Bruel & Kjaer 2231 Modular Precision Sound Level Meter 2 Hz - 70 kHz

Bruel & Kjaer 2231 Modular Precision Sound Level Meter
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Bruel & Kjaer 2231 Modular Precision Sound Level Meter Bruel & Kjaer 2231 Modular Precision Sound Level Meter Bruel & Kjaer 2231 Modular Precision Sound Level Meter
Bruel & Kjaer 2231
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The Bruel & Kjaer 2231 Modular Precision Sound Level Meter 2 Hz - 70 kHz is a type 1 precision instrument. It is ideal for measurements according to the most stringent standards because of the comprehensive construction and extreme accuracy of the instrument. A system of interchangable modules to make different measurements is possible by using the 2231 sound meter. The instrument is compatible with almost any Bruel & Kjaer microphone and extends the measurement capabilities. The 2231 Modular Precision Sound Level Meter derives its many measurement capabilities from a series of interchangeable application modules. Each inserted module loads software that defines the functions of the buttons of the sound level meter. The software loaded still remains in tact when the sound meter is turned off.


Application Modules:
 
  • BZ7100: Integrating Sound Level Meter
    • General purpose integrating sound level meter
    • Three time responses: Fast, Slow, and Impulse
    • Four frequency weightings: A, C, Lin. 10 Hz to 20 kHz, and All Pass

  • BZ7101: Statistical Analyzer
    • Perform statistical analysis on incoming sound signals
    • Two time responses: Fast and Slow
    • Four frequency weightings: A, C, Lin. 10 Hz to 20 kHz, and All Pass

  • BZ7102: "Taktmaximal"
    • Integrating sound level meter with Taktmaximalpegel measuring ability.
    • Three time responses: Fast, Slow, and Impulse
    • Four frequency weightings: A, C, Lin. 10 Hz to 20 kHz, and All Pass

Features:


  • Interchangeable application modules for a variety of measurements
  • Selectable polarization voltage grants the capability of using other microphones in the Bruel & Kjaer family
  • Peak and RMS parallel detection
  • Meets the IEC 804 Type 1 requirements as well as sections from IEC 651 Type 1 and ANSI S1, 4 Type 1
  • 24 dB to 130 dB standard measuring range in 7 over-lapping sub-ranges. (Can be increased to 30 dB to 150 dB with attenuator)
  • Infrarand ultrasound measurments capable by the extra wide all pass frequency
  • Compatible with Bruel & Kjaer Serial Interface MOdule ZI 9101 for external control and communication

Applications:


  • Reverberation time
  • Human vibration
  • Event recording
  • Room acoustics
  • Loudness
  • Building acoustics
  • Statistical analysis
  • Frequency analysis