MEWOI-HY106 high Precision Personal Noise Dosimeter,Dosímetro de ruído,personal sound exposure meter,Dosímetro de Ruídos Digital Portátil de Duplo Canal

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MEWOI-HY106 high Precision Personal Noise Dosimeter,personal sound exposure meter,Dosímetro de Ruídos Digital Portátil de Duplo Canal

Click to download: MEWOI-HY106 high Precision Personal Noise Dosimeter Specification

MEWOI-HY106 series personal sound exposure meter is a pocket-sized fully digital time-weighted integral sound level meter. Its performance meets the requirements of GB/T 15952-2010 and IEC 61252: 2002, and its performance is is equivalent to the Class 2 sound level meter required by GB/T 3785.1-2010 "Electroacoustic Sound Level Meter Part 1: Specifications".

HY106 series personal sound exposure meters can measure the 1 s equivalent continuous sound level, sound exposure, noise dose, equivalent continuous sound level, sound exposure level, normalized 8 hours, maximum sound level, weighted by A, C, and Z. Minimum sound level, cumulative percentage sound level and standard deviation. It has a digital output interface, which can download measurement data to a connected computer and print measurement results. It has 8 G memory and clock settings for easy storage and viewing of measurement data.

The HY106 series personal acoustic exposure meters use electret microphones with a nominal diameter of 6.35mm, and are equipped with a 0.8m extension cable. The cable is equipped with a clamp so that the measurement microphone can be worn on the shoulder or helmet of the person being tested. The structure of the instrument is compact and sturdy. The instrument is equipped with a belt clip. The instrument can be worn on the waist of the person being tested, or it can be placed directly in a bag or pocket, which is particularly convenient for on-site use and carrying. The power supply of the instrument is powered by two 1.5VLR6 batteries, which can work continuously for 24 hours and it is convenient to replace the batteries.

HY106 series personal acoustic exposure meters are suitable for monitoring various environmental noises and machine noises, especially suitable for noise measurement and analysis of industrial hygiene noise evaluation and hearing protection of occupational workers

MEWOI-HY106 Series Personal Sound Exposure Meter

TypePerformance LevelMicrophone TypeMeasurement Range

Exchange Rate

MEWOI-HY106Class 2MEWOI-HY24760 dBA~145 dBA3
MEWOI-HY106AClass 2MEWOI-HY24760 dBA~145 dBA3,4,5
MEWOI-HY106CClass 2MEWOI-HY20535 dBA~130 dBA3
MEWOI-HY106DClass 2MEWOI-HY20535 dBA~130 dBA3,4,5

Main Functions:

1,1s equivalent continuous sound pressure level, 1sLeq
2,Sound exposure
3,Noise dose (The reference sound level is 90 dB, and the exchange rate is shown upon.)
4, Equivalent continuous sound level;
5,Sound exposure level
6,Normalized 8h-average sound level
7,Maximum sound level
8,Mininum sound level
9,Percentile level LN (N = 5, 10, 50, 90 and 95)
10,Standard deviation, SD
11,Measurement duration Tm

Main Specification

Level of accuracyIt is equivalent to the Class 2 sound level meter that meets the requirements of GB/T 3785.1-2010.
Electromagnetic field radiation and immunity

X category specified by GB/T 3785.1-2010/IEC 61672-1:2002

Frequency weighting

A, C, Z.

Time weighting

F, S.

Normal operation conditionsAir temperature: 0℃~40℃;Relative humidity: 25 %~90 %; Static pressure: 65 kPa~108 kPa.
Reference environmental conditionsAir temperature: 23℃;Relative humidity: 50%;Static pressure: 101.325 kPa;There is no strong mechanical vibration, shock, strong electromagnetic field and corrosive gas around.
Microphone types

HY247 pre-polarized (back electret) capacitive Class 2 engineering measurement microphone, free-field frequency response, nominal diameter 6.35mm, nominal sound  pressure sensitivity of 1 mV/Pa (nominal sound pressure sensitivity level is -60 dB, the reference value is 1 V), the microphone tip capacitance is about 5 pF ~ 7 pF.

HY205 pre-polarized (back pole electret) capacitive Class 2 engineering measurement microphone, free-field frequency response, nominal diameter 12.7mm, nominal sound pressure sensitivity of 50 mV/Pa (nominal sound pressure sensitivity level is -26 dB, the reference value is 1 V), the microphone tip capacitance is about 15 pF.

