30~130 dB Decibel 7 Ranges Noise Sound Pressure Level Meter

Specifications

Brief Description

This Digital Sound Level Meter is an instrument to measure Sound Pressure Level in decibels (dB). It is featured with wide measuring range (30 ~ 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.

It is a portable, easy to use and handy instrument for sound quality control in office, home, school and construction site. The meter has wide range of applications such as noise pollution studies, research and other industrial use.

Features 

• Conformed to the IEC 651 Type 2 and ANSI S1.4 Type 2 set standard
• Wide Measuring Range: 30 ~ 130 dB
• With 2 equivalent weighted sound pressure levels A and C
• Fast and Slow dynamic characteristic modes
• AC and DC signed output for frequency analyzer level recorder, FFT analyzer and graphic recorder etc
• Equipped with windscreen to filter noise or unwanted signal
• Bar graph indication for Sound Level Range
• Maximum hold function
• Large LCD screen with 4 digits reading
• With tripod mounting on the back of the unit for field use

Specifications

• Sound Level: 30 ~ 130 dB with Level selecting button switches
  • Level 1: 30 ~ 80 dB
  • Level 2: 40 ~ 90 dB
  • Level 3: 50 ~ 100 dB
  • Level 4: 60 ~ 110 dB
  • Level 5: 70 ~ 120 dB
  • Level 6: 80 ~ 130 dB
  • Level 7: 30 ~ 130 dB
• LCD display: 4 digits
• Display: 0.5 secretary
• Resolution: 0.1 dB
• Accuracy: ±1.5 dB
• Frequency Range: 31.5 Hz ~ 8.5 kHz
• Linearity Range: 50 dB
• Frequency Weighting: A, C
• Measuring Level: 30 ~ 130 dB(A) (A-weighted decibels), 35 ~ 130 dB(C) (C-weighted decibels)
• Bar graph: 50 dB scale at 1 dB step for monitoring current sound pressure level display period: 50 mS
• Over range indication: Under indication less than lower limit of the range
• AC output: 0.707 Vrms at Full Scale output impedance approx. 600 Ω
• DC output: 10 mV / dB output impedance approx. 100 Ω
• Time weighting: Fast / Slow
• Microphone: ½ inch electret condenser microphone
• Power Supply: 9 V (6F22) Battery (included)
• Power life: about 30 hours (alkaline battery)
• Operating Temperature: 0 ~ 40 °C (32 ~ 104 °F)
• Operating Humidity: 10 ~ 70 % R.H.
• Storage Temperature: -10 ~ 50 °C (14 ~ 122 °F)
• Storage Humidity: 10 ~ 80 % R.H.
• Dimensions: approx. 235 (L) x 70 (W) x 30 (H) mm (9.25' x 2.76' x 1.18' inch)
• Weight: approx. 350 g

One Set Included

• 1 x Sound Level Meter
• 1 x Sponge Ball or Windscreen
• 1 x 9 V 6F22 Battery
• 1 x Instruction Manual
• Standard factory package