CEL-630 (Class 1 & Class 2) S Environment Sound Level Meter
Brand: Casella
Core Measurement Capability
IEC61672 Class 1 and Class 2
20- 140 dB RMS Measurement Range
Octave and 1/3 Octave Analysis
2GB Memory for Long-Term Logging
Key Features
Standards-Based Sound Measurement
Supports IEC61672:2002 Class 1 and Class 2 and ANSI S1.4 Type 1 and 2, making it suitable for professional occupational and environmental noise measurement.
Simultaneous Weightings
Measures Fast, Slow and Impulse time weightings simultaneously, together with A, C and Z frequency weightings for efficient sound data capture.
Octave and 1/3 Octave Analysis
Supports 11 octave bands from 16Hz-16kHz for B and C models, and 33 octave bands from 12.5Hz-20kHz for K models.
Extended Logging Capacity
Includes 2GB memory for more than 1 year of logging at 1 second intervals, supporting 999 runs and long-term monitoring up to 400 days.
Audio Event Recording
Supports 10 hours of high-quality audio recording and 60 hours of low-quality audio recording, with up to 999 events per run.
Simple Multilingual Interface
The interface supports English, French, German, Spanish, Italian, Portuguese, and Chinese for easier field operation across different users.
CEL-630 Technical Specifications
| Standards | IEC61672:2002 Class 1 and 2, ANSI S1.4 Type 1 and 2 (1983) |
| Filters | IEC61260 Class 0, ANSI S1.43 (1996) |
| Standards Note | IEC61672 replaces IEC60651 and IEC60804 |
| Measurement Range | 20-140 dB RMS, 143.3dB peak |
| Total Noise Floor | 19dB(A) Class 1, 25dB(A) Class 2 |
| Time Weightings | Fast, Slow and Impulse simultaneously |
| Frequency Weightings | A, C and Z un-weighted simultaneously |
| Frequency Bands | 11 octave bands 16Hz-16kHz for B and C models / 33 octave bands 12.5Hz-20kHz for K models |
| Amplitude Weighting | Q=3, 4 and 5 simultaneously |
| Back Erase | Last 10 seconds in cumulative mode, all models |
| Timers | Duration 1 second to 24 hours |
| On / Off Timers | 6 sets with selectable times and repeat function |
| Tripod Mount | 1/4" Whitworth socket |
| Batteries | 3 x AA Alkaline, 10-15 hours depending on backlight |
| External Power | 9-14V DC at 150mA |
| Weight | 332g including batteries |
| Size | 230 x 72 x 31mm including preamp and microphone |
| Operating Humidity | 0 to 90% RH without condensation |
| Temperature | -10 to +50°C Class 1 / 0 to 40°C Class 2 |
| Atmospheric Pressure | 65 to 108kPa |
Measured Parameters and Analysis
Broad Noise Parameters
Measures key values including Lxy, Lmax, Lmin, Lavg, Lpeak, LAE, LC-A, Leq, L10, L90, and related workplace dose values calculated within insight software.
Octave and 1/3 Octave Values
Supports octave and 1/3 octave values including Lxy, Lmax, Lmean and 5x Ln% on CEL-633, with frequency weightings A, C or Z and time weightings F, S or I.
CEL-633 Advanced Logging
The CEL-633 model stores 5x L values in broadband and octave modes, plus all parameters for period times and 6 selectable profile parameters.
Memory, Logging and Audio Recording
Long-Term Memory and Logging
- 2GB memory
- More than 1 year logging at 1 second interval
- 999 runs supported
- All parameters stored and accessible via Casella Insight
- Long-term unattended monitoring up to 400 days
Audio Recording and Events
- 999 events per run
- 10 hours audio recording in high quality mode
- 60 hours audio recording in low quality mode
- Daily new run support for unattended monitoring
Audio Quality Options
- Low Quality: 8,000 samples/s at 8bit, 64kb/s, up to 4kHz
- High Quality: 24,000 samples/s at 8bit, 192kb/s, up to 12kHz
Physical, Power and Environmental Details
Portable Field Design
- Size: 230 x 72 x 31mm including preamp and microphone
- Weight: 332g including batteries
- Tripod mount: 1/4" Whitworth socket
Battery and External Power
- Batteries: 3 x AA Alkaline
- Battery runtime: 10-15 hours depending on backlight
- External power: 9-14V DC at 150mA
Environmental Operating Conditions
- Humidity: 0 to 90% RH without condensation
- Temperature: -10 to +50°C Class 1
- Temperature: 0 to 40°C Class 2
- Atmospheric pressure: 65 to 108kPa
Designed for Occupational and Environmental Noise Monitoring
CEL-630 Class 1 & Class 2 helps occupational hygienists, environmental consultants, workplace safety teams, acoustic surveyors, and compliance professionals collect reliable sound level data with advanced analysis, logging, and audio recording capability.
Typical Applications
Occupational Noise Monitoring
Environmental Noise Assessment
Workplace Sound Exposure Analysis
Octave and 1/3 Octave Analysis
Long-Term Unattended Noise Logging
Audio Event Recording
Compliance-Focused Sound Measurement
Industrial Hygiene Noise Evaluation
Portable Field Sound Studies
Professional Sound Trend Reporting
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