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Data File Structure
This section explains the structure of the les used to store measurement
data on the SD card.
The following four types of les are used.
• Vibration meter data store le
This type of le is stored when the VA-12 is in vibration meter
mode.
• Waveform data store le
This type of le is stored when the VA-12 is in time waveform
mode.
• FFT data store le
This type of le is stored when the VA-12 is in FFT mode.
• WAVE le
This type of le is stored along with the FFT data store le when
the VA-12 is in FFT mode and the waveform recording function is
enabled. (See the “Recording Waveform Data” section.)