Features
- Statistic analysis
- 24hr measurement
- Integral measurement
- Real time analyzer in 1/1 and 1/3 octave band
- It simultaneously measures A,C,Z and Fast, Slow, Impulse
- Data logging function (ST-105D)
- Auto start/Auto measuring/Auto end (ST-105D)
- USB and RS-232 interface
- Real time clock with calendar
- Sampling frequency :20.8µs (48KHz)
- Wide frequency range:10Hz~20KHz
- Wide measurement range:25dB~140dB
- Wide dynamic range:90dB
- Fast,Slow,Impulse,PeakC+,PeakC-
- Measurement function:Lxyp,LAFmax,LAF5,LAF10,LAF10,LAF50,LAF90,LAF95,LAFmin SD,LAeq1s,LAeqT,LAE,LAfeqT,LD,LN,LDN,Lxyi,Lxeq1s,LxeqT,LAE,E,Cpeak+,Cpeak-, LAFmax,LAFmin,LAFeqT,LASeqT,LAIeqT,Lfmeq1s,LfmeqT,Lxyp,Lxyi,Lxeq1s,LxeqT,LAE,E,Cpeak
Analysis frequency range
1/1 Octave (11 bands) | 16Hz,31.5Hz,63Hz,125Hz,250Hz,
500Hz,1KHz, 2KHz, 4KHz, |
1/3 Octave (34 bands) | 10Hz (ST-105D),12.5Hz, 16Hz,20Hz,25Hz,
31.5Hz,40Hz,50Hz,63Hz,80Hz,100Hz,125Hz, 160Hz,200KHz,250Hz,315Hz,400Hz,500Hz, 630Hz,800Hz,1KHz,1.25KHz,1.6KHz,2KHz, 2.5KHz,3.15KHz,4KHz,5KHz,6.3KHz,8KHz, 10KHz,12.5KHz,16KHz,20KHz (ST-105D) |
ST-105 ST-105D ST-105L:
– Parameters and performance of octave and 1/3 octave
– Function: noise’s real-time octave and 1/3 octave spectral analysis and integrating measurement
– Frequency weighting: parallel (simultaneous)A,C,Z. The spectral analysis interface is composed by the frequency spectrum. The total analysis interface is realized by digital filtering.
– Filter type: parallel (real-time) octave and 1/3 octave band filter, G=2,digital filter. The noise exposure (E)’s measuring range is 0-65.535 Pa2h.
Specifications
Model |
ST-105D |
ST-105 |
ST-105S |
ST-105L |
Measurement Parameter |
Lxyp,LAFp,LAFmax,LAFmin,LAF5, LAF10, LAF50, LAF90, LAF95,SD,LAeq1s, LAeqT,LAE,LAfeqT,LD,LN,LDn, Lxyi,Lxeq1s,LxeqT,LAE,E,Cpeak+,Cpeak-,LAFmax |
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Lfmeq1s,LFmeqT,Lxyp,Lxyi,Lxeq1s,LxeqT, LAE,E,CPeak |
Lfmeq1s,LFmeqT,Lxyp,Lxyi, Lxeq1s,LxeqT,LAE,E,CPeak |
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Applications |
Environmental noise measurement machine’s noise analyses any noise spectrum analyzer |
Environmental noise measurement |
Machine’s noise analysis Noise spectrum analyzer |
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Display |
LCD with back light (240×160 dots) |
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Statistic analysis |
V |
V |
V |
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24h measurement |
V |
V |
V |
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Integrating |
V |
V |
V |
V |
1/1 OCT |
V |
V |
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1/3 OCT |
V |
V |
V |
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128 records storage |
V |
V |
V |
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12288 records storage |
V |
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Auto storage setup |
V |
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Auto start/ Auto measuring |
V |
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IEC 61672-1:2013 class 1 ANSI S1.4 Type1 CNS NO.7129 Type 1 JJG-188:2002 class 1 |
V |
V |
V |
V |
IEC 61260-1995 class 1 |
V |
V |
V |
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Display refresh |
10Hz for value;1Hz for graph |
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Microphone |
1/2 pre-polarized condenser microphone build in preamplifier,sensitivity |
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Measurement range |
25dB~140dB (A) 30dB~140dB (C) 35dB~140dB (Z) |
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Dynamic range |
>90dB |
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Instrument background noise |
<13Db (A) ,15dB (C) ,25dB (Z) |
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Maximum peakC soundlevel measurement |
50dB~143dB |
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Time weighting |
Fast,Slow,Impulse,PeakC+,PeakC- |
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Frequency weighting |
A/C/Z |
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Integrating time |
1 second~24hour,set in a given range or randomly |
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Frequency range |
10Hz~20KHz |
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Range gain |
-10dB,0dB,10dB,20dB,30dB,40dB |
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Range error |
≦0.1dB |
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Self-generated noise voltage |
<4µV (1Hz~23KHz) |
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Measuring voltage range |
15µV~10Vrms |
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Sampling frequency |
20.8µs (48KHz) |
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Analog output |
AC |
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Starting time |
<10 second |
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Interface |
USB interface, mini B type. Complying with USB 1.1, compatible with USB 2.0, which can transfer the measuring result to PC, and transfer the data to the flash disk up to 8G |
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Power |
LR6 1.5Vx4Alkaline batteries |
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External power |
AC 100~240V to DC 5V |
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Dimension |
285x90x39mm (LxWxH) |
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Weight |
500g (including batteries);2.5kgs (including package) |