Overview
HZAOC GDJS-225A 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 also be used for 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 layer is made of 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, built-in anti-frost heating wire and lighting.
4. Equipped with test holes with silicone rubber plugs for both thermal insulation performance.
5. Adopt French "Taikang" fully enclosed Compressor, use R404A environmentally friendly refrigerant, and the refrigeration system has multiple safety protections.
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. The control system adopts High Accuracy Digital Temperature and Humidity Controller, equipped with multiple safety protection (such as phase loss, over-temperature, leakage protection, etc.) and independent over-temperature protector.
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 adjusts the temperature and humidity of the air in the box through evaporators, electric heaters, humidifiers, fans and other equipment in the air conditioning cabinet. The refrigeration system adopts a cascade refrigeration cycle to achieve rapid cooling and temperature control through components such as Compressor, condenser, evaporator, etc. The heating and humidification systems generate heat and steam through electric heaters and electric heating humidifiers respectively, and are PID adjusted by the High Accuracy controller according to the feedback of the Sensor, so as to realize the set temperature and humidity Linear dispersion and alternating test.
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
Standards
(No specific standards are mentioned in the reference materials.)
Steps
(The specific operation steps are not mentioned in the reference materials.)
Notice
• Power supply voltage 380V +/- 10%.
• Make sure that the circulating fan starts normally before operation, otherwise the heating and humidification system will not start.
• Pay attention to observe the operation of the system, the high voltage terminal is equipped with a monitoring pressure gauge.
• The humidification system needs to ensure that the water level is normal to prevent the heater from dry burning.
The equipment is equipped with a variety of safety protections. If the fault indicator light is on, corresponding problems (such as phase loss, overtemperature, overload, etc.) should be investigated.
• When using the test hole, pay attention to the sealing and insulation of the stopper.
• When operating at low temperatures, the anti-frost heating function of the observation window will work automatically.
