[ใหม่] เครื่องวัดเสียง

Top อันดับ 1 เครื่องวัดเสียง Digital Sound Level Meter, 40-130dB Auto/Manual Range

(Model: SL-814)

ราคาพิเศษ 2400 บาท

สนใจติดต่อ

บริษัท เอ็นที อินโนเวชั่น จำกัด Tel. 02-8870676 , Fax. 02-4960013

คุณเก๋: 087-9001168

คุณนัน Tel. 08-3434-7777 , 08-2520-2520

E-mail: ntinnovation@gmail.com

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