Mining individual noise dosimeter, environmental industrial pulse noise measuring instrument

Mining individual noise dosimeter, environmental industrial pulse noise measuring instrument

IIexecution standard

1Sound level meter complies with GB/T 3785.12010 2level/IEC 61672-1:2013 Class 2，

2Sound exposure meter meets the requirements GB/T 159522010 /IEC 61252-1:2017，

3The filter complies with GB/T 32412010 2level/IEC 61260-1:2014 Class 2；

4. Explosion proof type: mining explosion-proof

5. Explosion proof mark: Ex ia I Ma

6. Explosion proof certificate number: 23025089B

3、 Technical parameters

(1)Microphone combination: pairing AWA14421Type measurement microphone, nominal sensitivity level:-33.0

dB～-33.9 dB；

note 1: Sensitivity level1 V/PaFor reference 0 dBWhen there is no specific explanation below, all indicators are referred to as sensitivity levels.

note 2: The sensitivity range is controlled within the factory-32.0 dB～-34.0 dBThe measurement range of the instrument will vary with sensitivity

Change through level changes.

(2)Frequency range:20 Hz～12.5 kHz；

(3) 1000 HzSound pressure level measurement range:

AWeighted sound level 51dB～142 dB； CWeighted sound level 51dB～142 dB； ZWeighted sound level 56dB～142 dB； CWeighted peak sound level 68dBC～145 dBC；

(4)Other frequency linear ranges:

31.5 Hz：51dBA～102 dBA；

4kHz：52dBA～143dBA；

8 kHz：51dBA～141 dBA；

12.5 kHz：51dBA～137 dBA；

(5)Local mechanical and electrical noise:≤42dBA，≤42dBC，≤47dBZ；

(6) A/DNumber of digits:24 Position;

(7)Sampling frequency:48 kHz；

(8)Time weighting:FTheSTheI；

(9)Frequency weighting:ATheCTheZ；

(10)Detection characteristics: true effective value, digital detection;

(11)monitor:1.3 inch TFTLCD screen LCDScreen and Resolution:240*240；

(12)Main display content: Real time measurement and display capability 6 More than one measurement index;

(13)Main measurement functions: sound exposure meter, statistical integration

(14)Main measurement indicators:LxypTheLxeq,TTheLxymaxTheLxyminTheLNTheSELTheLex,8hThe

LAVGTheTWATheDOSETheSDTheLxpeakTheNLApeak>120TheNLApeak>130TheNLApeak>140The

gravityXThegravityThegravityZWait;

Note:xfor A，C，Z；yfor F，S，I；Nfor 5，10，50，90，95.

(15)Data Storage: Supports 64 G TFCard;

(16)Output interface:USBInterface4GBluetooth;

(17)Calendar clock: monthly error less than 1 minAfter removing the lithium battery, the clock will be lost;

(18)power supply1 block 3.7 V 1000 mAhLithium battery5V/1AExternal power supply, can be used continuously at most after being fully charged 10 hThe above.

note 1: Test conditions: normal temperature and pressure, only personal sound exposure function is enabled, LCD10sAutomatically turn off the screen.

(19)Measurement time:1 sto 99 hAny setting;

(20)Operating Temperature-10 ℃～40 ℃；

(21)relative humidity20%～90%；

(22)atmospheric pressure65 kPa～108 kPa；

(23)External dimensions（mm）：90×49×64；

(24)Weight: Approximately 119 g.

(25)TFCard large capacity storage function:

a）The measurement results are saved in text file format TFIn the card, these files are available PCnote

This software can be opened directly (externally modified files placed in the instrument will not be recognized);

b）When used USBWhen the interface is connected to the computer, the instrument will TFCard conversion to UPlate.

(26）Recording function:

a)File type:WAVFormat;

b)Sampling frequency:12kHzThe24kHzThe48kHz；

c)Data length:16 Position32 Position;

d)Recording time: unlimited until the memory is full (when recording continuously, the recording file will be split every hour)

Into a file);

e)Replay:PCplay