Sound Level Meter with Data Logging

SM-20A

The Amprobe SM-20A Sound Meter has been designed to check compliance with safety regulations and perform acoustic analysis by safety engineers, health, industrial and safety offices as well as quality control. The SM-20A offers a PC interface.

 

Description

They use two different weighting filters required by the IEC651 and ANSI S1.4 Type 2 for audio filtering. The A weighting is for general noise sound level and the C weighting is for measuring sound level of acoustic material control in various environments (ie 94 dB 1  kHz, etc).

  • Designed to meet the measurement requirements of safety engineers, health, industrial safety offices and quality control in various environments.
  • A and C weightings for checking compliance with safety regulations as well as acoustic analysis
  • Measuring ranges: A weighting 30 – 130 dB, C weighting 35 – 130 dB
  • Frequency range: 31.5 Hz – 8 kHz
  • Display with 0.1 dB steps on a 4 digit LCD
  • Slow (1 sec) and fast (125 ms) response settings to check peak and average noise levels
  • Max/min recording
  • Internal memory, 14,000 records
  • Recording intervals from 1 second to 8 hours
  • PC computer download capabilities
  • Data hold to freeze reading on digital display
  • CE, designed to meet IEC651 type 2, ANSI S1.4 type 2

Specifications

FeaturesSM-10SM-20A
Microphone1/2 Electret condenser microphone
Standard appliedIEC 651 Type 2, ANSI 1.4 Type 2
Dynamic range50 dB
Time weightingFAST (125 mS), SLOW (1 sec)
Frequency range31.5 Hz → 8 kHz
Measuring level range(Auto Range) A-Weighting: 30 dB → 130 dB
C-Weighting: 35 dB → 130 dB
DataData holdMin/max
Internal memory14,000 records
Specifications
Display:4 digits LCD
Microphone:1/2 inch electret condenser microphone
Power supply:9V NEDA 1604, IEC 6F22, JIS 006P battery
Auto power off:Approx. 5 min
Environment:Indoor operation, < 2000 m
Standard applied:IEC 651 Type 2, ANSI 1.4 Type 2
Dynamic range:50 dB
Resolution:0.1 dB, Display update: 0.5 sec.
Time weighting:FAST(125mS), SLOW(1 sec)
Frequency range:31.5 Hz to 8 kHz

 

You may also like…