The CRY2831 focuses on core sound-level measurement. It is a portable Class 2 sound level meter. A 24-bit analogue-to-digital converter samples at 48 kHz, while the display presents Lp and Lmax results. Four AA batteries provide a stated operating time of 24 hours, supporting portable survey and spot-check work.
Key Features and Benefits
- IEC 61672-1:2013 Class 2 accuracy.
- 29 dBA to 138 dBA linear range.
- A, C and Z frequency weighting.
- Fast and Slow time weighting.
- Lp and Lmax measurement parameters.
- AC/DC signal interface for connection to compatible equipment.
- Four-AA-battery operation with stated 24-hour operating time.
Technical Specifications
| Specification | CRYSOUND CRY2831 |
| Applicable standard | IEC 61672-1:2013 |
| Accuracy | Class 2 |
| Linear range | 29 dBA to 138 dBA |
| Frequency range | 20 Hz to 12.5 kHz |
| Microphone | CRY321 (-32 ±2 dBV/Pa) |
| Preamplifier | CRY2830PA |
| Sampling rate | 48 kHz |
| A/D resolution | 24-bit |
| Frequency weighting | A, C and Z |
| Time weighting | F and S |
| Measuring parameters | Lp and Lmax |
| Display | 128 × 64 LCD |
| Battery | 4 × AA |
| Operating time | 24 hours |
| Interface | AC/DC |
| Reference levels | 94 dB at 1 kHz / 114 dB at 1 kHz |
Applications
- Routine workplace noise spot checks
- Machinery and equipment noise checks
- Product noise screening
- General environmental sound-level surveys
- Education and training laboratories
Integration and Configuration Considerations
The CRY2831 includes AC/DC signal output. It is intentionally simpler than integrating and statistical instruments; confirm that Lp and Lmax are sufficient for the intended procedure before selection.
Selecting the Measurement Chain
Accurate acoustic measurement depends on the complete signal chain. Therefore, confirm the microphone field type, sensitivity, dynamic range, preamplifier, connector, cable, constant-current supply, data-acquisition input and calibration method as one system. Metromatics can help review these interfaces before quotation.
Why Source the CRY2831 Through Metromatics?
Metromatics can help Australian and New Zealand customers compare the CRY2831 Portable Class 2 Sound Level Meter with other CRYSOUND measurement options and review the intended sound field, level range, bandwidth, connector and acquisition requirements before quotation.
Contact Metromatics to discuss your application, confirm the correct CRY2831 configuration, obtain additional technical information or request pricing and a quotation.
