Overview
HZAOC GDW-50C low/high temperature test chamber is suitable for the adaptability test of electrical, electronic products, components, parts and materials in high and low temperature environment storage, transportation and use, as well as temperature gradual change test, and stress screening test for electronic components.
Features
1. The box adopts the overall structure, the liner is imported SUS304B stainless steel, the outer wall is sprayed Cold rolled steel plate, and the thermal insulation layer is ultra-fine Glass thermal insulation cotton.
2. The door is double-decked silicone rubber sealing, the observation window is multi-layer conductive film tempered hollow Glass, and is equipped with frost-proof heating wire and lighting.
3. The side of the box is equipped with φ 50mm test hole with silicone rubber plug, which has both thermal insulation and high and low temperature resistance performance.
4. The heater adopts a porcelain frame nickel-chromium wire electric heater with low thermal inertia and long service life, which is controlled by a solid state relay and is stable and reliable.
5. Low temperature refrigeration adopts French "Taikang" fully enclosed Compressor, the core components are imported brands from many countries, and R404A refrigerant is used.
6. Control system with High Accuracy Digital Temperature Controller and PT100 Sensor, accurate control, long-term no drift.
7. Safety protection with multiple, including independent over-temperature protector, and phase loss, overvoltage, overload, leakage and other electrical protection.
8. The air supply method is the upper air supply and the lower air return, and the temperature sensor is placed in a trend to ensure Temperature uniformity.
Principle
The equipment is heated by the electric heater in the air-conditioning cabinet and cooled by the French "Taikang" fully enclosed Compressor refrigeration unit to achieve a high and low temperature environment in the studio. The temperature is monitored and controlled by the High Accuracy digital temperature controller and PT100 Sensor, and the control signal adjusts the heater and the refrigeration system through the solid state relay. The cooling capacity is adjusted by the shunt method. The air flow in the working room is driven by the fan to form a circulation of upper supply air and lower return air to ensure uniform temperature. The system has a perfect protection Safety mechanism to ensure reliable operation.
Applications
Electrical and electronic products, components, parts and materials adaptability test, stress screening test
Standards
GB/T2423.1-2001、GB/T2423.2-2001、GB/T10592-2008、GB/T10589-1989、GB/T11158-1989、IEC68-2-1、IEC68-2-2
Steps
1. Ensure that the equipment is placed in an environment that meets the requirements (room temperature below 28 ° C, well ventilated, and no matter within 80 cm around).
2. Connect the AC380V +/- 10%/50Hz three-phase four-wire power supply.
3. Start the device by pressing the button on the operation panel, and set the required temperature program and Timer Range (0~ 999 hours).
4. Put the sample into the studio and close the sealing door.
5. The equipment starts running, and the heating or cooling process is automatically controlled by a temperature controller.
6. During the test, the internal situation can be observed through the observation window lighting.
7. After the test, remove the sample according to the procedure and turn off the power of the equipment.
Notice
• Equipment Operating Environment Temperature must be between 5 ° C and + 28 ° C, with an average temperature of ≤ 28 ° C within 24 hours.
• Environmental humidity should be ≤ 85%.
• Must use an AC380V +/- 10%/50Hz three-phase four-wire power supply and ensure the correct phase sequence.
• The operating environment should be below 28 degrees and well ventilated.
• No items can be placed within 80 cm of the front, rear, left and right of the equipment placement.
Before operation, it is necessary to confirm that the circulating fan is started normally, otherwise the refrigeration and heating system will not work.
• Pay attention to the status of various protection indicators when the equipment is running, and deal with any faults in time.
• Do not open the door frequently when the equipment is running, so as not to affect the temperature stability and equipment life.
