ST-105 Class1 디지털소음계Class1 Integrating Sound Level

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

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 (240x160 dots)

Statistic analysis

V

V

V

24h measurement

V

V

V

Integrating

V

V

V

V

1/1 OCT

V

V

1/3 OCT

V

V

V

128 records storage

V

V

V

12288 records storage

V

Auto storage setup

V

Auto start/ Auto measuring

V

IEC 61672-1:2002 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

Display refresh

10Hz for value;1Hz for graph

Microphone

1/2 pre-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 range

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

Dimension

285x90x39mm (LxWxH)

Weight

500g (including batteries);2.5kgs (including package)