Wide range integrating real time analyzer kit
Manufacturer's Link: http://www.casellausa.com/store/productlist.cfm?catID=7E504645411578
Many industrial measurements of complex noises require a complete knowledge of the variable noise level climate over a period of time. The 620 meter is designed to satisfy this need and to enhance it by providing the capture and display of the highest maximum level and the lowest minimum level together with the integrated time average level. A super wide 120 dB dynamic range means that the user does not need to worry about changing scales as it will always be on the right scale and the provision of all the popular frequency and time weightings allow many different measurements to be taken by new and experienced users alike. The full-color, high-precision, graphic LCD enhances the user experience with this new meter
For measurements of simple noise levels the instantaneous sound pressure level is often adequate. However, in many real workplace situations the noise levels are variable or changing too quickly to accurately visually estimate the average level over a representative time period. The 620 is designed to assist in the correct interpretation of these difficult noise climates by providing the time average noise level with the 3, 4 and 5 dB exchange rates. Changing noise levels are properly integrating into the overall time average answer and displayed as the Leq (with Q=3), LDOD (Q=4) or the Lavg (Q=5) exchange rates. This enables the 620 to correctly assess changing noise levels and enables the comparison of results to the requirements of OSHA or ACGIH or NIOSH. Additional octave and third octave band filters in the B and C versions of the 620 provide for instant frequency analysis of workplace noise levels that is so important for the correct prescription of hearing protectors or noise reduction applications
Key benefits