This deviceSuitable for the decomposition smoke density testing machine of building materials. Suitable for building materialsThe determination of static smoke production during combustion of its products can also be used for other purposes Measurement of static smoke production during solid material combustion.

Main technical parameters:

Gas source:95% propane gas, or gas of equivalent purity (to be provided by the customer);

Combustion lamp: a native lamp, length260mm, nozzle diameter 0. 13mm, at a 45 ° angle to the cigarette box;

Optoelectronic system: The light source is a filament dense instrument bulb, with a working voltage5.8V；

Exhaust system: This machine is equipped with a powerful exhaust fan, which can discharge exhaust gas outdoors after testing;

Smoke density measurement range:0~100%；

Accuracy of smoke density measurement:±3%；

Receiver: It is a silicon photovoltaic cell with high transmittance0% means no light passes through, and 100% light transmittance means that light passes through completely without obstruction;

Main burner working pressure:276KPa；

Auxiliary burner pressure:138KPa；

Automatic timing, automatic smoke exhaust; The luminous flux can be automatically calibrated;

Computer control, including a set of transmittance measurement software, can output curve reports, automatically save data, and can be printed;

Verification of transmittance: Using different filters to calibrate the light source online at multiple points, the average of three differences between the displayed value and the calibration value of the filter is calculated<3%；

Data processing: The computer automatically records three parallel experiments, everySmoke density measured in 15 seconds

Calculate the average value and compile it into an integral curve of smoke density and test time, and print out the test report;