Scope of Application

【Operating Instructions】

The Touch Screen Building Material Combustibility Test Furnace features a stainless steel enclosure. It is an upgraded version of the older JCK-2 model, now featuring touch screen control, automated specimen lifting, and adjustable Bunsen burner进退 (advance/retract) functions. It is a high-configuration instrument produced strictly in accordance with the national standard GB8626-2007.(Note: The text in red refers to parameters currently mandatory for acceptance by third-party testing agencies.)

YS-JCK-3 Touch Screen Building Material Combustibility Test Furnace

Scope of Application

The Touch Screen Building Material Combustibility Test Furnace features a stainless steel enclosure. It is an upgraded version of the older JCK-2 model, now featuring touch screen control, automated specimen lifting, and adjustable Bunsen burner进退 (advance/retract) functions. It is a high-configuration instrument produced strictly in accordance with the national standard GB8626-2007.
(Note: The text in red refers to parameters currently mandatory for acceptance by third-party testing agencies.)

The Building Material Combustibility Test Furnace is used to determine the combustibility of building products by directly impinging a small flame on a vertically placed specimen in a normal combustion environment. Utilizing the German Kleinbrenner principle, it is used to determine the combustion performance of Class B building materials (i.e., for the determination/judgment of Class B fire retardant ratings) under direct impingement of a small vertical flame.

Compliance Standards

• ISO 11925-2:2002 E "Reaction to fire tests for building products"

• GB/T 8626-2007 "Reaction to fire tests for building products"

• Note on Wind Speed Device: Section 4.10 of GB8626-2007 lists the wind speed device as optional. However, recent third-party testing agency inspections generally require it. While this device is not included in the initial procurement, it can be added later.

Instrument Features

1. Ergonomic Design: All tests are operated via the touch screen with a high degree of automation. It can store and retrieve past test results.

2. Automated Lifting: Servo motor-driven specimen rack with controllable automatic lifting.

3. Burner Adjustment: The Bunsen burner allows for advance and retract adjustment.

4. Durable Enclosure: Constructed with 1.5mm stainless steel plate.

5. Observation: Features 2 toughened heat-resistant glass doors for dual-angle observation of the test; equipped with locks for convenience and security.

6. Ignition: High-voltage automatic ignition for durable combustion.

7. Tilt Function: The ignition source can automatically tilt to 45°.

8. Flame Control: Flame height is adjusted via a precision regulating valve.

9. Specimen Movement: The specimen rack can be moved up/down and forward/backward.

10. Clamps: Equipped with two types of specimen clamps.

11. Measurement: Includes a flame measurement scale.

12. Performance: High automation, precise experimental data, and ease of operation.

13. Dimensions: W835 × D400 × H815 mm.

14. Material: 1.5mm Stainless Steel.

15. Ventilation: The bottom of the enclosure features a flat natural air inlet composed of 2.5cm × 2.55cm grid vents (genuine 1.5mm thick steel vent, 50mm high) to maintain smooth airflow.

16. Craftsmanship: Fine workmanship with a truly seamless (weld-free) process.

17. Touch Display Specs:

• Size: 7-inch (Effective display: 15.5cm L × 8.6cm W)

• Resolution: 800 × 480

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

• Storage: 1G

• Performance: Pure hardware FPGA drive display with "zero" start-up time; operational immediately upon power-up.

• Architecture: M3 + FPGA architecture (M3 handles command parsing, FPGA focuses on TFT display).

• Power Saving: Main controller uses a low-power processor and automatically enters energy-saving mode.

Technical Specifications

1. Ambient Temperature: 15℃ to 25℃

2. Relative Humidity: ≤ 85%

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

4. Gas Source: Commercial propane with purity ≥ 95%. Liquefied petroleum gas (LPG) can be used for general tests. (Note: Gas source and connection fittings are supplied by the user.)

5. Application Time: The Bunsen burner applies flame to the specimen for 15s.

6. Control: Microcontroller (MCU) control with digital display.

7. Burner Specs: Burner orifice diameter Φ0.17mm; Bunsen burner flame length 20mm ± 1mm; Burner can be tilted 45°.

8. Timing: Flame application time (1s - 99s) ± 0.5s, arbitrarily adjustable, precision ± 0.2s.

9. Fuel: Combustible gas source: Propane with purity > 95%. (Note: Gas source and connection fittings are supplied by the user.)