ST-105/ST-105S/ST-105D/ST-105L
Class 1 Integrating Sound Analyzer Level Meter

Class 1 comply with IEC – 61672-1: 2013 Class 1
IEC – 61260-1995 Class 1

APPLICATION

The Sound Analyzer Meter is a hand held real-time analyzer that can perform integrated measurement and statistic analysis on the noise (refer to paragraph 4), or other electrical signal including their frequency spectrum and amplitude 1/1 OTC and 1/3 OTC (refer to paragraph 5) value through the digital signal processing technology.
This analyzer can be widely used in the various fields such as environmental protection, labor hygiene, research and teaching, industrial enterprise, measuring and testing etc. It can perform the environmental noise measurement, machine’s noise analysis, sound power level measurement, building acoustics measurement.

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,LAFminSD,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

SPECIFICATIONS

  • Dimensions:285x90x39mm(length x width x height).
  • Weight: Approximately 500 grams.
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)
Parameters And Performance of Statistic Analysis
MODE
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
Lfmeq1s,LFmeqT,Lxyp,
Lxyi,Lxeq1s,LxeqT,
LAE,E,CPeak
Lfmeq1s,LFmeqT,
Lxyp,Lxyi,Lxeq1s,
LxeqT,LAE,
E,CPeak
Applications
 Environmental noise   measurement   machine’s noise analyses   any noise spectrum   analyzer
 Environmental   noise   measurement
Machine’s noise analysis Noise spectrum analyzer
Display
LCD with back light (240×160 dots)
Statistic Analysis
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24H measurement
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Integrating
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1/1 OCT
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1/3 OCT
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•
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128
records storage
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12288
records storage
•
Auto
storage setup
•
Auto
start/ Auto measuring
•
EC 61672-1:2013 class 1
ANSI S1.4 Type1
CNS NO.7129 Type 1
JJG-188:2002 class 1
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•
•
•
IEC 61260-1995 class 1
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Display refresh
10Hz for value;1Hz for graph
Microphone
½pre-polarized condenser microphone build in preamplifier,sensitivity
:50mV/Pa,frequency range:10Hz~20KHz,heat noise:<16dB (A)
Measurement range
25dB~140dB (A) / 30dB~140dB (C) / 35dB~140dB (Z)
Dynamic range
>90dB
Instrument background noise
<13dB (A) ,15dB (C) ,25dB (Z)
Maximum peakC soundlevel
Measurement
50dB~143dB
Time Weighting
Fast,Slow,Impulse,PeakC+,PeakC-
Frequency Weighting
A/C/Z
Integrating Time
1 second~24hour,set in a given range or randomly
Frequency Rrange
10Hz~20KHz
Range Gain
-10dB,0dB,10dB,20dB,30dB,40dB
Range Error
≦0.1dB
Self-generated Noise Voltage
<4µV (1Hz~23KHz)
Measuring Voltage Range
15µV~10Vrms
Sampling Frequency
20.8µs (48KHz)
Analog output
AC
Starting Time
<10 second
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
Power
LR6 1.5Vx4Alkaline batteries
External power
AC 100~240V to DC 5V

ACCESSORIES

  • User’s manual
  • MINI USB cable.
  • SWITCHING ADAPTOR: 100V ~ 240V AC to DC 5V/1A.
  • 3.5Øplug to MINI USB connector.
  • Carrying case.
  • 4 batteries 1.5 V – LR6 – AA – AM3 – MN 1500.
  • 60mm diameter windscreen.
  • Flash disk (Transcend Brand).


Option Accessories

  • Mini printer and printer cable.
  • RS-232 cable.
  • 5M microphone cable.
  • 10M long microphone cable.
  • 20M long microphone cable.
  • ST-120 sound level calibrator.

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