Overview
HZAOC GDJW-010C 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. 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, and the observation window is a multi-layer conductive film tempered hollow Glass, the size is 200 × 300mm, and the built-in special heating wire is anti-frosting and lighting.
3. 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.
4. The heating device adopts porcelain frame nickel-chromium wire electric heating device, which has small thermal inertia, long life and stable and reliable control.
5. Low temperature refrigeration adopts French "Taikang" fully enclosed Compressor unit, uses R404A environmentally friendly refrigerant, and has high voltage control, overpressure, overload and other protection systems.
6. Control system with High Accuracy Digital Temperature Controller and PT100 Temperature Sensor, accurate and stable control, long-term operation without drift.
7. Safety protection measures are provided, including phase loss protection, phase sequence error protection, over-temperature protection, power-off protection, etc., and independent over-temperature protectors and interlocking devices are provided.
Principle
The low/high temperature test Chamber achieves temperature control through heating and cooling systems. The heating system uses a porcelain frame nickel-chrome wire electric heating device, which is controlled by a controlled pulse duty cycle PID signal output by the meter and controlled by a solid-state relay; the refrigeration system uses a French "Taikang" fully enclosed Compressor unit, using R404A environmentally friendly refrigerant. The temperature sensor is placed in a trend, and the air supply method is upper air supply and lower air return to ensure uniform temperature. The Control system monitors and regulates the temperature through a High Accuracy digital temperature controller and a PT100 Sensor, and has a variety of protection mechanisms to ensure safe operation.
Applications
Electrical, electronic products, components, parts and materials in high and low temperature environment storage, transportation and use 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 380V +/- 10%, three-phase five-wire system.
2. Provide deionized water or purified water as a source of water.
3. Temperature range, heating rate, cooling rate and timing time are set through the operation panel.
4. Start the device, observe the running status, and ensure that the fault-free indicator light is on.
5. Monitor Temperature Uniformity, Fluctuations and deviations to ensure compliance with test requirements.
6. After the test is completed, press the operation panel to stop the device and disconnect the power supply.
Notice
• Ambient Temperature should be maintained at 5~ 28 ℃, Humidity ≤ 85% R.H.
• Power supply voltage must be AC380 (+/- 10%) V/50HZ, three-phase five-wire system.
• Use deionized water or purified water as a source of water and avoid using ordinary tap water.
• Check whether the circulating fan is normal before starting to prevent the refrigeration unit and heating system from failing to operate due to the failure of the fan to start or overload.
• Regularly check the protection system, such as high voltage control, overvoltage, overload, etc., to ensure the safety of the equipment.
• The observation window has a built-in heating wire and lighting to avoid direct contact with high-temperature surfaces.
• The test hole stopper is silicone rubber low foam material, plug it in time after use to maintain thermal insulation efficiency.
