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When powder is shifted through a sieve,
the sieve vibrates at smaller amplitude if it is
clogged. However, a sieve vibrates at larger amplitude
if there is any abnormality in a way of installing
equipment or motor. In this example, the VC-2200
detects and determines abnormal vibration by mounting
sensor (screw fixing) on a measurement object sieve.
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The VC-2200 can be setup two kinds of
frequency bands and make Pass/Fail judgment of each
band based on rms, peak values. Also it has the
comparator delay time setting function 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 control
signal from external device such as PLC*.
Although the VC-2200 can be operated by 24 VDC (22 to 26
VDC) as standard, you have an alternative to use it at
100 VAC by connecting the optional AC/DC converter
VC-0352.
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By connecting a pair of commercially sold
headphones to the VC-2200, it is possible to make
hearing check of 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.
* PLC: Programmable Logic
Controller
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