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SLM 100

The SLM100 Sound Level Meter has been designed for ease in field operation. All features considered essential for field surveys have been included. The SLM100 is a “Type 2” Integrating Sound Level Meter designed to meet the requirements of IS 15575 (Part1) 2005. The instrument has a frequency weighting of “A” type and allows the user to select Slow or Fast mode of measurement. A built-in Data Logger can record all the important Sound Level parameters in Non-Volatile Flash memory for 24 hours making detailed field data collection very simple. Each record consists of the LEQ, MIN and MAX Sound Pressure Level and Sound Exposure Level (SEL) observed during the recording interval. A built-in Real Time Clock maintains a Date and Time stamp in the recorded data.

Special Features:

  • Simple to operate instrument gives readings of Sound Pressure Level (SPL), LEQ and SEL on a digital display
  • Frequency Weighting “A type” and Time Weighting for SLOW and FAST mode provided as per requirements of BIS 15575 (Part1) 2005
  • Data recording facility with multiple file storage
  • Sufficient memory to record 24 hour data at 1 minute intervals – capable for remote monitoring
  • Data transfer to PC via RS 232 port for detailed Analysis and report preparation
  • Windows based software to analyze data and prepare reports
  • 16 Character by 2 line digital display allows the instrument to give suitable prompts
  • Accuracy / Class: Type II designed for field use Conforming to BIS 15575 (Part1) 2005
  • Measurement range: 34 to 134 dBA in three 50 dB overlapping ranges
  • Error indication: Over Range, Under Range and Low Battery
  • Frequency Weighting: “A” type as per IS 15575 (Part1) 2005
  • Time Weighting: SLOW and FAST as per IS 15575 (Part1) 2005
  • Measurements: Sound Pressure Level (SPL), MIN SPL, MAX SPL, LEQ, Sound Exposure Level (SEL) and run time continuously available on the display by selecting appropriate display screen
  • Display: LCD 16 Character, 2 Line Display with 0.1 DB resolution
  • Operation Modes:

    Continuous and Recording

     

    In Continuous Mode SLM100 displays the current SPL level, LEQ, SEL etc. for the duration of current session of operation.

     

    In Recording Mode, current values of above parameters are displayed on the screen and LEQ, MIN SPL, MAX SPL, and SEL values integrated over a minute are recorded in the built-in data logger. The SLM100 allows the user to record multiple files making it possible to make a detailed survey at several locations before downloading data to a PC for Analysis

  • Memory Capacity: In built data logger can store more than 24 hours data (at 1 minute intervals) in non-volatile Flash Memory
  • Data Download: In-built RS232 Serial Port for direct interface to a PC
  • Software: Windows compatible Software that allows data download to a PC and makes the data available in an Excel Spreadsheet for analysis and report preparation
  • Battery: A re-chargeable NiMH battery pack allows operation for 10 hours or more. A built-in battery status facility allows the user to check useable battery hours and automatically prompts the user when the battery is running low. To prevent battery damage the instrument will automatically shut-down when the battery voltage drops to a pre-set level
  • Warranty: One year
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