Overview
HZAOC GDJS-500D 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 Cold rolled 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, with anti-frost built-in 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 heater adopts porcelain frame nickel-chrome wire electric heater, which has little thermal inertia and long service life.
8. Adopt steam boiler electric heating and humidification method, with water level control and anti-dry burning device.
9. The control system adopts High Accuracy Digital Temperature and Humidity Controller for accurate and stable control.
10. Equipped with a complete safety protection system, including multiple protections such as phase loss, over-temperature, and leakage.
11. Equipped with an independent over-temperature protector, it can still protect the safety of the equipment in the event of a main control failure.
Principle
The test chamber adjusts the environment in the working room through evaporators, electric heaters, humidifiers, fans and other equipment in the air conditioning cabinet. The refrigeration system uses a cascade refrigeration cycle to achieve rapid cooling through components such as Compressors, condensers, evaporators, etc. The heating and humidification systems generate heat and humidity through electric heaters and electric heating humidification pipes respectively. Sensor signals are collected by High Accuracy temperature and humidity controllers, and PID control is carried out through actuators such as solid state relays, so as to achieve accurate setting, adjustment and alternating cycle of temperature and humidity.
Applications
Electrical and electronic products, components, parts and materials moisture resistance test, high and low temperature environmental adaptability test, product storage, transportation and use simulation test under high and low temperature conditions
Steps
Connect the 380V +/- 10% power supply to ensure that the power supply meets the requirements.
2. Through the buttons on the operation panel, set the required Temperature range (-60~ 150 ℃), Humidity range (30~ 98% RH) and timing time (0~ 999h).
3. Put the test sample into the studio and close the box door to ensure that the double-decked silicone rubber is well sealed.
4. Start the equipment, the circulating fan starts to work, and then the heating, humidification, and refrigeration systems operate according to the set program.
5. Observe the dogfooding situation through the observation window and lighting, and connect the external test line through the test hole.
6. After the test reaches the set time or conditions, the equipment stops running according to the program and the sample is taken out.
Notice
• Before running the equipment, check whether the Power supply voltage is 380V +/- 10% and ensure good grounding.
• Do not open the box door frequently when the equipment is running, so as not to affect the stability of temperature and humidity and the life of the equipment.
• When placing the sample, the trend and back trend should not be blocked to ensure uniform temperature and humidity in the box.
• The humidification system is equipped with water level control, please check regularly and ensure that the water supply is normal to prevent the heater from dry burning.
• The equipment is equipped with a variety of safety protections (such as overtemperature, phase loss, fan overload, etc.). If the fault indicator light is on, the fault should be eliminated before operation.
The refrigeration system uses environmentally friendly refrigerants, and maintenance should be carried out by professionals.
• When not in use for a long time, the power supply should be cut off, and the box should be cleaned and kept drying.
