The WG 20 power supply/isolator is used to supply intrinsically safe 2-wire transmitters. It supplies the transmitter with power and trans- mits the measurement signal to the output with high accuracy.
The WG 20 provides Safe Isolation and high insulation from the input to the output and to the power supply.
An additional measurement current input allows use as a highly accurate standard signal isolator in hazardous areas. High supply voltage, good hazardous area ratings and the simple LiveZero (4...20 mA) / Dead Zero (0...20 mA) switching allow universal applications.
The WG 20 achieves an extraordinarily high transmission accuracy for hazardous area applications. The control range of the measuring circuit extends to the negative values and allows strictly linear transmission also in the zero range.
The encapsulation technique allows maximum operating safety, long-time stability, and disruptive strength even under extreme conditions.