LA-7700

Sound Level Meter (Class 1)

LA-7700

The LA-7700 Sound Level Meter conforms to various international and domestic standards and is designed to be easily connected to a PC. An SD memory card and USB connector are provided as standard to meet the growing requirements for computer processing of measurement data captured to the LA-7700. Data can be easily read by simply connecting the sound level meter to a Windows based PC, without the need for special software.

    •     High sensitivity type for measurement of small sound in an anechoic room (Self-noise level A: 12 dB or less)
    •     110 dB Linearity Range
    •     Single, Dual or Quad Mode Measurement
    •     1/1 Octave Band Analysis Function (Standard)
    •     Large Screen with Touch Keys for Easy Operation
    •     USB and RS-232C Interface
    •     Supports SD / SDHC Cards

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Specifications

Applicable Standards JIS C 1509-1:2017 Class 1, IEC 61672-1:2013 Class 1, ANSI S1.4-2014 Class 1
Linearity Range Normal Range: 80 dB, Wide Range: 110 dB
Measurement Range A: 20 to 128 dB, C: 28 to 128 dB, Z: 34 to 128 dB
Frequency Weighting A, C, Z
Measured Parameters Lp, Leq, Le, Lpeak, Lmax, Lmin, Ln
Time Weighting Fast, Slow, Impulse, 10 ms
Memory Modes MANUAL (CSV file): standard function, AUTO (instantaneous value, calculated value, CSV file): standard function, LOGGING (instantaneous value, 10 ms or 100 ms, CSV file): standard function, RECORD (WAVE file: 64 kHz sampling: requires LA-0704 (Option)
AC Output 0.707 Vrms (Normal Range), 2.236 Vrms (Wide Range)
DC Output 2.5 V
RS-232C Standard
Power Supply Four AA Batteries or AC Adaptor
Battery Life 12 Hours of Continuous Operation
Operating Temperature Range -10 to +50ÂșC
Operating Humidity Range 20 to 90% Relative Humidity
Dimensions 90 (W) x 279 (H) x 42 (D) mm
Weight Approximately 540 g

Notes

Standard Accessories: AC Adaptor, AX-501 Signal Cable (Mini-Jack to BNC), Windscreen, Hand Strap, Batteries, Carrying Case, SD Memory Card, Users Manual.

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