Touch Screen Smoke Density Tester is the testing equipment measuring the smoke generated when the cable or optical cable is placed horizontally and burn under definite fire resource in the specified condition (3m3 chamber required by IEC 60134).

Touch Screen Smoke Density Testeris the testing equipment measuring the smoke generated when the cable or optical cable is placed horizontally and burn under definite fire resource in the specified condition (3m3 chamber required by IEC 60134). This equipment is important to measure the smoke generation form the value of light source penetration through the smoke generated when the cable exposed to the specified standard fire source (ethanol 90±1%, methanol 4±1% and distilled water 6±1%) 1L ± 0.01L is burned.

BS 6853 Appendix D

GB / T 17651-1 & 2

IEC 61034-1 & 2

1. The box is composed of a cubic shell with a length, width and height of 3000mm ± 30mm. The internal material of the box: SUS 304 stainless steel, filled with calcium silicate fireproof material, and the outside is a special material.

2. All internal tools are made of stainless steel, which is beautiful and corrosion resistant.

3. The total area of the vent hole is 50cm2 ± 10cm2, which has been opened during the test.The height of the baffle is 1000mm.

4. Equipped with wire and cable test racks and hanging weights according to standard requirements.

5. The door of the test box comes with glass observation windows on opposite sides, and sealed and transparent windows (minimum 100mmx100mm) are installed, which can transmit the horizontal optical measurement of the light of Nai Tong. 2150mm ± 100mm high from the ground.

6. The photocell and light source are placed in the center of the windows of the two walls without physical contact.

7, air duct and wind speed calibration device, auxiliary star speed wind duct and related agencies used to calibrate the fan air volume.

Smoke density test system:

1. Light source of Touch Screen Smoke Density Tester: Halogen lamp with clean crystal bulb and aluminum wire: 2900K color temperature; power 100W, DC12V, nominal luminous flux 2000lm ~ 3000lm.

2. Imported silicon photocell module from the United States: test the attenuation of light caused by smoke; the load resistance of the photocell does not exceed 100Ω. The input impedance of the recorder is 10,000 times greater than the load resistance of the photocell, and the accuracy of the linearity of the transmittance is ± 1%.

3. The optical density measurement range is 0% ~ 100%.

4. Install various filters to prove that the luminous flux is suitable for changing and testing the density of smoke emitted from the light source to the position of the light source.

5. The support system is used to install a special smoke density light source and an imported high-resolution photocell receiver on the external wall.

6. The laboratory is equipped with door and window sealing structure.

7. The light source of Touch Screen Smoke Density Tester is equipped with a standard power of 100W, a standard voltage of DC 12V, a standard light speed of 2000lm ~ 3000lm, and a standard color temperature of 2,800K ~ 3,200K.

8. Optical path calibration system: One-click 5-level automatic calibration 0%, 25%, 50%, 75%, 100% stepless automatic calibration.

9. The heating system of Touch Screen Smoke Density Tester is installed in the box to quickly reach the specified temperature (25 ° C ± 5 ° C).

10. Computer-based measurement and control system. Chinese menu prompts and operations can display curves.

11. The test room should have an air exhaust port and the indoor exhaust air volume is 7-15 cubic meters per minute.

Combustion source:

1. Ethanol 90% ± 1%; methanol 4% ± 1%; water 6% ± 1%.

2. The alcohol combustion box is 100mm ± 10mm from the ground.

Control System:

1. Computer control system, Labview special test software. The artificial intelligence of the control interface makes the interface comfortable.

2. The accuracy of the power supply regulator is ± 0.01V.

3. The system can auto-ignite and auto-time.

4. The experimental data is automatically stored and can be freely queried.

5. The system has timing reminder function.

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