Spark® Family of Noise Dosimeters
Rugged, Reliable and Proven Dosimeters
Spark® series dosimeters are compact, affordable and tamper-proof personal Noise Dosimeter that measures the following to applicable IEC and ANSI standards:
  • Noise Exposure: Multiple Dose; Projected Dose; Time Weighted Average; (all with 4 user selectable combinations of Exchange Rate, Threshold, Criterion Level and Criterion Time); Sound Exposure Level
  • Sound Levels:; Leq; Lmax; Lmin; Lpeak/Luwpk, SEL and more
  • Time and number of events above Ceiling Level (115 dB) and Peak Level (140dB)
All Spark® Series models offer additional features including:
  • Intrinsic Safety approvals: Class I, Div I, Group C&D, Class II Div I Group E,F,G, Class III, Div. I Group, and MSHA Permissible (Conforms to UL Std. 913, Certified to CAN/CSA Std. C22.2 No.157)
    ATEX Approved version available
  • Up to 100 hour battery capacity (except 705 and 705+)
  • Time history and Overall data logging – downloads to PC using Blaze® Software (except 704)
  • Data is stored in non-volatile memory – never loses data due to depleted battery
  • Selectable Frequency weightings and Detector settings
  • Measurement range 40dB to 143dB (RMS) 80dB to 146dB (Peak)
  • Measure to the requirements of ANSI S1.4-1983, S1.25-1991, IEC 60651-1 1979, 60804-1985, 61252-am1-2000
Model 703+ Model 703+
Spark® 703+ has all the standard features PLUS the ability to be controlled, interrogated and downloaded by the 706RC Dosimeter Remote Controller. This gives you the ultimate combination of tamper-proof wearability and affordability with on-demand display and control functionality. Standing up to three feet from the worker, you can instantly connect the 706RC using infrared remote capability to check results, view data, even stop and start a test!Learn More >>


Model 705+
Model 705+

Arguably the “World’s Toughest” dosimeter! Spark® 705+ has a housing capable of being run over by a full-sized (6,000lb) SUV – its sealed aluminum extruded case offers the ultimate in tamper-proof survivability – in any environment! Similar in operation to the Model 703+, the 705+ is a cost-effective data-logging personal dosimeter that thrives when the going gets tough!

Spark® 705+ also has the ability to be controlled, interrogated and downloaded by the 706RC Dosimeter / Remote Controller. This gives you the ultimate combination of tamper-proof wearability and affordability with on-demand display and control functionality. Standing up to three feet from the worker, you can instantly connect the 706RC using infrared remote capability to check results, view data, even stop and start a test!  Learn More >>



Model 706RC

Model 706RC
Spark® 706RC is the fully-featured self-contained dosimeter that provides ease-of-use, sleek ergonomic design and full on-board data logging, along with a backlit LCD display and lockable keypad. The 706RC delivers over 100 hours of continuous exposure monitoring on two standard AA Alkaline batteries and can store over 30 days of data in its huge 4MB memory. Standing up to three feet from the worker, you can instantly connect to another 706RC using infrared remote capability to check results, view data, even stop and start a test! Add an optional MPR002 mast-style microphone, and you have a simple to use Type 2 datalogging SLM!

The Spark® 706RC also provides the ability to link up with the other Spark models for remote data viewing, dosimeter control, status updates and upload of stored test results. The 706RC not only offers a safe, comfortable distance between the user and the worker being monitored, it can store data from up to fifty other Spark series dosimeters for transport of data and download to a remote PC. Learn More >>

Human Vibration Meter

Model HVM100

Applications
  • Product Compliance Testing
  • Human Vibration
  • Whole Body Vibration
  • Hand Tool Vibration
  • Vibration Severity Measurement
  • Hand-arm Vibration
  • Tooling Vibration
  • Worker Exposures
  • Industrial Hygiene
  • Assess Risk of Injury
Features
  • Frequency weightings and measurements for Hand-Arm and Whole Body Vibration
  • Conforms to ISO Standards 2631 and 5349
  • Simultaneous 3-channel Measurements: X, Y and Z axes, plus Sum (S)
  • Lightweight and Portable - operates from two AA batteries or AC power supply
  • Records up to 200 hours of measurement time history
  • Programmable AC or DC Signal output
  • USB and Serial Interface to PC (115.2 kBaud)


Human Vibration Exposure

The Human Vibration Monitor 100 is a hand-held instrument for measuring human exposure to vibration, performing relevant calculations and providing overall metrics on its LCD display. Detailed vibration levels are easily stored in its built-in data logger, which can hold up to 100 separate time-history test files including all required metrics. This information can then be downloaded to a PC for analysis and archiving.

