The Bruel & Kjaer 2270-W is a compact and rugged 2-channel hand-held analyzer. Connect one or two accelerometers and the 2270-W is a highly accurate vibration meter. The instrument comes with an applications package enabling basic vibration measurements of level and crest factor. More advanced measurements, such as vibration source identification, machinery analysis and troubleshooting, and quality testing and inspection, can be added. Enhanced Vibration and Low Frequency Option BZ-7234 provide velocity and displacement measurement to the 2270-W.
The Bruel & Kjaer 2270-W has all the capabilities of 2250-W plus the benefits of two independent channels, enabling simultaneous measurement of two separate signals. You can add your existing preamplifier and microphone (or microphones), to give you the perfect replacement sound level meter (SLM).
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 Types 2250‐W and two channels with Type 2270‐W, for later playback or analysis, 16‐ or 24‐bit