Overview
GDJS-250D High and Low Temperature Alternating Damping heat testing chamber is an environmental testing equipment of HZAOC brand, which is suitable for inspecting the moisture resistance of electrical and electronic products, components, parts and materials under different temperature and humidity conditions, as well as the 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 performance is good.
2. The door is sealed with double-decked silicone rubber to ensure sealing.
3. The observation window is a multi-layer conductive film tempered hollow Glass, built-in anti-frost heating wire and lighting.
4. Equipped with test holes with silicone rubber plugs for both thermal insulation performance.
5. Adopt the French "Taikang" fully enclosed Compressor refrigeration system and use environmentally friendly refrigerants.
6. The heater adopts porcelain frame nickel-chrome wire electric heater, which has little thermal inertness and long service life.
7. Adopt steam boiler electric heating and humidification method, with water level control and anti-dry burning device.
8. High Accuracy Digital Temperature and Humidity Controller for accurate and stable control.
9. The control system is equipped with comprehensive safety protection measures, including over-temperature protection and phase loss protection.
10. Equipped with independent over-temperature protectors and system interlocking devices to enhance equipment safety.
Principle
The test chamber adjusts the temperature and humidity of the air in the working room through the refrigeration system, heating system and humidification system in the air conditioning cabinet. The refrigeration system adopts a cascade refrigeration cycle, which realizes cooling and dehumidification through Compressor, condenser, evaporator and other components; the heating system raises the temperature through an electric heater; the humidification system generates steam through electric heating to increase the humidity. The control system adjusts the working state of each executive component according to the temperature and humidity signal fed back by the Sensor, and realizes the precise control of the return air circulation under the upper air supply to simulate the required temperature and humidity environmental conditions.
Applications
Electrical and electronic products, components, parts and materials moisture resistance test, high and low temperature environmental adaptability test, storage test, transportation test
Steps
Connect 380V +/- 10% power supply.
2. Set the required temperature, humidity and time parameters through the buttons on the operation panel.
3. Place the sample in the studio.
4. Start the equipment. After the circulating fan runs, the heating and humidification system can be started.
5. The equipment runs automatically according to the set program, and the internal situation can be monitored through the observation window.
6. After the test reaches the set time, the equipment can be automatically stopped or completed according to the program.
7. Take out the sample and turn off the power of the device.
Notice
* The equipment needs to be reliably grounded and ensure that the Power supply voltage meets the requirements (380V +/- 10%).
Before the equipment runs, check to confirm that the circulating fan is started normally, otherwise the heating and humidification system will not work.
The humidification system water tank should ensure that the water level is normal to prevent the heater from drying out.
* The refrigeration system is equipped with high voltage protection and other devices, and the system pressure indication should be paid attention to during operation.
The equipment is equipped with an over-temperature protector, but the operator still needs to pay close attention to the operating status.
* When operating at low temperatures, the heating wire of the observation window can prevent frost formation. Please do not turn off this function at will.
* When using the test hole, attention should be paid to the sealing and insulation of the stopper.
When the equipment malfunctions, the fault indicator light on the operation panel will come on, and it should be stopped for inspection.
* Regular maintenance to ensure that the sealing strip, Filter and other components are in good condition.
