Machine noise tester Business have Which?

Machine noise tester Business have Which? Distribution machine noise tester, then on to Zhuhai Chak Instruments. HS6021 noise is used to calibrate sound level meters and other measuring instruments for acoustic sound pressure calibration. Its distinguishing feature is: It has both 94.0dB and 114.0dB two standard sound pressure level, the instrument can be calibrated SPL points. Its operating frequency of 1000Hz, the sound level meter used for calibration and weighting network independent (A, B, C, D weighting network attenuation at 1000Hz are zero). HS6021 noise calibrator details HS6021 noise Calibrator provides an overview HS6021 type sound level calibrator, small size, light weight, low power consumption, stable performance, easy to use. With HS5633, HS5671, HS6298 and other acoustic sound level meter and other measuring instruments supporting the use of a compact ideal calibration source. The main technical performance 1 SPL: 94dB, 114dB (with 2 × 10-5Pa reference) Note: 1Pa (Pa) 1N / m3 = 10 Barye. 2 SPL Accuracy: 94dB ± 0.2dB 114dB ± 0.5dB 3 Frequency: 1000Hz ~ ± 1% 4 harmonic distortion: ≤1% 5 Frequency: 1000Hz ~ ± 1% 6 harmonic distortion: ≤1% 7 battery: 9V laminated battery 6F22 8 temperature range: 0 ℃ ~ + 40 ℃ 9 Relative humidity: ≤80% (40 ℃) 10 Dimensions: φ41 × 102 mm 11 Weight: about 250g 12 Accessories: fitting one, product certification 1 , calibration certificate 1 Customer Story: Hengda Real Estate Development Co., Ltd. Chengdu Tong-sheng Automation Equipment Co., Ltd.