Atec Commtest-VB2000-T - 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
• Single- or dual-plane balancing with printable reports
• 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 typical
• 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