N7026A Probe
N7026A 150 MHz AC/DC High Sensitivity Current Probes User’s Guide
17
Powering the Probe
You can power the N7026A probe in the following two ways:
Using the External DC Power Supply
When the external power supply is plugged into the probe, the power supply received from
the oscilloscope is automatically disconnected and the external power supply is used. If the
AC adapter output voltage is incorrect, the probe will automatically switch to oscilloscope
power.
Table 5
Powering the N7026A Probe
Powering Option
When to Use This Powering Option
Using the oscilloscope’s AutoProbe
interface
The probe’s output connector has the AutoProbe 1 interface that
allows the probe to automatically receive ± 12V power supplies
from the oscilloscope on connection.
With this powering option, the maximum peak current that you
can measure is ± 15A.
Using the external DC power supply The probe has an external power supply socket and it ships with
a power supply adapter to allow you to use an external power
supply to power the probe.
An external power supply is needed if you want to use the probe
to measure currents larger than the maximum peak current you
can measure when powering the probe from the oscilloscope.
With an external power supply, you can measure the maximum
current of ± 30A
RMS
.
External power supply
plugged into N7026A
