HD2110L: Class 1 Integrating Sound Level Meter and Advanced Analyzer


 

Integrating Class 1 sound level meter with spectral or statistical analysis with advanced data logging functions

HD2110L is composed of spectral or statistical analysis with advanced data logging functions. Class 1 of IEC 61672 and class 1 of IEC 61260.

The instrument is designed to deliver maximum performance in the analysis of acoustic phenomena with particular attention to regulations on environmental noise and building acoustics. 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:

  • Integrating sound level meter class 1 according to IEC 61672-1:2002
    (Certificate I.E.N. Type Approval Certificate No. 37035-01C), IEC 61672-1:2013,
    IEC 60651 and IEC 60804.
  • Octave and third octave filters class 1 according to IEC 61260:1995 and IEC
    61260-1:2014
  • Microphone in compliance with IEC 61094-4.
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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) (opz. HD2110.O1)
  • Narrow band FFT real time spectral analysis from 7Hz up to 22KHz with variable resolutions from 1.5Hz a 100Hz. Short Leq profile acquisition with 1/32s period
    (opz. 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 identified)
  • 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 filters (with shifted bands)
  • 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 installation and reclamation
  • Production quality control
  • Measurement of machine noise, sound power measurement (sound pressure method)
  • Architectural acoustics and building acoustics measurements

Modules

Noise Studio NS1: ‘Workers protection’ module

This application module analyses noise and vibrations in the workplace according to the European directives 2003/10/EC, 2002/44/EC, UNI 9432 and ISO 9612.
 

Noise Studio NS2A: ‘Acoustic Pollution’ module

This application module analyzes sound level profiles for the assessment of the noise climate, airports noise, road traffic noise and railway noise according to 2002/49/CE Directive.
 

Noise Studio: NS3 ‘Acoustic Insulation’ module

This module performs building acoustics calculations for the assessment of acoustic performances of buildings, according to ISO standard. The measurements necessary for the analysis of a building are grouped in a project to simplify their storage and search. Also, technical reports, comments, graphics, photos, etc. which remain part of the work can be added to the same measures and, if necessary, may be found easily.
 

Noise Studio: NS4 ‘Monitor’ module

This software module allows to control the sound level meter with PC in remote location. The main functions are:

  • PC based real time display of acquired data, in graphical and tabular form.
  • Possibility of connection via modem with the sound level meter.
  • Acquisition of sound level data directly into the mass memory of the PC (monitor function).
  • Management of diagnostic and calibration functions.
  • Automatic acquisition and monitoring programme.
  • Possibility to log synchronized audio records along with the sound level measurements, using a trigger function.

When used in combination with HD2011NMT stations, it allows management of monitor networks, HD2011NMT station remote setup, remote calibration, real time remote monitor, FTP server data storage management, multiclient access management, combined noise and weather data acquisition (if supported by HD2011NMT hardware) and management of alarms on user-settable threshold level conditions
 

Noise Studio: NS5 “Environmental noise” module

Detailed analysis of acoustic pollution and environmental noise sources. The software performs statistical and spectral analyses; manually and automatically identifies, by means of the trigger function, single and combined sources. Partial sources levels can be calculated and compared to background noise. Masking and automatic search for pulse and tonal components. Automatic report and comparison with the limits, both absolute and differential. Some of the functions require option HD2110.O1 “Third octaves”.

Downloads

HD2110L: Class 1 Sound Level Meter Datasheet

HD2110L: Class 1 Sound Level Meter Manual

HD2110L: Class 1 Sound Level Meter Overview

Module NS1: Workers Protection

Module NS2: Acoustic Pollution

Module NS3: Acoustic Insulation

Module NS4: Monitor

Module NS5: Environmental Noise

MC21E: Type 1 Microphone Datasheet

MC21P: Type1 Microphone Datasheet

Microphones

MC21E – Type 1 Microphone – Free Field – Prepolarized


 
The MC21E is a condenser type microphone, pre-polarised (0V) and with a standard diameter of ½”. The frequency response, optimised for free field, is flat from 3.2 Hz to 20 kHz. Capsule type WS2F according to IEC61094-4:1995. Supplied with calibration paper.
 
Applications

  • Acoustic measurements with front source
  • Sound pressure level measurements in accuracy class 1
  • Optimised free-field response
  • Outdoor measurements

 

MC21P – Type 1 1/2′ Condenser Free Field Microphone, Class 1, Polarized 200V , 50 mV/Pa


 
200V polarized condenser microphone, sensitivity 50 mV/Pa, optimized for free field measurements over the frequency range 3.15Hz ÷ 20 kHz. WS2F type capsule according to IEC61094-4:1995. Supplied with calibration card. Compatible with the preamplifiers HD2110PL.

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