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Zhengzhou Wowei Intelligent Instrument Co., Ltd
Statistical analysis of personal sound exposure integral of intrinsic safety sound level meter
NegotiableUpdate on 05/06
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Overview
The statistical analysis of personal sound exposure integral of intrinsic safety sound level meter complies with the relevant provisions of GB/T 3836.1 and GB/T 3836.4 in terms of safety performance. The sound level meter meets the requirements of GB/T 3785.1-2023 and IEC 61672-1:2013 standards for level 1 sound level meters, the filter meets the requirements of GB/T 3241-2010 and IEC 61260-1:2014 standards for level 1 filters, and the personal sound exposure meter meets the requirements of GB/T 15952-2010 and IEC 61252:2017
Product Details
Statistical analysis of personal sound exposure integral of intrinsic safety sound level meter
Statistical analysis of personal sound exposure integral of intrinsic safety sound level meter
2、 Execution standards
1Sound level meter complies withGB/T 3785.12023 Level 1/IEC 61672-1:2013 Class 1；
2. Personal voice exposureCalculate complianceGB/T159522010 /IEC 61252:2017；
3★Having national measuring instrumentsType approval certificate，Batch mark:CPA
4★Explosion proof type:thisQuality safety type, explosion-proof mark is:Ex ib IIB T4 Ga
IIIMain performance indicators
1Microphone combination:AWA14425 measuring microphone and AWA14601DType preamplifier
2★Frequency range:10 Hz～20 kHz；
3★Measuring range:28 dBA～136 dBA；38 dBC～136 dBC；47 dBZ～136 dBZ；
Peak sound level60 dBC～136 dBC.
4Local mechanical and electrical noise: less than22 dBA， less than27 dBC， less than36 dBZ；
5Ａ/D digits: 24 digits;
6Sampling frequency:48 kHz；
7Accuracy level:Level 1;
8Detector characteristics: True RMS digital detection;
9Time weighting: Parallel (simultaneous)F、S、I、I10；
10Frequency weighting: Parallel (simultaneous)A、C、Z，
11monitor:2.4Inch color screen display, resolution240 × 320；
12★Measurement function: Total value pointsStatistics points24 hoursSound exposure level;
13. BasicMeasurement indicators:LxypTheLxeq,T、Lxeq，tTheLxymaxTheLxyminTheLxETheLxpeakTheETheLn、SD、TWA、Lex,8h、LAVG、DOSE、Ld、Ln、Ldn、Linst；
14★Recording function：file typeWAV and MP3 are optional; Sampling frequency 12 kHz、24 kHz、48 KHz optional; The data length can be selected as 16 bits or 24 bits.
15★Sound exposure levelMeasurement indicators:Lp、Lmax、TWA、Lex,8h、LCpeak、LZpeak、Lmin、Leq,T、LAVG、DOSETheE、NLApeak>120dBTheNLApeak>130dB；
16★Data storage:4G internal storage, supporting up to 64GB TF card;
17Output interface:communication、direct currentTheIO expansion port, USB interface;
18power supply4 sectionsCarbon Number 5Sexual batteries,Can work continuouslyMore than 6 hours；5 V/1 A external power supply;
19Measurement time:1 second to 99 hours can be set arbitrarily;
20Operating Temperature-10 ℃～50 ℃Relative humidity:20 %～90 %Air pressure: 65 kPa to 108 kPa；
21shell：adoptC4120 NC anti-static material
22External dimensions（mm）：75 × 33 × 250；
23Weight:about340 g.
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