Chauvin Arnoux MA 100 Manual De Instrucciones página 22

Switch the electronic housing on by sliding the switch to a position. The green
indicator lights.
Press the yellow opening device to open the flexible coil.
Open it, then place it round the conductor through which the current to be measured
flows (only one conductor in the sensor).
Close the coil. In order to optimize measurement quality, it is best to centre the
conductor in the coil and to make the shape of the coil as nearly circular as
possible.
Set the switch on the housing to the range providing the best sensitivity and check
that the red indicator does not light (saturation of the electronics, leading to a
measurement error).
Read the measurement on the multimeter or on the oscilloscope, applying the
reading coefficient indicated on the label of the housing corresponding to the
setting of the switch.
30A~ rating
300A~ rating
3000A~ rating
2.2.2. DISCONNECTION
Remove the flexible coil from the conductor, then disconnect the housing of the
multimeter or oscilloscope.
30 A
300 A
OFF

100mV~/A~
10mV~/A~
1mV~/A~

ON