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HD 2110 L – Integrating Sound Level Meter – Portable Analyzer

The HD2110L is a precision integrating portable sound level meter, with multiparametric
data logging capability, providing both spectral and statistical
analysis. The instrument has been designed in order to offer high-performance
analysis of acoustic phenomena, with particular regard to legislation on environmental
noise. Attention has been paid to the possibility to update the instrument
in order to comply with the technical standards evolution. The HD2110L can be
integrated with additional options to extend its application range when required;
the fi rmware can be updated directly by the user by means of the Noise Studio
program provided with the instrument.

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Product Description

The HD2110L is a precision integrating portable sound level meter, with multiparametric
data logging capability, providing both spectral and statistical
analysis. The instrument has been designed in order to offer high-performance
analysis of acoustic phenomena, with particular regard to legislation on environmental
noise. Attention has been paid to the possibility to update the instrument
in order to comply with the technical standards evolution. The HD2110L can be
integrated with additional options to extend its application range when required;
the firmware can be updated directly by the user by means of the Noise Studio
program provided with the instrument.
Technical regulations:
• Class 1 sound level meter according to IEC 61672-1, 2002 (Type Approval
Certificate I.E.N. No. 37035-01C), IEC 60651 and IEC 60804.
• Class 1 octave and third octave filters according to IEC 61260
• Microphone in compliance with IEC 61094-4
Features
• real time spectral analysis in octave bands from 16Hz up to 16KHz
• real time spectral analysis in third octave bands with a double bank of filters:
from 16Hz up to 20KHz and alternatively from 14Hz up to 18KHz (option
HD2110.O1)
• narrow band FFT real time spectral analysis from 7Hz up to 22KHz with variable
resolutions from 1.5Hz a 100Hz. Short Leq profi le acquisition with 1/32s
period (option HD2110.O6)
• statistical analysis with probability distribution calculation in 0.5dB classes;
calculation of all percentiles from L1 to L99.
• parallel storage of all multi-parametric time profiles, reports at programmable
intervals and reports associated to specific noise events (automatically
or manually identifi ed).
• reverberation time measurement with steady noise interruption or with back
integration of impulse response (option HD2110.O4)
Applications:
• Noise monitoring with sound event capture and analysis function,
• Environmental noise measurement,
• Assessment of noise tones even if they are at a frequency located between
two standard third octave band fi lters (with shifted bands filters),
• Assessment of audibility of spectral components through real time comparison
with equal loudness curves (ISO226)
• Evaluation of noise exposition in workplaces, and selection of personal protective
equipment (SNR, HML and OBM methods),
• Sound insulation and reclamation
• Production quality control,
• Measurement of machine noise, sound power measurements (sound pressure
method)
• Architectural acoustics and building acoustics measurements.
Inputs and outputs
• LINE unweighted input/output (Ø 3.5 mm jack).
• DC output: A-weighed sound level with FAST time constant, updated 8 times
per second
• TRIGGER input/output (Ø 3.5 mm jack).
• Standard RS232C serial port in compliance with EIA/TIA574. Baud Rate 300
to 115200 baud.
• USB 1.1 serial port.
• External power supply 9÷12Vdc (Ø 5.5 mm jack).
Functionality description
Acquisition
 Possibility to log time profi les of 6 simultaneous parameters freely selecting
time or frequency weightings.
 Possibility to store the multi-parameter sound level analysis for more than 46
hours. Different time recordings can be recalled from internal memory and
displayed and replayed using “Replay” function.
 In addition to sound level profi les, it’s possible also to log at programmable
intervals of 1s to 1h, report sequences with dedicated parameters, average
spectra and full statistical analysis. A versatile trigger function allows to identify
sound events and store results with 5 dedicated parameters, average
spectra and statistical analysis.

Download

Manuals and Brochures here.  

HD2110L.pdf

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