Gracey & Associates UK Hire
B&K 2250 Sound Level Meter - home page
The hand-held B&K 2250 is designed for all sound and vibration measurement, analysis and recording applications and is available for hire now.
For details on the features, options and accessories click a link
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B&K 2250 - Home Page - this page B&K 2250 - Summary Table B&K 2250 - Specifications Options and software included BZ 5503 - PC - Utility Software BZ 7222 - Sound Analysis Software BZ 7223 - Frequency Analysis Software BZ 7224 - Logging Software BZ 7226 - Sound Recording Software |
Other options available BZ 7225 - Enhanced Logging Software BZ 7227 - Reverberation Time Software BZ 7228 - Sound Insulation Software BZ 7230 - FFT Measurement Software BZ 7231 - Tonal Assessment Software |
| Accessories etc., Environmental and Factory Noise Kits and other popular accessories For vibration measurements see the 2250 Sound and Vibration Analyzer with or without the FFT option |
| B&K 2250 : with the BZ 7222, BZ 7223, BZ 7224 and BZ 7226 software built-in | £ 24 a day * |
Uses ♦ Environmental noise assessment and monitoring ♦ Occupational noise - exposure ♦ Selection of hearing protection ♦ Noise reduction ♦ Product quality control ♦ Class 1 sound measurements to the latest standards ♦ Real-time analysis in 1/1 and 1/3 octave bands ♦ Analysis of time histories - broadband and spectra logging ♦ Measurement annotation using text and/or voice ♦ Documentation of measurements - voice and recorded sound | Features ♦ Large, high-resolution, touch sensitive colour screen ♦ Data storage on plug-in memory cards ♦ Standard USB computer interface ♦ Dynamic range in excess of 120 dB ♦ 3 Hz - 20 kHz broadband linear frequency range ♦ Real-time frequency analysis in 1/1 or 1/3 octave bands ♦ Data can be logged to obtain a time history for later analysis ♦ Sound recording of measured signal during measurements ♦ Personal measurement, display and job setup ♦ PC software included for setup, archiving, export and reporting |
v2 2008 - added features Occupational Health - exposure, dose, Apeak, Lep,d etc.,
v3 2009 - added features NR and NC Curves, Loudness level, Speech Interference etc.,
All our B&K 2250 meters include the BZ 5503 PC Utility Software, calibration certificates for the meter, microphone and preamplifier.
For measurements up to 165 dB add a GRAS 40BF 1/4" microphone.
For vibration measurements see the 2250 Sound and Vibration Analyzer with or without the FFT option
Summary Table for the B&K 2250 software modules.
| B&K 2250 features summary table with the options listed + the BZ 7226 sound recording option which is also supplied with all our meters |
BZ 7222 SLM Software |
BZ 7223 Frequency Analysis |
BZ 7224 Logging Software |
BZ 7225 Enhanced Logging |
| these three 2250s options included | ||||
| 120+ dB Dynamic Range - no need for range switching | ♦ | ♦ | ♦ | ♦ |
| Sound levels up to 140 dB with supplied Microphone Type 4189 ** | ♦ | ♦ | ♦ | ♦ |
| IEC/ANSI SLM standards Type/Class 1 | ♦ | ♦ | ♦ | ♦ |
| Frequency weightings A, C, Z (linear) and time weightings F, S, I | ♦ | ♦ | ♦ | ♦ |
| Free-field/diffuse-field correction | ♦ | ♦ | ♦ | ♦ |
| Pre-set time start/stop | ♦ | ♦ | ♦ | ♦ |
| Back-erase - last 5 seconds of measurement data | ♦ | ♦ | ||
| Context-sensitive help | ♦ | ♦ | ♦ | ♦ |
| Voice and text annotation of measurements | ♦ | ♦ | ♦ | ♦ |
| Display colour-schemes optimised for day, night, indoor and outdoor use | ♦ | ♦ | ♦ | ♦ |
| Personal log-in - protects your personal set-ups from other users | ♦ | ♦ | ♦ | ♦ |
| Broadband statistics based on LAeq, LAF or LAS | ♦ | ♦ | ♦ | ♦ |
| Broadband frequency range: 3 Hz - 20 kHz | ♦ | ♦ | ♦ | ♦ |
| Transfer of data files while measuring (USB or modem) | ♦ | ♦ | ♦ | ♦ |
| Recording of measured signal during measurement | ♦ | ♦ | ♦ | ♦ |
| 1/1-octave spectra (centre frequencies 8 Hz to 16 kHz) | ♦ | ♦ | ♦ | |
| 1/3-octave spectra (centre frequencies 6.3 Hz to 20 kHz | ♦ | ♦ | ♦ | |
| Spectral statistics based on LAF or LAS | ♦ | ♦ | ♦ | |
| Periodic Reports of all measured data | ♦ | |||
| Report Period 1 min to 24 h | ♦ | |||
| Ldn, Lden, Lday, Levening, Lnight | ♦ | |||
| Logging of all or selected broadband parameters and spectra | ♦ | ♦ | ||
| Logging interval 1 s to 24 h | ♦ | ♦ | ||
| LAeq and/or LAF logged every 100 ms | ♦ | ♦ | ||
| Profile display | ♦ | ♦ | ||
| Profile overview of entire measurement | ♦ | ♦ | ||
| Continuous measurement | ♦ | |||
| Markers on profile display | ♦ | ♦ | ||
| Recording of sound during noise events | ♦ | ♦ | ||
All our 2250 analysers include the features in the first three columns. We have also included the Enhanced Logging Software option to demonstrate the many useful features it offers. If you require this or any other option - just order it.
