Overview
HZAOC GDJS-250B 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 SUS304B stainless steel plate, the outer side is Cold rolled steel plate sprayed, and the thermal insulation material is ultra-fine Glass thermal insulation cotton.
2. The door is made of double-decked silicone rubber sealing material, the observation window is a multi-layer conductive film tempered hollow Glass, built-in anti-frost heating wire and lighting.
3. The side of the box is equipped with φ 50mm test hole, using high and low temperature resistant silicone rubber low foam stopper.
4. Adopt French "Taikang" fully enclosed Compressor unit, use R404A environmentally friendly refrigerant, and the refrigeration system has multiple safety protections.
5. The heater adopts a porcelain frame nickel-chrome wire electric heater, which has little thermal inertia and long service life; the humidification adopts the steam boiler electric heating method, and is equipped with a water level control and anti-dry burning device.
6. The control system adopts High Accuracy Digital Temperature and Humidity Controller, equipped with PT100 Sensor, stable and reliable control.
7. Equipped with complete safety protection measures, including phase loss, over-temperature, leakage, etc., and equipped with an independent over-temperature protector.
8. 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 and fans in the air-conditioning cabinet. The refrigeration system adopts a cascade refrigeration cycle, which realizes rapid cooling and temperature control through components such as Compressor, condenser, evaporator, etc. The heating and humidification systems are controlled by solid-state relays. The electric heater and electric heating humidification tube work respectively, and the PID adjustment is carried out by the High Accuracy temperature and humidity controller and Sensor to realize the set temperature and humidity alternating program.
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
The data did not mention specific compliance criteria
Steps
The information does not provide specific operation steps
Notice
* Power supply voltage 380V +/- 10%.
Before operation, check whether the safety protection function of the electrical control system is normal, such as phase loss protection, over-temperature protection, etc.
Pay attention to the water level of the humidification system to prevent the heater from drying out.
When the circulating fan is not started or overloaded, the heating and humidification system will fail to start.
When operating at low temperatures, pay attention to whether the anti-frost device of the observation window is working properly.
* When using the test hole, attention should be paid to the sealing and insulation efficiency of the stopper.
During the operation of the equipment, do not open the door frequently.
Regularly maintain the refrigeration system, check the pressure indicator and protective devices.
