The Type 5015A... is not only a charge amplifier but an universal Charge Meter with a graphical liquid crystal display. However, the 19" rack module is also suitable for measurements in an industrial environment. It can display instantaneous, peak and average values as well as reference deviations. State-of-the art technology allows the naturally occurring interference to be almost entirely eliminated. The instrument is distinguished firstly by its excellent technical data and secondly by its extremely simple operation.