Overview
HZAOC GDJS-100E High and Low Temperature Alternating Damping heat testing chamber is suitable for inspecting the moisture resistance of electrical and electronic products, components, parts and materials under different temperature and humidity conditions, and can also be used to evaluate the storage, transportation and adaptability of products in high and low temperature environments.
Features
1. The box adopts the overall structure, the inner side is SUS304B stainless steel, the outer side is sprayed Cold rolled steel plate, and the insulation layer is ultra-fine Glass cotton.
2. The door is double-decked silicone rubber sealing, the observation window is multi-layer conductive film tempered hollow Glass, built-in frost-proof heating wire and lighting.
3. Equipped with test holes with silicone rubber plugs for both thermal insulation performance.
4. Adopt French "Taikang" fully enclosed Compressor, use R404A environmentally friendly refrigerant, and the refrigeration system has multiple safety protections.
5. The heater adopts a porcelain frame nickel-chromium wire electric heater, which has little thermal inertness and long service life; the humidification adopts the electric heating method of a steam boiler, and is equipped with an anti-dry burning device.
6. High Accuracy Digital Temperature and Humidity Controller, accurate and stable control; temperature sensor is PT100.
7. The control system is equipped with multiple safety protections such as phase loss, over-temperature, and leakage, and an independent over-temperature protector.
8. The electrical system is equipped with an interlock device to ensure that the heating and humidification system cannot be started when the fan is not started or overloaded.
Principle
The test chamber adjusts the temperature and humidity of the air in the working room through equipment such as evaporator, electric heater, humidifier and fan in the air conditioning cabinet. The refrigeration system adopts a cascade refrigeration cycle, which realizes rapid cooling through components such as Compressor, condenser and evaporator; the heating system adjusts the power of the electric heater through solid-state relays controlled by PID; the humidification system generates steam through electric heating. The control system precisely controls the operation of refrigeration, heating, humidification and fan according to the temperature and humidity signals fed back by the PT100 Sensor, and realizes the set temperature and humidity Linear dispersion. The box adopts the upper air supply and lower air return mode to ensure uniform temperature and humidity.
Applications
Electrical and electronic products, components, parts and materials moisture resistance test, high and low temperature environmental adaptability test, storage test, transportation test, use environment simulation test
Standards
The data did not mention specific compliance criteria
Steps
Connect the 380V +/- 10% power supply to ensure the correct phase sequence.
2. Open the box door and place the sample in the studio.
3. Close the door and make sure the double-decked silicone rubber is well sealed.
4. Set the required Temperature range (-70~ 150 ℃), Humidity range (30~ 98% RH), change rate and timing time (0~ 999 hours) on the operation panel.
5. Start the control system and the circulating fan starts running.
6. The system runs automatically according to the set program, and realizes temperature and humidity alternation through refrigeration, heating, and humidification systems.
7. During the test, the specimen status can be observed through the observation window and lighting.
8. After the test reaches the set time or condition, it will automatically stop and the sample will be taken out.
9. Turn off the power supply of the equipment for cleaning and maintenance.
Notice
Equipment needs to be operated by professionals and grounded reliably.
* Power supply voltage and phase sequence check before starting to avoid phase loss or phase sequence error.
* The sample placement should not block the sending trend and returning trend to ensure smooth air circulation.
It is forbidden to open the box door frequently during the operation of the equipment to avoid affecting the stability of temperature and humidity and the lifespan of the equipment.
The humidification system water tank needs to ensure that the water level is normal to prevent the heater from drying out.
When the equipment malfunctions such as overtemperature or overload, it should be stopped immediately for inspection and can continue to be used after troubleshooting.
* Regularly check the sealing strip, Sensor, Filter and other components to ensure that they are in good condition and effective.
Refrigeration system maintenance should be carried out by professionals to avoid random disassembly or replacement of refrigerant.
When cleaning the cabinet, please use a soft cloth to avoid the use of corrosive cleaners.
