เครื่องวัดเสียง

เครื่องวัดเสียง Digital Sound Level Meter, 40-130dB Auto/Manual

Range

(Model: SL-814)

ราคาพิเศษ 2,600 บาท 

ผมอนันต์ ครับ Tel.0868910596

This product is high-precision instruments that measures sound pressure

level with measuring accuracy up to ±2dB commonly used in noise pollution

studies for the quantification of almost any noise, but especially for industrial

and environmental.

        Featuring wide measuring range (40 ~ 130 dB), Bar-Graph Indication,

A/C frequency weighting, Fast / Slow response and Maximum Hold function.

The meter also provides a windscreen to filter-out unwanted signals. In

addition, the meter meets the International Committee of the IEC651 TYPE2

and the American National Standards ANSIS1.4 TYPE2 as well as the

measurement requirements of Safety Engineers, Health, Industrial Safety

Offices and Sound Quality control in various environment.

Sound level meter can be used for noise projects, quality control,

environmental noise control and health monitoring such as: construction,

schools, hospitals, shopping malls, theaters, offices, road traffic, family, audio

and other occasions, the noise level measurement applications. The meter

has wide range of applications such as noise pollution studies, research and

other industrial use.

Key Features:

• Passed the high standards of IEC651 TYPE 2 & ANSI S1.4 TYPE 2 for sound level meters

• Instananeous sound measure function

• Wide measuring range 40 ~ 130dB (decibels)

• Two equivalent weighted sound pressure levels, A and C
  

• Fast and Slow dynamic characteristics modes

• Max locked function has the maximum value, after the stent-in-one unique, easy to use

• AC Analog Signed Output for frequency analyzer level recorder or X-
• axis, FFT analyzer, graphic recorder, etc. to do statistical analysis of data logger

• Auto power off function

• Low-power display or low battery indicator

• Overload prompts

• Portable, easy to use and handy

• Tripod Mounting option

• Sound Level Selecting Button Switches

Specifications:

• Sound Level: 40 ~ 130 dB With Level Selecting Button Switches
  ****level 1: 40 ~ 70dB
  ****level 2: 60 ~ 90dB
  ****level 3: 80 ~ 110dB
  ****level 4: 100 ~ 130dB
  ****level 5: 40 ~ 130dB

• Accuracy: ±2dB (under reference condition)

• Measuring Level: 40~130dBA, 40~130dBC

• Frequency Range: 31.5 Hz ~ 8.5 kHz

• Linearity/Dynamic Range: 30dB

• Frequency weighting: A and C features

• Digital LCD: 45 x 35mm with 4 digits

• Resolution: 0.1dB

• Display: 0.5 secretary

• Sampling Rate: 2 times/second

• Dynamic Characteristic (Time weighting): FAST (high speed) / SLOW (low speed)

• 1 bar graph represents 1dB in the Analog Bar Graph

• Bar Graph: 50dB scale at 1dB step for monitoring current sound pressure level display period of 50mS

• Level Ranges: 40 ~ 70dB, 60 ~ 90dB, 80 ~ 110dB, 100 ~ 130dB, 40 ~ 130dB

• Load indication: Use the symbol OVER (indicating over range) and UNDER (indicating less than lower limit of the range)

• AC output: 0.707 Vrms at FS output impendance aprrox. 600Ω

• Microphone: 1/2 inch electret condenser microphone

• Maximum Hold

• Working Environment

• Temperature: 0~40°C (32~104°F)

• Humidity: 10~70% RH

• Storage Environment

• Temperature: -10~50°C (14~122°F)

• Humidity: 10~80% RH

• Power Supply: 6F22 9V alkaline cells/battery or DC 9V 100mA

• Weight: approx. 380g

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