HY130B type noise measuring unit Introduction: The performance of the HY130B type 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 class sound level meter. The microphone and the noise measuring unit body are separated by the extension. Cable connection, the noise measurement unit has no display and is small in size, 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. The HY130B type noise measuring unit has A frequency weighting, C frequency weighting, Z frequency weighting, F time weighting and S time weighting, and also has an automatic calibration function, which can measure the noise time weighting sound level and maximum time weighting. Sound level Lmax, minimum time weighted sound level Lmin, 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 unit is not protected from wind and rain. 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: 1m (standard) or user defined. Power supply: External DC voltage 3 V. Dimensions: length × width × thickness 93mm × 80 mm × 24 mm. Weight: no more than 210g. Operating temperature range: -10 ° C ~ 50 ° C
HY130B type noise measuring unit Introduction: The performance of the HY130B type 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 class sound level meter. The microphone and the noise measuring unit body are separated by the extension. Cable connection, the noise measurement unit has no display and is small in size, 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. The HY130B type noise measuring unit has A frequency weighting, C frequency weighting, Z frequency weighting, F time weighting and S time weighting, and also has an automatic calibration function, which can measure the noise time weighting sound level and maximum time weighting. Sound level Lmax, minimum time weighted sound level Lmin, 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 unit is not protected from wind and rain.
