Overview
HZAOC GDW-500A low/high temperature test chamber is suitable for 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 of electronic components.
Features
1. The box adopts the overall structure, the liner is imported SUS304B stainless steel, the outer wall is sprayed with Cold rolled steel plate, and the thermal insulation layer is ultra-fine Glass thermal insulation cotton.
2. The door is made of double-decked silicone rubber sealing material, which has good sealing performance.
3. The observation window is a multi-layer conductive film tempered hollow Glass, with anti-frost heating wire and lighting.
4. The side of the box is equipped with a 50mm test hole with a silicone rubber plug, providing both thermal insulation efficiency.
5. The heater adopts porcelain frame nickel-chromium wire electric heater, which has little thermal inertia, long service life and stable control.
6. Low temperature refrigeration adopts French "Taikang" fully enclosed Compressor and uses R404A refrigerant. Miscellaneous key refrigeration components are internationally renowned brands.
7. Temperature control using High Accuracy Digital Temperature Controller and PT100 Sensor, accurate and stable control.
8. Control system has a comprehensive Safety protection measures, including phase loss, overtemperature, overload, leakage and other multiple protection, and has an independent overtemperature protector.
9. The air supply method is the upper air supply and the lower air return, and the temperature is uniform.
10. Control system is equipped with interlocking devices to improve the safety of equipment operation.
Principle
The equipment is forced to agitate the air in the box through the evaporator (refrigeration), electric heater (heating) and circulating fan in the air conditioning cabinet to form an air circulation of the upper supply air and the lower return air, so that the temperature of the studio is uniform. The temperature sensor detects the trend temperature and feeds the signal back to the High Accuracy digital display temperature controller. The temperature controller outputs the control signal through PID operation, and controls the electric heater to work through the solid state relay respectively, or adjusts the operation of the refrigeration unit through the Control system (using the shunt method to adjust the cooling capacity), so as to achieve accurate control of the temperature in the box and simulate the required high and low temperature environment.
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 there is nothing within 80cm around) and connect the AC380V three-phase four-wire power supply.
2. Start the device through the power button on the operation panel.
3. According to the needs, set the test temperature Linear dispersion, time and other parameters through the temperature controller.
4. Put the sample into the studio and close the box door to ensure sealing.
5. Start the test program, and the equipment starts to perform high and low temperature cycle tests as set.
6. During the test, the sample status can be checked through the observation window and lighting.
7. After the test, the equipment stops running according to the program and the sample is taken out.
8. Power off the device.
Notice
• Equipment Operating Environment Temperature should be between 5 ℃~ 28 ℃, 24-hour average temperature ≤ 28 ℃.
• Environmental humidity should be ≤ 85%.
• Must use AC380V (+/- 10%)/50HZ three-phase four-wire power supply.
• 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.
• Equipment with a variety of Safety protection, when the fault indicator light is on, it should be checked in time, do not force the operation.
• When the test hole is not in use, please plug it with matching silicone rubber to keep the temperature in the box stable.
The refrigeration system uses R404A refrigerant, and maintenance should be carried out by professionals.
