The described dual-channel strain gauge measuring amplifier allows the supply and signal evaluation of two connected transducers with a strain gauge full bridge greater 300 ohms. The input and the output are galvanic isolated. The connection occurs in 4-leading technology. For further evaluation are standard analogue outputs available. The measuring amplifier is built-in in a robust EMC diecast aluminum enclosure (IP65), which is suited for the application in rough and industrial surroundings.

The amplification/channel of the amplifier can be adapted by an internal precision resistance The potentiometer Zx (Zero) and Gx (Gain), which are accessible after removing the enclosure lid, allow a correction of the calibration for each channel. With the help of an internal dip switch/channel, a change of the range of the potentiometer Zx (zero) can be reached. To allow a possible movement of the zero range, a possible basic load / tare can be suppressed with a resistance electrically.