Casella 620B Series Sound Level Meter TSI

Casella 620B Series Sound Level Meter TSI

Model: CEL-620B1 | Professional Noise Meter with Octave Band Analysis

Casella CEL-620B1 Sound Level Meter TSI is a versatile, high-performance instrument specifically designed for advanced occupational noise assessments and industrial sound measurement. Building on the capabilities of the CEL-620A model, the CEL-620B includes full octave band analysis, making it the preferred solution for selecting appropriate hearing protection and evaluating complex noise environments.

With compliance to key international standards such as IEC 61672 (Class 1 or 2), ANSI S1.4, OSHA, EU, and ACGIH, the CEL-620B is ideal for any workplace requiring regulatory noise compliance. Casella 620B Series Sound Level Meter TSI simultaneously measures all relevant acoustic parameters including LEQ, LAVG, and LPeak, and stores data from every run automatically, even for parameters not currently displayed.

The unit features a high-resolution color display, intuitive interface, and smart operation modes. Screens are color-coded—green while measuring, red when complete—for quick visual feedback. The integrated octave band filter enables detailed spectral analysis essential for matching noise profiles with appropriate hearing protection methods (HML or Octave Method).

Designed for long field sessions, the CEL-620B runs up to 12 hours on 3 AA batteries and stores up to 999 measurement runs, each up to 24 hours in duration, even with 1-second time history enabled. Users can add voice notes, GPS tags, and perform automatic calibration using the CEL-120 Series calibrator, with timestamped calibration data recorded.

Key Features

• Measures LEQ, LAVG, LPeak with full Octave Band Analysis

• 999-run storage capacity with time history (1s–30min)

• Voice note capability with up to 33 hours of audio storage

• GPS location tagging for measurement traceability

• Wide dynamic range up to 140 dB (Peak)

• Real-time graphical data display

• Auto calibration with CEL-120 Series Calibrator

• Six measurement setups (4 pre-set, 2 customizable)

• Class 1 or Class 2 microphone options

• Rugged, compact design for field use

• Fully compliant with global standards (IEC, ANSI, OSHA)

• Multilingual menu (9 languages)

• Long battery life (approx. 12 hours from 3 AA batteries)

Applications

• Occupational noise exposure assessments

• Workplace safety monitoring (ISO 9612, OSHA 29CFR 1910.95)

• Hearing protection selection using octave band method

• Machinery and equipment noise testing

• Environmental noise compliance verification

• Acoustic surveys in industrial hygiene

Specifications

• Model: CEL-620B1

• Volume Range: Up to 140 dB Peak

• Microphone: Class 1 or Class 2 (depending on selection)

• Memory: 999 data runs with full time history

• Time History Storage: 1 second to 30 minutes

• Display: High-resolution color screen

• Power: 3 AA batteries (12 hours typical use)

• Calibration: Automatic with CEL-120 Series Calibrator

• Languages: 9 available in menu

• Audio Notes: Up to 33 hours

• GPS: Integrated location tagging

Included in Kit

• Casella CEL-620B Sound Level Meter

• Acoustic calibrator

• Windshield

• USB data transfer cable

• Batteries

• Carrying case

• Tripod (optional per kit type)

• Insight Data Management Software

• User Manual and Quick Start Guide