Probing the Device Under Test 2
InfiniiVision 7000B Series Oscilloscopes User’s Guide 59
Manually Setting the Probe Attenuation Factor
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 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.
Units and Attenuation Factor
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