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Halo, Saya Pebisnis Saya mengenal produk ini dari https://www.indotrade.co.id dan saya lihat hal ini mungkin berguna untuk anda. ------------------------------------------------------- EXTECH 407750 Digital Sound Level Meter, Telp. 021-60799777 HP. 081215608000 Telp. 021-60799777 HP. 081215608000 * NIST Certificate of Calibration * Auto/ Manual ranging from 30 to 130dB in 6 ranges * Meets ANSI and IEC Type 2 standards * A and C selectable frequency weightings * Fast and Slow selectable response times * Background noise absorber mode for machine noise measurements filters ambient noise * Large 3 1/ 2 digit display with 0.1dB resolution with backlighting and analog bargraph * Electret condenser microphone provides 1.5dB accuracy * Min/ Max plus analog output and tripod mount * Max Hold latches maximum value on display * RS-232 interface for capturing data directly on a PC, optional Windows compatible software * Complete with batteries and carrying case Applications: * Machine noise evaluation * OSHA compliance testing * Community noise measurement * Noise ordinance * PC interface for data collection Spec Summary: Digital Display: 3-1/ 2 digit ( 1900 count) Autorange LCD Bargraph Display: 50dB display range ( 1dB resolution) Measurement Range: 30 to 130dB ( 35 to 130dB for " C " weighting) Resolution: 0.1dB Accuracy: ± 1.5dB@ 94dB for a 1KHz sine wave Microphone: Electret Condensor .24 " ( 6mm diam.) type Frequency Weighting: " A " and " C " type Time Response: Slow/ Fast Sampling Time: updates every 0.5 seconds Measurement Frequency Range: 31.5Hz to 8KHz Analog Output: AC: 0.70Vrms ( full scale) ; DC: 10mVDC/ dB Applicable Standards: IEC 651 Type 2, ANSI S1.4 Type 2 Power Supply: 9V battery, optional AC adapter Dimensions: 10 x 3.1 x 1.5 " ( 256 x 80 x 38mm) Weight: 8.5oz. ( 240g) PD. PERALATAN TEKNIK Jl. Petojo VIY No. 9 Jakarta Pusat Telp. 021-60799777 Mobile. 081215608000 email: alatteknik@ hotmail.com www.peralatanteknik.com Untuk informasi selengkapnya, silahkan ke http://www.indotrade.co.id/tokoalatteknik/3044114
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