The SMU-measuring devices of the series 2400 of keithley are specially designed for test applications that have a close coupling of feed and measurement is required. All Source meter models offer precise voltage and current feed as well as precise measurement. Each instrument is intended to be used as a highly stable, low noise DC-current source with a readback, as well as a low-noise 5½-Set multimeter. The result is a compact, einkanaliges DC-parameter test device which as a voltage source, current source, voltage meter, power meter and ohmmeter can be used, in particular in the manufacture of components and modules for communications, semiconductor, Computer, automotive and medical technology. Here is the source of an indispensable tool for many different characterization and test tasks in the context of production.This text is machine translated.