Overview
HZAOC GDJS-150D high and low temperature alternating damping heat test chamber is suitable for investigating the moisture resistance of electrical and electronic products, components, parts and materials under different temperature and humidity conditions, and can be used as a storage, transportation and use in high and low temperature environment adaptability test.
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, the observation window is a multi-layer conductive film tempered hollow Glass, and the built-in special heating wire is frost-proof 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 high and low temperature resistance and thermal insulation efficiency.
4. The heater adopts a porcelain frame nickel-chrome wire electric heater, which has little thermal inertia, long service life, and stable and reliable control.
5. The humidification system adopts steam boiler electric heating method, armored electric heating tube, with water level control and anti-dry burning device.
6. The control system adopts LCD Touchscreen temperature and humidity controller, equipped with PT100 Temperature Sensor, solid state relay zero-crossing trigger to improve control accuracy.
7. Safety protection measures include phase loss protection, phase sequence error protection, phase voltage uneven protection, fan overload protection, over-temperature power failure protection, leakage protection, etc.
8. Independent over-temperature protectors and interlocking devices ensure the safety of the equipment, and the heating and humidification system cannot be started when the circulating fan is not started.
Principle
The test chamber adjusts the temperature and humidity in the working room through the evaporator, electric heater, humidifier, fan and other equipment in the air conditioning cabinet. The temperature transducer is placed in a trend, and the control system precisely controls the heating and humidification output through PID signals and solid state relays to achieve a stable temperature and humidity environment simulation.
Applications
Electrical and electronic products, components, parts and materials moisture resistance test, high and low temperature environment storage adaptability test, transportation adaptability test, use adaptability test
Standards
GB/T2423.3-2001、GB/T5170.5-96、GB/T10586-89
Steps
1. Power frequency AC380V to ensure stable power supply.
2. Start the device through the power button on the operation panel and check the status of the fault indicator light.
3. Use the LCD Touchscreen temperature and humidity controller to set the required temperature range (-60~ 150 ° C) and humidity range (30~ 98% R. H).
4. Start the circulating fan to ensure that the fan is running normally, and the system automatically allows the heating and humidification functions to start.
5. Monitor Temperature and Humidity Fluctuations and Uniformity to ensure compliance with setting requirements.
6. After the test is completed, stop the device from running through the operation panel and disconnect the power supply.
Notice
• When the equipment is running, ensure that the circulating fan starts normally, otherwise the heating and humidification system will not work.
• Regularly check safety protection devices, such as over-temperature protectors, leakage protection, etc., to ensure reliable function.
• Pay attention to water level control during the use of the humidification system to prevent the heater from dry burning.
• The observation window heating wire and lighting are for observation only, avoid looking directly at it for a long time.
• Test hole stoppers need to be properly installed to maintain thermal insulation efficiency.
• Disconnect power during maintenance to avoid electrical hazards.
