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Speci cations
Waveform recording function (exclusive use for recording)
During FFT averaging processing, waveform data can
be saved on SD card in WAVE le format (max. 1 MB
per le).
(FFT analysis using WAVE les cannot be performed
on VA-12.)
Recording time examples:
10 seconds at 20 kHz frequency span,
2000 seconds at 100 Hz frequency span
Trigger
Trigger modes Free-run, Repeat, Single, Timer
Trigger source: External signal, input level
Trigger level: Can be set in steps of 1/8 of full scale on one-sided
amplitude
Trigger slope: +/− (direction for input signal to cross trigger level)
Pretrigger function:
Waveform data sampling starts from a point preceding
the current point by 1/8 of frame time
Display
Display Color TFT LCD, 240 × 320 dots
Backlight type: EL
Output accuracy (unit electrical characteristics)
Acceleration (ACC) range full-scale ±2% (80 Hz)
Velocity (VEL) range full-scale ±3% (80 Hz)
Displacement (DISP) range full-scale ±5% (80 Hz)
Display content
Measurement data:
Processing result, cursor, measurement parameters,
overload history
Status information:
Current date/time (24-hour format), overload, trigger
settings, waveform recording settings, operation com-
ments etc.
Status: Power supply type (AC, batteries), remaining battery
capacity (5 steps), SD card information, graph zoom,
waveform recording, trigger settings etc.
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