Sound Level Meter or Noise Dosimeter?

The industrial environment has changed drastically in recent decades with an increased level of automation within the workplace. This has given rise to many changes in employee work patterns. It used to be the case on the majority of production lines, an employee would stay in one place during their shift.  So monitoring the worker’s noise exposure with a traditional sound level meter was the answer.

However, with the increase in completely automated production lines, employees now may supervise several machines. Meaning the only way to monitor precisely an individual’s exposure to noise is by using either a sound level meter or a dosimeter.

Where it is difficult to get close to employees with a sound level meter, as in the case of forklift truck drivers, or where workers are exposed to many different noise levels, they should wear a noise dosimeter. This is the case more often than not in the modern workplace, where if you are using a standard meter you would have to measure the noise levels at each location, find out how long the worker stays at that location, and then calculate an overall exposure. This can take hours of calculations to perform and will not always result in accurate measurements.

Our SV 104A personal noise dosimeter works in a way whereby you have a clip at the top and clip at the bottom of the dosimeter making it extremely straightforward to attach. Due to its small size, it allows for mounting in more innovative ways i.e. hard hat or close to the ear.

Another useful feature of our SV 104A is the dosimeter will log the noise data so that when downloaded to a PC, the time history of the noise can be viewed. This gives the ability to analyse when and where high noise exposures occur. This can be even more useful when the dosimeter is placed on an employee who is prepared to make a list of the times and jobs they were performing throughout the day. This will give the employer the ability to see which operations most need noise control in order to reduce exposure.

One advantage of dosimeters is that if employees wear them for complete working shifts, the noise dose is measured in full. However, if you need to make several measurements of different employees in the same day, a dosimeter can be moved to different employees, as long as the measurements taken for each employee are representative of their working day. Most modern dosimeters also will project the noise dose forward to the standard eight hours, so no calculations are needed.

It all looks very much dosimeter driven, but if you are unsure based on your requirements then we are here to help to talk options.

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