Introduction: HY605 type sound calibrator is a sound calibrator using acoustic feedback technology. It meets the requirements of national standard GB/T15173-2010 and international standard IEC 60942:2003 "Electroacoustic Acoustic Calibrator" for Class 1 sound calibrator It is suitable for the calibration of noise measuring instruments such as microphones and sound level meters with nominal microphone diameters of 23.77 mm, 12.7 mm and 6.35 mm. HY605 is a multi-frequency sound calibrator, with three nominal frequencies of 250Hz, 500Hz, 1000Hz, etc., which can generate 94 dB nominal sound pressure level. In addition to calibrating the sensitivity of the noise measuring instrument, it can also roughly Check the level linearity of the instrument and the error of the level range controller, which helps to find the fault and defect of the instrument. The HY605 sound calibrator is based on a single-chip microcomputer. It uses digital synthesis technology to generate accurate and stable sinusoidal signals. It uses built-in reference microphone sound feedback technology and temperature automatic correction technology to make the sound pressure level they produce have good temperature stability Performance and static pressure stability. Technical Parameters: Performance level: GB/T15173/IEC 60942 level 1. Nominal sound pressure level: 94 dB (reference is 2×10-5 Pa). Nominal frequency: 250Hz, 500Hz, 1000Hz. Tolerance of sound pressure level: ±0.25dB. Frequency tolerance limit: ±0.7%. Total distortion: 2.5%. Equivalent volume: 280 ml. Nominal diameter of coupling cavity: 23.77 mm (with an adapter can be converted to 12.7 mm). Power indicator: white light-emitting diode, glowing green when the power supply voltage is normal. Power supply: 2 LR6 batteries. Weight: 250 g. Dimensions: 48 mm (diameter) × 149 mm (length). Operating temperature range: -10℃～50℃.
Introduction: HY605 type sound calibrator is a sound calibrator using acoustic feedback technology. It meets the requirements of national standard GB/T15173-2010 and international standard IEC 60942:2003 "Electroacoustic Acoustic Calibrator" for Class 1 sound calibrator It is suitable for the calibration of noise measuring instruments such as microphones and sound level meters with nominal microphone diameters of 23.77 mm, 12.7 mm and 6.35 mm. HY605 is a multi-frequency sound calibrator, with three nominal frequencies of 250Hz, 500Hz, 1000Hz, etc., which can generate 94 dB nominal sound pressure level. In addition to calibrating the sensitivity of the noise measuring instrument, it can also roughly Check the level linearity of the instrument and the error of the level range controller, which helps to find the fault and defect of the instrument. The HY605 sound calibrator is based on a single-chip microcomputer. It uses digital synthesis technology to generate accurate and stable sinusoidal signals. It uses built-in reference microphone sound feedback technology and temperature automatic correction technology to make the sound pressure level they produce have good temperature stability Performance and static pressure stability.
