Overview
HZAOC GDJS-100A 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, as well as the adaptability test of storage, transportation and use in high and low temperature environments.
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 with silicone rubber stopper, which has both 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 the steam boiler electric heating humidification method, and is equipped with a water level control device and a dry burning prevention 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 unevenness protection, fan overload protection, over-temperature power failure protection, and leakage protection.
8. Equipped with independent over-temperature protectors and interlocking devices to ensure the safe operation of the equipment.
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. Connect the power supply and ensure that the voltage is AC380V.
2. Start the control system through the operation panel and set the required temperature and humidity parameters.
3. Start the circulating fan to ensure that the heating and humidification system is automatically enabled after normal operation.
4. Monitor temperature and humidity fluctuations and uniformity to ensure compliance with test requirements.
5. After the test is completed, turn off the heating and humidification system and stop the fan from running.
Notice
• Check the power supply phase sequence and voltage before operation to avoid phase sequence errors or voltage irregularities.
• Ensure that the circulating fan starts normally, otherwise the heating and humidification system will not operate.
• Regularly check the water level control device and anti-dry burning device to prevent the humidifier from dry burning.
• Pay attention to the heating wire and lighting function of the observation window to prevent the frost of the Glass from affecting the observation.
• Plug the silicone rubber stopper in time after the test hole is used to maintain the thermal insulation efficiency.
• In the event of over-temperature or Miscellaneous failure, the system will automatically power off protection, and the cause needs to be investigated in time.
