Introduction - Keysight N7040A User Manual

1 Overview

Introduction

The N7040A/1A/2A Rogowski AC Current probes allow you to monitor AC current flowing through a
conductor. These probes provide accurate, non-contact measurement of AC currents over a broad
frequency range thereby ensuring high bandwidth performance with minimal disruption to the circuit
under test.
These probes have a thin, lightweight, flexible, and simple to use clip-around Rogowski coil that
enables currents to be measured in the most difficult to reach parts and confined spaces of a circuit
under test. The coil size is independent of the magnitude of the current to be measured provided the
di/dt ratings for the probes are not exceeded.
BNC Output
Socket
Connecting Cable
Ferrule
Free end of
the Coil
Rogowski Coil
Figure 1
Component
Rogowski Coil
Free end of the Coil
Ferrule
6
External Power
Adapter Socket
N7040A/1A/2A Probe Components (The figure shows the N7042A probe)
Description
The sensor loop of the probe that is clipped around a conductor under test. This coil is thin and delicate
and must be handled with care. Refer to the topic
more.
Refer to the Table on page 13
the three models.
Use this free end to clip / unclip the coil.
Refer to the topic "Probe Handling Precautions"
handling techniques while clipping / unclipping the coil.
Insert the free end of the coil into the ferrule while clipping / unclipping the coil.
"Probe Handling Precautions"
for the Rogowski coil's length (circumference) and thickness applicable for
on page 16 to know about the correct insertion and
N7040A/1A/2A Rogowski AC Current Probes User Guide
Power Button
Batteries
Status Indicator
LED
Output Cable
Power Supply
Adapter
on page 16 to know