Parts are manually loaded by operator to specially designed fixture mounted on the bottom plate. Measurement is manually started by hardware button or by hardware pedal. After start the probe is inserted into the thread and an equidistantly synchronized signal is captured. It is further processed to detect any deviations from the expected waveform. Several approaches can be applied to detect different types of defects. Different tolerances can be applied depending on the product and customer requirements for the thread quality. Various features (not only thread) can be evaluated from the readout.

Machine status and evaluation of measurement can be realized by various method depending on the customer. First simple possibility are LED indicators on the machine. Second possibility is to connect a monitor. On the monitor operator can see advanced evaluation of measurement and statistics. 

System provides calibration and teach-in capabilities, online visualization and statistical processing, storage of data about rejected parts, connection via ethernet and other data processing functions.