Pulsar Instruments plc

Avoid common mistakes when buying a decibel meter


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Why it pays to avoid quick fix solutions when it comes to noise monitoring

Whether you run or own a construction site, a metal cutting workshop or an open cast mine, as an employer of a noisy working environment, you must ensure that the hearing of the employees you are responsible for is protected.

In the UK The Control of Noise Regulations 2005 requires employers to reduce or prevent risks to health and safety from excessive exposure to noise at work. If employers don’t take the necessary action to protect workers’ hearing, they can be liable and could be taken to court. The UK is not alone as similar demands and expectations are put on employers around the world.

One way to help protect the hearing of workers is by monitoring the levels of noise they are exposed to. An effective method to do this is by using a decibel meter.

However, like most products, decibel meters can vary significantly in terms of efficiency, accuracy and cost. Some companies can make the mistake of buying low cost meters that provide ‘quick fix’ solutions. The problem being that such meters do not always provide accurate readings. Failing to produce precise noise level readings can result in companies not providing workers with the right hearing protection which could lead to noise-induced hearing loss.

Take a look at the following mistakes companies can make when choosing a decibel meter.

Mistake number one – Opting for the incorrect class of instrument

The class of a decibel meter represents its frequency range and accuracy. Whilst Class 2 decibel meters are generally considered to be sufficient for measuring general noise within an occupational setting, Class 1 models must be used in law enforcement and research and environmental applications.

Class 1 instruments typically measure a wider frequency range of noise. They also uphold a tighter tolerance than Class 2 models.

The problem is that when it comes to choosing a new decibel meter, some companies don’t realise that such a meter needs to be classified. In their ignorance, companies opt for non-classified meters or ones that are neither Class 1 nor Class 2, leaving them vulnerable to potential claims. It is also not uncommon for companies to panic and buy a Class 1 meter. In reality most standards, whether in the UK or around the world, only stipulate the use of a Class 2 meter, resulting in companies spending more money than necessary.

To ensure that you don’t make that mistake and you use a noise meter that complies with current regulations, read Part 2 and Part 3 of IEC 61672 – the standard for decibel meters.

Mistake number 2 – Buying from a less-established manufacturer

Failing to buy a decibel meter from a reputable, well-established manufacturer may save you money in the short-term but it could cost you more in the long-run. Buying a decibel meter from a trustworthy and long-standing manufacturer will give you the reassurance that your decibel meter will not only withstand the test of time but will be compliant with the criteria health and safety professionals require.

Mistake number 3 – Opting for a cheaper model

It might be tempting to spend just £50 on a decibel meter or, even more appealing, downloading an app onto your iPhone that claims to measure sound. Less expensive sound monitoring devices haven’t typically undergone the testing that is required by noise legislation. Consequently, these cheaper models are likely to measure levels of noise less accurately than a device that might cost more but has been designed and undergone stringent testing a reputable manufacturer.

An inaccurate reading of as little as 3 decibels can expose employees up to four times the legalised levels of noise. For example, someone exposed over many years to a level of 86dB(A) for 8 hours has four times as much risk of suffering noise-induced hearing loss as a colleague working at 80dB(A). This seemingly small error could end up costing your company a lot more money, its reputation and its future if a claim was made against it. It is worth noting that claims, if successful, typically average between £3,000 and £5,000.

Pulsar Instruments is one manufacturer of noise monitoring equipment you can rely on. Pulsar provides an extensive range of decibel meters and other noise measurement devices that are top-quality, durable and compliant with the latest regulations. Call us on 01723 518011 for more details today.

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