MEWOI-TL2256 Personal Noise Dosimeter Logging measurement kit,Dosímetro de ruído,personal sound exposure meter

  • Name:
    MEWOI-TL2256 Personal Noise Dosimeter
  • Model No.:
    MEWOI-TL2256
  • Main Features:
    Calculates all the popular noise dose parameters
  • Price
OEM/ODM Testing Instruments Manufacturer
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Contact Us for QuotationEmail:mewoi@mewoi.comWhatsapp: +8618620373879

MEWOI-TL2256 Personal Noise Dosimeter Logging measurement kit,personal sound exposure meter

Click to downoad: MEWOI-TL2256 Personal Noise Dosimeter Logging measurement kit Specification

Principle of Measuring Accumulated Noise Exposure

DOSE is a parameter used to quantify noise exposure measured in a period, during turns of % noise exposure relative to 90dBA for 8 hours. 
i.e. 100% DOSE = 90dBA for 8 hours 
This is known as the Criterion. Other criterion are available such as 100% DOSE = 85dBA for 8 hours to meet legislation in different countries. 
If the person stayed in this environment for 4 hours, he would receive 50%DOSE. 
Also if the noise level was say 93dBA, 3dB higher, a 100% DOSE would be accumulated in only 4 hours, The above example is for a dose meter with 3dB Exchange Rate, where a 3dB increase in sound level corresponds to a doubling energy. A dose meter with 5dB Exchange Rate is also, available where the sound must increase by 5dB to double the dose as required to meet noise legislation in some countries.

MAIN FEATURES

The Noise Dose Meter measure the frequency weighted noise exposures and peak sound levels simultaneously.
1,Simple operation, including direct read–out of results.
2,Eight built–in standard dose measurement setups : OSHA80, OSHA90, MSHA-80, MSHA-90, DOD, ACGIH, ISO85 and ISO90.
3,Nine user – defined measurement setups.
4,A single sound level meter (SLM) setup.
5,50 dose (DATA) result stores.
6,Download of setups from PC to the meter.
7,Keypad lock protects meter against accidental operation.
8,Timers support pre–selection of measurement time and duration.
9,Use USB data output to connect with PC.

TECHNICIL SPECIFICATION

TECHNICAL SPECIFICATION


Applied Standards:

IEC61252, ANSI S1.25 – 1992 for dose meter and sound exposure meters. IEC 61672-1-2013 Class 2

Microphone:

1/2-inch electret condenser microphone with 31-inch integral cable

Display

Liquid Crystal Display

Measurement Ranges (Linearity and Indicator ranges at 4KHz)

60 – 130 : 60 – 130dB (A and C), 70 – 140 : 70 – 140dB (A and C)

Peak  Ranges  (C–weighted  or  Linear  Peak  over the  top  40dB  of  each  measurement  range)

60 – 130 : 93 – 133dB Peak, 70 – 140 : 103 – 143dB Peak

Frequency Weightings:   

RMS Detector: A or C, Peak Detector: C or Z (Linear),

Time Weightings:    

Fast and Slow (RMS detector)

Selectable thresholds : 

40 to 90dB

Exchange rates: 

3, 4, 5 and 6dB  

Stabilization Time

10 seconds from power on

Threshold and Criterion Levels (From the setup, predefined in the built – in setup according to applicable standards)

User–defined setups in the following ranges : Threshold Level : 70 – 90dB in 1dB steps, Criterion Level : 80, 84, 85 or 90dB

Criterion Level : 80, 84, 85 or 90dB

At 0.1dB above the top of the selected measurement range

At 0.1dB above the top of the selected measurement range

Under–Range Indications

High Level Detector

115dB

Keypad Lock 

Lock and unlock by pressing key combinations: Up and right arrows to lock; left and down arrows to unlock

Clock

Real–time clock with calendar

Memory

Results from 50 measurements can be stored for later viewing and download

Measurement Control

Measurement Duration : May be set to 5, 10, 15, or 30 minutes or 1, 2, 4, 8, 10, 12, or 24 hours

Timers

Up to 16 timers(automatic start and stop)can be set(maximum up to one month ahead of measurement time)

Timer Controlled Started / Stop 

Set up from the PC software or meter keypad

Logging

All measurement parameters values can be logged

Logging Period (LP)

1s, 2s, 5s, 10s, 15s, 20s, 30s, 1min, 2min, 5min, 10min, 15min, 20min, 30min or 60min

Logging Capacity

120000 values can be stored at any one time

Setup 

Eight built–in (predefined) default setups are included. Nine additional user–defined setups can be stored

Output 

USB interface

Power Supply

4x1.5V AAA Size (UM-4)Battery

Battery Indicator

Symbol indication battery voltage level in 4 steps. Indicator flashes when voltage is insufficient for operation

Operating Temperature & Humidity

0 – 50ºC (32 to 122ºF) ,10 – 90%RH

Storage Temperature & Humidity

-10 – 60ºC(14 to 140ºF) ,10 – 75%RH

Size

140x72x34mm

Weight

Approx. 350g (including batteries)

Accessories

Main Unit, External Probe, Screwdriver, Carrying Case (B04),Manual



label:   Noise dosimeter personal sound exposure meter Dosímetro de ruído

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