The Control of Noise at Work Regulations 2005 require, that when you are measuring noise exposures, that you use a sound level meter or noise dosimeter that meets certain standards. This is to ensure that the measurements are as accurate and repeatable as possible. This helps to reduce the uncertainties and potential sources of errors as much as possible. Email Send Read More…
Archive | FAQs
Questions & Answers
What to look for when choosing noise measurement equipment for Noise at Work
Noise legislation, designed to protect hearing and prevent noise nuisance, is becoming tougher and more widespread. It’s a response to our increased understanding of the damage that noise can do to hearing, and the negative impact it can have on quality of life in the wider community. It has resulted in a growing need to measure noise and rising demand Read More…
What do you need to measure for the Noise at Work Regulations?
When making measurements to estimate the noise exposure of a person at work, you need to ascertain the equivalent continuous A-weighted sound pressure level (LAeq) that represents the noise the person is exposed to during the working day. You also need to ascertain the maximum C-weighted peak sound pressure level or levels to which the person is exposed. The action Read More…
Do you have a question about noise measurement instruments?
At Cirrus we’ve been designing and manufacturing noise measurement instruments for over 40 years (2010 marked our 40th Anniversary!) so we’ve got a lot of knowledge and information stored  that we are happy to share with you. If you have a question about noise measurement instruments, let us know and we’ll try get you an answer. For example, we’ve already Read More…
Why Do You Need a Windshield on a Sound Level Meter?
A windshield is a very useful part of your noise measurement equipment and there are several reasons why you should use a windshield when you are making noise measurements. Reduce the effects of wind & air movement across the microphone Protect the microphone from damage Keep the microphone capsule clean Expand your Noise Knowledge!Signup to the NoiseNews blog for the Read More…
What to check after you noise measurement equipment has been calibrated? Part 5 of 6
When you get your noise equipment back after calibration, check that the work has been done correctly. It is vital that the calibration work has been done in accordance with the standards to which the instrument was designed. What this means is that it is not sufficient to just check the instrument using an Acoustic Calibrator. Follow this check list to Read More…
Why should you have your Cirrus instrument calibrated by Cirrus? Part 2 of 6
The simple answer is that we designed and manufactured your instrument so we know it inside out. We have all of the information, procedures and equipment needed to service and calibrate your equipment and if there’s anything wrong with it, we can fix it before it’s calibrated. Expand your Noise Knowledge!Signup to the NoiseNews blog for the latest article updates Read More…
Why do I need to calibrate my noise measurement instruments? Part 1 of 6
If you are using your noise measurement instrument to meet any Standards, Regulations or Guidelines it is essential that your equipment is measuring accurately. If you are working to the Noise at Work Regulations 2005, or any ISO or BS EN standard that requires the use of noise measurement equipment, the standards to which the equipment must comply will be Read More…
Just how loud is a vuvuzela? Part 1
Every since the Vuvuzela made itself heard at the World Cup in South Africa, there has been a wealth of information about how they could be damaging to hearing and how they compare to noises from aircraft taking off and so on. To see just how loud a Vuvuzela can be, we made some measurements with a small 35cm horn. Read More…
