The SV 102A+ is a Class 1 dual-channel noise dosimeter, integrating two distinct functionalities: dual-channel noise measurement and Class 1 frequency range capability. The dual-channel feature allows for simultaneous noise exposure assessment on both sides of the head or in configurations such as underneath a headset and on a shoulder, enhancing the accuracy of noise exposure data in diverse working environments. This capability is particularly beneficial for assessing asymmetric noise exposure, where noise may predominantly come from one direction.
Class 1 accuracy of the SV 102A+ signifies its ability to measure a full frequency range from 20 Hz to 20 kHz. This is a critical feature for workplaces with high-frequency noise sources, as standard Class 2 dosimeters typically measure up to only 8 kHz. The wider frequency range makes sure that the instrument meets the requirements of ISO 9612 for Class 1 instruments, which is important for accurate noise assessment in places where there is a lot of high-frequency noise.
The SV 102A+ also features audio recording, facilitating unattended noise measurements. This capability allows for the playback of recorded noise to identify and verify noise sources, a requirement under ISO 9612 for distinguishing work-related noise from non-work-related noise sources. Additionally, the dosimeter’s 1/1 octave analysis feature enables the precise selection of hearing protectors based on the specific noise environment, further enhancing workplace safety.
MIRE (Microphone in Real Ear) measurement is a specialized technique used with the SV 102A+ for assessing noise exposure from sources in close proximity to the ear, such as in call centers, pilot helmets, and headsets. This method involves placing a microphone at the entrance of the ear canal to accurately capture the noise exposure experienced by the individual. The SV 102A+ supports 1/3 octave analysis for MIRE measurements, a requirement to meet ISO 11904-1 standards for recalculating noise doses based on actual noise levels inside the ear canal.
For MIRE measurements, the SV 102A+ utilizes a high sampling rate of 48 kHz, consistent with Class 1 instrumentation standards. This high sampling rate is essential for capturing the full spectrum of noise frequencies encountered in close-ear environments, ensuring accurate and reliable noise exposure assessments.
The combination of dual-channel measurement, Class 1 frequency range capability, and MIRE measurement technique positions the SV 102A+ as a preferred instrument for noise exposure assessment in military, aerospace, and call center applications worldwide. Its comprehensive features ensure that it meets the stringent requirements for noise measurement and analysis in these specialized fields.
Microphone in Real Ear Measurements
Integrating Noise Dosimeter and Class 1 Sound Level Meter
Simultaneous Measurements with Two Microphones
A comprehensive overview of the SV102A+ Dual Channel Dosimeter, detailing its full specifications and features. Designed for occupational noise measurement, the SV102A+ meets international standards including ISO, OSHA, and NIOSH, ensuring accurate and efficient noise exposure assessment in various workplace environments. With its dual-channel capability, it allows for simultaneous noise measurements from multiple directions. The inclusion of the Microphone in Real Ear (MIRE) measurement technique offers precise noise exposure analysis directly at the ear, suitable for complex noise environments such as aviation and call centers. This catalog section is an essential resource for understanding the capabilities, features, and technical specifications of the SV102A+ Dual Channel Dosimeter
Class 1 Noise Measurements in the Workplace
Occupational noise dosimetry, aligned with standards such as ISO, OSHA, and NIOSH, is key to protecting workers from harmful noise. The challenge of accurately measuring noise exposure comes from its variable and multi-directional nature in the workplace. The SV102A+ Dual Channel Dosimeter addresses this by allowing simultaneous noise measurements from different directions with a single device, making the process more efficient and less intrusive for workers. In environments like aviation or call centers, where noise sources are complex, traditional dosimetry methods may not be sufficient. The Microphone in Real Ear (MIRE) measurement technique is critical here. MIRE provides a direct assessment of noise exposure at the ear, leading to a more accurate understanding of auditory risks. Additionally, the SV102A+ facilitates unattended noise dosimetry with audio recording and frequency analysis features. These are important for analyzing noise sources after measurement, helping to identify specific noise contributions and develop effective mitigation strategies.
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Learn how to operate the SV 102A+ noise dosimeter with this step-by-step tutorial.
SV 102A+ Dual Channel Noise Dosimeter
Applications
Hardware Features
Sound measurements features
