Application of Low Temperature Damp Heat Test Chamber: This product is an essential testing equipment in aviation, automotive, home appliances, scientific research and other fields, used to test the temperature environment parameters and performance of electronic, electrical and other product materials for high temperature, low temperature, humidity or constant tests.

1、 Product specifications:

Model DHS-225 Internal dimensions D × W × H 500 × 600 × 750: mm

2、 Technical parameters of low-temperature damp heat test chamber:

1. Temperature range: 0 ℃~150 ℃

2. Humidity range: 30% to 98% R.H

3. Temperature fluctuation: ≤± 0.5 ℃

4. Temperature uniformity: ≤ 2 ℃

5. Temperature deviation: ≤± 1.5 ℃

6. Humidity fluctuation:+2, -3% R.H

7. Heating rate: 1.0-3.0 ℃/min

8. Cooling rate: 0.7-1.2 ℃/min

9. Time setting range: 0-9999 hours

10. 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 mixing system adopts a long axis fan motor and a stainless steel multi blade impeller that is resistant to high and low temperatures to achieve strong convection and vertical diffusion circulation;

5. A double-layer high-temperature resistant high tensile sealing strip is used between the door and the box to ensure the sealing of the testing area;

6. Adopting non reactive door handles makes operation easier;

7. The bottom of the machine adopts high-quality fixed PU movable wheels;

8. The observation window is made of multi-layer insulated tempered glass, with a laminated conductive film on the inner side (allowing for clear observation of the test process);

9. The test hole (on the left side of the machine) can be used for external testing power or signal lines (the aperture or number of holes needs to be increased and indicated);

4、 Control system:

1. Adopting the Korean imported "ternary TEMI300" high-precision digital temperature and humidity control instrument, P.I.D high-precision control, to eliminate long-term unstable operation;

2. Humidity is controlled through intuitive display, eliminating the shortcomings of the original temperature and humidity comparison;

3. Accuracy: ± 0.1 ℃ (display range);

4. Resolution: ± 0.1 ℃;

5. Temperature sensor: PT100 platinum resistance tester;

6. Control mode: Thermal balance temperature regulation mode;

7. Electrical control: The main components of the electrical control system use imported "Schneider" and "Merlin Gerin" components to better control temperature;

5、 Heating system:

1. Adopt far-infrared nickel alloy high-speed heating electric heater;

2. A completely independent system for high temperature, low temperature, and humid heat;

3. The output power of temperature and humidity control is calculated by a microcomputer to achieve high-precision and high-efficiency electricity efficiency;

6、 Humidification system:

1. The built-in boiler steam humidifier has energy-saving and consumption reducing functions, which can save 70% of energy consumption;

2. Equipped with automatic water level compensation and multi-channel water shortage alarm protection system;

3. Far infrared stainless steel high-speed heating titanium alloy heater;

4. The humidity control adopts P.I.D+S.S.R, and the system coordinates control with the same channel;

7、 Refrigeration system:

1. Compressor: Fully enclosed French Taikang compressor unit;

2. Cooling method: single machine cooling (air-cooled type);

3. Condensation method: forced air cooling;

4. Refrigerant: R404A R23 (environmentally friendly);

5. The entire system pipeline undergoes a 48 hour leak detection test with ventilation and pressurization;

6. The heating and cooling systems are completely independent;

7. Internal spiral refrigerant copper tube;

8. Fin slope evaporator;

9. American "Aigo" dry filter;

10. Taiwan's "Guanya" oil separator;

11. Italian "Casito" solenoid valve;

8、 Protection system:

1. Overall equipment overheating, overall equipment under phase/reverse phase;

2. Overload of refrigeration system, overpressure of refrigeration system, and overall equipment timing;

3. Other protections include leakage, water shortage, operation indication, automatic shutdown after fault alarm, etc;

9、 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;

10、 Compliant with standards: Designed and manufactured strictly in accordance with relevant standards such as GB/T5170.5-2008, GB/T10586-2006, GB/T2423.1-2008, GB/T2423.3-2006, etc;

11、 Service commitment: Free home delivery. After the installation and debugging of the equipment is completed, relevant technical personnel will receive free operation training at the user's site, with no limit on the number of people.