The Qualistar+ range of three-phase network analysers with colour graphic display and built-in rechargeable battery.

They plays three roles, and can be used:

• to measure the RMS values, powers, and perturbations of electric distribution networks.
• to deliver a snapshot of the principal characteristics of a three-phase network
• to track the variations of various parameters over time.

The measurement uncertainty of the devices is better than 1% (not counting the uncertainties due to the current sensors). The devices are also very flexible, with a choice of sensors allowing measurements ranging from a few milliamperes (MN93A) to several kiloamperes (AmpFlex®). The devices are compact and impact resistant. The ergonomics and simplicity of their interface make usage pleasant. They are intended for the technicians and engineers of electrical installation and network inspection and maintenance teams