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MEWOI-JY218B Integral Average GB/T3785 IEC61672 Class 2 industrial grade Sound Level Tester
Click to download: MEWOI-JY218B high Precision industrial grade Sound Level Tester Specification
INTRODUCTION
| MEWOI-JY218B Integral Average Sound Level Meter is a hand-held instrument. Its performance meets the requirements of Class 2 X Time Average Sound Level Meter and Integral Sound Level Meter in National Standard GB/T 3785-2010 and International Standard IEC 61672:2013. This sound level meter is the latest all-digital sound level meter launched by the company. It is light and portable. It is suitable for on-site measurement of noise of mechanical and electrical products, environmental noise, traffic noise, workplace noise and so on. It can also be used for teaching demonstration in Colleges and universities. MEWOI-JY218B integral average sound level meter is an improved product of MEWOI-JY208C sound level meter. It has the function of manual integral average. It is mainly used to measure time weighted sound level, sound exposure level, cumulative percentage sound level, sound exposure and noise dose of various kinds of noise. MEWOI-JY218B Sound Level Meter uses internal memory to save only one integral measurement result, without loss of power. After each measurement, it automatically covers the last result and saves it. It can also print the measurement result on the spot. |
TECHNICAL SPECIFICATION
TECHNICAL SPECIFICATION | |
Applied Standards: | GB/T3785,Class 2; IEC61672,Class 2 |
| Measured and evaluated items | Lp (time weighted sound level) or Lmax (maximum time weighted sound level), Lmin (minimum time weighted sound level), LCpeak (C weighted peak sound level). |
Microphone: | Class 2 industrial measurement microphone, nominal diameter 12.7 mm, free field type frequency response. Nominal pressure sensitivity is 50 mV/Pa (nominal pressure sensitivity level is - 26 dB, reference value is 1 V) |
Frequency | 20 Hz～16 kHz |
Frequency Weightings: | A,C |
Time Weightings: | F(Fast) and S(Slow) |
Measuring Range | A:30-130dB,C:40-130dB |
Threshold Setting Range | 30 dB-130 dB, sound level exceeding the threshold, give the sign of exceeding threshold, and output high level. |
Integration time | Manual control of measurement time in the range of 3 s to 99 h, 59 min and 59 s |
Automatic calibration range | ±4.5dB (reference value is 50mV/Pa) |
Screen | 128 *64 dot matrix liquid crystal display (LCD), with resolution of 0.1dB, has signs of overload, under-range, low battery voltage alarm, over-threshold alarm and so on. |
Analog output | Output jack is 3.5 mm dual-channel headphone jack, minimum load impedance is 10kΩ ---DC logarithmic voltage: The output voltage is logarithmic to the measured sound pressure, and the output voltage per unit sound pressure is 15 mV/dB. ---AC Linear Voltage: The output voltage is linearly correlated with the measured sound pressure, and the output voltage corresponding to the upper boundary of the stage range is 2.0V. |
Digital output | Output connector is DB9 (needle type), RS232 serial communication port, output ASCII code, modulation rate (baud rate) 9600Bd |
Power supply | 2 LR6 (No. 5) batteries, working continuously for 27 hours |
Size | L*W*H210 mm×68 mm×31 mm |
Weight | 210g |
Working Temperature | 0℃～40℃ |
Accessories | Main Unit, External Probe, Screwdriver, Carrying Case (B04),Manual |
Selection Guide
| Model No. | Applied Standards | Measured and evaluated items | Microphone | Frequency Weightings | Time Weightings: | Measuring Range | Screen | Integration | Threshold Setting | output |
| GB/T3785,Class 2; IEC61672,Class 2 | Lp , Lmax , Lmin, LCpeak . | Class 2 industrial measurement microphone, nominal diameter 12.7 mm | A,C | F(Fast) and S(Slow) | A:30-130dB,C:40-130dB | 128 *64 dot matrix liquid crystal display (LCD) | √ | Analog/Digital | |
| GB/T3785,Class 2; IEC61672,Class 2 | Lp , Lmax , Lmin, LCpeak . | Class 2 industrial measurement microphone, nominal diameter 12.7 mm | A,C | F(Fast) and S(Slow) | A:30-130dB,C:40-130dB | 128 *64 dot matrix liquid crystal display (LCD) | √ | Analog | |
| GB/T3785,Class 1; IEC61672,Class 1 | Lp , Lmax , Lmin, LCpeak . | Class 1 industrial measurement microphone, nominal diameter 12.7 mm | A,C | F(Fast) and S(Slow) | A:30-130dB,C:40-130dB | 128 *64 dot matrix liquid crystal display (LCD) | √ | Analog/Digital | |
| GB/T3785,Class 1; IEC61672,Class 1 | Lp , Lmax , Lmin, LCpeak . | Class 1 industrial measurement microphone, nominal diameter 12.7 mm | A,C | F(Fast) and S(Slow) | A:30-130dB,C:40-130dB | 128 *64 dot matrix liquid crystal display (LCD) | √ | Analog | |
| GB/T3785,Class 2; IEC61672,Class 2 | Lp , Lmax , Lmin, LCpeak . | Class 2 industrial measurement microphone, nominal diameter 12.7 mm | A,C | F(Fast) and S(Slow),Impulse | A:30-130dB,C:40-130dB,Z: 45dB～130 dB | 128 *64 dot matrix liquid crystal display (LCD) | √ | √ | Analog/Digital |
| GB/T3785,Class 1; IEC61672,Class 1 | LP、Leq、LAE、L5、L10、L50、L90、L95、Lmax、Lmin、LCpeak、ＥA | Class 1 industrial measurement microphone, nominal diameter 12.7 mm | A,C,Z | F,S,I | A:30-130dB,C:40-130dB,Z: 45dB～130 dB | 128 *64 dot matrix liquid crystal display (LCD) | √ | √ | Analog/Digital |
 MEWOI-6636-0 | GB/T3785,Class 2; IEC61672,Class 2 | Lp、Lmax | class 2 | A | F、S | 35~130 dBA | 3 1/2 LCD | Analog/Digital | ||
 MEWOI-6636-1 | GB/T3785,Class 2; IEC61672,Class 2 | Lp、Lmax | class 2 | A,C,Z | F、S | 35~130 dBA | 128 *64 dot matrix liquid crystal display (LCD) | √ | Analog/Digital | |
 MEWOI-6636-2 | GB/T3785,Class 2; IEC61672,Class 2 | Lp、Lmax、Lmin、SEL、E、Leq,T、Tm | class 2 | A,C,Z | F、S | 35~130 dBA | 128 *64 dot matrix liquid crystal display (LCD) | √ | √ | Analog/Digital |
 MEWOI-6636-3 | GB/T3785,Class 2; IEC61672,Class 2 | Lp、Leq1s、Lmax | class 2 | A,C,Z | F、S、I | 35~130 dBA | 128 *64 dot matrix liquid crystal display (LCD) | √ | √ | Analog/Digital |
 MEWOI-6636-4 | GB/T3785,Class 2; IEC61672,Class 2 | LFp、LSp、LIp、Leq,t、Lpeak、Leq,T、LFmax、LFmin、LSmax、LSmin、LImax、LImin、SEL、Lex8h、LAVG、TWA、DOSE、L5、L10、L50、L90、L95、SD、E. | class 2 | A,C,Z | F、S、I、Peak | 35~130 dBA | 128 *64 dot matrix liquid crystal display (LCD) | √ | √ | Analog/Digital |
