AWA5661-1A Precision Pulse Sound Level Meter / Noise meter

AWA5661-1A Precision Pulse Sound Level Meter Sound Level Meter AWA5661-1A simple Sound Level Meter, Aiwa portable sound level meter, digital sound level meter type, precision pulse type sound level meter, Ningbo Keno Monopoly love Voices level meter. AWA5661-1A type sound level meter is a digital, modular Sound Level Meter. The instrument uses the latest digital signal processing chip and advanced digital detection technology, high reliability, good stability, wide dynamic range and so on. It can be widely used in various machines, vehicles, ships, electronics and other industrial noise measurement can also be used for environmental noise, labor protection, industrial hygiene measurements. The main features of AWA5661-1A Sound Level Meter: 1. Digital signal processing technology, wide dynamic range, high precision 2. Modular design, on-demand selection, cost-effective 3. wide temperature design, operating temperature range to -15 ℃ to 50 ℃ 4. compliance with IEC 61672: 2002, GB / grade T3785-2010 1 5. The microphone can be ordered with a variety of different measurement ranges. Technical parameters AWA5661-1 Precision Sound Level Meter: (1) A microphone: Φ12.7mm (1/2 ";) test condenser microphone free-field response, a reference point for the center of the diaphragm microphone, they marked in the reference direction called free-field response (2) Frequency range: 10Hz ~ 16kHz, when with AWA14423 or AWA14431 type microphone frequency range up to 10Hz ~ 20kHz dynamic range microphone model A-weighted noise native C-weighted noise the machine dispensed Z-weighted The machine noise measurement limit AWA14425 <17dB (A) <22dB (C) <27dB 140dB AWA14423 <15dB (A) <21dB (C) <25dB 138dB AWA14411 <9dB (A) <14dB (C) <19dB 132dB AWA14435 <37dB (A) <42dB (C) <47dB 160dB (3) frequency weighting: A weighting, C weighting, Z weighting, in free field response, see (4) Time weighting: F (fast), S ( slow), I (pulse), Peak (Peak) (5) detector features: True RMS, digital detector, crest factor ≥10 (6) instrument accuracy: comply with IEC61672 one or GB / level (7) T3785 1 Range control: manual, high, low two tranches, 20dB attenuation of each file, reference level range linear range> 95dB (8) display:. 128 × 64 dot matrix OLED (9) output interface: AC output, DC output, PWM output, After a full charge: RS-232C (10) Calibration: Use a sound level calibrator or pistonphone (11) Power supply: 4 (7 #) alkaline batteries: can work continuously for more than 5 hours optional lithium battery. , can work for more than 16 hours External power supply:. 4.5V ~ 9V, 0.2A Note: When the optional lithium, lithium to be installed to work on (12) Dimensions:. 220 × 68 × 27 (mm) (. 13) quality: 230g AWA5661-1A Sound Level Meter performance indicators: Configure number AWA5661-1A model AWA14423 microphone sensitivity level -28dB Frequency weighting A, C, Z Time weighting F, S, I, Peak frequency range 10Hz ~ 20kHz measurement limit> 138 dB receiver noise <18 dBA standard GB3785 a display 128 × 64 main measure main menu, settings, information output interface AC, DC, RS232 48kHz sampling frequency measuring time integral function no integration without major measure Lp, Lmax, Lpeak statistical analysis indicates that there is no overrun, the limits can not function without storing records and recording function No Operating temperature -15 ℃ ~ 50 ℃ Features bandwidth replace the old model AWA5661A