Overview
GDJS-250C High and Low Temperature Alternating Damping heat testing chamber is an environmental testing equipment of HZAOC brand. This product is suitable for examining the moisture resistance of electrical and electronic products, components, parts and their 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 plate, the outer side is Cold rolled steel plate sprayed, 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, with built-in heating wire anti-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 the circulation mode of upper air supply and lower air return, and the temperature sensor is placed in a trend.
6. The low temperature refrigeration system adopts the 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. The humidification system adopts the steam boiler electric heating humidification method, and is equipped 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 comprehensive safety protection measures, including phase loss, over-temperature, leakage, etc., and is equipped with an independent over-temperature protector.
Principle
The test chamber simulates and precisely controls the required temperature and humidity environment in a closed box by integrating refrigeration, heating, humidification and circulating air systems. The refrigeration system circulates the refrigerant through the Compressor to achieve cooling; the heating system raises the temperature through the electric heater; the humidification system generates water vapor through electric heating to increase the humidity; the control system monitors the environment in the box through the Sensor and adjusts the actuators PID to achieve the set temperature and humidity Linear dispersion and alternating program.
Applications
Electrical and electronic products, components, parts and materials moisture resistance test, high and low temperature environmental adaptability test, storage test, transportation test
Standards
The data did not mention specific compliance criteria
Steps
The information does not provide specific operation steps
Notice
* Power supply voltage is 380V +/- 10% before operation.
* Note that the total power of the equipment is 3 to 13.5KW, and a power supply line of corresponding capacity is required.
When the circulating fan is not started or overloaded, the heating and humidification systems will not start (interlock protection).
* When using the test hole, attention should be paid to the sealing and insulation of the stopper.
Although the observation window is designed to prevent frost formation, it is still necessary to pay attention to observation under extreme low temperature conditions.
The equipment is equipped with a variety of safety protections, but the operator still needs to check it regularly to ensure that the protection function is effective.
The humidification system needs to ensure that the water level is normal to prevent the heater from drying out.
