Overview
HZAOC GDJS-100E 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, 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, the stopper is silicone rubber low foam material, high and low temperature resistance and thermal insulation.
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 and humidification 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, PT100 Temperature Sensor, Solid State Relay Zero 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. Equipped with independent over-temperature protectors and interlocking devices to ensure the safety 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 controls the solid state relay through the PID signal to realize the precise adjustment of temperature and humidity.
Applications
Test of moisture resistance of electrical and electronic products, components, parts and materials, storage, transportation and use adaptability test in high and low temperature environment
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 device through the operation panel and set the required temperature and humidity parameters.
3. Start the circulating fan to ensure that the heating and humidification systems start normally.
4. Place the sample in the studio, close the door and ensure sealing.
5. Monitor temperature and humidity changes and adjust parameters as needed.
6. After the test is completed, turn off the device and remove the sample.
Notice
• Power frequency meets requirements to avoid phase loss or phase sequence errors.
• Check whether the fan is normal before starting to prevent overload.
• The humidification system needs to ensure that the water level is normal to prevent the heater from dry burning.
• Pay attention to over-temperature protection during operation to avoid overheating of the equipment.
• Regularly check sealing materials and observation windows to ensure thermal insulation efficiency.
• Disconnect the power supply during maintenance to prevent the risk of leakage.
