Moisture resistant microbial penetration tester

Applicable Scope:

The touch screen computer dual-control building materials smoke density tester is developed according to the technical conditions stipulated in the National standard GB/T8627-2007 "Smoke Density Test Method for Combustion or Decomposition of Building Materials". It is suitable for the determination of static smoke yield of building materials and their products and other materials during combustion.

Standard conformance: GB/T8627-2007 Smoke Density Test Method for Combustion or Decomposition of Building Materials

Standard: GB/T8627 ASTM D2843

Functional features

1. Dual control mode, which can be controlled on the touch screen or on the computer. The operation mode can be changed at will!

2. A device can be operated by several computers at the same time, several computers can be online at the same time, LAN sharing can be achieved!

3. Main and auxiliary burners can rotate automatically and position accurately.

4. Independently developed the control program, which can meet various operation, recording, constant curve and result calculation in the test

Technical parameters

1. For the specimen's smoke density (MSD) and smoke density grade (SDR) : 0-100% can be measured continuously and calculated automatically;

2. Correct the error with standard lens with no more than 3%;

Each device is equipped with three standard filters, which are representative of the data checked by the light source

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

4. Apply flame to the sample by Bunsen burner for 4min;

5. Combustion lamp: it is a Bunsen lamp, 260mm in length, 0.13mm in nozzle diameter, and 45° Angle with the smoke box;

6. Photoelectric system: light source is bulb, power is 15W, working voltage is 6V;

7. Exhaust air system: The machine is equipped with a powerful exhaust fan, which can expel the waste gas out of the room after the test;

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% and a light transmittance of 100% passing through completely without shielding;

11. Main burner working pressure: 276KPa(adjustable);

12. Automatic timing, automatic ignition, automatic smoke extraction;

The luminous flux can be phased linear calibration test data

A more accurate;

13. Touch screen:

A. Size: 5 inches effective display size is 11cm long and 6.28cm wide;

B. Resolution: 800*480

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

D. Storage capacity :1G

E. Use pure hardware FPGA to drive display, "zero" start time, power can be run

F. M3+FPGA architecture is adopted, M3 is responsible for instruction parsing, FPGA focuses on TFT display, and both speed and reliability lead xian's similar solution

G. The main controller adopts low energy consumption processor and automatically enters the energy-saving mode

14. Gas source: 95% propane gas or gas of the same purity (supplied by the customer);

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

Working conditions:

1. Ambient 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: Avoid direct exposure or reflection of strong light to the instrument during operation;

After 90min of the test, the gas source should be turned off to cool the instrument for 15min.

6. Ambient air flow: there is no forced air flow in the working state;

7. The instrument should be put in the fume hood for testing;

Structure:

It is divided into smoke box and control.

Smoke box part: on the left and right sides of the smoke box, there are power switch, safety sign switch (backlight switch), gas regulating device, and a switch to control the exhaust fan (fan switch).