As an inspection whether there is nick or not on the gear box, sensory test by operator (touching with hand, hearing the difference with stethoscopic probe) is popular. This way of inspection cannot avoid human-error and variation in quality. The judgment by quantitative value is necessary in order to improve the quality and stable supply of product. The VC-3200 can detect whether there is nick or not on the product and make determination by quantitative value.
 

The VC-3200 can setup three kinds of frequency band and make Pass/Fail judgment of each band based on the rms, peak or power averaging calculated value (same for all bands). Also it has comparator delay time setting functions and auto operation function. The comparator delay time setting function removes the unwanted signal at the time of starting measurement, and the auto operation function can control the timing of judgment by inputting a control signal from external device such as PLC*. Although the VC-3200 can be operated by 24VDC (22 to 26VDC) as standard, you have an alternative to use it at 100 VAC by connecting the optional AC/DC convertor VC-0352.
 

Connecting the VC-3200 to a PC via RS-232C interface enables storing the measured data and so on.
 

By connecting a pair of commercially sold headphones to the VC-3200 it is possible to make hearing check of the vibrating sound. Moreover, it can be used instead of conventional stethoscopic probe. Output signals are provided for each band, enabling an observation for vibration phenomenon on each frequency band separately.