Overview
HZAOC GDJS-500C 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 SUS304B 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 to ensure sealing.
3. The observation window is a multi-layer conductive film tempered hollow Glass with built-in special heating wire to prevent frost 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 French "Taikang" fully enclosed Compressor, use R404A environmentally friendly refrigerant, and the refrigeration system has multiple safety protections.
6. The heater adopts a porcelain frame nickel-chrome wire electric heater, which has little thermal inertia, long service life, and stable and reliable control.
7. Adopt steam boiler electric heating and humidification method, with water level control and anti-dry burning device.
8. The control system adopts High Accuracy Digital Temperature and Humidity Controller, equipped with independent over-temperature protector and multiple safety protection measures.
9. The air supply method is the upper air supply and the lower air return, and the temperature sensor is placed in a trend.
Principle
The test chamber works together through a refrigeration system, a heating system and a humidification system to simulate and precisely control the temperature and humidity environment in the box. The refrigeration system uses a cascade refrigeration cycle to achieve rapid cooling through components such as Compressors and evaporative condensers. The heating system raises the temperature through an electric heater controlled by PID, and the humidification system generates steam through electric heating to increase the humidity. The control system monitors the temperature and humidity in the box in real time, and realizes the set high and low temperature alternating and humidity cabinet test program by adjusting the working status of each actuator.
Applications
Test on moisture resistance and high and low temperature adaptability of electrical and electronic products, components, parts and materials
Steps
Connect the 380V +/- 10% power supply to ensure that the power supply meets the requirements.
2. Open the door of the test chamber and place the sample to be tested in the working room.
3. Close the door and make sure the double-decked silicone rubber is well sealed.
4. Through the function buttons on the operation panel, set the required Temperature range (-40~ 150 ℃), Humidity range (30~ 98% RH) and test time (0~ 999h).
5. Start the control system, the circulating fan starts working, and then the heating, humidification, and refrigeration systems start running according to the program.
6. During the test, the sample status can be observed through the observation window and lighting.
7. After the test reaches the set time, the equipment automatically stops running or ends according to the program, and the sample is taken out.
Notice
Equipment needs to be operated by professionals and grounded properly.
• Power supply voltage is 380V +/- 10% and phase sequence is correct.
• When placing the sample, do not block the trend and back trend to ensure smooth air circulation.
• It is strictly forbidden to test flammable, explosive and volatile matter.
• During the operation of the equipment, do not open the box door frequently, so as not to affect the temperature and humidity accuracy and equipment life.
• Regularly check the water level of the humidifier to ensure that the water level is normal and prevent the heater from dry burning.
• When the equipment is alarmed by faults such as overtemperature and leakage, it should be shut down immediately for inspection, and can continue to be used after troubleshooting.
• When not in use for a long time, the power supply should be cut off, and the box should be wiped clean and kept drying.
• During maintenance, be sure to cut off the main power supply first.
