Overview
HZAOC GDJW-100B 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 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 made of multi-layer conductive film tempered hollow Glass, with built-in special heating wire to prevent frost and lighting.
3. The side of the box is equipped with φ 50mm test hole, and the stopper is silicone rubber low foam material, which has both thermal insulation efficiency.
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, using R404A environmentally friendly refrigerant, Miscellaneous refrigeration parts are imported brands.
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, over-temperature protection, leakage protection, etc., to ensure the safe operation of the system.
Principle
The low/high temperature test Chamber realizes temperature control through heating and refrigeration systems. The heating system adopts a porcelain frame nickel-chrome wire electric heating device, which outputs a controllable pulse duty cycle PID signal from the meter and is controlled by a solid-state relay; the refrigeration system uses a fully enclosed Compressor unit and environmentally friendly refrigerant to achieve rapid cooling and temperature stability. Control system monitors the trend temperature through temperature sensors, and circulates the air under the upper air supply to ensure Temperature uniformity and accuracy.
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. Power supply voltage is AC380V +/- 10%, three-phase five-wire system, Ambient Temperature 5~ 28 ℃, Humidity ≤ 85% R.H.
2. Use deionized water or purified water as a source of water.
3. Turn on the power supply of the device and set the required Temperature range and time parameters through the operation panel.
4. Start the circulating fan to ensure that the refrigeration or heating system is started after normal operation.
5. Monitor temperature fluctuations and uniformity to ensure compliance with test requirements.
6. After the test is completed, turn off the heating and cooling systems in sequence, and finally turn off the power supply.
Notice
• Ensure that the circulating fan starts normally when the equipment is running, otherwise the refrigeration and heating system will not start.
• Safety protection devices, such as over-temperature protectors, high voltage control, etc. are checked regularly to ensure reliable function.
• Avoid use in non-specified environment conditions to prevent equipment damage.
• Clean the inside of the box in time after use to keep the observation window transparent.
• Disconnect the power supply during maintenance to prevent the danger of electric shock.
