Overview
HZAOC GDJS-500E 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 the steam boiler electric heating and humidification method, and is equipped with water level control and dry burning prevention devices.
6. The control system adopts LCD Touchscreen Temperature and Humidity Controller, 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 safety of equipment and samples.
Principle
The test chamber realizes the circulation mode of the upper air supply and lower air return through the evaporator, electric heater, humidifier, fan and other equipment in the air conditioning cabinet, and the temperature transducer is placed in a trend, and the PID control signal is used to adjust the heating and humidification through the solid state relay 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 power supply and lighting through the operation panel.
3. Set the temperature and humidity parameters, Temperature range -70~ 150 ℃, 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 the control system and observe the fault indicator to ensure that the safety measures are in place.
6. After completing the test, turn off the heating, humidification, and fans, and disconnect the power supply.
Notice
• Power frequency meets AC380V requirements to avoid voltage instability.
• Check whether the safety protection device, such as phase loss protection, over-temperature protection, etc. are normal before operation.
• Run the circulating fan first when starting to prevent the heating and humidification system from working when the fan is not started.
• Regularly check the water level control device and heater anti-dry burning device to avoid damage to the equipment.
• When using the test hole, ensure that the stopper sealing is good to prevent temperature and humidity leakage.
• Avoid running under extreme temperature and humidity conditions for a long time to extend the life of the equipment.
• Disconnect power during maintenance and follow maintenance guidelines to prevent electric shock or equipment failure.
