Digital Sound Level Meter Dealers in Delhi

FEATURES   * Large LCD display, easy to read. * Hold & Memory record ( max., min. )* Frequency weighting networks are designed to meet * Condenser microphone for high accuracy & stability.IEC 61672 type 2. * Peak Hold function for stored the maximum value.* Auto range & mamual range. * Warning indicator for over and under load.* A & C weighting networks are conformity to standards. * LCD display for low power consumption & clear read-* Fast & Slow dynamic characteristic modes. out even in bright ambient light condition.* AC output for system expansion. * Used the durable, long-lasting components, including* RS232 computer interface. a strong light weight ABS-plastic housing case.* Build in adj. VR is available for easy calibration. * Compact and light weight plastic housing.SPECIFICATIONSDisplay 52 mm x 32 mm LCD (Liquid Crystal Display), 5 digits.Function dB (A & C frequency weighting), Time weighting(Fast, Slow), Hold, Memory ( max. &min. ), Peak hold, AC & RS232 output.Measurement Range 30 – 130 dB.Resolution 0.1 dB.Accuracy Frequency weighting meet IEC 61672 type 2, calibrating input signal on 94 dB(31.5 Hz to(23 5 蚓) 8 kHz), then the accuracy of A weighting is specified as following:31.5 Hz – ± 3 dB, 63 Hz – ± 2 dB, 125 Hz – ± 1.5 dB250 Hz – ± 1.5 dB, 500 Hz – ± 1.5 dB, 1 kHz – ± 1.5 dB,2kHz – ± 2 dB, 4 kHz – ± 3 dB, 8 kHz – ± 5 dB.Characteristics of A & C.Frequency A weighting – The characteristic is simulated as “Human Ear Listing” response. Typical, ifWeighting Network making the environmental sound level measurement, always select to Aweighting.C weighting – The characteristic is near the “FLAT” response. Typical, it is suitable forchecking the noise of machinery (Q.C. check) & knowing the soundpressure 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 Electric condenser microphone.Size of microphone 1/2 inch standard size.Range selector Auto range : 30 to 130 dB.Manual range : 3 range, 30 to 80 dB, 50 to 100 dB, 80 to 130 dB, 50 dB on each step, withover & under range indicating.Fast – t= 200 ms, Slow – t = 500 ms,Time Weighting * “Fast” range is simulated the human ear response time weighting.(Fast & Slow) “Slow” range is easy to get the average values of vibration sound level.* The “Fast” & “Slow” time weighting range are designed to IEC 651 type 2 requirement.Output Signal * AC output – AC 0.5 Vrms corresponding to each range step.Output impedance – 600 ohm.* RS232 output.Out terminal Terminal 1 : RS232 computer interface terminal.Terminal 2 : AC output terminal.* Terminal socket size : 3.5 mm dia. phone socket.Calibration VR Build in external calibration VR, easy to calibrate on 94 dB level by screw driver.Operating Temp. 0 ℃ to 50 ℃ ( 32℉ to 122℉ ).Operating Humidity Less than 80% RH.Power Supply 006P DC 9V battery ( Alkaline or heavy duty type ).Power Consumption Approx. DC 6mA.Dimension 268 x 68 x 29 mm ( 10.6 x 2.7 x 1.1 inch).Weight 295 g/0.65 LB.Standard Accessories Instruction Manual ………………………………………..1 PC.Optional Sound Calibrator, model : SC-941 ( 94 dB ). SC-942 ( 94dB, 114 dB ).Carrying case : CA-06RS232 cable, Model : UPCB-02Application software, Model : SW-U801-WIN

Digital Sound Level Meter, Universal Computerized Testing Machin

Digital Sound Level Meter / Lutron-Sl-4010 / SL4030 / SL-400