Bruel & Kjaer 2231 Sound Level Meter
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Bruel & Kjaer 2231 is a Type 1 precision sound level meter with interchangeable modules, 2 Hz–70 kHz range, and simultaneous peak and RMS detection.
Product details
| Model | 2231 |
| Manufacturer | Bruel & Kjaer |
| Category | Sound Level Meters |
| Availability | Made to order |
Description
Overview
The Bruel & Kjaer 2231 is a modular precision sound level meter designed for comprehensive acoustical measurements according to the most stringent international standards. The instrument features a modular architecture with interchangeable application modules that expand measurement capabilities. Each module loads software that defines the instrument's functions, maintaining compatibility with Bruel & Kjaer microphone systems.
Key Features
- Type 1 precision classification (IEC 804, IEC 651, ANSI S1.4)
- Frequency range: 2 Hz to 70 kHz
- Measuring range: 24 dB to 130 dB (expandable to 30–150 dB with attenuator)
- Peak and RMS parallel detection for simultaneous measurements
- Interchangeable application modules for diverse measurement applications
- Selectable polarization voltage for compatibility with multiple microphone types
- Extra-wide all-pass frequency response for infrasound and ultrasound capability
- Compatible with Bruel & Kjaer Serial Interface Module ZI 9101 for external control
Applications
- Environmental noise monitoring and assessment
- Occupational noise measurement and compliance testing
- Acoustic research and development
- Frequency analysis of sound sources
- Infrasound and ultrasound measurements
Specifications
| Type Classification | Type 1 Precision (IEC 804, IEC 651, ANSI S1.4) |
| Frequency Range | 2 Hz to 70 kHz |
| Measuring Range | 24 dB to 130 dB (extendable to 30–150 dB with attenuator) |
| Detection | Peak and RMS parallel detection |
| Architecture | Interchangeable application modules |
| Polarization Voltage | Selectable for multiple microphone compatibility |
| Interface | Compatible with Bruel & Kjaer Serial Interface Module ZI 9101 |
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Bruel & Kjaer 2231 Sound Level Meter
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