Overview
HZAOC GDJW-010A high and low temperature alternating test chamber is suitable for the adaptability test of electrical, electronic products, components, parts and materials in high and low temperature environment storage, transportation and use, as well as temperature gradual change test, and stress screening test for electronic components. The box adopts the overall structure, the inner side is 1.0mm SUS304B stainless steel plate, the outer side is 1.0mm Cold rolled steel plate spraying, and the thermal insulation material is ultra-fine Glass thermal insulation cotton to ensure efficient heat insulation.
Features
1. The box is made of double-decked silicone rubber sealing material and door observation window, with built-in special heating wire to prevent frost and lighting.
2. The heater adopts porcelain frame nickel-chrome wire electric heater, which has small thermal inertia, long service life, and stable and reliable control.
3. The control system adopts LCD Touchscreen temperature and humidity controller and Schneider electrical components, and supports full Chinese menu operation.
4. It has a variety of safety protection functions, including phase loss protection, over-temperature protection, and leakage protection.
5. Linear dispersion of multiple processes can be stored, power failure recovery setting is flexible, and program operation and fixed value operation are supported.
Principle
The high and low temperature alternating test chamber realizes temperature control through heating and cooling system. The heater adopts porcelain frame nickel-chrome wire electric heater, which is controlled by solid-state relay by outputting controllable pulse duty cycle PID signal from the instrument; the cooling system adopts shunt method to adjust the cooling capacity. The control system adopts continuous PID control, and the trend temperature is monitored through the temperature transducer to realize accurate temperature change and program operation.
Applications
Electrical and electronic products, components, parts and materials adaptability test, stress screening test
Steps
1. Set the temperature program in the controller or call the pre-stored process Linear dispersion.
2. Start the circulating fan to ensure the normal operation of the system.
3. Run the test according to the set program and monitor the temperature and data in real time.
4. After the test is completed, shut down the system and check the equipment status.
Notice
• Power frequency is 380V +/- 10% to avoid voltage instability affecting equipment operation.
• Before starting the refrigeration unit and heating system, confirm that the circulating fan has been started and is not overloaded.
• Regularly check safety protection devices, such as over-temperature protectors, high voltage controls, etc., to ensure normal function.
• When using the test hole, pay attention to the sealing of the stopper to prevent temperature leakage.
• When a fault occurs, refer to the fault number displayed by the controller to check the cause in time.
