Overview
HZAOC GDJS-150A 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, as well as the adaptability test of 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, which has 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. The air supply method is upper air supply and lower air return.
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. High Accuracy Digital Temperature and Humidity Controller for accurate and stable control.
10. The control system is equipped with multiple safety protection and interlocking devices such as phase loss, over-temperature, and leakage.
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, and realizes low temperature control through a Compressor and an evaporative condenser. The heating and humidification systems generate heat and moisture through electric heaters and steam boilers respectively. Sensor signals are collected by High Accuracy Temperature and Humidity Controller, and PID control is carried out through actuators such as solid-state relays to achieve the set temperature and humidity. Linear dispersion of temperature and humidity is achieved. The air flow in the box adopts the upper air supply and lower air return mode to ensure a uniform environment.
Applications
Test on moisture resistance and high and low temperature adaptability of electrical and electronic products, components, parts and materials
Standards
No specific compliance criteria are mentioned in the data
Steps
The specific operation steps are not provided in the data
Notice
• Power supply voltage meets requirements (380V +/- 10%) before running the equipment.
• Pay attention to check whether the high voltage protection, overvoltage and overload protection of the refrigeration system are normal.
• When the humidification system is running, ensure that the water level control device and the anti-dry burning device are working properly.
• When starting the equipment, start the circulating fan first, and the heating and humidification system can only be started (interlock function).
• During operation, pay attention to the fault indicator light on the control panel.
• There is an independent over-temperature protector outside the main controller, but its Reliability needs to be checked regularly.
• When using the test hole, pay attention to the sealing and insulation of the stopper.
• The total power of the equipment is large, please pay attention to the line load capacity.
