SM-20

SM-20 Datasheet


SM-20

Part Datasheet
SM-20 SM-20 SM-20 (pdf)
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Data Sheet

SM-20

Sound Meter

The Amprobe SM-20 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 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 CWeighting 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
• 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

Test Tools

SM-20 Sound Meter

Specifications

General Specifications Display Microphone Low Battery Indication Power Supply Power Life Auto Power Off Environment
4 digits LCD 1/2 inch Electret condenser microphone Replace battery when LCD displays 9V NEDA 1604, IEC 6F22, JIS 006P battery Approx. 50 hrs alkaline Battery Approx. 5 min Indoor operation, < 2000 m

Data Sheet

Temperature / Humidity Operation Storage Dimension Weight
5 °C to 40 °C 41°F to 104°F < 80% RH -10 °C to 60 °C 14°F to 140°F < 70 %RH 200 x 55 x 38 mm x in 233g. lb. Including battery

Electrical Audio Standard applied Dynamic range Resolution Time weighting Frequency range Measuring level range

Accuracy Calibration cycle Accessories

IEC 651 Type2, ANSI Type 2 50 dB, Display Update sec. FAST 125mS , SLOW 1 sec Hz to 8 kHz Auto Range A Weighting 30 to 130 dB C Weighting 35 to 130 dB ± dB 1 year Carrying case, windscreen, User manual and 9V battery

EN61326-1 This product complies with requirements of the following European Community Directives 89/336/EEC Electromagnetic Compatibility and 73/23/EEC Low Voltage as amended by 93/68/EEC CE Marking . However, electrical noise or intense electromagnetic fields in the vicinity of the equipment may disturb the measurement circuit. Measuring instruments will also respond to unwanted signals that may be present within the measurement circuit. Users should exercise care and take appropriate precautions to avoid misleading results when making measurements in the presence of electronic interference.

OPTIONAL ACCESSORIES

SM-CAL1 Sound Meter Calibrator with two output levels of 94dB and 114dB, output frequency of 1000Hz, fits microphones

Test Tools website email Everett, WA 98203 Tel 877-AMPROBE

Test Tools

Test Tools Europe Amprobe Test Tools Europe Beha-Amprobe GmbH In den Engematten 14 79286 Glottertal, Germany Tel. +49 0 7684 8009 - 0
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Datasheet ID: SM-20 517648