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MEWOI-TL6868Q Type 2 GB/T3785 IEC61672 Class 2 industrial grade Sound Level Tester
Click to download: MEWOI-6636-0 Type 2 Class 2 industrial grade Sound Level Tester Specification
INTRODUCTION
| MEWOI-TL6868Q Sound Level Meter belongs to Class 2 Sound Level Meter and is suitable for general noise measurement. The instrument has the characteristics of simple operation and low price. It adopts a digital and modular sound level meter. Implementation of GB/T 3785.1-2010 and IEC 61672-1:2013 standards for two-level sound level meter requirements, the sensitivity to radio frequency field belongs to category X. This instrument adopts advanced digital geophone technology. It has the advantages of high reliability, good stability, wide dynamic range and no need of range conversion. It can be widely used in industrial noise measurement of various machines, vehicles, ships and electrical appliances, as well as in environmental noise, labor protection and industrial hygiene measurement. |
FEATURES
1,Permits choice “A”, “C” , “F” weighting and “Fast” / “Slow” response times. |
2,Offers 4 measurement parameters: Lp (sound level); Leq (Equivalent Continuous A Sound Level ); Lmax ( Maximum Sound Level) and LN (Percent of all readings over alarm value set ). |
3,DC output :1 0 m V / d B. |
4,Can memorize 30 groups of measurement results and measuring conditions. |
5,Auto range selection and digital display with no guessing errors. |
6,Use USB/RS-232 data output to connect with PC. |
| 7,Provide Bluetooth data output choice. |
TECHNICAL SPECIFICATION
| Standards | IEC 651.2, ANSI 1.4.2 | |
Paraments Measured | Lp-Sound Level | |
| Leq-Equivalent Continuous A Sound Level | ||
| Lmax-Maximum Sound Level | ||
| LN-Percent of All Reading Over Alarm Value Set | ||
Testing Range | Lp | 30~130dB(A Weighting) |
| 35~130dB(C Weighting) | ||
| 40~130dB(F Weighting) | ||
| Leq | 30~130dB(10Seconds,1Min,5Min,10Min,15Min,30Min,1Hour,8Hours,24Hours) | |
| LN | 0~100% | |
| Resolution | 0.1dB | |
| Accuracy | 1dB | |
| Frequency Weighting | ‘A’/’C’/’F’*(Flat) | |
| Time Weighting | Fast (125 ms)/Slow (1 Second) | |
| Microphone | 1/2 Inch Electret Condenser Type | |
| Memory | 30 Group with Measuring Conditions | |
| Calibration Signal Built in | 94dB at 1k Hz(sinusoidal) | |
| Frequency Range | 20~12,500 Hz | |
| Alarm Value Set | 30~130 dB | |
| Alarm Output | LED Optional Relay Contact(NC) | |
| Indicator | Low Battery Indicator | |
| Power Supply | 4x1.5V AAA Size (UM-4)Battery | |
| External DC Power Supply | 6V,DC,100mA | |
| Dimensions | 236x63x26 mm | |
| Weight | 170 g | |
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 |
| IEC 651.2, ANSI 1.4.2 | Lp , Leq,Lmax , LN | class 2 | A,C,F | F、S | A:30-130dB,C:35-130dB,F(40-130dB) | 128 *64 dot LCD | √ | Analog/Digital |
