Overview
HZAOC GDJS-500B High and Low Temperature Alternating Damping heat testing 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 stainless steel plate, the outer side is sprayed steel plate, and the thermal insulation material is ultra-fine Glass thermal insulation cotton.
2. The door is made of double-decked silicone rubber sealing material, and the observation window is made of multi-layer conductive film tempered hollow Glass and is equipped with frost-proof heating wire and lighting.
3. The refrigeration system adopts the French "Taikang" fully enclosed Compressor, uses R404A environmentally friendly refrigerant, and has high voltage control, overpressure, overload and other safety protection.
4. The heater adopts a porcelain frame nickel-chrome wire electric heater, which has little thermal inertia and long service life; the humidification adopts the steam boiler electric heating method, and is equipped with a water level control and anti-dry burning device.
5. The control system adopts High Accuracy Digital Display Temperature and Humidity Controller, equipped with PT100 Sensor, stable and reliable control, and has multiple safety protections such as phase loss, over-temperature, and leakage.
6. It is equipped with an independent over-temperature protector and an electrical interlock device to ensure the safety of equipment and samples.
Principle
The test chamber adjusts the temperature and humidity of the air in the working room through equipment such as evaporators, electric heaters, humidifiers and fans in the air conditioning cabinet. The refrigeration system adopts a cascade refrigeration cycle, and realizes low temperature control through a Compressor and an evaporative condenser. The heating and humidification systems are controlled by solid-state relays respectively. According to the feedback signal of the temperature and humidity Sensor, the output is precisely adjusted by the PID controller to realize the set temperature and humidity alternating cycle. The air supply method is the upper air supply and the lower air return to ensure the uniform temperature and humidity in the box.
Applications
Electrical and electronic products, components, parts and materials moisture resistance test, high and low temperature environmental adaptability test, storage test, transportation test
Standards
No specific compliance criteria are mentioned in the data
Steps
1. Connect 380V +/- 10% power supply to ensure that the Power supply voltage meets the requirements.
2. Set the required Temperature range (-30~ 150 ℃), Humidity range (30~ 98% RH) and timing time (0~ 999h) through the buttons on the operation panel.
3. Put the test product into the studio and close the box door to ensure that the double-decked silicone rubber is well sealed.
4. Start the equipment, and the control system will automatically run the refrigeration, heating, humidification, and fan systems to start the temperature and humidity alternation test.
5. During the test, the conditions in the box can be observed through the observation window and lighting, and test holes can be used if necessary.
6. After the test reaches the set time or conditions, the equipment can automatically stop running and remove the test sample.
Notice
* Equipment needs to be operated by professionals to ensure good grounding. Power supply voltage is 380V.
* When placing the test product, it should not block the trend and return trend to ensure uniform air circulation in the box.
During the operation of the equipment, do not open the door frequently to avoid affecting the stability of temperature and humidity and the lifespan of the equipment.
Pay attention to the water level control device to ensure sufficient humidification water and prevent the heater from drying out.
* If the fault indicator light is on, it should be stopped immediately for inspection, and it can be used after troubleshooting.
* Regular maintenance and inspection of refrigerant, sealing strip and electrical system to ensure effective safety protection function.
The total power of the equipment is 3 to 13.5KW. Please ensure that the power supply line capacity is sufficient.
