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Sound Level Meter
Sound Level Meter
Sound level meter, Model SL 2052, is battery operated, hand held, sound pressure level measuring instrument. Measured SPL (or simply sound level) is read on a digital LCD meter in dB 'units'. Range, filter and other options are selectable through sealed membrane switches, conveniently arranged. Lighted LEDs indicate options selected. Calibration: initially factory calibrated. Easy field calibration by user is possible using acoustic calibrator.
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Measurement of noise emission of :
- Machines, automobiles, aircraft, air conditioners, appliances
- Noise due to traffic, human voices, loud music, noise surveys, audits
- Checking compliance with recommended noise limits
- Sound insulation and reinforcement studies Measuring output and frequency spectrum of loudspeakers buzzers, sirens and other acoustic devices
- Standard: EC 651 Type 2
- Measuring Ranges: 40 90 dB, 80 130 d B
- Microphone: Electret,Sensitivity 10mV/Pa
- Frequency Response: 30 to 16000 Hz at 90 dB
- Frequency Weighting: A, Linear (30 16000Hz)
- Rectifier: True RMS (crest factor >6) Dynamic Range >50 dB
- Time Weighting: Slow: time constant 1 sec, Fast : time constant 125 ms
- Display: 3 1/2 digit LCD Resolution 0.1 dB
- Power Supply: Two 9V battery, type 6F22
- Operating Temp: O to 50° C Humidity - < 90 % (NC)
- Size: 285 x 80 x 38 mm
- Accessories included: Calibration screw driver, carrying pouch, Æ 3.5mm jack pin for AC output
- Accessories optional: Battery Adapter (+/- 9V), Acoustic calibrator
- 40 to 130 dB measuring range
- Linear weighting
- Slow, fast time weighting
- Digital LCD display
- Conforms to IEC 651 type 2
- Wide frequency range
- Use in noise measurement and control
- Loudspeaker acoustic measurements
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