Hand‐held Analyzer Types 2250‐W and 2270‐W for Vibration Measurements
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P R O D U C T D ATA 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 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 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,

Types 2250-W and 2270-W Hand‐held Analyzer Types 2250‐W and 2270‐W are both innovative, 4th generation analyzers from Brüel & Kjær with an award‐winning design based on extensive research amongst sound and vibration technicians, engineers and consultants from around the world. Type 2270‐W, with its dual‐channel measurement capability, and the single‐channel Type 2250‐W, can host many of the same measurement application modules. Two such modules are FFT Analysis Software BZ‐7230 and Enhanced Vibration and Low Frequency Option...

Fig. 3 Spectrum view showing high dynamic range and high frequency resolution FFT spectrum analysis (Fig. 3) is ideal for noise or vibration source identification with 6400 lines of real‐time frequency analysis at better than 5 Hz resolution – all the way to 20 kHz. Tapping the screen turns on the Frequency Correction algorithm*, which computes peak frequencies with ten times better resolution. The wide dynamic range (over 150 dB) allows accurate sound and vibration measurement on the first attempt. FFT analysis is all about the details and the ...

Applications Machinery Analysis and Troubleshooting The portability of the analyzer gives you easy access to any product, lets you recall a baseline reference spectrum, and then compare it instantly with a spectrum you have just measured. Fig. 6 View showing an RPM readout, with harmonic cursors and vibration measurement units You can set the tolerance window feature over a range of frequencies to warn of machinery failure. Harmonic and delta cursors help you identify rotational and mesh frequencies, steering you efficiently toward operational deficiencies. The analyzer’s ...

Fig. 8 Left: Drawing the tolerance window by dragging the stylus Centre: Resulting tolerance window (set to check FFT lines) Right: Additional tolerance windows (set to delta sum) – up to 10 windows can be active and may overlap Settings and preferences for a particular application can be saved collectively in templates. By recalling a template, Type 2250‐W/2270‐W is ready for specific measurements in just seconds, including the specification of tolerances. Up to 10 tolerance windows per template can be active at the same time, making it possible ...

Product Development Early component performance evaluation can greatly improve product design. The FFT analyzer’s dual‐overlay display makes it easy to compare measurements between design iterations. Fig. 10 Vibration measurement using a hand‐held analyzer and Laser Tacho Probe Type 2981 You can also benchmark competitive and previous generation products. Use narrow‐band analysis to identify forcing functions and resonances to aid in setting the standards for the next generation product. 100059/1 100059/1 Measurement Partner Suite BZ‐5503 makes it easy ...

Uploading Measurement Data to Measurement Partner Cloud Fig. 12 Secure access to measurement data from anywhere Measurement Partner Field App (iOS/Android) Measurement Partner Cloud/Internet Measurement Partner Suite (PC) Direct connection: USB, LAN or modem Types 2250 and 2270 can send measurement data to Measurement Partner Cloud (MP Cloud) where projects are immediately available for post‐processing, sharing or storage subject to account capacity. Only authorized users have access to the data when it is the MP Cloud. You can create a Cloud account by ...

Post-processing Software Measurement Partner Suite BZ‐5503, in its basic configuration, comes with your hand‐held analyzer (see product data BP 2430). It is Brüel & Kjær's state‐of‐ the‐art data viewing and post‐processing toolbox for environmental noise and vibration. The free, basic configuration provides data archive, preview and export capabilities, software maintenance and online display. Archives can be stored locally, on network drives or, alternatively, in MP Cloud for easy sharing with anyone on the planet. Measurement Partner Suite also...