Scarlet Tech Ltd.

Scarlet Tech Ltd.

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- Model ST-130 - Noise Dosimeter

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The Scarlet ST-130 Noise Dosimeter is the ideal tool to carry out occupational and industrial hygiene noise measurements and provide a unique solution for these applications. ST-130 is designed to meet the standard dose measurement of OHSA, IEC and ISO regulations. To measure long-term noise exposure, the ST-130 comes with small, lightweight, cable-free designs and can be worn on the shoulder for minimal inconvenience. Scarlet ST-130/S series offer the low cost but hight performance noise dosimeter for all applications. To know more about our range of compact and convenient noise measurement products, please get in touch today.

  • Perform OSHA and IEC noise accumulation surveys
  • 6 built-in standard dose measurement setups: OSHA/ MSHA/DOD/ACGIH/ISO85/ISO90
  • Data logger up to 10,00,000 readings
  • Adjustable criterion level, exchange rate & threshold
  • Sampling times between 1 sec to 2 hr
  • Stores up to 10,000 dose meter survey results
  • Dose Meter Mode: record time stamp, %Dose, TWA8, LEP, 8h, Leq, SEL, LN%, SPLmax, SPLmin, PeakMAX
  • Sound Level Meter mode: Leq, PeakMAX & SEL
  • USB interface. Support Windows XP / Vista / 7 / 8

  • Evaluation of environmental noise and logging
  • Measurements of occupational noise at workplaces
  • Compliance with noise at Work Regulations and occupational noise exposure guidelines
  • Monitoring and recording of long term noise exposure
  • Noise exposure measurements in hazardous environments such as oil fields, petrochemical plants and underground mines
  • Measurement of noise exposure in the entertainment and music industries

Item: Description

  • Measurement items (Noise Dosimeter): Does%, Lxyp, Lxmax, Lxmin, Lxeq, SEL( LAE ), PeakMAX, LAVG, TWA, LEP, LN%
  • Measurement items (sound level meter): Lxyp, Lxmax, Lxmin, Lxeq, SEL( LAE ), PeakMAX
  • Display range: 30...90 dB (L), 50...110 dB (M), 70...140 dB (H)
  • Primary RMS range @ 1 kHz: 41...86 dB (L), 55...106 dB (M), 75...125 dB (H)
  • Max Cpeak measurement: 90...143 dB
  • Dynamics range: 60 dB
  • Accuracy: +/- 1.4 dB @ 94 dB / 1 kHz
  • Microphone (ST-130S): 1/2” pre-polarized condenser microphone build in preamplifier: 1V/Pa@250HZ, frequency range: 20 Hz~12.5 kHz, Thermal noise: < 25 dB(A)
  • Display: Single LCD MAX reading 999999
  • Display refresh rate: 1 Hz
  • Internal memory: Data loger data: 10,000 NDM surveys; 1,000,000 SLM readings
  • Time weighting: Fast / Slow / Impulse
  • Frequency weighting: A /C /Z
  • Frequency range: 20 Hz...8 kHz
  • Starting time: Less than 10 sec
  • Battery life ( ST-130S ): 20 hours ( 9V Alkaline battery x 1 )
  • Battery life ( ST-130 ): 24 hours ( 9V Alkaline battery x 1 )
  • Dimensions: 107 (L) x 65 (W) x 33 (H) mm

  • IEC 61252-1993
  • IEC 61672-1-2003
  • ANSI S1, 25-1992
  • ANSI S1, 4-1983
  • ANSI S1, 43-1997

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