Atec VB2000-T User Manual

Commtest VB2000-T
FFT Vibration Analyzer
Measure and Display Velocity, Acceleration and Displacement
Features & Specifications
Powerful MAS Analysis Software
Programmable via a PC
Two channels, two accelerometers, simultaneous measuring
8 MB expandable memory stores 8000-plus spectra
Access to fault frequencies on over 120,000 bearings
Tachometer for automatic capture of running speed
3200 Line FFT capability
20 kHz Fmax
95 dB Dynamic Range
Built-in RS232 Interface for data exchange
Battery operated
Accelerometer Input
Number of channels: 2
Sensitivity: 100 mV/g nominal
Tachometer Input (Kit shown to the left)
Input type: Optically isolated, accepts TTL pulse
Sensor: Optical sensor with reflective tape, included
Optical sensor range: 20mm to 1m
Parameter Indication
Displays: Acceleration, velocity, displacement
Maximum Levels: ±80g (800m/s), ±4in/sec (100mm/s), ±400mil (10mm)
Dynamic signal range: 95 dB or greater (typical at 400-line resolution)
Harmonic distortion: Less than -70 dB typi cal
Display ranges: 60 dB or 120 dB visible range with manual shift
Units: g or m/s2, in/s or mm/s, mil or mm, adB, vdB
Graph types: Spectrum (frequency domain), waveform (time domain)
Magnitude display: Overall rms value, cursor-position value
Cursors: Standard, Dual & Harmonic
Frequency response: ±0.2 dB from 10 Hz to 5kHz; ±0.5 dB from 3 Hz to 20 kHz
Spectrum Parameters
Frequency scale: Hz, cpm
Y-axis: Acceleration, velocity or displacement
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