Overview
HZAOC GDJW-50A 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. Stress screening test can also be carried out on electronic components.
Features
1. The box adopts the overall structure, the inner side is 1.0mm SUS304B stainless steel plate, the outer side is 1.0mm Cold rolled steel plate sprayed, and the thermal insulation material is ultra-fine Glass thermal insulation cotton.
2. The door sealing is made of double-decked silicone rubber sealing material.
3. The observation window is multi-layer conductive film tempered hollow Glass, size 200 × 300mm, built-in special heating wire anti-frost and lighting.
4. The side of the box is equipped with φ 50mm test hole, the stopper is silicone rubber low foam material, high and low temperature resistance and thermal insulation.
5. There is an air conditioning cabinet at the back of the studio, and equipment such as evaporators, electric heating devices, humidifiers, and fans are installed.
6. The heating device adopts porcelain frame nickel-chromium wire electric heating device, which has small thermal inertia, long life and stable and reliable control.
7. Low temperature refrigeration adopts French "Taikang" fully enclosed Compressor unit, using R404A environmentally friendly refrigerant.
8. Control system adopts High Accuracy Digital Temperature Controller and PT100 Temperature Sensor for accurate and stable control.
9. Safety protection measures include phase loss protection, over-temperature protection and leakage protection.
10. The air supply method is upper air supply and lower air return to ensure uniform temperature.
Principle
The low/high temperature test Chamber achieves temperature control through the heating system (porcelain frame nickel-chrome wire electric heating device) and the refrigeration system (French "Taikang" fully enclosed Compressor). The temperature sensor is placed in the trend to monitor the temperature. The Control system adjusts the heating and cooling output through PID signals to ensure stable temperature. The air supply method is the upper air supply and the lower air return to keep the temperature of the studio uniform.
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
Connect the power supply to ensure that the voltage is AC380V +/- 10%, three-phase five-wire system.
2. Check the water source and use deionized water or purified water.
3. Turn on the device power supply and lighting switch.
4. Set parameters such as Temperature range (-20~ 150 ℃) and Humidity range (30~ 98% R. H).
5. Start the circulating fan to ensure normal operation.
6. Start the heating or cooling system as needed.
7. Monitor temperature fluctuations and uniformity to ensure compliance with requirements.
8. After the test is completed, turn off the heating, cooling and power supply.
Notice
* Equipment Ambient Temperature should be maintained at 5~ 28 ℃, Humidity ≤ 85% R.H.
* Power supply voltage must be AC380V +/- 10% to avoid overload use.
* Use deionized water or purified water as a water source to prevent impurities from affecting the equipment.
* Safety protection system check before starting, such as phase loss protection, over-temperature protection is normal.
* When the circulating fan is not started or overloaded, it is forbidden to start the refrigeration unit and heating system.
* Regularly check the test hole stopper and observation window to ensure that the sealing and function are intact.
Avoid frequent switching when the equipment is running to extend its service life.
In case of malfunction, immediately shut down and check the fault indicator.
