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equipped with an automatic standby function which can be deactivated at start-up

for long-term measuring campaigns.

They can now be powered in two ways: either by batteries or by an external power

supply (standard µUSB socket). On the control unit, the 3 LEDs (green, yellow and

red) indicate, respectively, the battery status, the status of the automatic standby

function and any measurement capacity overshoots. The single-phase versions oer

4 measurement calibres, while the three-phase versions oer 3.

Compact and lightweight, with small or large diameters, the MiniFlex® and

AmpFlex® models can encircle all types of conductors, whatever their dimensions

or shapes (busbars, cable strands, etc.).

Their flexibility means they can be used comfortably wherever you are and whatever

the space available. They are easy to set up in any residential or industrial electrical

cabinets. They are also ideal for the needs of both the industrial and tertiary sectors

and for measurements on single or three-phase installations.

The new MiniFlex® MA110 and MA130 sensors and AmpFlex® A110 and A130 sensors are

PRINCIPLE OF ROGOWSKI COILS

These AmpFlex®and MiniFlex® are based on the Rogowski coil˝ backed by

electronics in a control unit.

Because there are no magnetic circuits, these sensors are particularly

lightweight and flexible. This also means there is no saturation eect or risk

of overheating.

This specific feature ensures excellent linearity and low phase shift.

APPLICATIONS

AmpFlex® and MiniFlex® sensors are ideal for applications in a wide

range of sectors:

• maintenance and repair teams in industry,

• energy distribution, transmission and production companies

• transport companies (rail, etc.)

• laboratories and test departments, R&D

• certification organizations

Extra-long cable

Dierent clamping

diameters

IP54 casing

3 status LEDs

3 or 4 calibres

depending on models

1000 V CAT IV IP67

flexible sensors

BNC connection with

banana adapter

A new quick and simple opening/closing system,

ensuring that they are easy to handle even with

safety gloves.

= k

= kI

Figure 14-10 : Principe de la bobine de Rogowski