** for measurements up to 165 dB add a GRAS 40BF 1/4" microphone.
Please order any extra items from the lists below and only pay for what you need. However we do recommend the B&K 7815 Explorer - Data Viewing PC Software or the Type 7820 Evaluator Environmental Noise software to 'handle' the large amounts of data downloaded using the free BZ 5503 PC Utility delivered with the 2250 meter.
2250 0ptions available
BZ 7225 - Enhanced Logging Software
BZ 7227 - Reverberation Time Analyzer Software
BZ 7230 - FFT Measurement Software
BZ 7231 - Tonal Assessment Software
Manufacturers' Specifications
Sound level meters and particularly microphones are very susceptible to damp, so should not be used outside unless protected - see our environmental kits.
Environmental Noise Kits.
| B&K 2250 | Environmental Noise Kit ** | £ 34 a day * |
| B&K 2250 | Sound Analyzer - detailed above |
| B&K UA 1404 | Outdoor Microphone Kit |
| GA 91E1-00 | Outdoor Meter Enclosure with rechargeable batteries etc., |
* * For 'secure' monitoring inside properties see the Matron III system
Factory Noise Kits.
| B&K 2250 | Factory Noise Kit | £ 29 a day * |
| B&K 2250 | Sound Analyzer - detailed above |
| B&K 4231 | Sound Calibrator - class 1 |
| GA 80G1-00 | Tripod - adjustable 0.4 m to 1.45 m high, maximum load 5 kg |
Sound and Vibration Kits.
| B&K 2250 | General Purpose Sound and Vibration Kit | £ 30 a day * |
| B&K 2250 | Sound and Vibration Analyzer - with 1/3 octave analysis |
| B&K 4370 | Accelerometer Set - or a Metra KS76 IEPE accelerometer set unless you select an alterative from the same list. |
| B&K 2250 | FFT - Narrow Band Sound and Vibration Kit | £ 37 a day * |
| B&K 2250 | Sound and Vibration Analyzer - with 1/3 octave + FFT analysis |
| B&K 4370 | Accelerometer Set - or a Metra KS76 ICP accelerometer set unless you select an alterative from the same list. |
Popular Accessories.
| B&K 4231 | Acoustic Calibrator - class 1 |
| B&K 7815 | PC Software - Explorer |
| B&K 7820 | PC Software - Evaluator |
| B&K AO 0441 | Cable - microphone extension - 10-pin Lemo, 3 m long |
| B&K UA 1404 | Outdoor Microphone Kit |
| GA 51M2-C2 | DC Lead - 2-pin male to car battery clips |
| GA 80G1-00 | Meter stand 0.4 - 1.45 m high |
| GA 91E1-00 | Outdoor Meter Enclosure with rechargeable batteries etc., |
| Kestrel 2000 | Pocket Weather Meter |
We also hire Windows XP laptops loaded with the above software.
For the full range and more details see the Bruel & Kjaer lists
B&K also have a spreadsheet relating to the 2250 and memory use. To get to the link click here
* Our standard hire charges are based on a 4-day minimum period - details and other options.
- Gracey & Associates 01933 624212
- BSI accreditation for instrument hire and calibration
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B&K Help Line - 01438 739000