Casella 620 Series Sound Level Meters

Advanced Tools for Occupational Noise

In many workplaces, noise is rarely constant. A manufacturing line may start and stop, or a vehicle may pass by, creating variable noise levels. A standard sound level meter can struggle to quantify the risk in these dynamic environments. The Casella 620 Series of integrating sound level meters is designed specifically to address this challenge. By calculating the equivalent continuous sound level (Leq) and the average sound level (Lavg), the 620 Series provides a single number that represents the total noise energy over a period. This is the metric required by major safety standards, including OSHA and ISO, for determining permissible exposure limits.

Data You Can Trust

The 620 Series is built to provide data integrity and ease of analysis.

• Broadband Measurement: Simultaneously measures all key noise parameters (Leq, Lmax, Lmin, Lpeak) so you don't miss critical data points.
• Voice Notes: The ability to record voice notes at the start of a run allows you to tag measurements with location or machine details, eliminating the need for pen and paper in the field.
• Octave Band Analysis (Model Dependent): Selected models in the 620 Series include real-time octave band analysis. This feature is crucial for selecting the correct hearing protection. By understanding the frequency content of the noise, you can verify if specific earplugs will provide adequate attenuation for the user.

Designed for the Field

Field instrumentation must be intuitive. The 620 Series features a structured menu system that is easy to navigate, even for infrequent users. The large color screen is readable in varying light conditions, from dim mechanical rooms to bright outdoor sites. With a substantial battery life, it supports long measurement durations required for representative surveys. The data collected can be downloaded via USB to the Insight database software, where it can be archived and used to generate professional compliance reports. The Casella 620 Series delivers the perfect balance of functionality and usability, helping you implement a robust noise monitoring strategy with confidence.