Amprobe SM-10
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
Specifications
| Specifications | ||
| General Specifications | ||
| Display | 4 Digits LCD | |
| Microphone | 1/2 inch Electret condenser microphone | |
| Low Battery Indication | Replace battery when LCD displays  |
|
| 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 | |
