Overview
HZAOC GDJS-50D 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 storage, transportation and use adaptability tests 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, which has good sealing performance.
3. The observation window is a multi-layer conductive film tempered hollow Glass, built-in anti-frost heating wire and lighting.
4. The side of the box is equipped with a test hole with a silicone rubber plug, which has both thermal insulation efficiency.
5. Adopt the upper air supply and lower return air mode, and the temperature sensor is placed in a trend.
6. Low temperature refrigeration adopts French "Taikang" fully enclosed Compressor and uses R404A environmentally friendly refrigerant.
7. The refrigeration system is equipped with multiple safety protections such as high voltage control, overvoltage and overload.
8. The heater adopts porcelain frame nickel-chrome wire electric heater, which has little thermal inertness and long service life.
9. Adopt steam boiler electric heating and humidification method, with water level control and anti-dry burning device.
10. The control system adopts High Accuracy Digital Temperature and Humidity Controller, which does not drift for long-term operation.
11. The control system is equipped with multiple safety protections such as phase loss, phase sequence error, over-temperature power failure, and leakage.
12. Equipped with an independent over-temperature protector, it can still be reliably protected in the event of a main controller failure.
13. The electrical control system is equipped with interlocking devices to enhance safety.
Principle
The test chamber adjusts the temperature and humidity of the air in the working room through the evaporator, electric heater, humidifier, fan and other equipment in the air conditioning cabinet. The refrigeration system adopts a cascade refrigeration cycle, and the high-temperature evaporator acts as the condenser of the low-temperature stage at the same time. The heating and humidification systems are precisely controlled by solid-state relays according to the PID signal of the controller to achieve the set temperature and humidity Linear dispersion. The air flow in the box adopts the upper supply air and lower return air mode to ensure the uniformity of temperature and humidity.
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
No specific compliance criteria are mentioned in the data
Steps
Detailed operation steps are not provided in the data
Notice
* Power supply voltage 380V +/- 10%.
Please check whether the safety protection device is normal before operation, including phase loss protection, over-temperature protection, etc.
* Pay attention to the high voltage meter monitoring of the refrigeration system to ensure normal operation.
When the humidification system is running, please pay attention to the water level to prevent the heater from drying out.
When starting the equipment, ensure that the circulating fan starts normally, otherwise the heating and humidification system will fail to start.
When conducting a low temperature test, be aware that the observation window may be frosted, and the built-in heating wire will work automatically.
* When using the test hole, please pay attention to plug the silicone rubber plug after use to maintain the thermal insulation performance.
The total power of the equipment is between 3 and 13.5KW. Please ensure that the power supply line meets the requirements.
* When the fault indicator light is on, please check the fault according to the instructions before running.
