the attenuation factor, choosing either Ratio or Decibels .
3
Turn the Entry knob to set the attenuation factor for the
connected probe.
When measuring voltage values, the attenuation factor can be set from
0.1:1 to 10000:1 in a 1- 2- 5 sequence.
When measuring current values with a current probe, the attenuation
factor can be set from 10 V/A to 0.0001 V/A.
When specifying the attenuation factor in decibels, you can select values
from - 20 dB to 80 dB.
If Amps is chosen as the units and a manual attenuation factor is chosen,
then the units as well as the attenuation factor are displayed above the
Probe
softkey.
To specify the probe skew
When measuring time intervals in the nanoseconds (ns) range, small
differences in cable length can affect the measurement. Use
Skew
to
remove cable- delay errors between any two channels.
1 Probe the same point with both probes.
2 Press one of the probes associated channel key.