Introduction of mine dust detector
Mine dust detector The instrument for measuring dust concentration in ambient air is suitable for rapid detection of coal dust and other dust in industrial and mining industries. It can accurately and timely reflect the quality of respirable dust inhaled by dust exposed personnel and the dust pollution status in different dust workplaces. It provides reliable data for accurate evaluation of the health status of the workplace. The instrument has compact structure and simple operation It has the advantages of large load and negative pressure, automatic timing sampling, stable flow rate, full Chinese LCD display, easy to carry and so on.
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Mine dust detector It is used for dust control monitoring, health quarantine testing, environmental protection testing (pollution source investigation), Municipal Tobacco Monitoring, scientific research, on-site factory environment, workshop dust concentration measurement, exhaust port dust concentration monitoring, temporary on-line dust removal / granulation process research total concentration detection, total dust and respiration in coal mine underground workplace Dust, coal dust, flour workshop environment detection, coal powder production workshop, etc.
(1) the rated working current is small, which greatly reduces the burden of substation power supply, and can be installed at a location far away from the substation. Under the condition of rated sampling flow < -- Chongqing -- > the rated working current of the whole machine is ≤ 120mA, and the large working current is ≤ 180mA;
(2) the input voltage range is wide, which can be applied to all kinds of substation in coal mine. The instrument can work normally in the range of input voltage 12V ~ 24VDC (intrinsically safe power supply);
(3) high measurement accuracy: the segmented control algorithm is adopted, and different proportional coefficients are automatically calculated according to different concentration. At the same time, the temperature compensation function is added to improve the measurement accuracy;
(4) it has the function of automatic calibration of zero point, and can set the time of calibration zero drift;
(5) it has the function of soft start mode, which reduces the impact on the power supply when the instrument starts, and the large starting current is less than or equal to 130mA;
(6) it has the function of online calibration, which can be calibrated by ccgz-1000 direct reading dust detector;
The measuring range can be set at 1000-0 mg / m3 or 500 mg / m3;
(8) instantaneous dust concentration or average dust concentration can be measured, and the measurement time of average dust concentration can be selected from 1 to 3600 seconds.