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LD-3 laser dust monitor the apparatus is suitable for public places of inhalable particles ( PM10 ) concentrations of rapid determination, industrial and mining enterprises in the production field of labor hygiene dust concentration detection, as well as the field of environmental protection of respirable dust concentration monitor, can also be used for air purifier efficiency evaluation. In recent years, there are more than 1000 LD-3 type instrument in use throughout the country, users receive praise.

Apparatus in line with the Ministry of health WS/T206-2001 " public places air PM10 ( PM10 ) - Method for determination of light scattering method " LD98-1996 " standard, Ministry of labor and concentration of dust in the air of the light scattering method for determination of standards and the Ministry of Railways " TB/T2323-92 " railroad workplace air determination of dust in the instrument relative mass concentration and mass concentration conversion method " and other industry standards and the Ministry of health health supervision ( 2006 ) sent 58 files are promulgated the " implementation of centralized air ventilation system in public places sanitary specification ".

Main features:

can direct reading of mass concentration of particulate matter ( mg/m3 ), 1 minutes a result according to the needs of the user, or arbitrary sampling time;

·rapid measurement, accurate, high detection sensitivity;

design since the school system, equipment performance is stable and reliable;

It has a gas curtain shield and a clean gas self cleaning function, ensure that the optical system from being polluted;

Realizing the software of automatic zero adjustment;

having a computer with two-way communication function, PC through the data processing, print out the curves and tables;

having particulate matter concentration continuous monitoring, regular sampling and dust concentrations exceed the standard alarm functions;

Main technical index

Detection sensitivity: low sensitivity 0.01mg/m3;

High sensitivity 0.001 mg/m3;

Measuring range: low sensitivity of 0.01～ 100 mg/m3;

High sensitivity 0.001～ 10 mg/m3;

Determination of sampling time: standard time is 1 minutes, with 0.1, 1, 2, 5, 10 minutes, and when the transfer gear ( arbitrary sampling time);

Repeatability error:± 2%;

Measurement accuracy of±10%:

Display screen with Mark 4: liquid crystal display;

Storage: storage data of 99 groups;

Timing sampling: can be set from 1 to 9999 seconds time measurement and sampling frequency of 1 ~ 9999 times

Output interface: PC machine communication interface ( RS232 ) and printer output interface

Environment temperature: 0℃ ~ 40 ℃( storage temperature - 20℃ ~ 60 ℃)

Power source: AC / DC, with rechargeable batteries and charger

Size: 192 x 69 x 140 mm

Weight: 1.4Kg