Test Index: Optical density (OD) and specific optical density (DS) of the smoke

Measuring Principle: Lambert - Beer Law

Measuring Method: The smoke density is expressed by the fraction of the light transmittance of smoke in the initial light transmittance measured by the optical system. Calculating the maximum specific optical density by the minimum percentage of light transmission.

Standards:

IEC 61034 -1~2 - 2013

GB/T17651.1~2-1998

Burning device:

1.Use the long pole ignition devices to ensure the testing personnel's safety; stainless steel flame testing machine stand allocated with an automatic sample fixture.
2.Stainless Steel Alcohol Tray:
   Internal Dimensions of the Bottom: 210mm*110mm
   TopInternal Dimensions: 240mm*140mm
   Height: 80mm

Optical System:

1.Use the restructured optical system light source which is imported by Germany

2.The light receiver is made of imported high-resolution batteries

3.Tungsten Quartz Halogen Lamp: Voltage: DC 12V; Power: 100W

4.Nominal Luminous Flux: 2000lm ~ 3000lm

5.Nominal Color Temperature: 2800K ~ 3200K

6.Lens Beam: 1.5m ± 0.1m (adjustable)

7.Optical receiver composed of imported high-resolution silicon photocells

8.Test Software: Smoke density DAQ test software, optical path calibration system, 0 and 100% point calibration, desktop computer operation

9.Standard Fan: Fan shaft height 200 ~ 300mm; Blade diameter 300 ± 60mm; Air volume 7 ~ 15m³/min)

• Control cabinet dimensions: 600mm(W)×600mm(D)×1600mm(H)
• Power supply: AC 220V, 50/60Hz, 1A
• Test chamber dimensions: 3m×3m×3m(prepared by users)