HY114E sound level meter Introduction: The HY114E sound level meter is a hand-held instrument whose performance complies with the requirements of the national standard GB/T 3785-2010 and the international standard IEC 61672:2013 "Sound Level Meter" for Class 1 X-class sound level meter. It is suitable for electromechanical. On-site measurement of product noise, environmental noise, traffic noise, workplace noise, etc. It has a digital output interface that can be used as a noise data collector, analyzed and processed by a PC program, and can also be used to print measurement results on site. Technical Parameters: Performance level: GB/T3785 and IEC61672 Level 1. The measured evaluation amount: LP (time weighted sound level), Lmax (maximum time weighted sound level) Microphone: HY207 type 1 engineering measuring microphone, nominal diameter 12.7 mm, free field frequency response. The nominal sound pressure sensitivity is 50 mV/Pa (nominal sound pressure sensitivity level is -26 dB, reference value is 1 V). Frequency range: 10 Hz to 20 kHz. Frequency weighting: A weighting, C weighting. Time weighting: F (fast response). Measurement range: A sound level: 30 dB ~ 130 dB; C sound level: 40 dB ~ 130 dB, divided into three levels: Low gear: 30 dB to 90 dB; Middle gear: 50 dB to 110 dB; High gear: 70 dB to 130 dB, hand selection. Display: 128 × 64 dot matrix liquid crystal display (LCD), resolution of 0.1dB, with overload, under range, battery voltage low alarm and other signs. Digital output: The output jack is a 3.5 mm two-channel headphone jack, RS232 serial communication port, output ASCII code, modulation rate (baud rate) is 300 Bd (default), 9 600 Bd. Analog output: The output jack is a 3.5 mm two-channel headphone jack with a minimum load impedance of 10 kΩ. ——DC log voltage: The output voltage is related to the logarithm of the measured sound pressure. The output voltage is independent of the stage range. The unit sound pressure output voltage is 15 mV/dB. The upper and lower boundaries of the corresponding total range are 1950 mV and 450 mV, respectively. ——AC linear voltage: The output voltage is linearly related to the measured sound pressure, and the output voltage corresponding to the upper boundary of the stage range is 0.5 V. Power supply: 4 R6 type (5th) batteries, can work continuously for 16h under reference environmental conditions. Dimensions: length × width × thickness 256 mm × 74 mm × 25 mm. Weight: 500g. Operating temperature range: -10 ° C ~ 50 ° C.
Introduction: The HY114E sound level meter is a hand-held instrument whose performance complies with the requirements of the national standard GB/T 3785-2010 and the international standard IEC 61672:2013 "Sound Level Meter" for Class 1 X-class sound level meter. It is suitable for electromechanical. On-site measurement of product noise, environmental noise, traffic noise, workplace noise, etc. It has a digital output interface that can be used as a noise data collector, analyzed and processed by a PC program, and can also be used to print measurement results on site.
