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Outline
The VA-12 is a portable vibration analyzer with FFT analysis function
specially designed for making measurements in the field.
It comes with the Piezoelectric Accelerometer PV-57I equipped with magnetic
attachment.
Because the VA-12 is equipped with the constant-current power supply, the
accelerometers with integrated preampli er (CCLD type) can be connected.
Also the charge output type accelerometers can be connected by combining
VP-40 with VA-12.
The VA-12 offers three analyzer modes: vibration meter mode, time waveform
mode, and FFT mode.
In vibration meter mode, acceleration, velocity, displacement, acceleration
peak, and acceleration crest factor can be measured simultaneously.
In time waveform mode, the waveform of acceleration, velocity, displacement
or acceleration envelope curve can be displayed with up to 8192 samples.
In FFT mode, the frequency analysis of acceleration, velocity, displacement or
acceleration envelope curve can be displayed with up to 3200 spectral lines.
The TFT color display has a resolution of 240 × 320 dots and is designed to
be easy to read, regardless of whether the unit is used indoors, outdoors, or
in dark locations. Membrane switches ensure easy operation, and an overload
LED indicator is also provided.
The buffer performance of the unit improves if the supplied protective cover
is installed. (When shipping the VA-12, the protective cover is installed.)
The SD card is used for the memory medium.
Features
• DSP chip performs digital integration and rms processing
• Simultaneous display of acceleration, velocity, displacement, acceleration
peak, and acceleration crest factor in vibration meter mode
•
24-bit A/D converter achieves 80 dB dynamic range for FFT analysis
•
Overlay display of measurement data and recall data possible in FFT mode
• 1000 data × 100 store names available for data of any type
• Data store function with speci ed start time and store interval
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