Class 1 Integrating Sound Level Meter CRY2833

Class 1 Sound Measurement for Detailed Noise Assessment

The CRY2833 is designed for applications that require more information than a basic sound-pressure-level reading. It complies with IEC 61672-1:2013 Class 1 and supports a range of acoustic measurement parameters, frequency weightings and time weightings.

The instrument measures across a linear operating range of 25 dBA to 140 dBA. In addition, its internal noise level is specified at no more than 17 dBA. This combination allows the CRY2833 to measure a broad range of occupational, environmental and product noise conditions.

Measurement data can be recorded to a removable microSD card for subsequent analysis and reporting. The standard 32 GB card can also be upgraded to a capacity of up to 64 GB.

Integrating, Statistical and Octave-Band Analysis

The CRY2833 supports integrating measurement, statistical analysis, sound-exposure measurement and monitoring functions. It can calculate parameters including equivalent continuous sound level, peak level, maximum and minimum levels, sound exposure level, occupational noise exposure and statistical noise levels.

Configurable analysis functions include 1/1-octave and 1/3-octave band analysis. However, software functions should be confirmed when specifying the instrument.

These capabilities make the CRY2833 suitable for measurements where engineers need to understand how noise changes over time or across frequency bands, rather than relying on a single instantaneous reading.

Key Features and Benefits

• IEC 61672-1:2013 Class 1 compliance: Supports applications requiring a Class 1 sound level meter.
• 25 dBA to 140 dBA linear operating range: Measures a broad range of sound levels without requiring manual range switching.
• Internal noise level of no more than 17 dBA: Supports the measurement of relatively low-level acoustic environments.
• Integrating measurement: Calculates time-based noise parameters such as Leq for environmental and occupational assessments.
• Statistical analysis: Provides L5, L10, L50, L90 and L95 results for evaluating changing noise conditions.
• Octave-band analysis: Configurable 1/1-octave and 1/3-octave functions help identify the frequency content contributing to a noise problem.
• A, C and Z frequency weighting: Allows measurements to be configured for different acoustic assessment requirements.
• Fast, Slow and Impulse time weighting: Supports the assessment of steady, fluctuating and impulsive noise.
• Integrated data storage: Records measurement data to a removable microSD card for later review and documentation.
• Multiple communication interfaces: AC/DC outputs, USB-C and RS232 support data transfer and connection with other systems.
• Optional wireless or location configuration: The instrument can be configured with Bluetooth/Wi-Fi or GPS, depending on the measurement requirement.
• Portable power options: Operates from four AA batteries or an external 5 V DC or USB-C supply.

Technical Specifications

The specifications and supported measurement functions are published by CRYSOUND for the CRY2833. Configuration-dependent functions should be confirmed before ordering.

Supported Measurement Parameters

Depending on the configured measurement functions, the CRY2833 supports:

• Lp
• Leq,t
• Lpeak
• Leq,T
• Lmax
• Lmin
• SEL
• Lex8h
• LAVG
• TWA
• DOSE
• Ln, including L5, L10, L50, L90 and L95
• SD
• E

Communication and System Integration

The CRY2833 provides AC/DC signal outputs, USB-C and RS232 communications. RS232 communication supports the Modbus protocol, allowing the instrument to exchange measurement information with compatible industrial or monitoring systems.

For wireless communication, the instrument can be ordered with Bluetooth/Wi-Fi connectivity. Alternatively, a GPS configuration is available for measurements requiring location information. Because these are selectable configurations, the required option should be identified before ordering.

Remote-control capability and data storage can also support longer measurement activities where operators need to collect and review results efficiently.

Applications

The CRY2833 can support:

• occupational noise assessments;
• workplace sound exposure measurement;
• environmental noise surveys;
• industrial noise measurement;
• product noise testing;
• product quality-control measurements;
• statistical noise analysis;
• octave-band investigation;
• acoustic testing in laboratories and engineering facilities; and
• noise monitoring and measurement documentation.

CRYSOUND identifies occupational, environmental and product noise measurement as the principal application areas for the instrument.

Options and Configuration Considerations

Before ordering, consider whether the application requires:

• integrating measurement;
• statistical analysis;
• 1/1-octave or 1/3-octave band analysis;
• sound-exposure measurement;
• monitoring functions;
• Bluetooth/Wi-Fi communication; or
• GPS functionality.

The wireless and GPS options are alternative configurations. Therefore, the measurement workflow and data requirements should be reviewed before selecting the instrument.

Why Source the CRY2833 Through Metromatics?

Metromatics can help Australian and New Zealand customers review the CRY2833 against their noise-measurement requirements. This includes discussing the required measurement functions, connectivity configuration, accessories and intended application before quotation.  Contact us today to find out more.