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Noise Monitoring

Envirotech Instruments is a prominent name in the manufacturing, trading and distribution of a wide array of Real Time Noise Monitoring Terminals. Characterized by features including a weather-proof cabinet, a GPRS modem and a special outdoor microphone, the offered range of terminals is appreciated for its optimum functionality.

Sound Level Meter

Sound Level Meter
  • Sound Level Meter
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SLM 100 Sound Level Meter is a preferred device for our valuable customers. It is used extensively by the pollution control board, prominent research institutions, leading industrial houses and environment consultants for their air pollution control needs. In addition to this, it is easy to operate and is light in weight.

Special Features:

  • Compliant with IEC61672 and ANSI S 1.4 (Class 1) standards
  • Simultaneous measurement of A, C, Z frequency weightings
  • Simultaneous measurement with Fast, Slow, and Impulse time weightings. Can also measure Peak
  • Displays L Leq, Ln, Lmax, Lmin Peak, RMS, SD
  • Programmable Integration time from 1s to 24 hrs
  • 4 GB memory and RS 232 PC interface

Specifications:
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 instruments

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Additional Information:

  • Item Code: SLM100
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Real Time Noise Monitoring Terminal

Real Time Noise Monitoring Terminal
  • Real Time Noise Monitoring Terminal
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Real Time Noise Monitoring Terminal is suitable for outdoor applications. It can be used in extreme weather conditions. This instrument consists of a weather proof cabinet, special outdoor microphone, data logger, a GPRS modem and a battery. Moreover, it is tested on several parameters by our efficient quality control department.

Specifications:
Standards:IEC 61672, Class 1
Frequency weighting:A, C
Time weighting:Fast, Slow, Impulse
Range:20-140 dBA
Resolution:0.1 dBA
Communication:RS 232 / USB
Telemetry:GPRS / EDGE / 3G
Measured data:SPL, Leq, Lmax, Lmin, Lpeak, Ln and other parameters
Programmability:All functions programmable from remote access or direct from the instrument
Microphone:Permanent / Semi permanent outdoor microphone with weather protection kit
Enclosure:Weather proof enclosure with IP65 protection. Anti intrusion alarm optional
Power source:AC mains / Battery / Solar power
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Mini Sound Level Meters

Mini Sound Level Meters
  • Mini Sound Level Meters
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SLM 109 is a Class 1 integrating sound level meter. It complies with the IEC61672 as well as ANSI S 1.4 standards. The instrument features an industrially designed housing and offers a high level of comfort and style.

The SLM 109 has a dynamic range of 100 dB and does not require range selection. It can measure three parameters simultaneously with the A, C, and Z frequency weightings and with Fast, Slow, and Impulse time weightings. The integration time for Leq, Ln and other integral sound quantities can be programmed from 1s to 24 hours.

The SLM 109 is the ideal choice for performing many kinds of noise measurement tasks, for example, in environmental noise, vehicle noise, industrial application, etc – specially where Class 1 accuracy is required.

Special Features:

  • Compliant with IEC61672 and ANSI S 1.4 (Class 1) standards
  • Simultaneous measurement of A, C, Z frequency weightings
  • Simultaneous measurement with Fast, Slow, and Impulse time weightings. Can also measure Peak Sound Pressure Level
  • Displays Lp, Leq, Ln, Lmax, Lmin, Peak, RMS, SD
  • Programmable Integration time from 1s to 24 hrs
  • 4 GB memory on external SD card and RS 232 PC interface
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Additional Information:

  • Item Code: SLM109
Yes! I am Interested
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Chetan Garg (Manager)
A-271, Okhla Industrial Area, Phase-1
New Delhi- 110020, Delhi, India


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