Hand-held Analyzer Types 2250-W and 2270-W for Vibration Measurements
using FFT Analysis Software BZ‐7230 and Enhanced Vibration and Low Frequency Option BZ‐7234
Types 2250‐W and 2270‐W are the easy, safe and clever approach to machinery noise and vibration assessment, diagnostics and quality control. The analyzers combine advanced analysis techniques, tap‐and‐drag operation and a wide dynamic range to become the perfect on‐location machine vibration tool. Acceleration, velocity, and displacement are parameters traditionally used to assess a machine's health when initially installed or after maintenance, repair or overhaul (MRO). The Crest Factor is used to detect and diagnose defects in roller element bearings. Frequency analysis based on the fast Fourier transform (FFT) algorithm is an advanced tool for measurement and diagnostics of machinery noise and vibration. The frequency ‘profile’ of a machine is its fingerprint, revealing its sources of noise and vibration and their paths to the measurement position.
Uses and Features Uses
• Machinery troubleshooting • Product development • Quality control and inspection • Maintenance, repair and overhaul (MRO) • Single‐channel FFT analysis of sound or vibration Features
• Wide dynamic range • PC software for analysis, reporting and archiving included • User‐defined metadata to aid documentation Enhanced Vibration • Time domain integration to velocity and displacement
• RMS and true peak in acceleration, velocity and displacement • Peak‐to‐peak in displacement • Optional 1/3‐octave spectra in acceleration or velocity • Crest factor with 1 kHz high‐pass filter FFT Spectra
• Up to 6400 lines of analysis • Spans from 100 Hz to 20 kHz in a traditional 1‐2‐5 sequence • Improved frequency resolution: down to 16 mHz, broadband or zoom • Dual‐overlay spectrum display
• Compare spectrum to reference spectrum • Max. hold spectrum • Capture transient events with signal level triggers, including pre‐trigger Measurements • Transducer database • CCLD input for accelerometers
• Relate noise or vibration to rotational speed with simultaneous tachometer • Measurements in SI (metric) and UK/US units • Unit scaling (RMS, Pwr, PSD, ESD, Peak, P‐P) Quality Control
• Tolerance windows with check against preset limits • Quality Check template for quick and clear results • TTL output for control of external devices Signal Recording (optional)
• Record input signal, one channel for Type 2250‐W and two channels with Type 2270‐W, for later playback or analysis, 16‐ or 24‐bit