Scope of Application

【Operating Instructions】

The YS-3 Building Material Smoke Density Tester is developed according to the technical requirements stipulated in the National Standard GB/T 8627-2007 "Test method for smoke density of building materials during combustion or decomposition."

YS-3 Touch Screen Building Material Smoke Density Tester

【Compliance Standards】The YS-3 Building Material Smoke Density Tester is developed according to the technical requirements stipulated in the National Standard GB/T 8627-2007 "Test method for smoke density of building materials during combustion or decomposition."

【Instrument Features】Compared to previous instruments that utilized single-chip microcomputer (MCU) technology, this product offers the following advanced features:

1. Dual Control System: Operation can be performed via the touch screen or a computer, with the ability to switch modes freely. One device can be operated by multiple computers simultaneously, supporting multi-terminal online access and LAN sharing.

2. Automatic Rotation: The main and auxiliary burners can rotate automatically with precise positioning.

3. Calibration: Each device is equipped with three standard optical filters, ensuring representative and accurate data for light source calibration.

4. Design: The instrument features a reasonable structural design, easy operation, and convenient maintenance. It is suitable for determining the static smoke production of building materials, their products, and solid materials during combustion.

【Technical Specifications】

1. Maximum Smoke Density (MSD) & Smoke Density Rank (SDR): 0-100% continuous measurement with automatic calculation.

2. Calibration Accuracy: Error using standard optical filters is not greater than 3%. (Equipped with three standard filters for representative calibration).

3. Bunsen Burner Working Pressure: (210 ± 5) KPa.

4. Flame Application Time: 4 minutes.

5. Burner Type: Bunsen burner, length 260mm, nozzle diameter 0.13mm, angled at 45° to the smoke chamber.

6. Photoelectric System: Light source is a 15W bulb with a working voltage of 6V.

7. Exhaust System: Equipped with a powerful exhaust fan to discharge waste gas outdoors after the test.

8. Measurement Range: 0 ~ 100%.

9. Measurement Accuracy: ±3%.

10. Receiver: Silicon photocell. 0% transmittance indicates no light passes through; 100% transmittance indicates light passes through completely without obstruction.

11. Main Burner Working Pressure: 276 KPa (adjustable).

12. Automation: Features automatic timing, automatic ignition, and automatic exhaust. The luminous flux can be linearly corrected in stages to ensure more accurate test data.

13. Touch Display Screen:

• Size: 5-inch (Effective display area: 11cm L × 6.28cm W).

• Resolution: 800 * 480.

• Communication Interface: RS232, 3.3V CMOS or TTL, Serial port mode.

• Storage Capacity: 1G.

• Drive Technology: Pure hardware FPGA drive display with "zero" start-up time; runs immediately upon power-up.

• Architecture: M3 + FPGA architecture. The M3 processor handles instruction parsing, while the FPGA focuses on TFT display, offering superior speed and reliability compared to similar solutions.

• Power Saving: Main controllers use low-power consumption processors and automatically enter energy-saving mode.

14. Dimensions (LWH): 740 * 500 * 900 (mm).

【Operating Conditions】

1. Ambient Temperature: 0℃ - 40℃.

2. Relative Humidity: ≤85%.

3. Power Supply: 220V ±10%, 50Hz, 100W.

4. Combustible Gas: Propane with purity ≥85% or gas of equivalent purity (supplied by the customer).

5. Gas Pressure: 0 - 0.3 MPa (adjustable).

6. Environment & Test Requirements:

• Avoid direct sunlight or reflections shining on the instrument during operation.

• After 90 minutes of testing, the gas source should be turned off to allow the instrument to cool down for 15 minutes.

7. Airflow: No forced air movement during the working state.

8. Installation: The instrument should be tested inside a fume hood (ventilation cupboard).