Level Meters : Bruel And Kjaer 2231 Level Meter


Bruel And Kjaer 2231 Level Meter
放大图片Bruel And Kjaer 2231 Level Meter

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  • 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)
  • 制造商: Bruel And Kjaer
  • 模型: 2231 Level Meter