Fire Test Equipment

SIGN SMOKE TESTING ASTM D2843 BUILDING MATERIAL SMOKE DENSITY TEST CHAMBER

SIGN SMOKE TESTING ASTM D2843 BUILDING MATERIAL SMOKE DENSITY TEST CHAMBER

JCY-3A touch screen computer dual control building material smoke density tester

1、 Applicable scope:

The JCY-3 touch screen computer dual control building material smoke density tester, developed and produced by Beijing Xinsheng Zhuorui Technology Co., Ltd. and Xunyu Technology Co., Ltd., is developed according to the technical conditions specified in the national standard GB/T8627-2007 "Smoke Density Test Method for Combustion or Decomposition of Building Materials". It is suitable for measuring the static smoke production of building materials, their products, and other materials during combustion.

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2、 Product functional characteristics

1. Dual control mode, can be controlled on the touch screen or on the computer, and the operation mode can be switched freely!

2. A device can be operated by multiple computers simultaneously, and multiple computers can be online simultaneously, achieving LAN sharing!

3. The main and auxiliary burners can rotate automatically and position accurately.

4. Independently developed control programs that can meet various operations, records, time curves, and result calculations in experiments.

3、 Related technical parameters

1. For the maximum smoke density (MSD) and smoke density level (SDR) of the specimen: 0-100% continuously measurable, automatically calculated;

2. Use a standard filter to correct for an error of no more than 3%;

3. Bensheng lamp working pressure (210 ± 5) KPa;

4. Apply flame to the sample using a Bunsen burner for 4 minutes;

5. Combustion lamp: It is a Bunsen lamp with a length of 260mm and a nozzle diameter of 0.13mm, forming a 45 ° angle with the smoke box;

6. Optoelectronic system: The light source is a light bulb, with a power of 15W and a working voltage of 6V;

7. Exhaust system: This machine is equipped with a powerful exhaust fan, which can discharge exhaust gas outdoors after the test is completed;

8. Smoke density measurement range: 0-100%;

9. Accuracy of smoke density measurement: ± 3%;

10. Receiver: It is a silicon photocell, with a light transmittance of 0% indicating no light passing through, and a light transmittance of 100% indicating no obstruction passing through;

11. Working pressure of main burner: 276KPa (adjustable), optional for auxiliary burner;

12. Automatic timing, automatic ignition, and automatic smoke exhaust; The linear calibration test data of luminous flux can be calibrated in stages;

13. Touch screen display:

a. Size: 5 inches, effective display size: 11cm in length and 6.28cm in width;

b. Resolution: 800 * 480

c. Communication interface RS232, 3.3V CMOS or TTL, serial port mode

d. Storage capacity: 1G

e. Using pure hardware FPGA driver display, with "zero" startup time, can run on power

f. Adopting M3+FPGA architecture, M3 is responsible for instruction parsing and FPGA TFT display, with good speed and reliability

g. The main controllers all use low-power processors and automatically enter energy-saving mode

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

15. Length * width * height: 740 * 500 * height 900 (mm)

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4、 Working conditions:

1. Environmental temperature: 0 ℃ -40 ℃;

2. Relative humidity: ≤ 85%

3. Power supply voltage and power: 220V ± 10%, 50HZ, 100W;

4. Gas pressure: 0-0.3MPa (adjustable);

5. Environmental and test requirements: The instrument should avoid direct exposure or reflection of strong light on the instrument during operation; After 90 minutes of testing, the gas source should be turned off to cool the instrument for 15 minutes.

6. Environmental airflow: There is no forced air flow phenomenon during operation;

7. The instrument should be placed in a fume hood for testing;

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5、 Instrument structure:

Divided into two main parts: smoke box and control;

Smoke box section: On the left and right panels of the smoke box, there are power switches, safety sign switches (backlight switches), gas regulating devices, and also switches to control the exhaust fan (fan switch).

6、 Design standard: 

GB/T8627-2007 "Test method for smoke density of combustion or decomposition of building materials"

Compliant with standard: GB/T8627 ASTM D2843

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