Guizhou Rapid Temperature Rise and Fall Test Chamber (Linear 10 ° C)

1Guizhou rapid temperature rise and fall test chamber (linear 10 ° C)Overview:

Wuhan Andexin manufacturer has designed a fast temperature change test chamber that can achieve a linear temperature change rate of 10 ° C per minute, suitable for reliability testing of electronic products, automotive components, aerospace equipment, etc. in different temperature change environments. The test chamber needs to have high-precision temperature control, rapid temperature rise and fall capability, and stable and reliable performance.

2、 Technical requirements:

1. Temperature change rate: Linear 10 ° C/min (heating and cooling)

2. Temperature range: -70 ° C to+150 ° C

3. Control accuracy: ± 0.5 ° C

4. Temperature uniformity: 2 ° C (under no-load conditions)

5. Load capacity: Customer requirements

6. Internal volumeCustomized according to customer needs (such as 100L, 225L, 500L, 1000L, etc.)

7. Power Requirements：380V AC，50Hz， three-phase five-wire system

8. Operating noise≤ 75dB (A-weighted)

IIIGuizhou rapid temperature rise and fall test chamber (linear 10 ° C)Box structure:

1. Material: The inner box is made of SUS304 stainless steel, and the outer box is made of high-quality cold-rolled steel plate sprayed with anti rust paint.

2. Thermal insulation layer: high-density polyurethane foam, thickness ≥ 100mm, to ensure good thermal insulation performance.

3. Sealing design: Double layer silicone rubber sealing strip ensures the airtightness of the box.

4. Observation window: Double layered tempered glass with heating and frost prevention function.

4、 Heating system: Heating element: Nickel chromium alloy electric heating wire is used, and the power is calculated based on the box volume and temperature rate.

5、 Refrigeration system:

1. Refrigeration method: Mechanical compression refrigeration, using a cascade refrigeration system (high temperature stage+low temperature stage).

2. Compressor: High performance scroll compressor is selected, and environmentally friendly refrigerant (such as R404A) is used for the low-temperature stage.

3. Evaporator: Finned evaporator to ensure efficient heat transfer.

4. Condenser: air-cooled or water-cooled, depending on the customer's site conditions.

6、 Control system:

1. Core controller: 7-10 inch intelligent touch screen, supporting programmable and real-time monitoring.

2. Temperature sensor: High precision PT100 platinum resistor with a resolution of 0.01 ° C.

3. Control algorithm: PID control, supporting adaptive adjustment, ensuring linear thermal speed change rate.

4. Data recording: Built in data storage function, supports USB export.

5. Communication interface: Supports RS485 and Ethernet communication, and can be connected to the upper computer system.

7、 Air circulation system:

1. Fan: Centrifugal fan with adjustable air volume to ensure uniform temperature inside the box.

2. Air duct design: Adopting the air duct structure designed by Anderson manufacturer to ensure uniform air flow.

8、 Security protection system:

1. Over temperature protection: Independent temperature controller, automatically cuts off heating power when overheating occurs.

2. Overcurrent protection: The electrical system is equipped with overcurrent protection devices.

3. Leakage protection: equipped with leakage protection switch.

4. Compressor protection: high and low pressure protection, overheating protection, delayed start.