Overview
HZAOC GDJW-500C high and low temperature alternating test chamber is a equipment suitable for storing, transporting and using adaptability test of electrical, electronic products, components, parts and materials in high and low temperature environment. It supports temperature gradual change test and electronic components stress screening test. The box adopts an overall structure, the inner side is stainless steel plate, and the outer side is sprayed Cold rolled steel plate, which has excellent thermal insulation performance.
Features
1. The box adopts the overall structure, the inner SUS304B stainless steel plate, the outer Cold rolled steel plate is sprayed, and the thermal insulation material is ultra-fine Glass thermal insulation cotton.
2. The door sealing is made of double-decked silicone rubber sealing material, and the observation window is a multi-layer conductive film tempered hollow Glass with built-in heating wire and lighting.
3. The heater adopts a porcelain frame nickel-chrome wire electric heater, which has little thermal inertia, long service life, and stable and reliable control.
4. The control system adopts LCD Touchscreen temperature and humidity controller and Schneider electrical components, and supports full Chinese menu operation.
5. 120 sets of setting programs, each with a maximum of 99 steps, can be connected to the cycle, and the power failure recovery function is flexible.
6. Multiple safety protection measures, including phase loss, over-temperature, overload, etc., independent over-temperature protectors ensure equipment safety.
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, and the output PID signal of the instrument is controlled by solid-state relay; the refrigeration system adopts shunt method to adjust the cooling capacity. The control system adopts continuous PID control mode, which sets and monitors the temperature through the LCD Touchscreen. The air supply mode is the upper air supply and the lower air return, and the temperature transducer is placed in a trend to ensure temperature uniformity and stability.
Applications
Electrical, electronic products, components, parts and materials in high and low temperature environment storage, transportation and use adaptability test, temperature gradual change test, electronic components stress screening test
Steps
1. Turn on the power supply and check whether the voltage meets 380V +/- 10%.
2. Set the temperature program through the LCD Touchscreen on the controller, and select the fixed value or program operation mode.
3. Set program parameters, including temperature range, time, number of cycles, etc., and save the program.
4. Start the equipment, observe the operating status, and ensure that the fan, heating, and cooling systems are functioning properly.
5. Monitor real-time data, including temperature, running time, etc., and handle any alarms.
6. After the test is completed, turn off the device and disconnect the power supply.
Notice
• Power frequency is stable at 380V +/- 10% when the equipment is running.
• Regularly check the sealing material and observation window to prevent air leakage or frost from affecting the test.
• Before operation, confirm that the safety protection function is normal, such as over-temperature and overload protection.
• Avoid long-term operation under extreme conditions of high or low temperature to prevent equipment overload.
• Disconnect the power supply during maintenance to prevent the risk of electric shock.
• Ensure that the stopper sealing is good when using the test hole to maintain the thermal insulation efficiency.
