Overview
HZAOC GDJW-800E 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. 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 spraying, and the thermal insulation material is ultra-Glass fine thermal insulation cotton.
Features
1. The box adopts the overall structure, the inner SUS304B stainless steel plate, the outer Cold rolled steel plate is 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. The heating device adopts porcelain frame nickel-chromium wire electric heating device, which has small thermal inertia, long life and stable and reliable control.
6. Low temperature refrigeration adopts French "Taikang" fully enclosed Compressor unit, using R404A environmentally friendly refrigerant.
7. Control system adopts High Accuracy Digital Temperature Controller and PT100 Temperature Sensor for accurate and stable control.
8. Safety protection measures are provided, including phase loss protection, over-temperature protection, leakage protection, etc.
9. The air supply method is the upper air supply and the lower air return to ensure uniform temperature.
Principle
The low/high temperature test Chamber realizes temperature control through heating system and refrigeration system. The heating device adopts a porcelain frame nickel-chrome wire electric heating device, which is controlled by a solid-state relay by outputting a controllable pulse duty cycle PID signal from the meter; the low temperature refrigeration adopts a French "Taikang" fully enclosed Compressor unit and uses R404A environmentally friendly refrigerant. The temperature sensor is placed in a trend, and the Control system is accurately controlled by PT100 temperature measurement sensor and High Accuracy digital display temperature controller. The air supply method is upper air supply and lower air return to ensure Temperature uniformity and Stability.
Applications
Electrical, electronic products, components, parts and materials of high and low temperature environmental adaptability test, temperature gradual change test, electronic components 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. Provide deionized water or purified water as a source of water.
3. Set the temperature parameters and Timer Range (0~ 999 hours) through the operation panel.
4. Start the circulating fan to ensure normal operation.
5. Start the heating or cooling system for testing.
6. Monitor the test process through observation windows and test holes.
7. After the test, shut down the system and disconnect the power supply.
Notice
• Ambient Temperature should be maintained at 5~ 28 ℃, Humidity ≤ 85% R.H.
• Power supply voltage must be AC380V +/- 10%, three-phase five-wire system.
• Use deionized water or purified water as a source of water.
• Make sure the circulating fan is normal before starting, otherwise the heating and cooling system will not start.
Safety protection system, such as high voltage control, overvoltage, overload protection, etc.
• Avoid frosting the observation window at low temperatures and use the built-in heating wire function.
• Do not open the door at will during the operation of the equipment to prevent temperature fluctuations.
• Pay attention to power failure during maintenance to ensure safety.
