Product Usage: This product is suitable for heat resistance testing of electrical insulation materials, air exchange aging performance testing of electronic components, plasticized products, and rubber products.

1、 Product specifications:
Model HQL-100 internal dimensions D × W × H 450 × 450 × 500: mm
Model HQL-225 Internal dimensions D × W × H 500 × 600 × 750: mm
Model HQL-500 Internal dimensions D × W × H 700 × 800 × 900: mm
Model HQL-800 internal dimensions D × W × H 800 × 1000 × 1000: mm
Model HQL-010 Internal dimensions D × W × H 1000 × 1000 × 1000: mm

2、 Technical parameters:
1. Temperature range: RT+10 ℃~200 ℃, 250 ℃, 300 ℃
2. Temperature fluctuation: ≤± 0.5 ℃
3. Temperature uniformity: ≤ 2 ℃
4. Temperature deviation: ≤± 1.5 ℃
5. Air exchange rate: 3-100 times/h
6. Ventilation time: 1 minute to 99 hours
7. Rotary speed: 1-5 r/min
8. Ventilation method: Instrument controlled automatic ventilation
9. Circulation method: centrifugal fan forced circulation method
10. Time setting range: 0-9999 hours
11. Power requirements: AC380 (± 10%) V/50HZ three-phase five wire system

3、 Box material:
1. The shell is processed and formed using high-quality A3 steel plate CNC machine tools, and the surface of the shell is treated with anti-static spray coating, making it more smooth and beautiful;
2. The inner liner is made of high-quality SUS304 mirror stainless steel plate;
3. The insulation material is high-density glass fiber cotton with a thickness of 100mm;
4. The circulating fan adopts a specially designed air conditioner long shaft type, low-noise, long-life motor, and stainless steel axial flow circulating fan blades;

4、 Control system:
1. The instrument adopts imported dual digit microcomputer PID and At self-tuning high-precision temperature control instrument;
2. Temperature sensor with an accuracy of ± 0.1 ℃, PT100 platinum resistance thermometer with a sampling period of 0.01ms;
3. Ventilation control is automatic instrument control rather than natural ventilation;
4. During automatic ventilation, the instrument sets the ventilation frequency, ventilation time, and stop time to control the driver to open and close the ventilation valve port;
5. The top of the box is equipped with a ventilation outlet, which can be pre adjusted in size;
6. The panel control surface is equipped with ventilation operation display and stop display;
7. Safety protection system: The test chamber is equipped with over temperature, timed, overload protection, and fan overheating protection;

5、 Heating system:
1. Adopt far-infrared nickel alloy high-speed heating electric heater;
2. High temperature and completely independent ventilation system;
3. The temperature control output power is calculated by a microcomputer to achieve high-precision and high-efficiency electricity efficiency;

6、 Protection system:
1. Non fuse protection switch
2. Box overheating protection
3. End of experiment indication
4. Overload and leakage protection include automatic shutdown

7、 Equipment usage conditions:
1. Environmental temperature: 5 ℃ to+28 ℃ (average temperature within 24 hours ≤ 28 ℃)
2. Environmental humidity: ≤ 85% R.H
3. The operating environment requires good indoor ventilation, and no objects should be placed 80 centimeters in front, back, left, right, or right of the machine;

8、 Compliant with standards: Designed and manufactured strictly in accordance with JB/T7444-94 "Air Thermal Aging Test Chamber" and GB/T3512-2001 testing standards;