Sound Level Meter SL-4001 Lutron Made in Taiwan

Description

Sound Level Meter SL-4001 Lutron Made in Taiwan

Features:

• Large LCD display, easy to read.
• Frequency weighting networks are designed to meet the
  IEC 61672 CLASS 2.
•  Warning indicator for over and under load.
• A & C weighting networks are conformity to standards.
• Time weighting(FAST & SLOW) dynamic characteristic modes.
• AC/DC output for system expansion
• Build in adj. VR is available for easy calibration.
• Condenser microphone for high accuracy & long-term stability. * Low
• Max. Hold function for stored the maximum value on display
• Warning indicator for over and under load
• Used the durable, long-lasting components, including a strong,
  * AC/DC output for system expansion. light weight ABS-plastic housing case.
• Small and light weight design allow one hand operation.
• Low battery indicator.

Specification:

• 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
  Frequency Weighting Network	Characteristics of A & C. A weighting – The characteristic is simulated as “Human Ear Listing” response. Typical, if making 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.