FRER Srl products

Multifunction transducer, suitable for three-phase three or four wires systems with unbalanced load (single phase on demand), even with distorted waveforms. It allows the transmission via a communication data interface (RS485 with ModBus RTU protocol as standard) of all the main characteristic variables of an electric network, including active and reactive energy counting, greatly reducing the complexity and the costs of installation. In addition,  one output programmable as alarm or pulse output  for energy retransmission are optionally available as option.  This multifunction transducer is supplied with a software which permits to set the required parameters. It allows to easily set input values (CT & VT ratios), system parameters (such as THD reference, integration time, correct phase sequence, ...) , serial communication parameters, digital alarm/pulse output and any analogue output features. 

Multifunction transducer for DC systems. The voltage input is directly wired to the line, while the input proportional to the current is derived from shunts.  It allows the transmission via a communication data interface (RS485 with ModBus RTU protocol as standard) of all the main characteristic variables of a DC network, including energy and Ah counting, greatly reducing the complexity and the costs of installation. In addition,  one output programmable as alarm or pulse output  for energy retransmission are available as option. This multifunction transducer is supplied with a software to set required parameters. It allows to easily set input values (Shunt ratio), system parameters (such as sampling time), serial communication parameters, digital alarm/pulse output and the analogue output features.