User`s guide

Using the N2790A Probe

Powering the N2790A

The N2790A probe is powered by the autoprobe interface found on Agilent

InfiniiVision and Infiniium Series oscilloscopes.

Selecting the Correct Attenuation on the Probe and the Oscilloscope

The probe has two modes of operation, 50:1 and 500:1 attenuation. Select the

desired attenuation on the probe (via the switch on the probe) and the correct

probe attenuation setting on the oscilloscope. This will ensure that accurate

voltage readings can be made directly from the oscilloscope.

Adjusting the Probe Offset Level

The probe offset level is adjusted using the tool provided with the N2790A probe.

Adjust the offset level by turning the potentiometer adjustment located on the

autoprobe pod.

Measurement Tips

• Use the 50:1 range on the differential voltage probe for smaller signals,

such as ripple on a high voltage reference lead.

• Connect the red probe cable to a more positive or more negative voltage

level than the black probe cable.

• There is an overrange LED on the probe to indicate when you have

exceeded the maximum voltage of the probe.