Overview
HZAOC GDJS-800D 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 air conditioning cabinet is equipped with evaporators, electric heaters, humidifiers, fans and other equipment, and the air supply method is the upper air supply and the lower air return.
5. The heater adopts a porcelain frame nickel-chrome wire electric heater, which has little thermal inertia, long service life, and stable and reliable control.
6. The humidification system adopts steam boiler electric heating and humidification method, armored electric heating tube, with water level control and anti-dry burning device.
7. The control system adopts LCD Touchscreen Temperature and Humidity Controller, PT100 Temperature Sensor, Solid State Relay Zero Trigger to improve the control accuracy.
8. 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.
9. Independent over-temperature protectors and interlocking devices ensure equipment safety.
Principle
The test chamber adjusts the temperature and humidity through the evaporator, electric heater and humidifier in the air conditioning cabinet, and circulates the air by the upper air supply and lower air return mode. 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.
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 operation panel and check the function buttons and indicator lights.
3. Set the required temperature and humidity parameters, including Temperature range -60~ 150 ℃ and Humidity Control Range 30~ 98% R.H.
4. Start the circulating fan to ensure that the interlock allows the heating and humidification system to operate.
5. Monitor Temperature and Humidity Fluctuations and Uniformity to ensure compliance.
6. After the test is completed, turn off the device and disconnect the power supply.
Notice
• Power frequency check meets AC380V requirement before operation.
• Ensure that the circulating fan starts normally, otherwise the heating and humidification system will not operate.
• Regularly check safety protection devices, such as over-temperature protectors and leakage protection.
• Avoid dry burning of the heater and pay attention to the status of the water level control device.
• Plug the test hole in time after use to maintain thermal insulation efficiency.
• The observation window heating wire and lighting are for observation only, do not look directly at it for a long time.
