Gracey & Associates Hire and Calibration
Acoustic Calibrators
All our meters are delivered with calibration certificates. However it is good practice to apply an acoustic calibrator, just before and after the measurements to check the system including any cables etc., is OK and hasn't been damaged since it left us.
It is also standard practice to include these calibrator tests noting the type and serial number of the calibrator in any reports.Sound Level Calibrators - General Purpose
| Type | Calibration Level | Frequency | Accuracy | Microphone | Daily Rate * |
|---|---|---|---|---|---|
| B&K 4230 | 94 dB | 1 kHz | Class 2 | 1/2" and 1" couplers ** | £ 2 |
| B&K 4231 | 94 and 114 dB | 1 kHz | Class 1 | 1/2" and 1" couplers ** | £ 3 |
| CEL 282 | 114 dB | 1 kHz | Class 2 | 1/2" and 1/4" couplers | £ 2 |
| CEL 284 | 114 dB | 1 kHz | Class 2 | 1/2" and 1/4" couplers | £ 3 |
| Nor 1251 | 114 dB | 1 kHz | Class 1 | 1/2" and 1" couplers ** | £ 3 |
| Nor 1252 | 114 dB | 1 kHz | Class 2 | 1/2" coupler | £ 2 |
For more details click the relevant blue hyperlink.
** 1/4 inch couplers available for these calibrators - add to order if required.
| B&K 4226 | Multi-Function Sound Level Calibrator - Class 1 | £ 25 a day * |
|---|
Laboratory working standard - acoustic or electrical tones. Multi-level and multi-frequency
An ideal calibration system for in house testing of both your microphones and meters
B&K 4226 Acoustic Calibrator - details
| GRAS 42AA | Pistonphone Calibrator - Class 1 | £ 6 a day * |
|---|
Battery operated for field checks of complete systems and laboratory calibration of measurement microphones
114 dB at 250 Hz or 105.4 dBA - Certification traceable to UKAS
GRAS 42AA Pistonphone - details
| B&K 4297 | Sound Intensity Calibrator | £ 11 a day * |
|---|
For use with the B&K 2260E Sound Intensity Meter and the 3595 Sound Intensity Probe For on-site 'field calibration
sound pressure calibration residual sound intensity index verification B&K 4297Sound Intensity Calibrator - details
| GRAS 51AB | Sound Intensity Calibrator | £ 8 a day * |
|---|
For phase and level calibration of both 1/2" and 1/4" sound intensity microphone pairs. The 51AB may be used for residual intensity testing, level and the particle velocity calibration
as specified in BS EN 61043
GRAS Sound Intensity Calibrator - 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 at 160 Hz,
equivalent to a velocity of 10 mm/s equivalent to a displacement level of 10 µm B&K 4294 Vibration Calibrator - 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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Acoustic Calibrator keywords: noise calibrator, vibration calibrator. sound level calibrator, sound meter calibrator, accelerometer calibrator.