The M1552TP-1090K is an integrative type general sound level meter that complies with the Measurement Act 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 ●Displays a wide range of 90dB on a large, easy-to-read LCD. ●In addition to the digital display of instantaneous values, it can also display a bar graph, allowing for a more intuitive understanding of sound movement. ■Other Functions ●Standard features include DC output and AC output on the side of the main unit. ●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 RMS Detection Circuit True RMS Detection Circuit (Digital Calculation 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 & 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: Two AA batteries, hand strap, urethane windscreen, storage bag
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