Keterangan
The HD2110 is a precision integrating portable sound level meter, with data logging
functions, performing both spectrum and statistical analysis. The instrument has
been designed in order to offer high-performance analysis of acoustic phenomena, with particular regard to Italian legislation on environmental noise. Attention has been
paid to the possibility of adjusting the instrument to regulatory modifications and to
the necessity of meeting its usersâ needs of today and tomorrow. The HD2110 can
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 Noise Studio program
supplied with the instrument.
TECHNICAL SPECIFICATIONS
Standards Class 1 group X according to IEC 61672: 2002 and class 1 according to IEC 60651: 2001 and IEC 60804: 2000
Class 0 according to IEC 61260: 1995
Type 1 according to ANSI S1.4-1983 and S1.43-1997
Class 1-D, order 3, Extended range according to ANSI S1.11-1986
½ inch Microphones MK221 condenser microphone, polarized ( 200V) , for free field, high stability, type WS2F according to IEC 61094-4
MK223 condenser microphone with coated membrane, polarized ( 200V) , for free field, high stability, type WS2F according to IEC 61094-4
( combined with the HDWME950 weatherproof microphone unit)
MK231 condenser microphone, polarized ( 200V) , for diffuse field, high stability, type WS2D according to IEC 61094-4
Dynamic range 23 dBA ÷ 143 dB Peak
Linear range 110 dB
Acoustic Parameters Spl, Leq, SEL, LEP, d, Lmax, Lmin, Lpk, Dose, Ln
Frequency Weighting Simultaneous A, C, Z ( only C and Z for Lpk)
Temporal Weighting Simultaneous FAST, SLOW, IMPULSE
Integration From 1s to 99 hours with Back-Erase function
Spectrum Analysis Parallel filters in real time complying with IEC61260 class 0 specifications.
Octave bands from 16 Hz to 16 kHz
Third octave bands from 16 Hz to 20 kHz
Third octave bands from 14 Hz to 18 kHz
Optional FFT from 7 Hz to 22 kHz with variable resolutions from 1.5 Hz to 100 Hz
Average spectrum ( AVR) mode, multi-spectrum analysis ( MLT) , maximum spectrum ( MAX) , and minimum spectrum ( MIN)
Audibility Real-time comparison of third octave band spectrum with equal loudness curves according to ISO 266: 2003
Statistical Analysis Probability distribution and percentile level calculation from L1 to L99
Parameter: LFp, Leq, Lpk, A, C or Z weighted ( only C or Z for Lpk)
Sampling frequency: 8 samples/ second
Classification: 0.5 dB classes
Event Analysis Calculation of 5 freely programmable event parameters
Calculation of octave and third octave band average spectra
Calculation of statistical levels from L1 to L99
Event identification trigger with programmable threshold and duration filter
External and manual trigger
Reverberation Time ( opt.) Reverberation time measurement by sound source interruption and impulse response integrated
Profile Data Logging 1 profile with programmable sampling from 1/ 8 s to 1 hour and 5 profiles with 2 samples/ second
Spectrum Data Logging Programmable sampling from 0.5s to 1 hour ( MLT, MAX, or MIN modes)
Display Backlit graphic display 128x64
5 numerical parameters Profile of a selectable parameter with sampling time from 1/ 8 s to 1 hour
Octave band spectrum from 16 Hz to 16 kHz
Third octave band spectrum from 16 Hz to 20 kHz or 14 Hz to 18 kHz
Graph of sound level probability distribution
Graph of percentile levels from L1 to L99
Optional narrow band spectrum analysis ( FFT) from 7Hz to 22 kHz
Memory Internal, equal to 8 MB ( 1 profile for 72 hours or over 46 recording days of 5 parameters + spectra per minute)
External, via the HD2110MC memory card interface, using MMC or SD cards up to 2 GB
Input/ Output RS232 serial and USB interfaces
AC input and output ( LINE)
S/ PDIF digital audio input and output
External event identification trigger
PC Programs Noise Studio ( supplied with the instrument) : PC interface for data download, set up and instrument management. Licensed software modules to be enabled by hardware key.
â Worker protectionâ module. Analysis of noise in the workplace in accordance with Decree 81 of 2008 and the UNI 9432-2008.
â Acoustic pollutionâ module. Analysis of environmental noise according to the Law 447/ 1995 and Decree of 16/ 03/ 1998. Analysis of
the noise climate and assessment of noise from road, rail and airport according to the law. Some program functions require option 1 â Third octavesâ .
â Acoustic Insulationâ module. Calculations of acoustic and architectural evaluation of passive acoustic requirements of buildings according to DPCM of 5/ 12/ 1997. Requires option 4 â Reverberation timeâ .
â Monitorâ module. Acquisition in real time on PC. Synchronized audio recording. Remote monitoring and data capture. Connection via Modem.
The program allows programming of measurements and calibrations with timer and audio recording with programmable event triggers.
Operating conditions Working temperature 10÷ 50° C, 25÷ 90% RH ( without condensation) , 65÷ 108kPa. Protection degree: IP64
Power supply 4 alkaline or rechargeable NiMH type AA batteries or external 9÷ 12Vdc 300mA
Dimensions and weight 445x100x50 mm equipped with preamplifier, 740 g ( with batteries)