Rental of homologated and calibrated sound level meters.

We rent class 1 sound level meters, with valid calibration certificate and with the capacity to perform legal metrology according to the current legislation in Spain and Europe.

From Madrid, Barcelona, Lugo or Marbella we serve to all Spain in 24 hours.

We only work with reputable instrumentation and brands (CESVA / Svantek). We offer advice and support in measurements.

Areas of Work

CESVA SC-420 SOUND LEVEL METER / ANALYZER

The Cesva SC-420 sound level meter is a noise meter suitable for immission and isolation measurements. It has been approved in accordance with the WELMC regulations in force in Spain. It analyzes noise for monitoring, occupational health and safety requirements. Its maximum frequency is 20Khz which is almost at the level of ultrasound.

It also has:

  • Spectral analysis capability in thirds of octaves
  • Real-time statistical noise analysis
  • Possibility of downloading the measurements to PC via USB
  • Weighting with the most common filters A, C and Z as well as detection for different types of time situation: Fast / Slow / Impulse

 

SOUND LEVEL METER APPLICATION AREAS

Noise measurement has become a major health concern. Today's societies mostly appreciate silence. With a sound meter such as the CESVA SC-420 you will obtain control over the most common sources of noise, being able to measure noise with legal validity that allows the understanding of the origin of the noise and its possible denunciation.

 

Areas of Work

MAIN SOURCES OF NOISE

  • Neighborhood noise: Televisions, parties and illegal activities in apartments, incivility: sometimes a noisy neighbor is a serious problem.
  • Noisy activitiesMusic bars, concerts, night clubs, discotheques, bars. They frequently do not comply with the regulations. If you are the owner of one of them, you can also hire us to protect your rights and ensure the legality of your establishment.
    • Traffic noise and services: Road traffic, toilets, ambulances, etc..: Your home should have a sufficient level of isolation so that all these activities do not disturb you.
  • Household installations that generate noise: washing machines, dishwashers, dryers, etc.

UNATTENDED USE

The analyzer sound level meter also has the ability to be programmed to measure noise automatically if certain levels are exceeded or certain conditions occur, so that it is possible to monitor noise for more than 24 hours.

 

NOISE MEASUREMENT IN INDUSTRIES AND ACTIVITIES

A decibel meter also has a multitude of industrial applications:

  • Prepare homologation tests for products and machinery.
  • Control manufacturing processes.
  • Perform noise level controls in the company as part of the health and safety policy.
  • Measuring sound over long periods of time: The instrument allows measurements to be stored for more than 24 hours. However, it should be noted that the instrument is not designed to work outdoors or unattended.

 

NOISE ORDINANCE

In most municipalities the noise ordinance establishes similar limits and conditions. This legislation on noise control is transferred to the municipalities. In most cases, they establish 25dBa as the maximum sound immission volume for bedrooms at night and 30dBa for the rest of the rooms.

 

ADVICE ON NOISE POLLUTION REDUCTION

In case of need, we can help you to reduce noise pollution, intervening in different areas:

  • Acoustic insulation: Whether it is a noise emitter or receiver.
  • Noise control: Noise limiters, noise deflection
  • Legal action and defense against noise.

 

WHAT ARE THE PARTS OF A SOUND LEVEL METER?

The sound level meter or decibel meter basically consists of the following blocks.

  • Microphone and pre-amplifier: The microphone captures the sound to be evaluated, while the pre-amplifier conditions it for electronic processing. Both components must be calibrated and approved in a professional instrument.
  • Signal integrator / processor unit: They evaluate the sound signal. The sound levelis calculated by weighting by different sound sensitivity curves ( fletcher-mundson curves) that integrate the way a sound is perceived depending on the frequency and intensity of the sound. The human ear is much more sensitive to noise at intermediate frequencies (corresponding to the human voice) than at high or low frequencies.
  • Display: They show the measurement in a convenient way.
  • Storage: They store the measured results over time, so that they can be analyzed and interpreted a posteriori.

 

In order to have a valid noise measurement all these components:

  • They must be approved and form part of a single instrument.
  • Must be calibrated
  • They must be appropriate for the function assigned to them (frequency band, measurement range, noise dynamic range, etc.).

 

WHAT PARAMETERS DOES THE CESVA SC420 MEASURE?

The SC-420 can measure the perceived noise level using:

  • Multiple weighting curves, including A, required in most municipal ordinances. Also T and many others
  • Storing measurements in periods of up to 24 hours
  • Integrate the weighting in the indicated period of time.
  • Perform spectral analysis: necessary to calculate the low-frequency or tonal component penalty factors required in municipal ordinance immission calculations.

Laeq stands for "Level a-weighted equivalent".

I.e.: Equivalent sound level realized with A-weighting. It is established by IEC 61672-1:2013 for sound level meters.

A-weighting establishes a weighting for each frequency band that corresponds to the sensitivity of the human ear to these frequencies. Thus, extremely high or low frequencies (which we hear less intensely) are weighted less. With age there is less sensitivity to high and low frequencies (presbycusis). It is the most commonly used.

C-weighting has a smoother adaptation and is used less often.

Z-weighting is flat: no frequency weighting is performed.

Areas of Work

COMPETITIVE PRICE AND LONG EXPERIENCE

We have all the instruments and experience for:

  • Rent, sound level meters. Approved and with current calibration.
  • Carry out immission and insulation measurements on walls and facades by ourselves.
  • Drafting reports and expert reports for the lawsuit or legal defense.
  • Competitive price

Phone: 607 36 99 66 / jjurjo@k2ingenieros.com

 

Pros

Fast service

Approved instrumentation and legal metrology capabilities

Sound level meter for very frequent use in Spain (Cesva SC-420)

Cons

Costs should be anticipated

Review Overview
Speed
Customer service and support
Price
SUMMARY

We needed to homologate the sound level emitted by our electricity generation machinery. In 24 hours we had at our disposal the class 1 sound level meter in Murcia for the measurements, with valid calibration certificate. In addition, they advise on its use.

4.7