401B Natural Ventilation Aging Test Chamber
I. Overview
The Yangzhou Jingzhuo 401B Natural Ventilation Aging Test Chamber is suitable for high polymer materials (plastics, polymers) and electrical insulation materials such as wire and cable sheaths, heat shrinkable sleeves, rubber sheets, or PVC materials, etc., for testing their heat resistance. It can also be used as a high-temperature precise constant temperature drying oven for drying, baking, and heat treatment of items.

Section II: Reference Standards
GB/T2951.12-2008 "General Test Methods for Insulating and Sheathing Materials of Cables and Optical Fibers, Part 12: General Test Methods - Heat Aging Test Box Method," VDE, JIS, and other testing requirements.
Section 3: Main Parameters of the Natural Ventilation Aging Test Chamber
1. 304 Stainless Steel Workbench: 450×450×500mm (Length×Width×Height)
2. Inner Structure: Bilateral porous ventilation channels, bottom plate diffused air intake plate, double-layer stainless steel partition, ensuring uniform temperature distribution.
3. External door glass observation window, easy to observe; observation window.
4. The internal lighting allows for easy observation of sample changes during testing.
5. Equipped with double-insulated glass doors to minimize temperature loss and ensure equipment accuracy.
6. The box contains a test sieve with a standard sieve aperture test tray
7. Dimensions: 770×920×1350 mm (Depth x Width x Height), with removable casters.
8. Working Voltage: 220V/50Hz

Section 4: Temperature Control and Insulation System of Natural Ventilation Aging Test Chamber
1. Equipped with an intelligent P.I.D. temperature controller and a high-precision PT100 thermocouple sensor. Ensures temperature fluctuations within 0.5% (based on temperature calculation).
2. Heater: Coiled tube heater, Power: 2.0 kW
3. Temperature Range: Room Temperature +10℃ to 300℃
4. Temperature fluctuation: ±1℃
5. Temperature Uniformity: ±1%℃
6. Features over-temperature protection that automatically shuts off and stops heating upon overheating, effectively safeguarding the equipment
7. Room temperature to 200℃ (national standard test temperature range)
5. Safety Exhaust System for Natural Ventilation Aging Test Chamber
1. Natural ventilation system to ensure uniformity in temperature.
2. Adjustable ventilation exhaust outlets: Easily adjust the ventilation volume by changing the size of the exhaust outlet.
3. Airflow adjustment range: 8~20 times/hour.
Timer: adjustable from 0-99H 99M.
5. Ventilation Method: Natural Ventilation
6. Standard with 5 top natural ventilation holes