Product Compliance Testing

Measuring all three axes of vibration simultaneously greatly simplifies the setup of a test and enhances the repeatability and correlation of the vibration data. From the three channels of measured data, the HVM100 automatically calculates the important vector sum information and presents it as a fourth set of data values. For compliance with the latest measurement standards, the HVM100 employs digital filters for each channel that can be enabled as needed, and will never be obsolete - should standards change, the filters can upgraded - electronically!

Measuring Human Vibration

Human vibration in the workplace can be created by the operation of tools, plantmachinery, and various vehicles. Different parts of the human body have resonances and, as you would expect, vibration at a resonant frequency is especially disturbing. As the transmissibility ofvibration to an operator increases in amplitude or duration, it can cause annoyance, fatigue, and at higher exposures, a risk of injury.

Human vibration in the workplace is categorized in two ways:

  1. Whole-body vibration (WBV) where transmission is from the source through the feet or the buttock and into the body.
  2. Hand-arm vibration (HAV) where transmission is through the hands and arms when using vibrating tools.

The Larson Davis Human Vibration Meter (HVM100) is well suited for measuring whole-body and hand-arm vibration. It will analyze the data in accordance with the most current ISO requirements to calculate exposure metrics. The HVM100 is used with a miniature accelerometer that can be mounted using various handle adapters or a seatpad accelerometer. Using the Larson Davis Blaze® software, the operator can gather, manage, graph, and report the vibration exposure data.




Model 831:
Class 1 Environmental Noise and Building Acoustics Analyzer
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SoundTrack LxT®:
Class 1 Sound Level Meter Designed for Professionals with available logging and 1/1 and 1/3 octave analysis
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SoundExpertTM LxT:
Class 1 Sound Level Meter Designed for Professionals
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SoundTrack LxT® N/Forcer:
Class 1 Sound Level Meter For Noise Ordinance Compliance
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SoundTrack LXT1-QPR:
Class 1 Sound Level Meter for Firearms Acoustic Testing
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Model 824:
Class 1 Sound Level Meter for Audiometer Calibration and Building Acoustic Measurements
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Model 820:
Class 1 Logging Sound Level Meter with Exceptional Battery Life
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Model 812:
Class 1 Logging Sound Level Meter with Exceptional Battery Life
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Model 720:
Class 2 Logging Sound Level Meter with Exceptional Battery Life
Learn More >>
  Model 831SoundTrack LxTSystem 824
SoundTrack LxT N/ForcerFirearm TestingSystem 824
Model 820Model 812Model 720

NEW Model 831 Sound Level Meter 

The Model 831 SLM is the most recent of the Larson Davis SLM products. Advances in the Technology provide a massive 250MB of Memory, with superior Performance and a Reliable design.

The inclusion of Weather Parameters increases the external environmental noise measurement capabilities. The Model 831 also includes the easy-to-use personal Health and Safety measurement features of other advanced SLM products

831 SLM Applications

Environmental Noise Measurement
Work Place Noise Safety Measurements
Industrial and Work Place Hygiene Inspection
Research Measurement Features

831 SLM Features

Simple 'One-hand' Operation
> 8 Hours Runtime on 4-AA Batteries
USB 2.0 Peripheral Connectors

AUX Connector for Mass Storage, Cellular and Dialup Modems for        Remote Operation
120dB Dynamic Range
250 MB Memory, 2 GB (Optional) Memory
RMS & Peak A, C & Z Frequency Weighting
RMS Slow, Fast & Impulse Detection Characteristics

Real Time 1/1 & 1/3 Octave Frequency Analysis
Sound & Voice Recording
Automatic Data Logging (20ms to 24 hours)
2-Channel Dosimeter Function

 

831 SLM  Brochure in Adobe Acrobat Format   Download: 831 SLM Brochure

 

Larson Davis 831 Sound Level Meter In Hand