Overview
HZAOC GDW-250A low/high temperature test chamber is suitable for the adaptability test of electrical and electronic products, components, parts and materials in high and low temperature environment storage, transportation and use, as well as temperature gradual change test. The equipment can also perform stress screening test on electronic components.
Features
1. The box adopts the overall structure, the inner side is imported SUS304B stainless steel plate, the outer side is Cold rolled steel plate sprayed, and the thermal insulation material is ultra-fine Glass thermal insulation cotton.
2. The door is made of double-decked silicone rubber sealing material with good sealing performance.
3. The observation window is a multi-layer conductive film tempered hollow Glass, with built-in special heating wire anti-frosting 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 unit, and uses Miscellaneous internationally renowned brand refrigeration parts and R404A refrigerant.
7. Control system adopts High Accuracy Digital Temperature Controller and PT100 Sensor for accurate and stable control.
8. Safety protection system with multiple, including independent over-temperature protector and electrical interlock device.
Principle
The equipment realizes temperature regulation in the working room through components such as evaporator, electric heater and fan in the air conditioning cabinet. The refrigeration system uses Compressor refrigeration, and the heating system uses electric heater. The Control system controls the solid state relay through PID adjustment according to the feedback of the temperature sensor (placed out of trend), so as to precisely control the operation of the heating and cooling system and realize the set temperature change Linear dispersion. The studio adopts the air circulation mode of upper air supply and lower air return to ensure uniform temperature.
Applications
Electrical, electronic products, components, parts and materials high and low temperature adaptability test, temperature gradual change 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 around).
2. Connect the power supply that meets the requirements (AC380V +/- 10%/50Hz three-phase four-wire system).
3. Perform function settings and start operations through the buttons on the operation panel.
4. Set the required temperature program, time, and other parameters.
5. Start the equipment and start the test.
6. During the test, the sample status can be observed through the observation window.
7. After the test, shut down the equipment according to the procedures.
Notice
* Equipment Operating Environment Temperature must be between 5 ° C and 28 ° C, and the average temperature within 24 hours is ≤ 28 ° C.
* Environmental humidity should be ≤ 85%.
* Must ensure that the power supply is AC380V +/- 10%/50Hz three-phase four-wire.
* The operating environment should be below 28 degrees and well ventilated.
* Items cannot be placed within 80 cm of the front, rear, left and right of the equipment placement.
* Safety protection is provided, but the operation still needs to comply with safety regulations.
Regular maintenance inspections to ensure the normal operation of the equipment.
