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The Amprobe SM-20-A Sound Level Meter has been 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 weighting and C weight.
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-20-A conforms to the IEC651 Type 2, ANSI S1.4 Type 2, and JISC1502 requirements for Sound Level Meters.
Which means the SM-20-A 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.
Features:
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
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 Type2, ANSI S1.4 Type2 Includes: Instruction Manual, Wind Screen, USB Cable, 9V
Battery Includes: Instruction Manual, Wind Screen, USB Cable, 9V Battery.
| Features | SM-10 | SM-20A |
| Microphone | 1/2 Electret condenser microphone | |
| Standard applied | IEC 651 Type 2, ANSI 1.4 Type 2 | |
| Dynamic range | 50 dB | |
| Time weighting | Fast (125 mS), Slow (1 sec) | |
| Frequency range | 31.5 Hz → 8 kHz | |
| Measuring level range | (Auto Range) A-Weighting: 30 dB → 130 dB C-Weighting: 35 dB → 130 dB | |
| Data | Data hold | Min/max |
| Internal memory | - | 14,000 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) |
| Accessories: | Carrying case, windscreen, User manual and 9V battery |
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