The M1552TP-1090K is an integrative type general sound level meter that complies with the Measurement Law and is capable of measuring environmental noise, traffic noise, construction noise, and work noise.
■Measurement Performance ●It can simultaneously measure equivalent noise level (Leq), single event noise exposure level (LE), time-weighted noise level (Lx), maximum value (Lmax), and minimum value (Lmin). ●Each calculation result can be read and confirmed with button operations. ■Screen Display ●A large and easy-to-read LCD displays a wide range of 90dB. ●In addition to the digital display of instantaneous values, it can also be shown as a bar graph, allowing for a more intuitive understanding of sound movement. ■Other Functions ●The main unit is equipped with standard DC output and AC output on the side. ●DC and AC signals can be extracted simultaneously.
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Compliance Standards: Measurement Law Ordinary Sound Level Meter Measurement Law Type Approval Number: Pending Linearity Range: 100dB Frequency Range: 20–8000Hz Measurement Range: A-Weighting 30–120dB, C-Weighting 37–120dB, Z-Weighting 43–120dB Frequency Weighting Characteristics: A, C, Z True RMS Detection Circuit: True RMS detection circuit (digital computation method) Level Range: 20–90dB, 20–100dB, 20–110dB, 30–120dB Time Weighting Characteristics: FAST, SLOW Measurement Items: Lp, Leq, LE, Lx (L5, L10, L50, L90, L95), Lmax, Lmin Sampling Period: 25μs (Leq, LE), 100ms (Lmax, Lmin, Lx) Measurement Time: 10 seconds, 1 minute, 5 minutes, 10 minutes, 30 minutes, 1 hour, 8 hours, 24 hours Calibration: Electrical calibration using built-in oscillator (1kHz sine wave) Display Update Time: Numeric: 1s, Bar Indicator: 0.1s
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■Specifications Output terminals AC output terminal: 1Vrms (full scale) DC output terminal: 2.5V (full scale) 0.25V/10dB I/O terminal: RS-232C Power supply and battery life: Two AA batteries, approximately 16 hours (alkaline batteries) Operating temperature and humidity range: 0 to 40°C, 30 to 90% RH (no condensation) Weight: Approximately 280g (including batteries) Dimensions: Approximately 243(H) × 70(W) × 31(D) Included accessories: 2 AA batteries, hand strap, foam windscreen, storage bag
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