Features

• Integrating portable sound level meter performing either spectral or statistical analysis.
• Could be integrated with other options to extend its application scope at any time; the firmware can be updated directly by the user by means of the supplied Noise Studio program.
• Conforms to IEC 61672-1 of 2002 and IEC 61672-1 ed. 2.0 of 2013, IEC 60651 and IEC 60804 specifications with class 2 or class 1 tolerances.
• The constant percentage bandwidth (CPB) filters meet IEC 61620 class 1 specifications.
• Possibility to log the noise time profile with parallel frequency weightings and time constants acquisition.
• Automatically stores noise analysis of multiple acoustic descriptors as a data recorder, with a storing capacity of more than 23 hours at the maximum temporal resolution.
• For long term noise monitoring, it’s possible to record together, with a time period from 1 s to 1h, 5 programmable parameters, the average spectrum and complete statistical analysis: with the “Memory module” option HD2010.O0 (it doubles the standard memory capacity), the HD2020UC/A can store, with a time interval of 1min, the noise multi-parameter and statistical analysis for more than 10 days.
• Possibility to increase even further the memory capacity using the HD2010MC module.
• This device is supplied with a 2GB SD memory card.
• Offers a versatile trigger function for the noise event capture, with the additional possibility to filter false events; this is made verifying that the noise event level variation has a certain duration.
• For each identified event, it’s possible to record 5 integrated parameters (user defined), average spectra in octave and third octave bands and the noise levels probability distribution sampled during the specific event.
• Advanced functions of HD2010UC/A analyser, allow multi-parameters profile acquisition in parallel with reports sequences with dedicated parameters, average spectra and complete statistical analysis.
• If an undesired sound event produces an over-load indication, or simply alters the result of an integration, its contribution can be excluded using the versatile Back-Erase function.
• The impulsivity of a noise source is easily evaluated (according to criteria defined in UNI 9432 standard) measuring the A weighted equivalent sound pressure level with Impulse time constant (LAeqI).
• The cyclic, fluctuating and impulsive noise sources identification is simple thanks to the powerful recording functions of HD2010UC/A analyser which allows, using a single measurement setup, to solve the most of situations encountered in working environments.
• The HD2010UC/A sound level meter is suitable for sound level monitoring, acoustic mapping, and the assessment of the acoustic climate with capture and analysis of sound events.
• When measuring traffic noise near airports, railways and roads, the sound level meter can be used as a multiparameter sound recorder, combining spectrum (option “Third octave” from 25Hz to 12.5KHz) and statistical analyser features.