Casella CEL-633B Sound Level Meter TSI

Casella CEL-633B Sound Level Meter TSI

Model Number: CEL-633B1 – Sound Level Meter with Octave Band Analysis for Occupational and Environmental Noise Monitoring

Casella CEL-633B Sound Level Meter TSI is a versatile, high-performance instrument designed for professionals conducting occupational and environmental noise assessments. Fully compliant with ISO9612 and OSHA 29CFR 1910.95 standards, this model includes integrated real-time 1/1 octave band analysis, making it especially useful for noise at work applications and the selection of hearing protection.

With a straightforward user interface and flexible measurement capabilities, the CEL-633B supports simultaneous storage of all key parameters, including average (Leq and Lavg) and peak (Lpeak) levels. This allows users to perform accurate, efficient noise measurements without switching between modes. The interface allows users to customize displayed data to be as simple or detailed as needed.

The meter features event-triggered data capture, allowing users to define noise level thresholds (dB) that activate the recording of additional metrics such as Leq and Lmax, along with high-resolution time history data (down to 10 ms). The instrument stores up to 60 hours of audio recordings, ideal for identifying specific noise sources or events. Voice notes can also be recorded to annotate measurements in the field.

For environmental monitoring, the CEL-633B stores statistical noise data (Ln%) and includes data markers and back erase functionality. This ensures thorough data analysis, especially when using Casella Insight software for post-measurement review. When paired with the CEL-120 calibrator, calibration date and time are stored automatically, enhancing data integrity.

Ideal for both portable use and unattended monitoring with an environmental kit, the CEL-633B is available as a standalone unit or as part of a complete monitoring package.

Features and Benefits

• Simultaneous measurement and storage of all key parameters

• Real-time 1/1 octave band analysis for hearing protection selection

• Event-triggered data capture with time resolution down to 10 ms

• Up to 60 hours of onboard audio recording

• Data markers and back erase functionality

• Pre-configured and customizable setups for various regulations

• Voice note capability for efficient field annotations

• USB data export and Insight software integration

• Powered by 3 AA batteries with over 10 hours of operation

• Compliant with ANSI S1.4, IEC61672, ISO9612, OSHA standards

• Single range measurement up to 140 dB

• 2 GB memory capacity

• Available with Class 1 or Class 2 microphone options

• 2-year manufacturer warranty

Applications

Occupational Noise Monitoring

• Workplace noise assessments

• Daily noise exposure calculations

• Hearing protection validation

• Compliance with OSHA 29CFR 1910.95 and ISO9612

Environmental Noise Monitoring

• Community and boundary noise monitoring

• Noise nuisance investigations

• Construction noise studies under BS4142 and Section 61

• Long-term unattended monitoring with environmental kit

Specifications

• Model: CEL-633B1

• Frequency analysis: 1/1 octave bands

• Measurement range: Up to 140 dB

• Memory: 2 GB internal storage

• Audio recording: Up to 60 hours

• Battery: 3 x AA (over 10 hours runtime)

• Display: High-resolution with adjustable data view

• Connectivity: USB output to PC

• Calibration: Compatible with CEL-120 acoustic calibrator

• Warranty: 2 years