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| Uses & Features | Features - Pocket Real-Time Noise Signal Analyzer - Real-time 1/1 and 1/3 Octave Band Analysis is available - FFT analysis on noise or vibration - Lower background noise - 90 dB (ACE6291) or 100 dB (ACE6228) Level Linearity Range - Different software could be selected - Auto-start and auto-end
Uses - Precision acoustics measurements - Real-time frequency analysis in 1/1 and 1/3 octave digital filters - Environmental noise measurement and 24 hour monitoring - Reverberation time measurements - Airport Noise Monitoring and data collect
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| Technical Specification |
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ACE6291 Real Time Signal Analyzer
Sound Level MeterFeatures
- Pocket Real-Time Noise Signal Analyzer
- Real-time 1/1 and 1/3 Octave Band Analysis is available
- FFT analysis on noise or vibration
- Lower background noise
- 90 dB (ACE6291) or 100 dB (ACE6228) Level Linearity Range
- Different software could be selected
- Auto-start and auto-end
Uses
- Precision acoustics measurements
- Real-time frequency analysis in 1/1 and 1/3 octave digital filters
- Environmental noise measurement and 24 hour monitoring
- Reverberation time measurements
- Airport Noise Monitoring and data collect
| Items | ACE6291 |
| Fulfils Standards | IEC 61672 Class 1 and IEC 61260 Class 1 |
| Microphone | 1/2" Prepolarized Condenser Mic. Model AWA14423 (sensitivity : 50 mV/Pa) |
| Preamplifier | AWA14601 |
| Frequency Range 10 Hz | 10 Hz ~ 16 kHz |
| Range Gain |
-10 dB, 0 dB, 10 dB, 20 dB, 30 dB, 40 dB Range Error: ≤ 0.1 dB |
| Self-Generated Noise | <18 dB (A), 23 dB (C), 28 dB (Z) |
| Meas. Upper Range | 140 dB |
| Peak C Sound Level Measuring Range | 50 dB ~ 143 dB |
| Frequency Weighting | Parallel (Simultaneous) A, C, Z. Realized by Digital Filtering |
| Time Weighting | Parallel (Simultaneous) F, S, I, Peak |
| A/D Bits | 24 bits |
| Level Linearity Range | > 100 dB |
| Sampling Frequency | > 90 dB |
| Display | 240 x 160 graphic LCD, with EL back-lit |
| Display Refresh | 1 Hz for value; 10 Hz for graph |
| Main Parameters of Integrating Measurement |
Lxyp, Lxyi, Lxeq,1s, Lxeq,T, LAE, E, Cpeak, LAFmax, LAFmin, LAFeqT, LASeqT, LAIeqT. Note: X is A, C, Z and Y is F, S, I. |
| Main Parameters of Airport Noise Measurement | LEPN,Td,Lmax |
| Display Resolution | 0.1.dB |
| Real-time Analysis Speed | Approx. 47 times / s (It can simultaneously complete all center frequencies and A, C, Z weighting.). |
| Statistical Analysis Function |
Statistical Analysis Software (S6228-00101) The statistical analysis menu : LAFp, LAFmax,LAF5, LAF10, LAF50, LAF90, LAF95, LAFmin, SD, LAeq1 s, LAeq, T, LAE, LAFeqT. 24h measures menu: And Ld, Ln, Ldn. |
| Real-Time Spectrum Analysis |
Fulfils Standards : IEC 61260 Class 1 Filter Type : Digital band-pass filter Measuring Parameters : Lfmi, Lfmeq,1s, Lfmeq,T, Lxyp, Lxyi, Lxeq,1s, Lxeq,T, LAE, E, Cpeak, Tm. Note: fm is center frequency; X is frequency weighting A, C, Z. Y is time weighting F, S, I |
| Real-Time 1/1 OCT Spectrum Analysis | 1/1 OCT Spectrum Analysis Software (S6228-00202) Filters Center Frequency : 16 Hz ~ 16 kHz |
| Real-Time 1/3 OCT Spectrum Analysis | 1/3 OCT Spectrum Analysis Software (S6228-00303) Filters Center Frequency : 10 Hz ~ 20 kHz |
| Real-Time 1/3 OCT Spectrum Analysis |
FFT analysis software for noise (S6291 -00404) 1) Line Number : 200 lines on the display. 2) Sampling Frequency : 48 kHz, 24 kHz, 12 kHz, 6 kHz, 3 kHz, 1.5 kHz. 3) Upper Limit of Analysis Frequency: 18.75 kHz, 9375 Hz, 4687 Hz, 2344 Hz, 1172 Hz, 586 Hz. 4) Bandwidth of each line : 93.75 Hz, 46.875 Hz, 23.438 Hz, 11.74 Hz, 5.8594Hz, 2.9297 Hz 5) Average Method : index and linearity 6) Measuring Parameters : Lxyp, Lxyi, Lxeq,1s, Lxeq,T, LAE, E, Cpeak, Tm in every line |
| Reverberation Time Measurement Function (Optional) |
Reverberation Time Measurement Software (S6291 - 00508) 2) Fulfils Standard : ISO 3382 3) Measuring Parameters : T20, T30, EDT 4) Measuring Range : 0.20 s to 20.00 s 5) Wave Record Time : 10 s or 20 s 6) Bandwidth of digital filters : 1/1 OCT or 1/3 OCT 7) Center Frequency Ranges : 63 Hz ~ 16 kHz for Oct., 40 Hz ~ 16 kHz for 1/3 Oct 8) Date store : Max 12288 groups reverberation time, also translate to U disc |
| Data Storage |
64M bits Flash, instantaneous data, 1 second integral results and integral measuring result (maximum 12288 groups). Also can be stored in Flash disk or transferred to the Flash disk through USB interface |
| Integral Time | Manual, 10 s, 1 min, 5 min, 10 min, 15 min, 20 min, 30 min, 1h, 4h, 8h, 24h or 1 min ~ 59 min |
| Can print analytical results in the mini-print, can also print the contents showed on LCD screen | |
| Data Recall | Recalled any data |
| Intelligent Delete | Burst event may be deleted scientifically |
| Internal Clock | Error less than 1 min / month |
| Output Interface |
Stereo Connector AC Signal Output RS 232 interface to the mini-printer, or connected to PC |
| Power Supply | 6 x LR6 alkaline battery or rechargeable batteries, which can work for over 12 hours continuously. 9V external power supply is also acceptable. |
| Dimensions | 310(H) × 90(W) × 38(D) mm |
| Weight | 0.5 kg (include batteries) |
| Electromagnetic Compatibility | Type X |
| Working Temperature | -10 0C ~ 50 0C |
| Storing Temperature | -20 0C ~ 70 0C |
| Relative Humidity | 25% ~ 90 % |
| Atmospheric Pressure | 65 kPa ~ 108 kPa |