Detection indicatorTrue RMS detector with a dynamic range of 90 dB.
Dot matrix liquid crystal display (128×64), the resolution of digital display is 0.1 dB, and the data update cycle is 1 s. Overload, underrange and battery status signs are provided on the display.
Measurement range of sound level

For HY106, HY106A and HY106B personal sound exposure meters:

  • A frequency weighting: 60.0 dB~145.0 dB;

  • C frequency weighting: 65.0 dB~145.0 dB;

  • Z frequency weighting: 70.0 dB~145.0 dB.

For HY106C, HY106D and HY106E personal sound exposure meters:

  • A frequency weighting: 35.0 dB~130.0 dB;

  • C frequency weighting: 40.0 dB~130.0 dB;

  • Z frequency weighting: 45.0 dB~130.0 dB.

Measurement range of sound exposure0.001 Pa2s~999 Pa2s and 0.278 Pa2h~9 999 Pa2h,Automatic unit conversion.
Measurement range of Noise dose

0.001%~9 999%.

Measurement range of sound exposure level.

For HY106, HY106A and HY106B personal sound exposure meters:

  • A frequency weighting: 67.0 dB~199.9 dB;

  • C frequency weighting: 72.0 dB~199.9 dB;

  • Z frequency weighting: 77.0 dB~199.9 dB.

For HY106C, HY106D and HY106E personal sound exposure meters:

  • A frequency weighting: 42.0 dB~199.9 dB;

  • C frequency weighting: 47.0 dB~199.9 dB;

  • Z frequency weighting: 52.0 dB~199.9 dB.

Measurement range of Normalized 8h-average sound level

For HY106, HY106A and HY106B personal sound exposure meters: 0.0 dB~145.0 dB;

For HY106C, HY106D and HY106E personal sound exposure meters: 0.0 dB~130.0 dB.

Measurement range of Standard deviation

0.00 dB~50.5 dB.

Measurement duration
  • Manual;

  • Preset time: 10s, 20s, 30s, 1min, 5min, 10min, 20min, 30min, 1h, 4h, 8h, 24h;

  • User defined: 1s~99h59min59s.

Frequency range

25 Hz~12.5 kHz.

Power supply

Powered by 2 LR6 alkaline batteries. The continuous operation time under the reference environmental conditions is not less than 24h.

When the power supply voltage is lower than 1.9V, a low voltage sign appears on the display and flashes.

Calibration frequency

1 kHz.

Auto calibration range

±5 dB (The sensitivity is 1mV/Pa as the reference value).

Sound calibrator model for checking and calibrating sound level meters

HY603 or other sound calibrator suitable for 6.35 mm microphone.

Effects of using a windshield

Not more than 0.5 dB in important frequency range.

Reference direction

Incident along the main axis of the microphone (0° incident).

Reference sound pressure level

114 dB.

Preheat time

1 min.

Self-generated noise level

For HY106, HY106A and HY106B personal sound exposure level: The A-weighted self-generated noise level under reference environmental conditions is not more than 57 dB.

For HY106C, HY106D and HY106E personal sound exposure level: The A-weighted self-generated noise level under reference environmental conditions is not more than 32 dB.

Digital output

RS232 serial communication port, output ASCII code, modulation rate (baud rate) is 9 600 Bd.

The digital output jack is a 3.5mm dual-channel headphone jack, which can also be connected to the optional printer to print the measurement results.


Influence of temperature

The difference between the indicated sound level at any temperature and the indicated sound level at the reference temperature within the operating temperature range of 0°C to 40°C shall not exceed ±1.0 dB.

Influence of humidity

When the relative humidity changes from 25% to 90%, the difference between the indicated sound level and the indicated sound level at the reference relative humidity shall not exceed ±1.0 dB.

Temperature and humidity limit values that may cause permanent damage to the sound level meter

——Temperature: -20℃, +60℃;

——Relative humidity: 95%.

The electrical impedance to replace the microphone for testing

For HY106, HY106A and HY106B personal sound exposure meter: 7 pF in series with 10 Ω;

For HY106C, HY106D and HY106E personal sound exposure meter: 15 pF in series with 10 Ω.

The highest sound pressure level that can be applied to the microphone

For HY106, HY106A and HY106B personal sound exposure meter: 165 dB;

For HY106C, HY106D and HY106E personal sound exposure meter: 146 dB.

Dimensions (length × width × thickness)

120mm×79mm×25 mm。

WeightAbout 220g


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