Keysight N7040A, Руководство пользователя

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1 Overview
6 N7040A/1A/2A Rogowski AC Current Probes User Guide
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.
Figure 1 N7040A/1A/2A Probe Components (The figure shows the N7042A probe)
Rogowski Coil
Free end of
the Coil
Ferrule
Batteries
Output Cable
Connecting Cable
BNC Output
Socket
External Power
Adapter Socket
Power Button
Status Indicator
LED
Power Supply
Adapter
Component Description
Rogowski Coil 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
“Probe Handling Precautions" on page 16 to know
more.
Refer to the
Table on page 13 for the Rogowski coil’s length (circumference) and thickness applicable for
the three models.
Free end of the Coil Use this free end to clip / unclip the coil.
Refer to the topic
“Probe Handling Precautions" on page 16 to know about the correct insertion and
handling techniques while clipping / unclipping the coil.
Ferrule Insert the free end of the coil into the ferrule while clipping / unclipping the coil.