Overview
GDJS-100B 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, 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 and humidification method, armored electric heating tube, water level control device 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. 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 controls the solid state relay through the PID signal to realize the precise adjustment of heating and humidification to simulate different temperature and humidity environments.
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 device through the power button on the operation panel.
3. Use the LCD Touchscreen temperature and humidity controller to set the required temperature range (-30~ 150 ° C) and humidity range (30~ 98% R. H).
4. Start the circulating fan to ensure that the heating and humidification systems start normally.
5. Put the sample in the studio, close the door and make sure the sealing is good.
6. Monitor the operating status and check through observation windows and test holes.
7. After the test is completed, turn off the heating and humidification system and stop the equipment from running.
Notice
• Power frequency meets AC380V requirements to avoid voltage instability.
• Check whether the circulating fan is normal before starting to prevent the heating and humidification system from failing to start.
• When using the test hole, make sure that the stopper sealing is good to maintain the insulation performance.
• Regularly check safety protection devices, such as over-temperature protectors and interlocking devices, to ensure proper function.
• Avoid dry burning of the heater and pay attention to the status of the water level control device.
• Disconnect the power supply during maintenance to prevent the risk of leakage.
