Current Measurement; Measurement Principle; Use - Chauvin Arnoux MiniFLEX MA100 Notice De Fonctionnement

2. CURRENT MEASUREMENT

2.1. MEASUREMENT PRINCIPLE

The sensor provides an image of the derivative of the current analysed.
The electronic housing provides an image of the integral of the sensor output.
The resultant of these two operations on the output of the housing is the image of
the current analysed.
The sensor used provides:
very good linearity with no saturation effect (and so no heating);

a broad measurement dynamic range, up to several kA;

insensitivity to direct current (it is possible to measure the AC component of any

AC + DC signal);
light weight (no magnetic circuit).


2.2. USE

2.2.1. CONNECTION
Connect the housing to a multimeter having an input impedance of at least 1MW.
Switch on the multimeter and set it to AC voltage measurement.
In the case of a BNC output, connect the cord to the input of an oscilloscope in
AC mode. The low point of the input of the oscilloscope may be either grounded
or isolated.
1
mV
V
+
COM