Level Meters : Bruel And Kjaer 2231 Level Meter

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 L_eq and L_EA,T (SEL)

• Fabricantes: Bruel And Kjaer
• Modelo: 2231 Level Meter