HD 2110 Integrating Sound Level Meter â Portable Analyzer, Merk : DeltaOhm[2 Jul. 2009, 21:27:55]
Keterangan
Technical characteristics
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 :
ü MK221 condenser microphone, polarized (200V), for free eld, high stability, type WS2F according to IEC 61094-4
ü MK223 condenser microphone with coated membrane, polarized (200V), for free eld, high stability, type WS2F according to IEC 61094-4
(combined with the HDWME950 weatherproof microphone unit)
ü MK231 condenser microphone, polarized (200V), for diffuse eld, 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 lters in real time complying with IEC61260 class 0 speci cations.
ü Octave bands from 16 Hz to 16 kHz
ü Third octave bands from 16 Hz to 20 kHz
ü Third octave bands from 14 Hz to 18 kHz
ü 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
Classication: 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 identication trigger with programmable threshold and duration lter
External and manual trigger
Reverberation Time (opt.) : Reverberation time measurement by sound source interruption and impulse response integrated
Prole Data Logging : 1 prole with programmable sampling from 1/8 s to 1 hour and 5 proles 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
ü 5 numerical parameters
ü Prole of a selectable parameter with sampling time from 1/8 s to 1 hour
ü Octave band spectrum from 16 Hz to 16 kHz
ü Third octave band spectrum from 16 Hz to 20 kHz or 14 Hz to 18 kHz
ü Graph of sound level probability distribution
ü Graph of percentile levels from L1 to L99
ü Optional narrow band spectrum
analysis (FFT) from 7Hz to 22 kHz
Memory :
Internal, equal to 8 MB (1 prole 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 identi cation trigger
PC Programs :
DeltaLog5: PC interface for data download, setup and sound level meter management (supplied with the sound level meter)
DL5 Environment: For analyses according to the Decree of 16.03.98
DL5 Monitor: For real-time acquisition in the PC mass memory, scheduler, audio recording
DL5 Building: For room acoustics evaluation in compliance with D.P.C.M. of 05.12.97 (it requires the âReverberation Timeâ option)
DL5 Noise Studio: modular program analysis
âWorker protectionâ: Analysis module according to the Decree 195/2006
âRailway Traf câ: Analysis module of train noise according to the Decree of 16/03/1998
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 preampli er, 740 g (with batteries)
