Overview
HZAOC GDJS-225C 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, and can be used as an adaptability test equipment for 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 material is ultra-fine Glass thermal insulation cotton.
2. The door is made of double-decked silicone rubber sealing material with good sealing performance.
3. The observation window is a multi-layer conductive film tempered hollow Glass, with 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 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, which does not drift for long-term operation.
10. The control system is equipped with complete safety protection measures, including over-temperature protection, phase loss protection, etc., and is equipped with an independent over-temperature protector.
Principle
The test chamber adjusts the temperature and humidity of the air in the working room through equipment such as evaporators, electric heaters, humidifiers and fans 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 steam through electric heaters and electric heating humidifiers respectively. The Sensor signal is collected by the High Accuracy Temperature and Humidity Controller, and the PID control is carried out through actuators such as solid-state relays to achieve the set temperature and humidity change Linear dispersion.
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
Steps
Connect 380V +/- 10% power supply.
2. Set the required Temperature range (-40~ 150 ℃), Humidity range (30~ 98% RH) and timing time (0~ 999h) through the buttons on the operation panel.
3. Place the sample in the studio.
4. Start the equipment, and after the circulating fan is started, the heating and humidification system can work.
5. The equipment runs according to the set program, and the internal situation can be observed through the observation window.
6. After the test, remove the sample and power off the device.
Notice
* The equipment needs to be reliably grounded and ensure that the Power supply voltage is 380V +/- 10%.
Before running the equipment, check whether the protection functions (e.g. phase loss, over-temperature, leakage protection) are normal.
It is forbidden to open the box door while the equipment is running, so as not to affect the test results or cause injury.
The humidification system water tank needs to ensure that the water level is normal to prevent the heater from drying out.
* When placing the sample, it should not be blocked out of the trend and back to the trend to ensure uniform temperature in the box.
When the equipment malfunctions, refer to the fault indicator light and contact a professional for repair. Do not disassemble it yourself.
Regularly clean the inside of the box and air conditioning cabinet to maintain the equipment in good working condition.
