Gracey & Associates Hire and Calibration
Vibration Analysis, Measurement and Testing Equipment
Gracey & Associates hire a range of vibration meters and vibration testing equipment, supplied by the leading manufacturers.

All our
vibration meters, analysers, microphones,
accelerometers etc., are delivered with current calibration certificates, traceable to UKAS. Our ISO 9001 laboratory is audited by British Standards and we are Sponsor Members of the Institute of Acoustics.
Gracey & Associates are an independent organization with over 35 years experience of sound and vibration solutions and this web site has over 500 pages of information.
Hire is the cost effective solution with overnight access to the latest and best instrumentation.
- Gracey & Associates 01933 624212
- BSI accreditation for noise and vibration instrument hire and calibration
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Over 500 pages of information on the hundreds of meters and systems we have available for hire.
This page deals with general vibration measurements for other applications click a link
Accelerometers
Ground Vibration
Hand Arm Vibration White Finger and Whole Body Vibration
Vibration Measurement using a noise meter
| B&K 2250 Sound and Vibration Analyzer |
£ 30 a day * |

The B&K 2250 Sound Analyzer is also a
Vibration Meter if you add an accelerometer set.
♦ The 2250 meter has built-in engineering units so you can read directly in vibration units.
♦ All our 2250s also include the
BZ 7223 Frequency Software for
vibration analysis in real time.
♦ For narrow band
noise and vibration analysis see also the
BZ 7230 FFT - Fast Fourier Transform version, detailed below.
♦
Vibration monitoring is also included using the
BZ 7226 Recording/Signal Capture feature to SD Card.
Delivered with an input adaptor and a B&K 4370 general purpose accelerometer set, or a Metra KS76 IEPE set unless you select an alternative from the same list.
We recommend you add a B&K 4294 Calibrator Exciter, it provides a stable acceleration of 10 m/s2 at 159 Hz.
B&K 2250 Sound and Vibration Meter details
| B&K 2250 FFT Analyzer - Sound and Vibration Version |
£ 37 a day * |

Frequency analysis based on the
FFT - Fast Fourier Transform algorithm is the tool of choice 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.
The 2250 with the BZ 7230 FFT software has many narrow band features :-
♦ Real time operation [no loss of data] up to 20 kHz.
♦ 100 up to 6400 lines giving a resolution down to 16 mHz
♦
Linear and exponential averaging
♦ Signal capture and recording
♦ Engineering units, SI metric and UK imperial units
♦ Acceleration, velocity, displacement .......
Plus Max hold, spectrum overlay, zoom, tachometer function, trigger, transient and continuous signals, RMS, PWR, PSD, ESD, Peak, P-P ...... etc., software also included for analysis, reporting and downloading to a PC.
Delivered with an input adaptor and a B&K 4370 general purpose accelerometer set, or a Metra KS76 ICP set unless you select an alternative from the same list.
We recommend you add a B&K 4294 Calibrator Exciter, it provides a stable acceleration of 10 m/s2 at 159 Hz.
B&K 2250 FFT Analyzer details
| B&K 2511 Vibration Meter |
£ 14 a day * |

Bruel & Kjaer battery operated
vibration meter with
charge amplifier input, for measuring
♦ Acceleration
♦ Velocity
♦ Displacement
♦ Imperial & Metric units - RMS and TRUE PEAK-PEAK.
Ideal, for use, as a front-end, signal conditioning unit into FFT or other analyzers, DAT recorders etc.
It also includes a 160 Hz reference signal to calibrate complete measurement systems
B&K 2511 Vibration Level Meter details
| B&K 2537 Vibration Meter |
£ 13 a day * |

Bruel & Kjaer hand held, battery operated meter for measuring vibration in the workplace.
♦ Suitable for general purpose vibration measurements in the range 0.1 ms
-2 to 3000 ms
-2
♦ Simultaneous RMS & Peak measurements with linear and hand arm weightings.
♦ Calculates the daily
vibration exposure levels based on short term measurements.
♦ Meets BS EN ISO 5349 and 8041 Standard requirements.
Delivered with a 4505 accelerometer + a DB 3585 mounting bracket and nylon fixing ties for
vibration white finger surveys
B&K 2537 Vibration Meter details and accessories
| B&K 2635 Charge Amplifier |
£ 12 a day * |

Multi purpose, low noise
charge amplifier and signal conditioning unit. Ideal vibration front-end for DAT recorders, analyzers etc., with BNC output.
Frequency Range 0.2 Hz to 100 kHz with adjustable upper and lower frequency limits
+ internal oscillator for system calibration
B&K 2635 Charge Amplifier details
| B&K 4294 Vibration Calibrator - hand held |
£ 5 a day * |

Battery operated for calibration of vibration systems - accelerometers up to 70 grams in weight.
The RMS acceleration level of 10 ms
-2 = a velocity of 10 mm/s and a displacement level of 10 µm at 159.15 Hz, accuracy ± 3 %
B&K 4294 Vibration Calibrator details
| DI 2200 Dual Channel FFT Analyzer |
£ n/a * |
The DI 2200 has been withdrawn as the instrument can no longer be maintained. For FFT analysis please see the B&K 2250 FFT version. The following information is for reference purposes only.

FFT - Fast Fourier Transform analyzer ideal for
vibration analysis and acoustic source definition if two or more discrete tones are inside the same 1/3-octave band.
♦ DC - 40 kHz in 10 ranges with engineering units and zoom
♦ FFT with up to 1600 lines resolution
♦ Memory card and RS-232 output to a serial printer, PC etc.,
♦ Frequency, Time Domain, Transfer Function measurements etc.
♦ DC or AC coupled voltage inputs, plus IEPE accelerometer connection - both channels
♦ Small battery operated
Plug the DI-2200 into the analogue output of a suitable sound level meter or connect one or more accelerometers into the analyzer IEPE inputs - see the Metra KS76 below.
DI 2200 Analyzer details
* Our standard hire charges are based on a 4-day minimum period,
other options.
- Gracey & Associates 01933 624212
- BSI accreditation for instrument hire and calibration
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over 500 pages of information plus a
glossary with hundreds of terms and parameters and our
calibration service.