The DIN Mounting Rail Amplifier GM 40 amplifies the signals of SG sensors to output signals conforming to standards The narrow housing shape allows space- saving mounting near the sensors in switch cabinets on standardized DIN mounting rails. A galvanically separated supply voltage range of 10 .. 30VDC and the analog out- puts of ±5V/±10V resp optional current output allow the direct signal processing with a PLC-Control. All control elements are reachable behind a detachable plexiglas panel on the front side. The sensitivity adaption of the sensor takes place on-site by a DIL-switch. Preload (tara) can be adjusted. A control signal switch allows to activate the control signal in the sensor (if availa- ble). By this, the adjustment and the sub- sequent evaluation can be checked at any time. Interference signals and transient condi- tions of the measured signal can be de- creased by the input filter. The fine adjustment of the amplification and the zero point as well as the filter oc- curs through potentiometers.