Introduction: The HY108C 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 2 X-type sound level meters. This sound level meter is the company's latest all-digital sound level meter. It is light and easy to carry. It is suitable for on-site measurement of mechanical and electrical products noise, environmental noise, traffic noise, workplace noise, etc. It can also be applied to college teaching demonstrations. The sound level meter signal output has only analog output and no digital output. Technical Parameters: 1. Performance level: GB/T3785 and IEC61672 Level 2. 2. The measured evaluation quantity: LP (time weighted sound level) or Lmax (maximum time weighted sound level), Lmin (minimum time weighted sound level), and LCpeak (C weighted peak sound level). 3, the microphone: HY205 type 2 engineering measurement 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). 4. Frequency range: 20 Hz to 16 kHz. 5. Frequency weighting: A weighting and C weighting. 6, time weighting: F (fast response), S (slow response). 7. Measurement range: A sound level: 30 dB to 130 dB; C sound level: 40 dB to 130 dB. 8. Threshold setting range: 30 dB~130 dB, the sound level exceeds the threshold, giving a super-threshold flag and outputting a high level. 9. Automatic calibration range: ±4.5dB (reference value is 50mV/Pa). 10, display: 128 × 64 dot matrix liquid crystal display (LCD), resolution of 0.1dB, with overload, under range, battery voltage low alarm, super threshold alarm and other signs. 11. Analog output: The output jack is a 3.5 mm two-channel headphone jack with a minimum load impedance of 10kΩ. ——DC log voltage: The output voltage is related to the logarithm of the measured sound pressure, and the output voltage per unit sound pressure is 15 mV/dB. - 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 2.0V. 12. Power supply: 2 LR6 type (5th) batteries, which can work continuously for 27 hours under reference environmental conditions. 13. Dimensions: length × width × thickness 210 mm × 68 mm × 31 mm. 14, weight: 210g. 15. Operating temperature range: 0 °C ~ 40 °C.
Introduction: The HY108C 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 2 X-type sound level meters. This sound level meter is the company's latest all-digital sound level meter. It is light and easy to carry. It is suitable for on-site measurement of mechanical and electrical products noise, environmental noise, traffic noise, workplace noise, etc. It can also be applied to college teaching demonstrations. The sound level meter signal output has only analog output and no digital output.
