Details

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ST-109R  Class 1 Integrating Sound Level Meter

 
This Integrating Sound Level Meter (ISLM) is IEC61672-1:2002 Class 1 compliant.

 

Application

• Evaluation of environmental noise
• Measurements of noise at workplaces
• Assessment of product noise 

 

Features

• Readings display: two rows with maximum value at 1999.
• Lower power detection, backlight function, data lock function (HOLD)
• Auto power On/Off function 
• Overload display: "OVER" or "UNDER"
• Power consumption at standby mode: 10uW
• Power consumption at operation mode: 250mW

Specifications

• Dimensions:285x90x39mm(length x width x height).
• Weight: Approximately 500 grams.

Electrical Specifications

Display Refresh Rate	One time per second
Major Applicable Standards	IEC 61672-1：2002 Class1  IEC60651:1979 TYPE 1  IEC60804:2000 TYPE 1
Microphone	High sensitivity,  ½"pre-polarized capacitor microphone 50   mV/Pa
Measurement Items	Lxyp,Lxmax,Lxmin,Lxeq,LAE,Lcpeak
Measurement Range	30dB ~ 130dB (A)  35dB ~ 130dB (C)  40dB ~ 130dB (Z
Dynamic range	60 dB
Measurement shift	30dB ~ 90dB (L)  50dB ~ 110dB (M)  70dB ~ 130dB (H)
Integrate Time Setup	Manual, 10s, 1m, 5m, 10m , 30m,  1h, 8h, 16h, 24h
Micro SD Card	The max support capacity of  micro SD card is 32GB；  37,000 data about story space 300KB
Peak value  measurement range	70~133 dBC
Time Weighting	Fast, Slow, Impulse, Peak
Frequency Weighting	A/C/Z
Frequency Range	20Hz~16KHz
DC Output	10mV/1dB
AC Output	1Vrms(±10%)/130dB each range
Starting Time	＜10 Second
Thermal noise	≦28dBA