Smoke density tester

Scope of application:

The touch-screen computer dual-control smoke density tester for building materials was developed according to the technical conditions stipulated in GB/ t8627-2007 "test method for smoke density of burning or decomposition of building materials", which is suitable for the measurement of static smoke production of building materials, their products and other materials.

Conformity: GB/ t8627-2007 test methods for smoke density of burning or decomposing building materials

Standard: GB/T8627 ASTM D2843

Functional features

1. Dual control mode, which can be operated on the touch screen or on the computer, and the operation mode can be switched at will!

2. One device can be operated by several computers at the same time, and several computers can be online at the same time, which can realize LAN sharing!

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

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

Technical parameters

1. Smoke density (MSD) and smoke density grade (SDR) of test pieces: 0-100% continuously measurable and automatically calculated;

2. The correction error of standard reflector shall be no more than 3%; Each equipment is equipped with three standard filters to calibrate the data of the light source, which is representative

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

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

5. Combustion lamp: Bunsen lamp, length 260mm, nozzle diameter 0.13mm, and smoke box into a 45° Angle;

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

7. Exhaust system: the machine is equipped with a powerful exhaust fan. After the test, the exhaust gas can be discharged out of the room.

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

9. Smoke density measurement accuracy: ±3%;

10. Receiver: it is a silicon photocell, with a light transmittance of 0% and 100% respectively.

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

12. Automatic timing, automatic ignition and automatic smoke exhaust; Luminous flux can be divided into phased linear correction test data

A more accurate;

13. Touch display screen:

A. Size: 5 "effective display size length 11cm wide 6.28cm;

B. Resolution: 800*480

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

D. Storage capacity :1G

E. Pure hardware FPGA drive display, "zero" startup time, power on and then run

F. M3+FPGA architecture is adopted. M3 is responsible for instruction analysis

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

14. Gas source: 95% propane gas, or gas of the same purity (customer's own);

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: direct irradiation or reflection of strong light should be avoided when the instrument is working; After 90min 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:

Divided into two parts: smoke box and control;

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