- Simultaneous detection of 3 bands (frequency bands)
- With analog output
- headphone connection
- Memory function
- Comparator gate input
- Comparator delay time setting
- Crest factor counting function (optional)
The VC-3100 vibration comparator is an enhanced version of the popular VC-2100 vibration comparator, and is a high-performance signal processor that enables "product pass/fail judgment based on vibration values" and "detection of scratches, wear, grease depletion, etc., through equipment diagnosis" of bearings. In addition to peak and RMS vibration values, it can also measure crest factor values*, making it possible to measure and judge bearing abnormalities more accurately and reliably than ever before. Each vibration level can be displayed numerically or as a bar graph, and vibrations can also be confirmed as sound using headphones. With its 3-band (frequency band) simultaneous digital signal processing function and various built-in processing functions that can be selected and used, it greatly contributes to "quantification of sensory testing," which was previously considered difficult. Furthermore, it is equipped with a comparator gate input function that extracts only the necessary vibration phenomena based on timing signals from sequencers and other devices, and a comparator delay time setting function that outputs an alarm signal if vibrations exceeding the judgment level continue for longer than a set time. As an automatic judgment and continuous monitoring device, it can be widely used for maintenance of production equipment and automatic quality control of various products.
<Note> Crest factor refers to:
It is defined as the ratio of the peak value to the RMS value of the waveform (peak value / RMS value). It is also known as the "crown factor." With peak and RMS values, the vibration value changes relatively depending on the size of the bearing (larger bearings have larger RMS vibration values, and even larger peak values in abnormal conditions), but since the crest factor value is calculated as the ratio of the peak value to the RMS value, the vibration value is not affected by the size of the bearing, making it possible to judge the degree of abnormality such as damage more accurately. A larger measured crest factor value indicates a greater degree of abnormality.
