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Bruel & Kjaer 2231 Modular Precision Sound Level Meter by Advanced Test Equipment Corp
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Product Description
Applications:
Reverberation time
Human vibration
Event recording
Room acoustics
Loudness
Building acoustics
Statistical analysis
Frequency analysis
Features:
Fulfills IEC 804 type 1, relevant sections of IEC 651 type 1 I, and ANSI S1.4-1983 type 1
Easy to read liquid crystal alphanumeric and quasi-analogue display
Selectable polarization voltage allows use of almost any microphone in the Bruel & Kjaer range
RMS and Peak detection in parallel
73 dB Pulse range; 70 dB RMS Linearity range
24 to 113 dB (A) measuring range (30 to 133 dB (A) with attenuator) in 7 overlapping sub-ranges
A, C, Lin. and All-pass weightings
Extra wide all-pass frequency range allows infrasound and ultrasound measurements
Internal memory has back-up battery power which prevents loss of application software and data when the instrument is switched off
Facility for connection of Bruel & Kjaer Serial Interface communication port, allowing external control and output of measurement data
When used with Microphone Type 4133 and Extension Cable AO 0027, fulfills IEC 804 type 0 and relevant section of IEC 651 type 0I
Measurement os Leq and LEA,T (SEL)
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