Overview
HZAOC GDW-500B 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 shell is sprayed Cold rolled steel plate, and the thermal insulation layer is made of 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 built-in heating wire frost and lighting.
4. The side of the box is equipped with a test hole with a silicone rubber insulation plug.
5. The heater adopts porcelain frame nickel-chrome wire electric heater, which has little thermal inertness and long service life.
6. Low temperature refrigeration adopts French "Taikang" fully enclosed Compressor, and key components adopt multinational imported brands.
7. Control system adopts High Accuracy Digital Temperature Controller for accurate and stable control.
8. Safety protection system, including independent over-temperature protector and multiple electrical protection.
9. The air supply method is the upper air supply and the lower air return, and the temperature is uniform.
Principle
The equipment adjusts the temperature in the working room through the evaporator (refrigeration) and electric heater (heating) in the air conditioning cabinet, and the circulating fan promotes the air circulation to achieve uniform temperature. The Control system detects the trend temperature through the temperature sensor (PT100), and uses the High Accuracy temperature controller and solid state relay to PID adjust the operation of the refrigeration unit and heater, so as to achieve accurate temperature control and rapid temperature change.
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 80cm space is reserved around).
2. Connect the AC380V (+/- 10%) three-phase four-wire power supply.
3. Start the device through the button on the operation panel, and start the circulating fan first.
4. Set the required test temperature, time, and other parameters on the temperature controller.
5. Place the sample in the studio and close the box door.
6. Start the test program and the equipment starts running.
7. During the test, the conditions in the box can be observed through the observation window.
8. After the test, remove the sample and turn off the power of the equipment.
Notice
* The operating environment should be below 28 ° C and well ventilated.
* Items cannot be placed within 80 cm of the front, rear, left and right of the equipment placement.
* The power requirements are AC380V (+/- 10%)/50Hz three-phase four-wire system.
When starting, it is necessary to ensure that the circulating fan starts normally before the cooling and heating systems can work.
* The equipment is equipped with an independent over-temperature protector, but it is still necessary to check the various Safety protection functions regularly.
* When using the test hole, attention should be paid to the sealing and insulation of the stopper.
Regularly maintain the refrigeration system and clean the equipment to ensure stable operation.
