|17,5 (S17)||17,5 (P12/17)||67,5 / 22,2||24 (N)||12,5 (N12)||17,5 (N17)
The task of active isolating amplifiers is to galvanically insulate input and output signals, to reinforce them and/or to convert them into another level or another signal form (current or voltage). There are also different intrinsically safe versions available.
DC Signal Isolators
Passive DC signal isolators serve to galvanically insulate a DC signal, which is transfered into a DC current or DC voltage signal depending on the device version. These prevents the transfer of interference voltages and currents and help to solve grounding problems in meshed signal networks.
Active DC signal isolators require an auxiliary power supply. However, the DC signal to insulate and the associated output quantity can be freely parametrized, linearized and reinforced. These reduces significantly the number of variants needed.
We offer pure alarm units for DC current and voltage signals, programmable isolating amplifiers with trip point functionality up to universal transducers which provide partly several alarm outputs.
Our power packs provide the DC power supply for 2-wire transducers and transfer the measured variable unchanged to the electrically insulated output. These differ in their capability for FSK communication, the number of supply circuits and their open or short-circuit monitoring and signalling.
Power supply units designed for FSK communication are used in conjunction with "intelligent" 2-wire transducers which are capable of dialogue and operation according to the FSK principle and the HART or user-specific protocol.
The series also includes "intrinsically safe" versions [EEx ia] IIC with an intrinsically safe input. These operate in conjunction with intrinsically safe 2-wire transducers located in explosion hazard areas.