Overview
HZAOC GDW-800B low/high temperature 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.
Features
1. The box adopts the overall structure, the liner is imported SUS304B stainless steel, the outer wall is sprayed with Cold rolled steel plate, 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, built-in special heating wire to prevent frost, and is equipped with lighting.
4. The side of the box is equipped with a 50mm test hole with a silicone rubber insulation plug.
5. The heater adopts porcelain frame nickel-chrome wire electric heater, which has little thermal inertness and long service life.
6. Low temperature refrigeration adopts French "Taikang" fully enclosed Compressor, and key refrigeration components use imported brand products from many countries.
7. Control system with High Accuracy Digital Temperature Controller, accurate and stable control, long-term no drift.
8. Safety protection system, including independent over-temperature protector and multiple electrical protection.
9. 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 equipment is heated by the electric heater in the air-conditioning cabinet and cooled by the French Taikang fully enclosed Compressor refrigeration system to achieve temperature control of the studio. The temperature controller receives the signal of the PT100 Sensor, controls the solid-state relay to adjust the heater Power through PID operation, and uses the shunt method to adjust the cooling capacity, so as to achieve High Accuracy temperature control and circulation. The fan prompts the air to circulate between the studio (upper air supply and lower air return) and the regulating cabinet to ensure uniform temperature.
Applications
Electrical and electronic products, components, parts and materials adaptability test, stress screening test
Standards
GB/T2423.1-2001、GB/T2423.2-2001、GB/T10592-2008、GB/T10589-1989、GB/T11158-1989、IEC68-2-1、IEC68-2-2
Steps
1. Ensure that the equipment is placed in an environment that meets the requirements (room temperature below 28 ° C, well ventilated, and no matter within 80 cm around).
2. Connect the AC380V +/- 10%/50Hz three-phase four-wire power supply.
3. Start the device through the operation panel and check whether the function buttons and indicator lights are normal.
4. Set the required test temperature, time, and other parameters on the temperature controller.
5. Put the sample into the studio and close the box door to ensure sealing.
6. Start the test program and the device starts running.
7. During the test, the specimen condition can be monitored through the observation window.
8. After the test is completed, the device stops running according to the program and the sample is taken out.
Notice
• Equipment Operating Environment Temperature must be between 5 ° C and + 28 ° C, with an average temperature of ≤ 28 ° C within 24 hours.
• Environmental humidity should be ≤ 85%.
• Must use AC380V +/- 10%/50Hz three-phase four-wire power supply.
• The operating environment should be below 28 degrees and well ventilated.
• No items can be placed within 80 cm of the front, rear, left and right of the equipment placement.
Before starting the equipment, ensure that the circulating fan starts normally, otherwise the refrigeration and heating system will not work.
• Pay attention to the status of various protection indicators when the equipment is running, and deal with any abnormalities in time.
• Regularly check the integrity of door seals, test hole plugs and other seals.
