Chauvin Arnoux MA130-250 [P01120663] 3000A AC MiniFlex Three-Phase Current Sensor, 25 cm Sensor Length. The MiniFlex® MA130 is a flexible sensor comprising an active part (Rogowski
coil) linked to a casing containing electronics.
Unlike a current clamp with magnetic circuits, the MiniFlex® models are flexible
and are not subject to magnetic saturation constraints, so they offer excellent
linearity, low phase shift and a large dynamic range for measurement (up to
several kA) while remaining easy to use.
The sensors’ flexibility makes it simple to clamp and measure any conductor,
whatever its type (cable, busbar, strand, etc. and accessibility.
The click-lock system for opening and closing the coil is specially designed for
use with safety gloves.
The MiniFlex® MA130 can be connected to the AC voltage inputs (mV AC,
V AC) of any power analyser, logger or measuring instrument equipped with
BNC plugs.
The MiniFlex® MA130 can be powered by batteries or a standard external power
supply. If the power supply fails, the instrument’s batteries take over.
To maximize the battery life, the MiniFlex® MA130 model has an automatic
standby system which can be deactivated at start-up to perform long-term
measurement campaigns. The MiniFlex® MA130 model has 3 green, yellow
and red LEDs indicating, respectively, the power supply status, the status of
the automatic standby function and any overruns of the measurement capacity.