70 Agilent InfiniiVision 3000 X-Series Oscilloscopes User's Guide
3 Vertical Controls
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 1000:1 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 0.001 V/A.
When specifying the attenuation factor in decibels, you can select values
from -20 dB to 60 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.
3 In the Channel Menu, press Probe.
4 In the Channel Probe Menu, press Skew; then, select the desired skew
value.
Each analog channel can be adjusted ±100 ns in 10 ps increments for a
total of 200 ns difference.
The skew setting is not affected by pressing [Default Setup] or [Auto Scale].
To calibrate a probe
The Calibrate Probe softkey guides you through the process of calibrating
probes.
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