HY130D outdoor noise measuring unit Introduction: The performance of the HY130D outdoor noise measuring unit conforms to the requirements of the national standard GB/T 3785-2010 and the international standard IEC 61672:2013 "Sound Level Meter" for the Class 2 X-type sound level meter, and the microphone and the noise measuring unit body are separated by The extension cable is connected. The noise measurement unit has no display and is small in size. It is suitable for users to install in a complete set of chassis, and is therefore also referred to as “noise monitoring movement”. It is suitable for on-site measurement of mechanical and electrical noise, environmental noise, traffic noise, workplace noise and so on. HY130D outdoor noise measurement unit has A frequency weighting, C frequency weighting, Z frequency weighting, F time weighting and S time weighting. It also has automatic calibration function, which can measure noise time weighting sound level and maximum time meter. The weight level Lmax, the minimum time weighted sound level Lmin, and the peak C sound level LCpeak. At the same time, it also has RS485 serial interface (or RS232 serial interface, which must be explained when ordering), which can send measurement data to the computer, so it can be used as noise data collector when it is used together with external computer. The measuring unit has no static excitation self-calibration function. Technical Parameters: Performance level: GB/T3785/IEC61672 Level 2. The measured evaluation amount: 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). Microphone: HY205 2-stage engineering measuring microphone with 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: 20 Hz to 16 kHz. Frequency weighting: A weighting, C weighting, Z weighting. Time weighting: F (fast response), S (slow response). Measurement range: A sound level: 30 dB to 130 dB; C sound level: 40 dB to 130 dB; Z sound level: 45 dB to 130 dB. Digital output: The output connector is a four-pin socket, the output cable length is about 2m, RS485 serial interface, Modbus protocol, RTU format, communication baud rate 9600 Bd (user can customize RS232 interface). Extension cable: 5m (standard) or user defined. Power supply: External DC voltage 3 V. Dimensions: length × width × thickness 93mm × 80 mm × 24 mm. Operating temperature range: -10 ° C ~ 50 ° C
Introduction: The performance of the HY130D outdoor noise measuring unit conforms to the requirements of the national standard GB/T 3785-2010 and the international standard IEC 61672:2013 "Sound Level Meter" for the Class 2 X-type sound level meter, and the microphone and the noise measuring unit body are separated by The extension cable is connected. The noise measurement unit has no display and is small in size. It is suitable for users to install in a complete set of chassis, and is therefore also referred to as “noise monitoring movement”. It is suitable for on-site measurement of mechanical and electrical noise, environmental noise, traffic noise, workplace noise and so on. HY130D outdoor noise measurement unit has A frequency weighting, C frequency weighting, Z frequency weighting, F time weighting and S time weighting. It also has automatic calibration function, which can measure noise time weighting sound level and maximum time meter. The weight level Lmax, the minimum time weighted sound level Lmin, and the peak C sound level LCpeak. At the same time, it also has RS485 serial interface (or RS232 serial interface, which must be explained when ordering), which can send measurement data to the computer, so it can be used as noise data collector when it is used together with external computer. The measuring unit has no static excitation self-calibration function.
