http://WWW.LUTRONMETER.COM
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LUTRON SL-4001, IEC 61672 CLASS 2 SOUND LEVEL METER DIGITAL SOUND LEVEL METER Model : SL-4001 FEATURES * Large LCD display, easy to read. * Max. Hold function for stored the maximum value on display. * Frequency weighting networks are designed to meet the * Warning indicator for over and under load. IEC 61672 CLASS 2. * LCD display for low power consumption & clear read-out even * A & C weighting networks are conformity to standards. in bright ambient light condition. * Time weighting(FAST & SLOW) dynamic characteristic modes. * Used the durable, long-lasting components, including a strong, * AC/DC output for system expansion. light weight ABS-plastic housing case. * Build in adj. VR is available for easy calibration. * Small and light weight design allow one hand operation. * Condenser microphone for high accuracy & long-term stability. * Low battery indicator. SPECIFICATIONS Display 18mm (0.7") LCD (Liquid Crystal Display), 3 1/2 digits. Function dB (A & C frequency weighting), Time weighting(Fast, Slow), Max. hold, AC & DC output. Measurement Range 3 ranges, 30 to 130 dB, input signal only. Resolution 0.1 dB. Accuracy Frequency weighting meet IEC 61672 class 2, calibrating input signal on 94 dB(31.5 Hz to 8 (23 ± 5 ℃) kHz), then the accuracy of frequency weighting is specified as following: 31.5 Hz - ± 3.5 dB, 63 Hz - ± 2.5 dB, 125 Hz - ± 2.0 dB 250 Hz - ± 1.9 dB, 500 Hz - ± 1.9 dB, 1 kHz - ± 1.4 dB 2 kHz - ± 2.6 dB, 4 kHz - ± 3.6 dB, 8 kHz - ± 5.6 dB Characteristics of A & C. Frequency A weighting - The characteristic is simulated as "Human Ear Listing" response. Typical, if making Weighting Network the environmental sound level measurement, always select to A weighting. C weighting - The characteristic is near the "FLAT" response. Typical, it is suitable for checking the noise of machinery (Q.C. check) & knowing the sound pressure level of the tested equipment. Frequency 31.5 Hz to 8, 000 Hz. Calibrator B & K (Bruel & kjaer), multi-fuction acoustic calibrator, model : 4226. Microphone type Electric condenser microphone. Size of microphone 1/2 inch standard size. Range selector 30 to 80 dB, 50 to 100 dB, 80 to 130 dB, 50 dB on each step, with over & under range indicating. Time weighting Fast - t= 200 ms, Slow - t = 500 ms, (Fast & Slow) * "Fast" range is simulated the human ear response time weighting. "Slow" range is easy to get the average values of vibration sound level. Calibration * Build in external calibration VR, easy to calibrate by external screw driver. * Internal oscillation system, 1 KHz sine wave generator. Output Signal AC output - AC 0.5 Vrms corresponding to each range step. DC output - DC 0.3 to 1.3 VDC, 10 mV per dB. Out put impedance - 600 ohm. Output terminal 3.5 mm phone output terminal is provided for connection with analyzer, level recorder, tape recorder. Operating Temp. 0 ℃ to 50 ℃ ( 32 ℉ to 122 ℉ ). Operating Humidity Less than 80% RH Power Supply 006P DC 9V battery(heavy duty type). Power Consumption Approx. DC 6mA. Dimension 205 x 80 x 35 mm ( 8.1 x 3.2 x 1.4 inch). Weight 280 g/0.62 LB (including battery). Standard Accessories Instruction Manual ....................................... 1 PC. Calibration screw driver................................. 1 PC. Optional Accessories 94 dB Sound Calibrator, Model : SC-941. 94 dB/114 dB Sound Calibrator, Model : SC-942. Hard carrying case, Model : CA-06.
http://WWW.LUTRONMETER.COM/lutron-sl-4001-iec-61672-clas/b16
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