EFR GmbH products

There are different types of receiver for each field of application, varying in the form of construction and the number of controllable relays. For lighting management, for example, it is preferable to use a tall and slender device, suitable for mounting in the mast. For tariff switching tasks, there are radio ripple control receivers that can be three-point mounted on the meter’s crosspiece, or pick-a-back mounted directly on the meter cover-plate. There are also top-hat rail-mounting devices with an especially compact shape.

EFR Utility Sim – M2M Communication for the Energy Sector. The need of bidirectional communication in the energy networks is continuously increasing. For this purpose EFR GmbH provides M2M connectivity via mobile radio with national roaming SIM cards (allnet).

EFR’s three transmitters, each with a range of 500 kilometres, give reliable coverage over a large part of Central Europe. EFR’s three fixed transmitter stations are located at Mainflingen near Frankfurt am Main, at Burg near Magdeburg and close to the Hungarian capital Budapest. They transmit signals using long-wave radio frequencies that are reserved exclusively for radio ripple control throughout Europe. Long-wave transmission guarantees very wide coverage, and gives reliable usage of EFR’s signals across a radius of about 500 kilometres. Its radio waves penetrate deep into the earth and provide good reception even in low-lying valleys or basements.

The system-ready SGM-C2 four-line meter is a standard device for measuring active power with residential and commercial customers as a “modern measuring device.” The meter has an integrated RS-485 interface for system integration. Designed as a compact unit, it fulfils the functional requirements of the FNN industry standard. The SGM-C2 can be connected directly for both power directions (consumption and infeed) and is also available as a dual-tariff meter with external control. With the BAB adapter connected externally to the RS-485 interface, the SCM-C2 can be upgraded to a “smart measuring system.”