June 2006 -- Suitable for ac and dc primary currents up to 2000A true rms, AHR series extends LEM's existing family of split-core transducers that ranges from 100 to 1000A.
Devices in the AHR series measure dc signals as well as distorted current waveforms such as variable frequency drive (vfd) outputs.
They offer a choice of primary current measurement ranges from 500 to 2000A, a choice of standard output types (4-20mA, 0-5V or 0-10V), a wide power supply range (20-50Vdc) and large sensing apertures for non-contact measurement (104 by 40mm busbar, in addition to a 32mm diameter cable version).
The new transducers provide an absolute accuracy better than 1% of the nominal current over a broad range of inputs. This, coupled with a wide bandwidth from dc to 6kHz, an operating range of -40 to 70degC and true rms computation for non-linear loads or 'noisy' environments, makes them an excellent choice for industrial system designers, system integrators and automation distributors looking for accurate and cost-effective ac or dc current transducers, asserts the company.
LEM: www.lem.com
