Phone: (08) 9453 2256
Email: sales@eteh.com.au

Sound Level Meter

The Amprobe SM Series of Sound Level Meter is designed to meet the measurement requirements of Safety Engineers, Health, Industrial safety offices and Quality Control in various environments. It offers two types of measurements: A and C weighting.

General

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 94dB 1 kHz etc...). The SM-10 conforms to the IEC651 Type 2, ANSI S1.4 Type 2, and JISC1502 requirements for Sound Level Meters. Which means the SM-10 uses two different weighting filters required by the IEC 651 and ANSI S1.4 Type 2: the A-Weighting and the C-Weighting audio filtering.

The SM-20 conforms to the IEC651 Type 2,ANSI S1.4 Type 2, and JISC1502 requirements for Sound Level Meters. Which means the SM-20 uses two different weighting filters required by the IEC 651 and ANSI S1.4 Type 2: The A-Weighting and the C Weighting audio filtering.

  • 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 30~130dB, C Weighting 35~130dB
  • Frequency range: 31.5Hz~8KHz
  • Display with 0.1dB steps on a 4 digit LCD
  • Slow (1 sec) and fast (125ms) response settings to check peak and average noise levels
  • MAX/MIN recording
  • Internal memory, 14,000 records (SM-20 only)
  • Recording intervals from 1 second to 8 hours (SM-20 only)
  • PC computer download capabilities (SM-20 only)
  • Data Hold to freeze reading on digital display
  • CE, designed to meet IEC651 Type2, ANSI S1.4 Type 2

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Specifications

Specifications
General Specifications
Display   4 Digits LCD
Microphone   1/2 inch Electret condenser microphone
Low Battery Indication   Replace battery when LCD displays battery image
Power Supply   9V NEDA 1604, IEC 6F22, JIS 006P battery
Power Life   Approx. 50 hrs (alkaline Battery)
Auto Power Off   Approx. 5 min
Environment   Indoor operation, < 2000 m
Electrical (audio)
Standard applied   0.65 Vrms at FS (fullscale), output impedance approx. 600Ω
Dynamic range   10mV/dB, output impedance approx. 100Ω
Resolution   ±2.0dB (under reference conditions)
Time weighting   Low: 35~100dB and Hi: 65 ~ 130 dB
Frequency range   65dB
Measuring level range
(Auto Range)
SM10 A Weighting: 30 to 130 dB
C Weighting: 35 to 130 dB
  SM20 A Weighting: 30 to 130 dB
C Weighting: 35 to 130 dB
Accuracy   ± 1.5 dB
Calibration cycle   1 year
Temperature/Humidity
Operating Temperature   5 °C to 40 °C (41 °F to 104 °F); <80% R.H.
Storage Temperature   -10 °C to 60 °C (14°F to 140°F), <70 % R.H
Dimensions (L x W x H)   200mm x 55mm x 38mm

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