Gracey & Associates Hire and Calibration
Vibration at Work
The Vibration at Work Regulations require the vibration of hand tools and vibrating platforms are measured to establish they are 'safe'.
Factories also have a responsibility not to annoy their neighbours, see our environmental vibration monitoring section .This page briefly describes the most popular vibration at work meters and analysers. For more details, calibrators and other accessories, click the relevant link.
See also our Vibration Survey Kits and a Noise at Work section.
| B&K 2250 | Noise and Vibration at Work Meter | £ 30 a day * |
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The B&K 2250 Sound Analyzer doubles up as a Vibration Analyzer 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 to analyse the vibration levels in real time. For narrow band analysis see also the BZ 7230 FFT - Fast Fourier Transform version, detailed below. All our 2250 meters also include the BZ 7226 Recording/Signal Capture feature to SD Card. Delivered with an input adaptor and a B&K 4370 general purpose accelerometer 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 details
| B&K 2250 | FFT Analyzer - Noise and Vibration at Work Analyzer | £ 37 a day * |
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Frequency analysis based on the Fast Fourier Transform [FFT] 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, 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 details
| B&K 2511 | Vibration Meter | £ 14 a day * |
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Bruel & Kjaer battery operated vibration level 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 details
| B&K 2537 | Vibration Exposure Meter | £ 13 a day * |
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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 details and accessories
| B&K 4447 | Bruel & Kjaer Hand Arm, Whole Body Vibration Meter | £ 24 a day * |
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Hand-held system for measurement and evaluation of HAVS, WBV and WBV. In accordance with BS EN ISO 8041-2005, BS EN ISO 5349-2 and BS ISO 2631-1
For the measurement of:- hand arm vibration - HAVS vibration white finger - VWF whole body vibration - WBVIncludes a 3-axis accelerometer, hand arm attachments, charger and download software.
To measure whole body vibration exposure add the 4515-B-002 Seat Pad below.
more details, hand arm and whole body kits see also the Larson Davis HVM100 Meter below
| B&K 4515-B-002 | Triaxial Seat Pad - for whole body vibration measurements | £ 10 a day * |
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Specially designed for the measurement of whole body vibration exposure with the 4447 analyzer above. A triaxial accelerometer housed in a semi-rigid rubber disc and complies with ISO 7096, ISO 2631 and ISO 10326-1. It can be placed under a seated person, on a vibrating surface, or strapped onto the body. It detects vibration in directions along the body, back-to-front, and side-by-side - more details.
| DI 2200 | Diagnostic Instruments - FFT Analyser - Dual Channel |
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DI have withdrawn support for their 2200 FFT analyser. Over the years this analyzer built up a well deserved following; so rather than just remove it from our list we will retain this entry for a while to explain the situation and point returning DI-2200 customers towards it's worthy successor - the B&K 2250 with the FFT option. B&K 2250 FFT
| HVM100 | Larson Davis Hand Arm and Whole Body Vibration Meter - 3 axis | £ 24 a day * |
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Designed specifically for the measurement of Hand Arm and Whole Body Vibration. Simultaneous 3-channel measurements of the X, Y and Z vibration levels plus the vector sum,
using the relevant weighting curves.
Conforms to BS ISO 2631, 5349, 6841, and 8041 standards.
The Larson Davis HVM100 includes a SEN 020 triaxial accelerometer with mechanical adaptors for
VWF - vibration white finger measurements.
more details and kits - see also the B&K 2537, B&K 4447 and the Vibrock V-901.
| SEN 027 | Triaxial Seat Pad Sensor for HVM100 | £ 10 a day * |
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For Whole Body Vibration [WBV] measurements with the Larson Davis HVM100 Human Vibration Meter.
Sensitivity ≈ 100 mV/g ≈ 10 mV/ms-2
Sensitivity ≈ 100 mV/g ≈ 10 mV/ms-2
| Vibrock 901-1 | Vibration at Work Recorder | £ 25 a day * |
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Vibrock single channel, 3-axis vibration analyser for continuous level recording or logging of vibration events
Triaxial transducer for simultaneous 3-axis recording Measures velocity (PPV), displacement and acceleration LCD display of current levels and maximum levels Up to 300 events or several weeks continuous recording may be stored Uses 2 ordinary alkaline D cells which will power the system for up 20 days. Robust, weatherproof and lightweight Two stage audible alarm available Vibrock V901 Vibration Recorder details
| Vibrock 901-2 | Vibration at Work Recorder + VDV Vibration Dose | £ 33 a day * |
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Dual channel, 3-axis vibration analyser for continuous level recording or logging vibration events + a VDV transducer to record the whole body vibration dose levels.
Specifications for the velocity, displacement and acceleration transducer as above.
When measuring vibration dose using the VDV transducer, the instrument complies with BS 6472 and BS 7482 part 3
Robust, weatherproof and lightweight
Vibrock V901 Vibration Recorder details
* Our standard hire charges are based on a 4-day minimum period, details other options.
Gracey & Associates 01933 624212 hire@gracey.com
British Standards accreditation for noise and vibration instrument hire and calibration.
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Additional cables, calibrators etc., available for most equipment.
Vibration at Work Keywords: hire, vibration dose, vibration exposure, vibration work, vibration workplace
Glossary: charge amplifier